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chenguang
2026-02-21 20:06:17 -05:00
parent 3d0fc3c935
commit 61eca30a39
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3-5 GPIO_光敏传感器/Library/stm32f10x_rtc.h Normal file
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/**
******************************************************************************
* @file stm32f10x_rtc.h
* @author MCD Application Team
* @version V3.5.0
* @date 11-March-2011
* @brief This file contains all the functions prototypes for the RTC firmware
* library.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F10x_RTC_H
#define __STM32F10x_RTC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
/** @addtogroup STM32F10x_StdPeriph_Driver
* @{
*/
/** @addtogroup RTC
* @{
*/
/** @defgroup RTC_Exported_Types
* @{
*/
/**
* @}
*/
/** @defgroup RTC_Exported_Constants
* @{
*/
/** @defgroup RTC_interrupts_define
* @{
*/
#define RTC_IT_OW ((uint16_t)0x0004) /*!< Overflow interrupt */
#define RTC_IT_ALR ((uint16_t)0x0002) /*!< Alarm interrupt */
#define RTC_IT_SEC ((uint16_t)0x0001) /*!< Second interrupt */
#define IS_RTC_IT(IT) ((((IT) & (uint16_t)0xFFF8) == 0x00) && ((IT) != 0x00))
#define IS_RTC_GET_IT(IT) (((IT) == RTC_IT_OW) || ((IT) == RTC_IT_ALR) || \
((IT) == RTC_IT_SEC))
/**
* @}
*/
/** @defgroup RTC_interrupts_flags
* @{
*/
#define RTC_FLAG_RTOFF ((uint16_t)0x0020) /*!< RTC Operation OFF flag */
#define RTC_FLAG_RSF ((uint16_t)0x0008) /*!< Registers Synchronized flag */
#define RTC_FLAG_OW ((uint16_t)0x0004) /*!< Overflow flag */
#define RTC_FLAG_ALR ((uint16_t)0x0002) /*!< Alarm flag */
#define RTC_FLAG_SEC ((uint16_t)0x0001) /*!< Second flag */
#define IS_RTC_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0xFFF0) == 0x00) && ((FLAG) != 0x00))
#define IS_RTC_GET_FLAG(FLAG) (((FLAG) == RTC_FLAG_RTOFF) || ((FLAG) == RTC_FLAG_RSF) || \
((FLAG) == RTC_FLAG_OW) || ((FLAG) == RTC_FLAG_ALR) || \
((FLAG) == RTC_FLAG_SEC))
#define IS_RTC_PRESCALER(PRESCALER) ((PRESCALER) <= 0xFFFFF)
/**
* @}
*/
/**
* @}
*/
/** @defgroup RTC_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup RTC_Exported_Functions
* @{
*/
void RTC_ITConfig(uint16_t RTC_IT, FunctionalState NewState);
void RTC_EnterConfigMode(void);
void RTC_ExitConfigMode(void);
uint32_t RTC_GetCounter(void);
void RTC_SetCounter(uint32_t CounterValue);
void RTC_SetPrescaler(uint32_t PrescalerValue);
void RTC_SetAlarm(uint32_t AlarmValue);
uint32_t RTC_GetDivider(void);
void RTC_WaitForLastTask(void);
void RTC_WaitForSynchro(void);
FlagStatus RTC_GetFlagStatus(uint16_t RTC_FLAG);
void RTC_ClearFlag(uint16_t RTC_FLAG);
ITStatus RTC_GetITStatus(uint16_t RTC_IT);
void RTC_ClearITPendingBit(uint16_t RTC_IT);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F10x_RTC_H */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/

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3-5 GPIO_光敏传感器/Library/stm32f10x_sdio.c Normal file
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/**
******************************************************************************
* @file stm32f10x_sdio.c
* @author MCD Application Team
* @version V3.5.0
* @date 11-March-2011
* @brief This file provides all the SDIO firmware functions.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_sdio.h"
#include "stm32f10x_rcc.h"
/** @addtogroup STM32F10x_StdPeriph_Driver
* @{
*/
/** @defgroup SDIO
* @brief SDIO driver modules
* @{
*/
/** @defgroup SDIO_Private_TypesDefinitions
* @{
*/
/* ------------ SDIO registers bit address in the alias region ----------- */
#define SDIO_OFFSET (SDIO_BASE - PERIPH_BASE)
/* --- CLKCR Register ---*/
/* Alias word address of CLKEN bit */
#define CLKCR_OFFSET (SDIO_OFFSET + 0x04)
#define CLKEN_BitNumber 0x08
#define CLKCR_CLKEN_BB (PERIPH_BB_BASE + (CLKCR_OFFSET * 32) + (CLKEN_BitNumber * 4))
/* --- CMD Register ---*/
/* Alias word address of SDIOSUSPEND bit */
#define CMD_OFFSET (SDIO_OFFSET + 0x0C)
#define SDIOSUSPEND_BitNumber 0x0B
#define CMD_SDIOSUSPEND_BB (PERIPH_BB_BASE + (CMD_OFFSET * 32) + (SDIOSUSPEND_BitNumber * 4))
/* Alias word address of ENCMDCOMPL bit */
#define ENCMDCOMPL_BitNumber 0x0C
#define CMD_ENCMDCOMPL_BB (PERIPH_BB_BASE + (CMD_OFFSET * 32) + (ENCMDCOMPL_BitNumber * 4))
/* Alias word address of NIEN bit */
#define NIEN_BitNumber 0x0D
#define CMD_NIEN_BB (PERIPH_BB_BASE + (CMD_OFFSET * 32) + (NIEN_BitNumber * 4))
/* Alias word address of ATACMD bit */
#define ATACMD_BitNumber 0x0E
#define CMD_ATACMD_BB (PERIPH_BB_BASE + (CMD_OFFSET * 32) + (ATACMD_BitNumber * 4))
/* --- DCTRL Register ---*/
/* Alias word address of DMAEN bit */
#define DCTRL_OFFSET (SDIO_OFFSET + 0x2C)
#define DMAEN_BitNumber 0x03
#define DCTRL_DMAEN_BB (PERIPH_BB_BASE + (DCTRL_OFFSET * 32) + (DMAEN_BitNumber * 4))
/* Alias word address of RWSTART bit */
#define RWSTART_BitNumber 0x08
#define DCTRL_RWSTART_BB (PERIPH_BB_BASE + (DCTRL_OFFSET * 32) + (RWSTART_BitNumber * 4))
/* Alias word address of RWSTOP bit */
#define RWSTOP_BitNumber 0x09
#define DCTRL_RWSTOP_BB (PERIPH_BB_BASE + (DCTRL_OFFSET * 32) + (RWSTOP_BitNumber * 4))
/* Alias word address of RWMOD bit */
#define RWMOD_BitNumber 0x0A
#define DCTRL_RWMOD_BB (PERIPH_BB_BASE + (DCTRL_OFFSET * 32) + (RWMOD_BitNumber * 4))
/* Alias word address of SDIOEN bit */
#define SDIOEN_BitNumber 0x0B
#define DCTRL_SDIOEN_BB (PERIPH_BB_BASE + (DCTRL_OFFSET * 32) + (SDIOEN_BitNumber * 4))
/* ---------------------- SDIO registers bit mask ------------------------ */
/* --- CLKCR Register ---*/
/* CLKCR register clear mask */
#define CLKCR_CLEAR_MASK ((uint32_t)0xFFFF8100)
/* --- PWRCTRL Register ---*/
/* SDIO PWRCTRL Mask */
#define PWR_PWRCTRL_MASK ((uint32_t)0xFFFFFFFC)
/* --- DCTRL Register ---*/
/* SDIO DCTRL Clear Mask */
#define DCTRL_CLEAR_MASK ((uint32_t)0xFFFFFF08)
/* --- CMD Register ---*/
/* CMD Register clear mask */
#define CMD_CLEAR_MASK ((uint32_t)0xFFFFF800)
/* SDIO RESP Registers Address */
#define SDIO_RESP_ADDR ((uint32_t)(SDIO_BASE + 0x14))
/**
* @}
*/
/** @defgroup SDIO_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup SDIO_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup SDIO_Private_Variables
* @{
*/
/**
* @}
*/
/** @defgroup SDIO_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup SDIO_Private_Functions
* @{
*/
/**
* @brief Deinitializes the SDIO peripheral registers to their default reset values.
* @param None
* @retval None
*/
void SDIO_DeInit(void)
{
SDIO->POWER = 0x00000000;
SDIO->CLKCR = 0x00000000;
SDIO->ARG = 0x00000000;
SDIO->CMD = 0x00000000;
SDIO->DTIMER = 0x00000000;
SDIO->DLEN = 0x00000000;
SDIO->DCTRL = 0x00000000;
SDIO->ICR = 0x00C007FF;
SDIO->MASK = 0x00000000;
}
/**
* @brief Initializes the SDIO peripheral according to the specified
* parameters in the SDIO_InitStruct.
* @param SDIO_InitStruct : pointer to a SDIO_InitTypeDef structure
* that contains the configuration information for the SDIO peripheral.
* @retval None
*/
void SDIO_Init(SDIO_InitTypeDef* SDIO_InitStruct)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_SDIO_CLOCK_EDGE(SDIO_InitStruct->SDIO_ClockEdge));
assert_param(IS_SDIO_CLOCK_BYPASS(SDIO_InitStruct->SDIO_ClockBypass));
assert_param(IS_SDIO_CLOCK_POWER_SAVE(SDIO_InitStruct->SDIO_ClockPowerSave));
assert_param(IS_SDIO_BUS_WIDE(SDIO_InitStruct->SDIO_BusWide));
assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(SDIO_InitStruct->SDIO_HardwareFlowControl));
/*---------------------------- SDIO CLKCR Configuration ------------------------*/
/* Get the SDIO CLKCR value */
tmpreg = SDIO->CLKCR;
/* Clear CLKDIV, PWRSAV, BYPASS, WIDBUS, NEGEDGE, HWFC_EN bits */
tmpreg &= CLKCR_CLEAR_MASK;
/* Set CLKDIV bits according to SDIO_ClockDiv value */
/* Set PWRSAV bit according to SDIO_ClockPowerSave value */
/* Set BYPASS bit according to SDIO_ClockBypass value */
/* Set WIDBUS bits according to SDIO_BusWide value */
/* Set NEGEDGE bits according to SDIO_ClockEdge value */
/* Set HWFC_EN bits according to SDIO_HardwareFlowControl value */
tmpreg |= (SDIO_InitStruct->SDIO_ClockDiv | SDIO_InitStruct->SDIO_ClockPowerSave |
SDIO_InitStruct->SDIO_ClockBypass | SDIO_InitStruct->SDIO_BusWide |
SDIO_InitStruct->SDIO_ClockEdge | SDIO_InitStruct->SDIO_HardwareFlowControl);
/* Write to SDIO CLKCR */
SDIO->CLKCR = tmpreg;
}
/**
* @brief Fills each SDIO_InitStruct member with its default value.
* @param SDIO_InitStruct: pointer to an SDIO_InitTypeDef structure which
* will be initialized.
* @retval None
*/
void SDIO_StructInit(SDIO_InitTypeDef* SDIO_InitStruct)
{
/* SDIO_InitStruct members default value */
SDIO_InitStruct->SDIO_ClockDiv = 0x00;
SDIO_InitStruct->SDIO_ClockEdge = SDIO_ClockEdge_Rising;
SDIO_InitStruct->SDIO_ClockBypass = SDIO_ClockBypass_Disable;
SDIO_InitStruct->SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
SDIO_InitStruct->SDIO_BusWide = SDIO_BusWide_1b;
SDIO_InitStruct->SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
}
/**
* @brief Enables or disables the SDIO Clock.
* @param NewState: new state of the SDIO Clock. This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_ClockCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CLKCR_CLKEN_BB = (uint32_t)NewState;
}
/**
* @brief Sets the power status of the controller.
* @param SDIO_PowerState: new state of the Power state.
* This parameter can be one of the following values:
* @arg SDIO_PowerState_OFF
* @arg SDIO_PowerState_ON
* @retval None
*/
void SDIO_SetPowerState(uint32_t SDIO_PowerState)
{
/* Check the parameters */
assert_param(IS_SDIO_POWER_STATE(SDIO_PowerState));
SDIO->POWER &= PWR_PWRCTRL_MASK;
SDIO->POWER |= SDIO_PowerState;
}
/**
* @brief Gets the power status of the controller.
* @param None
* @retval Power status of the controller. The returned value can
* be one of the following:
* - 0x00: Power OFF
* - 0x02: Power UP
* - 0x03: Power ON
*/
uint32_t SDIO_GetPowerState(void)
{
return (SDIO->POWER & (~PWR_PWRCTRL_MASK));
}
/**
* @brief Enables or disables the SDIO interrupts.
* @param SDIO_IT: specifies the SDIO interrupt sources to be enabled or disabled.
* This parameter can be one or a combination of the following values:
* @arg SDIO_IT_CCRCFAIL: Command response received (CRC check failed) interrupt
* @arg SDIO_IT_DCRCFAIL: Data block sent/received (CRC check failed) interrupt
* @arg SDIO_IT_CTIMEOUT: Command response timeout interrupt
* @arg SDIO_IT_DTIMEOUT: Data timeout interrupt
* @arg SDIO_IT_TXUNDERR: Transmit FIFO underrun error interrupt
* @arg SDIO_IT_RXOVERR: Received FIFO overrun error interrupt
* @arg SDIO_IT_CMDREND: Command response received (CRC check passed) interrupt
* @arg SDIO_IT_CMDSENT: Command sent (no response required) interrupt
* @arg SDIO_IT_DATAEND: Data end (data counter, SDIDCOUNT, is zero) interrupt
* @arg SDIO_IT_STBITERR: Start bit not detected on all data signals in wide
* bus mode interrupt
* @arg SDIO_IT_DBCKEND: Data block sent/received (CRC check passed) interrupt
* @arg SDIO_IT_CMDACT: Command transfer in progress interrupt
* @arg SDIO_IT_TXACT: Data transmit in progress interrupt
* @arg SDIO_IT_RXACT: Data receive in progress interrupt
* @arg SDIO_IT_TXFIFOHE: Transmit FIFO Half Empty interrupt
* @arg SDIO_IT_RXFIFOHF: Receive FIFO Half Full interrupt
* @arg SDIO_IT_TXFIFOF: Transmit FIFO full interrupt
* @arg SDIO_IT_RXFIFOF: Receive FIFO full interrupt
* @arg SDIO_IT_TXFIFOE: Transmit FIFO empty interrupt
* @arg SDIO_IT_RXFIFOE: Receive FIFO empty interrupt
* @arg SDIO_IT_TXDAVL: Data available in transmit FIFO interrupt
* @arg SDIO_IT_RXDAVL: Data available in receive FIFO interrupt
* @arg SDIO_IT_SDIOIT: SD I/O interrupt received interrupt
* @arg SDIO_IT_CEATAEND: CE-ATA command completion signal received for CMD61 interrupt
* @param NewState: new state of the specified SDIO interrupts.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_ITConfig(uint32_t SDIO_IT, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SDIO_IT(SDIO_IT));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the SDIO interrupts */
SDIO->MASK |= SDIO_IT;
}
else
{
/* Disable the SDIO interrupts */
SDIO->MASK &= ~SDIO_IT;
}
}
/**
* @brief Enables or disables the SDIO DMA request.
* @param NewState: new state of the selected SDIO DMA request.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_DMACmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) DCTRL_DMAEN_BB = (uint32_t)NewState;
}
/**
* @brief Initializes the SDIO Command according to the specified
* parameters in the SDIO_CmdInitStruct and send the command.
* @param SDIO_CmdInitStruct : pointer to a SDIO_CmdInitTypeDef
* structure that contains the configuration information for the SDIO command.
* @retval None
*/
void SDIO_SendCommand(SDIO_CmdInitTypeDef *SDIO_CmdInitStruct)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_SDIO_CMD_INDEX(SDIO_CmdInitStruct->SDIO_CmdIndex));
assert_param(IS_SDIO_RESPONSE(SDIO_CmdInitStruct->SDIO_Response));
assert_param(IS_SDIO_WAIT(SDIO_CmdInitStruct->SDIO_Wait));
assert_param(IS_SDIO_CPSM(SDIO_CmdInitStruct->SDIO_CPSM));
/*---------------------------- SDIO ARG Configuration ------------------------*/
/* Set the SDIO Argument value */
SDIO->ARG = SDIO_CmdInitStruct->SDIO_Argument;
/*---------------------------- SDIO CMD Configuration ------------------------*/
/* Get the SDIO CMD value */
tmpreg = SDIO->CMD;
/* Clear CMDINDEX, WAITRESP, WAITINT, WAITPEND, CPSMEN bits */
tmpreg &= CMD_CLEAR_MASK;
/* Set CMDINDEX bits according to SDIO_CmdIndex value */
/* Set WAITRESP bits according to SDIO_Response value */
/* Set WAITINT and WAITPEND bits according to SDIO_Wait value */
/* Set CPSMEN bits according to SDIO_CPSM value */
tmpreg |= (uint32_t)SDIO_CmdInitStruct->SDIO_CmdIndex | SDIO_CmdInitStruct->SDIO_Response
| SDIO_CmdInitStruct->SDIO_Wait | SDIO_CmdInitStruct->SDIO_CPSM;
/* Write to SDIO CMD */
SDIO->CMD = tmpreg;
}
/**
* @brief Fills each SDIO_CmdInitStruct member with its default value.
* @param SDIO_CmdInitStruct: pointer to an SDIO_CmdInitTypeDef
* structure which will be initialized.
* @retval None
*/
void SDIO_CmdStructInit(SDIO_CmdInitTypeDef* SDIO_CmdInitStruct)
{
/* SDIO_CmdInitStruct members default value */
SDIO_CmdInitStruct->SDIO_Argument = 0x00;
SDIO_CmdInitStruct->SDIO_CmdIndex = 0x00;
SDIO_CmdInitStruct->SDIO_Response = SDIO_Response_No;
SDIO_CmdInitStruct->SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStruct->SDIO_CPSM = SDIO_CPSM_Disable;
}
/**
* @brief Returns command index of last command for which response received.
* @param None
* @retval Returns the command index of the last command response received.
*/
uint8_t SDIO_GetCommandResponse(void)
{
return (uint8_t)(SDIO->RESPCMD);
}
/**
* @brief Returns response received from the card for the last command.
* @param SDIO_RESP: Specifies the SDIO response register.
* This parameter can be one of the following values:
* @arg SDIO_RESP1: Response Register 1
* @arg SDIO_RESP2: Response Register 2
* @arg SDIO_RESP3: Response Register 3
* @arg SDIO_RESP4: Response Register 4
* @retval The Corresponding response register value.
*/
uint32_t SDIO_GetResponse(uint32_t SDIO_RESP)
{
__IO uint32_t tmp = 0;
/* Check the parameters */
assert_param(IS_SDIO_RESP(SDIO_RESP));
tmp = SDIO_RESP_ADDR + SDIO_RESP;
return (*(__IO uint32_t *) tmp);
}
/**
* @brief Initializes the SDIO data path according to the specified
* parameters in the SDIO_DataInitStruct.
* @param SDIO_DataInitStruct : pointer to a SDIO_DataInitTypeDef structure that
* contains the configuration information for the SDIO command.
* @retval None
*/
void SDIO_DataConfig(SDIO_DataInitTypeDef* SDIO_DataInitStruct)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_SDIO_DATA_LENGTH(SDIO_DataInitStruct->SDIO_DataLength));
assert_param(IS_SDIO_BLOCK_SIZE(SDIO_DataInitStruct->SDIO_DataBlockSize));
assert_param(IS_SDIO_TRANSFER_DIR(SDIO_DataInitStruct->SDIO_TransferDir));
assert_param(IS_SDIO_TRANSFER_MODE(SDIO_DataInitStruct->SDIO_TransferMode));
assert_param(IS_SDIO_DPSM(SDIO_DataInitStruct->SDIO_DPSM));
/*---------------------------- SDIO DTIMER Configuration ---------------------*/
/* Set the SDIO Data TimeOut value */
SDIO->DTIMER = SDIO_DataInitStruct->SDIO_DataTimeOut;
/*---------------------------- SDIO DLEN Configuration -----------------------*/
/* Set the SDIO DataLength value */
SDIO->DLEN = SDIO_DataInitStruct->SDIO_DataLength;
/*---------------------------- SDIO DCTRL Configuration ----------------------*/
/* Get the SDIO DCTRL value */
tmpreg = SDIO->DCTRL;
/* Clear DEN, DTMODE, DTDIR and DBCKSIZE bits */
tmpreg &= DCTRL_CLEAR_MASK;
/* Set DEN bit according to SDIO_DPSM value */
/* Set DTMODE bit according to SDIO_TransferMode value */
/* Set DTDIR bit according to SDIO_TransferDir value */
/* Set DBCKSIZE bits according to SDIO_DataBlockSize value */
tmpreg |= (uint32_t)SDIO_DataInitStruct->SDIO_DataBlockSize | SDIO_DataInitStruct->SDIO_TransferDir
| SDIO_DataInitStruct->SDIO_TransferMode | SDIO_DataInitStruct->SDIO_DPSM;
/* Write to SDIO DCTRL */
SDIO->DCTRL = tmpreg;
}
/**
* @brief Fills each SDIO_DataInitStruct member with its default value.
* @param SDIO_DataInitStruct: pointer to an SDIO_DataInitTypeDef structure which
* will be initialized.
* @retval None
*/
void SDIO_DataStructInit(SDIO_DataInitTypeDef* SDIO_DataInitStruct)
{
/* SDIO_DataInitStruct members default value */
SDIO_DataInitStruct->SDIO_DataTimeOut = 0xFFFFFFFF;
SDIO_DataInitStruct->SDIO_DataLength = 0x00;
SDIO_DataInitStruct->SDIO_DataBlockSize = SDIO_DataBlockSize_1b;
SDIO_DataInitStruct->SDIO_TransferDir = SDIO_TransferDir_ToCard;
SDIO_DataInitStruct->SDIO_TransferMode = SDIO_TransferMode_Block;
SDIO_DataInitStruct->SDIO_DPSM = SDIO_DPSM_Disable;
}
/**
* @brief Returns number of remaining data bytes to be transferred.
* @param None
* @retval Number of remaining data bytes to be transferred
*/
uint32_t SDIO_GetDataCounter(void)
{
return SDIO->DCOUNT;
}
/**
* @brief Read one data word from Rx FIFO.
* @param None
* @retval Data received
*/
uint32_t SDIO_ReadData(void)
{
return SDIO->FIFO;
}
/**
* @brief Write one data word to Tx FIFO.
* @param Data: 32-bit data word to write.
* @retval None
*/
void SDIO_WriteData(uint32_t Data)
{
SDIO->FIFO = Data;
}
/**
* @brief Returns the number of words left to be written to or read from FIFO.
* @param None
* @retval Remaining number of words.
*/
uint32_t SDIO_GetFIFOCount(void)
{
return SDIO->FIFOCNT;
}
/**
* @brief Starts the SD I/O Read Wait operation.
* @param NewState: new state of the Start SDIO Read Wait operation.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_StartSDIOReadWait(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) DCTRL_RWSTART_BB = (uint32_t) NewState;
}
/**
* @brief Stops the SD I/O Read Wait operation.
* @param NewState: new state of the Stop SDIO Read Wait operation.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_StopSDIOReadWait(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) DCTRL_RWSTOP_BB = (uint32_t) NewState;
}
/**
* @brief Sets one of the two options of inserting read wait interval.
* @param SDIO_ReadWaitMode: SD I/O Read Wait operation mode.
* This parameter can be:
* @arg SDIO_ReadWaitMode_CLK: Read Wait control by stopping SDIOCLK
* @arg SDIO_ReadWaitMode_DATA2: Read Wait control using SDIO_DATA2
* @retval None
*/
void SDIO_SetSDIOReadWaitMode(uint32_t SDIO_ReadWaitMode)
{
/* Check the parameters */
assert_param(IS_SDIO_READWAIT_MODE(SDIO_ReadWaitMode));
*(__IO uint32_t *) DCTRL_RWMOD_BB = SDIO_ReadWaitMode;
}
/**
* @brief Enables or disables the SD I/O Mode Operation.
* @param NewState: new state of SDIO specific operation.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_SetSDIOOperation(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) DCTRL_SDIOEN_BB = (uint32_t)NewState;
}
/**
* @brief Enables or disables the SD I/O Mode suspend command sending.
* @param NewState: new state of the SD I/O Mode suspend command.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_SendSDIOSuspendCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CMD_SDIOSUSPEND_BB = (uint32_t)NewState;
}
/**
* @brief Enables or disables the command completion signal.
* @param NewState: new state of command completion signal.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_CommandCompletionCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CMD_ENCMDCOMPL_BB = (uint32_t)NewState;
}
/**
* @brief Enables or disables the CE-ATA interrupt.
* @param NewState: new state of CE-ATA interrupt. This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_CEATAITCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CMD_NIEN_BB = (uint32_t)((~((uint32_t)NewState)) & ((uint32_t)0x1));
}
/**
* @brief Sends CE-ATA command (CMD61).
* @param NewState: new state of CE-ATA command. This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SDIO_SendCEATACmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CMD_ATACMD_BB = (uint32_t)NewState;
}
/**
* @brief Checks whether the specified SDIO flag is set or not.
* @param SDIO_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg SDIO_FLAG_CCRCFAIL: Command response received (CRC check failed)
* @arg SDIO_FLAG_DCRCFAIL: Data block sent/received (CRC check failed)
* @arg SDIO_FLAG_CTIMEOUT: Command response timeout
* @arg SDIO_FLAG_DTIMEOUT: Data timeout
* @arg SDIO_FLAG_TXUNDERR: Transmit FIFO underrun error
* @arg SDIO_FLAG_RXOVERR: Received FIFO overrun error
* @arg SDIO_FLAG_CMDREND: Command response received (CRC check passed)
* @arg SDIO_FLAG_CMDSENT: Command sent (no response required)
* @arg SDIO_FLAG_DATAEND: Data end (data counter, SDIDCOUNT, is zero)
* @arg SDIO_FLAG_STBITERR: Start bit not detected on all data signals in wide
* bus mode.
* @arg SDIO_FLAG_DBCKEND: Data block sent/received (CRC check passed)
* @arg SDIO_FLAG_CMDACT: Command transfer in progress
* @arg SDIO_FLAG_TXACT: Data transmit in progress
* @arg SDIO_FLAG_RXACT: Data receive in progress
* @arg SDIO_FLAG_TXFIFOHE: Transmit FIFO Half Empty
* @arg SDIO_FLAG_RXFIFOHF: Receive FIFO Half Full
* @arg SDIO_FLAG_TXFIFOF: Transmit FIFO full
* @arg SDIO_FLAG_RXFIFOF: Receive FIFO full
* @arg SDIO_FLAG_TXFIFOE: Transmit FIFO empty
* @arg SDIO_FLAG_RXFIFOE: Receive FIFO empty
* @arg SDIO_FLAG_TXDAVL: Data available in transmit FIFO
* @arg SDIO_FLAG_RXDAVL: Data available in receive FIFO
* @arg SDIO_FLAG_SDIOIT: SD I/O interrupt received
* @arg SDIO_FLAG_CEATAEND: CE-ATA command completion signal received for CMD61
* @retval The new state of SDIO_FLAG (SET or RESET).
*/
FlagStatus SDIO_GetFlagStatus(uint32_t SDIO_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_SDIO_FLAG(SDIO_FLAG));
if ((SDIO->STA & SDIO_FLAG) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/**
* @brief Clears the SDIO's pending flags.
* @param SDIO_FLAG: specifies the flag to clear.
* This parameter can be one or a combination of the following values:
* @arg SDIO_FLAG_CCRCFAIL: Command response received (CRC check failed)
* @arg SDIO_FLAG_DCRCFAIL: Data block sent/received (CRC check failed)
* @arg SDIO_FLAG_CTIMEOUT: Command response timeout
* @arg SDIO_FLAG_DTIMEOUT: Data timeout
* @arg SDIO_FLAG_TXUNDERR: Transmit FIFO underrun error
* @arg SDIO_FLAG_RXOVERR: Received FIFO overrun error
* @arg SDIO_FLAG_CMDREND: Command response received (CRC check passed)
* @arg SDIO_FLAG_CMDSENT: Command sent (no response required)
* @arg SDIO_FLAG_DATAEND: Data end (data counter, SDIDCOUNT, is zero)
* @arg SDIO_FLAG_STBITERR: Start bit not detected on all data signals in wide
* bus mode
* @arg SDIO_FLAG_DBCKEND: Data block sent/received (CRC check passed)
* @arg SDIO_FLAG_SDIOIT: SD I/O interrupt received
* @arg SDIO_FLAG_CEATAEND: CE-ATA command completion signal received for CMD61
* @retval None
*/
void SDIO_ClearFlag(uint32_t SDIO_FLAG)
{
/* Check the parameters */
assert_param(IS_SDIO_CLEAR_FLAG(SDIO_FLAG));
SDIO->ICR = SDIO_FLAG;
}
/**
* @brief Checks whether the specified SDIO interrupt has occurred or not.
* @param SDIO_IT: specifies the SDIO interrupt source to check.
* This parameter can be one of the following values:
* @arg SDIO_IT_CCRCFAIL: Command response received (CRC check failed) interrupt
* @arg SDIO_IT_DCRCFAIL: Data block sent/received (CRC check failed) interrupt
* @arg SDIO_IT_CTIMEOUT: Command response timeout interrupt
* @arg SDIO_IT_DTIMEOUT: Data timeout interrupt
* @arg SDIO_IT_TXUNDERR: Transmit FIFO underrun error interrupt
* @arg SDIO_IT_RXOVERR: Received FIFO overrun error interrupt
* @arg SDIO_IT_CMDREND: Command response received (CRC check passed) interrupt
* @arg SDIO_IT_CMDSENT: Command sent (no response required) interrupt
* @arg SDIO_IT_DATAEND: Data end (data counter, SDIDCOUNT, is zero) interrupt
* @arg SDIO_IT_STBITERR: Start bit not detected on all data signals in wide
* bus mode interrupt
* @arg SDIO_IT_DBCKEND: Data block sent/received (CRC check passed) interrupt
* @arg SDIO_IT_CMDACT: Command transfer in progress interrupt
* @arg SDIO_IT_TXACT: Data transmit in progress interrupt
* @arg SDIO_IT_RXACT: Data receive in progress interrupt
* @arg SDIO_IT_TXFIFOHE: Transmit FIFO Half Empty interrupt
* @arg SDIO_IT_RXFIFOHF: Receive FIFO Half Full interrupt
* @arg SDIO_IT_TXFIFOF: Transmit FIFO full interrupt
* @arg SDIO_IT_RXFIFOF: Receive FIFO full interrupt
* @arg SDIO_IT_TXFIFOE: Transmit FIFO empty interrupt
* @arg SDIO_IT_RXFIFOE: Receive FIFO empty interrupt
* @arg SDIO_IT_TXDAVL: Data available in transmit FIFO interrupt
* @arg SDIO_IT_RXDAVL: Data available in receive FIFO interrupt
* @arg SDIO_IT_SDIOIT: SD I/O interrupt received interrupt
* @arg SDIO_IT_CEATAEND: CE-ATA command completion signal received for CMD61 interrupt
* @retval The new state of SDIO_IT (SET or RESET).
*/
ITStatus SDIO_GetITStatus(uint32_t SDIO_IT)
{
ITStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_SDIO_GET_IT(SDIO_IT));
if ((SDIO->STA & SDIO_IT) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/**
* @brief Clears the SDIO's interrupt pending bits.
* @param SDIO_IT: specifies the interrupt pending bit to clear.
* This parameter can be one or a combination of the following values:
* @arg SDIO_IT_CCRCFAIL: Command response received (CRC check failed) interrupt
* @arg SDIO_IT_DCRCFAIL: Data block sent/received (CRC check failed) interrupt
* @arg SDIO_IT_CTIMEOUT: Command response timeout interrupt
* @arg SDIO_IT_DTIMEOUT: Data timeout interrupt
* @arg SDIO_IT_TXUNDERR: Transmit FIFO underrun error interrupt
* @arg SDIO_IT_RXOVERR: Received FIFO overrun error interrupt
* @arg SDIO_IT_CMDREND: Command response received (CRC check passed) interrupt
* @arg SDIO_IT_CMDSENT: Command sent (no response required) interrupt
* @arg SDIO_IT_DATAEND: Data end (data counter, SDIDCOUNT, is zero) interrupt
* @arg SDIO_IT_STBITERR: Start bit not detected on all data signals in wide
* bus mode interrupt
* @arg SDIO_IT_SDIOIT: SD I/O interrupt received interrupt
* @arg SDIO_IT_CEATAEND: CE-ATA command completion signal received for CMD61
* @retval None
*/
void SDIO_ClearITPendingBit(uint32_t SDIO_IT)
{
/* Check the parameters */
assert_param(IS_SDIO_CLEAR_IT(SDIO_IT));
SDIO->ICR = SDIO_IT;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/

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@@ -0,0 +1,531 @@
/**
******************************************************************************
* @file stm32f10x_sdio.h
* @author MCD Application Team
* @version V3.5.0
* @date 11-March-2011
* @brief This file contains all the functions prototypes for the SDIO firmware
* library.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F10x_SDIO_H
#define __STM32F10x_SDIO_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
/** @addtogroup STM32F10x_StdPeriph_Driver
* @{
*/
/** @addtogroup SDIO
* @{
*/
/** @defgroup SDIO_Exported_Types
* @{
*/
typedef struct
{
uint32_t SDIO_ClockEdge; /*!< Specifies the clock transition on which the bit capture is made.
This parameter can be a value of @ref SDIO_Clock_Edge */
uint32_t SDIO_ClockBypass; /*!< Specifies whether the SDIO Clock divider bypass is
enabled or disabled.
This parameter can be a value of @ref SDIO_Clock_Bypass */
uint32_t SDIO_ClockPowerSave; /*!< Specifies whether SDIO Clock output is enabled or
disabled when the bus is idle.
This parameter can be a value of @ref SDIO_Clock_Power_Save */
uint32_t SDIO_BusWide; /*!< Specifies the SDIO bus width.
This parameter can be a value of @ref SDIO_Bus_Wide */
uint32_t SDIO_HardwareFlowControl; /*!< Specifies whether the SDIO hardware flow control is enabled or disabled.
This parameter can be a value of @ref SDIO_Hardware_Flow_Control */
uint8_t SDIO_ClockDiv; /*!< Specifies the clock frequency of the SDIO controller.
This parameter can be a value between 0x00 and 0xFF. */
} SDIO_InitTypeDef;
typedef struct
{
uint32_t SDIO_Argument; /*!< Specifies the SDIO command argument which is sent
to a card as part of a command message. If a command
contains an argument, it must be loaded into this register
before writing the command to the command register */
uint32_t SDIO_CmdIndex; /*!< Specifies the SDIO command index. It must be lower than 0x40. */
uint32_t SDIO_Response; /*!< Specifies the SDIO response type.
This parameter can be a value of @ref SDIO_Response_Type */
uint32_t SDIO_Wait; /*!< Specifies whether SDIO wait-for-interrupt request is enabled or disabled.
This parameter can be a value of @ref SDIO_Wait_Interrupt_State */
uint32_t SDIO_CPSM; /*!< Specifies whether SDIO Command path state machine (CPSM)
is enabled or disabled.
This parameter can be a value of @ref SDIO_CPSM_State */
} SDIO_CmdInitTypeDef;
typedef struct
{
uint32_t SDIO_DataTimeOut; /*!< Specifies the data timeout period in card bus clock periods. */
uint32_t SDIO_DataLength; /*!< Specifies the number of data bytes to be transferred. */
uint32_t SDIO_DataBlockSize; /*!< Specifies the data block size for block transfer.
This parameter can be a value of @ref SDIO_Data_Block_Size */
uint32_t SDIO_TransferDir; /*!< Specifies the data transfer direction, whether the transfer
is a read or write.
This parameter can be a value of @ref SDIO_Transfer_Direction */
uint32_t SDIO_TransferMode; /*!< Specifies whether data transfer is in stream or block mode.
This parameter can be a value of @ref SDIO_Transfer_Type */
uint32_t SDIO_DPSM; /*!< Specifies whether SDIO Data path state machine (DPSM)
is enabled or disabled.
This parameter can be a value of @ref SDIO_DPSM_State */
} SDIO_DataInitTypeDef;
/**
* @}
*/
/** @defgroup SDIO_Exported_Constants
* @{
*/
/** @defgroup SDIO_Clock_Edge
* @{
*/
#define SDIO_ClockEdge_Rising ((uint32_t)0x00000000)
#define SDIO_ClockEdge_Falling ((uint32_t)0x00002000)
#define IS_SDIO_CLOCK_EDGE(EDGE) (((EDGE) == SDIO_ClockEdge_Rising) || \
((EDGE) == SDIO_ClockEdge_Falling))
/**
* @}
*/
/** @defgroup SDIO_Clock_Bypass
* @{
*/
#define SDIO_ClockBypass_Disable ((uint32_t)0x00000000)
#define SDIO_ClockBypass_Enable ((uint32_t)0x00000400)
#define IS_SDIO_CLOCK_BYPASS(BYPASS) (((BYPASS) == SDIO_ClockBypass_Disable) || \
((BYPASS) == SDIO_ClockBypass_Enable))
/**
* @}
*/
/** @defgroup SDIO_Clock_Power_Save
* @{
*/
#define SDIO_ClockPowerSave_Disable ((uint32_t)0x00000000)
#define SDIO_ClockPowerSave_Enable ((uint32_t)0x00000200)
#define IS_SDIO_CLOCK_POWER_SAVE(SAVE) (((SAVE) == SDIO_ClockPowerSave_Disable) || \
((SAVE) == SDIO_ClockPowerSave_Enable))
/**
* @}
*/
/** @defgroup SDIO_Bus_Wide
* @{
*/
#define SDIO_BusWide_1b ((uint32_t)0x00000000)
#define SDIO_BusWide_4b ((uint32_t)0x00000800)
#define SDIO_BusWide_8b ((uint32_t)0x00001000)
#define IS_SDIO_BUS_WIDE(WIDE) (((WIDE) == SDIO_BusWide_1b) || ((WIDE) == SDIO_BusWide_4b) || \
((WIDE) == SDIO_BusWide_8b))
/**
* @}
*/
/** @defgroup SDIO_Hardware_Flow_Control
* @{
*/
#define SDIO_HardwareFlowControl_Disable ((uint32_t)0x00000000)
#define SDIO_HardwareFlowControl_Enable ((uint32_t)0x00004000)
#define IS_SDIO_HARDWARE_FLOW_CONTROL(CONTROL) (((CONTROL) == SDIO_HardwareFlowControl_Disable) || \
((CONTROL) == SDIO_HardwareFlowControl_Enable))
/**
* @}
*/
/** @defgroup SDIO_Power_State
* @{
*/
#define SDIO_PowerState_OFF ((uint32_t)0x00000000)
#define SDIO_PowerState_ON ((uint32_t)0x00000003)
#define IS_SDIO_POWER_STATE(STATE) (((STATE) == SDIO_PowerState_OFF) || ((STATE) == SDIO_PowerState_ON))
/**
* @}
*/
/** @defgroup SDIO_Interrupt_sources
* @{
*/
#define SDIO_IT_CCRCFAIL ((uint32_t)0x00000001)
#define SDIO_IT_DCRCFAIL ((uint32_t)0x00000002)
#define SDIO_IT_CTIMEOUT ((uint32_t)0x00000004)
#define SDIO_IT_DTIMEOUT ((uint32_t)0x00000008)
#define SDIO_IT_TXUNDERR ((uint32_t)0x00000010)
#define SDIO_IT_RXOVERR ((uint32_t)0x00000020)
#define SDIO_IT_CMDREND ((uint32_t)0x00000040)
#define SDIO_IT_CMDSENT ((uint32_t)0x00000080)
#define SDIO_IT_DATAEND ((uint32_t)0x00000100)
#define SDIO_IT_STBITERR ((uint32_t)0x00000200)
#define SDIO_IT_DBCKEND ((uint32_t)0x00000400)
#define SDIO_IT_CMDACT ((uint32_t)0x00000800)
#define SDIO_IT_TXACT ((uint32_t)0x00001000)
#define SDIO_IT_RXACT ((uint32_t)0x00002000)
#define SDIO_IT_TXFIFOHE ((uint32_t)0x00004000)
#define SDIO_IT_RXFIFOHF ((uint32_t)0x00008000)
#define SDIO_IT_TXFIFOF ((uint32_t)0x00010000)
#define SDIO_IT_RXFIFOF ((uint32_t)0x00020000)
#define SDIO_IT_TXFIFOE ((uint32_t)0x00040000)
#define SDIO_IT_RXFIFOE ((uint32_t)0x00080000)
#define SDIO_IT_TXDAVL ((uint32_t)0x00100000)
#define SDIO_IT_RXDAVL ((uint32_t)0x00200000)
#define SDIO_IT_SDIOIT ((uint32_t)0x00400000)
#define SDIO_IT_CEATAEND ((uint32_t)0x00800000)
#define IS_SDIO_IT(IT) ((((IT) & (uint32_t)0xFF000000) == 0x00) && ((IT) != (uint32_t)0x00))
/**
* @}
*/
/** @defgroup SDIO_Command_Index
* @{
*/
#define IS_SDIO_CMD_INDEX(INDEX) ((INDEX) < 0x40)
/**
* @}
*/
/** @defgroup SDIO_Response_Type
* @{
*/
#define SDIO_Response_No ((uint32_t)0x00000000)
#define SDIO_Response_Short ((uint32_t)0x00000040)
#define SDIO_Response_Long ((uint32_t)0x000000C0)
#define IS_SDIO_RESPONSE(RESPONSE) (((RESPONSE) == SDIO_Response_No) || \
((RESPONSE) == SDIO_Response_Short) || \
((RESPONSE) == SDIO_Response_Long))
/**
* @}
*/
/** @defgroup SDIO_Wait_Interrupt_State
* @{
*/
#define SDIO_Wait_No ((uint32_t)0x00000000) /*!< SDIO No Wait, TimeOut is enabled */
#define SDIO_Wait_IT ((uint32_t)0x00000100) /*!< SDIO Wait Interrupt Request */
#define SDIO_Wait_Pend ((uint32_t)0x00000200) /*!< SDIO Wait End of transfer */
#define IS_SDIO_WAIT(WAIT) (((WAIT) == SDIO_Wait_No) || ((WAIT) == SDIO_Wait_IT) || \
((WAIT) == SDIO_Wait_Pend))
/**
* @}
*/
/** @defgroup SDIO_CPSM_State
* @{
*/
#define SDIO_CPSM_Disable ((uint32_t)0x00000000)
#define SDIO_CPSM_Enable ((uint32_t)0x00000400)
#define IS_SDIO_CPSM(CPSM) (((CPSM) == SDIO_CPSM_Enable) || ((CPSM) == SDIO_CPSM_Disable))
/**
* @}
*/
/** @defgroup SDIO_Response_Registers
* @{
*/
#define SDIO_RESP1 ((uint32_t)0x00000000)
#define SDIO_RESP2 ((uint32_t)0x00000004)
#define SDIO_RESP3 ((uint32_t)0x00000008)
#define SDIO_RESP4 ((uint32_t)0x0000000C)
#define IS_SDIO_RESP(RESP) (((RESP) == SDIO_RESP1) || ((RESP) == SDIO_RESP2) || \
((RESP) == SDIO_RESP3) || ((RESP) == SDIO_RESP4))
/**
* @}
*/
/** @defgroup SDIO_Data_Length
* @{
*/
#define IS_SDIO_DATA_LENGTH(LENGTH) ((LENGTH) <= 0x01FFFFFF)
/**
* @}
*/
/** @defgroup SDIO_Data_Block_Size
* @{
*/
#define SDIO_DataBlockSize_1b ((uint32_t)0x00000000)
#define SDIO_DataBlockSize_2b ((uint32_t)0x00000010)
#define SDIO_DataBlockSize_4b ((uint32_t)0x00000020)
#define SDIO_DataBlockSize_8b ((uint32_t)0x00000030)
#define SDIO_DataBlockSize_16b ((uint32_t)0x00000040)
#define SDIO_DataBlockSize_32b ((uint32_t)0x00000050)
#define SDIO_DataBlockSize_64b ((uint32_t)0x00000060)
#define SDIO_DataBlockSize_128b ((uint32_t)0x00000070)
#define SDIO_DataBlockSize_256b ((uint32_t)0x00000080)
#define SDIO_DataBlockSize_512b ((uint32_t)0x00000090)
#define SDIO_DataBlockSize_1024b ((uint32_t)0x000000A0)
#define SDIO_DataBlockSize_2048b ((uint32_t)0x000000B0)
#define SDIO_DataBlockSize_4096b ((uint32_t)0x000000C0)
#define SDIO_DataBlockSize_8192b ((uint32_t)0x000000D0)
#define SDIO_DataBlockSize_16384b ((uint32_t)0x000000E0)
#define IS_SDIO_BLOCK_SIZE(SIZE) (((SIZE) == SDIO_DataBlockSize_1b) || \
((SIZE) == SDIO_DataBlockSize_2b) || \
((SIZE) == SDIO_DataBlockSize_4b) || \
((SIZE) == SDIO_DataBlockSize_8b) || \
((SIZE) == SDIO_DataBlockSize_16b) || \
((SIZE) == SDIO_DataBlockSize_32b) || \
((SIZE) == SDIO_DataBlockSize_64b) || \
((SIZE) == SDIO_DataBlockSize_128b) || \
((SIZE) == SDIO_DataBlockSize_256b) || \
((SIZE) == SDIO_DataBlockSize_512b) || \
((SIZE) == SDIO_DataBlockSize_1024b) || \
((SIZE) == SDIO_DataBlockSize_2048b) || \
((SIZE) == SDIO_DataBlockSize_4096b) || \
((SIZE) == SDIO_DataBlockSize_8192b) || \
((SIZE) == SDIO_DataBlockSize_16384b))
/**
* @}
*/
/** @defgroup SDIO_Transfer_Direction
* @{
*/
#define SDIO_TransferDir_ToCard ((uint32_t)0x00000000)
#define SDIO_TransferDir_ToSDIO ((uint32_t)0x00000002)
#define IS_SDIO_TRANSFER_DIR(DIR) (((DIR) == SDIO_TransferDir_ToCard) || \
((DIR) == SDIO_TransferDir_ToSDIO))
/**
* @}
*/
/** @defgroup SDIO_Transfer_Type
* @{
*/
#define SDIO_TransferMode_Block ((uint32_t)0x00000000)
#define SDIO_TransferMode_Stream ((uint32_t)0x00000004)
#define IS_SDIO_TRANSFER_MODE(MODE) (((MODE) == SDIO_TransferMode_Stream) || \
((MODE) == SDIO_TransferMode_Block))
/**
* @}
*/
/** @defgroup SDIO_DPSM_State
* @{
*/
#define SDIO_DPSM_Disable ((uint32_t)0x00000000)
#define SDIO_DPSM_Enable ((uint32_t)0x00000001)
#define IS_SDIO_DPSM(DPSM) (((DPSM) == SDIO_DPSM_Enable) || ((DPSM) == SDIO_DPSM_Disable))
/**
* @}
*/
/** @defgroup SDIO_Flags
* @{
*/
#define SDIO_FLAG_CCRCFAIL ((uint32_t)0x00000001)
#define SDIO_FLAG_DCRCFAIL ((uint32_t)0x00000002)
#define SDIO_FLAG_CTIMEOUT ((uint32_t)0x00000004)
#define SDIO_FLAG_DTIMEOUT ((uint32_t)0x00000008)
#define SDIO_FLAG_TXUNDERR ((uint32_t)0x00000010)
#define SDIO_FLAG_RXOVERR ((uint32_t)0x00000020)
#define SDIO_FLAG_CMDREND ((uint32_t)0x00000040)
#define SDIO_FLAG_CMDSENT ((uint32_t)0x00000080)
#define SDIO_FLAG_DATAEND ((uint32_t)0x00000100)
#define SDIO_FLAG_STBITERR ((uint32_t)0x00000200)
#define SDIO_FLAG_DBCKEND ((uint32_t)0x00000400)
#define SDIO_FLAG_CMDACT ((uint32_t)0x00000800)
#define SDIO_FLAG_TXACT ((uint32_t)0x00001000)
#define SDIO_FLAG_RXACT ((uint32_t)0x00002000)
#define SDIO_FLAG_TXFIFOHE ((uint32_t)0x00004000)
#define SDIO_FLAG_RXFIFOHF ((uint32_t)0x00008000)
#define SDIO_FLAG_TXFIFOF ((uint32_t)0x00010000)
#define SDIO_FLAG_RXFIFOF ((uint32_t)0x00020000)
#define SDIO_FLAG_TXFIFOE ((uint32_t)0x00040000)
#define SDIO_FLAG_RXFIFOE ((uint32_t)0x00080000)
#define SDIO_FLAG_TXDAVL ((uint32_t)0x00100000)
#define SDIO_FLAG_RXDAVL ((uint32_t)0x00200000)
#define SDIO_FLAG_SDIOIT ((uint32_t)0x00400000)
#define SDIO_FLAG_CEATAEND ((uint32_t)0x00800000)
#define IS_SDIO_FLAG(FLAG) (((FLAG) == SDIO_FLAG_CCRCFAIL) || \
((FLAG) == SDIO_FLAG_DCRCFAIL) || \
((FLAG) == SDIO_FLAG_CTIMEOUT) || \
((FLAG) == SDIO_FLAG_DTIMEOUT) || \
((FLAG) == SDIO_FLAG_TXUNDERR) || \
((FLAG) == SDIO_FLAG_RXOVERR) || \
((FLAG) == SDIO_FLAG_CMDREND) || \
((FLAG) == SDIO_FLAG_CMDSENT) || \
((FLAG) == SDIO_FLAG_DATAEND) || \
((FLAG) == SDIO_FLAG_STBITERR) || \
((FLAG) == SDIO_FLAG_DBCKEND) || \
((FLAG) == SDIO_FLAG_CMDACT) || \
((FLAG) == SDIO_FLAG_TXACT) || \
((FLAG) == SDIO_FLAG_RXACT) || \
((FLAG) == SDIO_FLAG_TXFIFOHE) || \
((FLAG) == SDIO_FLAG_RXFIFOHF) || \
((FLAG) == SDIO_FLAG_TXFIFOF) || \
((FLAG) == SDIO_FLAG_RXFIFOF) || \
((FLAG) == SDIO_FLAG_TXFIFOE) || \
((FLAG) == SDIO_FLAG_RXFIFOE) || \
((FLAG) == SDIO_FLAG_TXDAVL) || \
((FLAG) == SDIO_FLAG_RXDAVL) || \
((FLAG) == SDIO_FLAG_SDIOIT) || \
((FLAG) == SDIO_FLAG_CEATAEND))
#define IS_SDIO_CLEAR_FLAG(FLAG) ((((FLAG) & (uint32_t)0xFF3FF800) == 0x00) && ((FLAG) != (uint32_t)0x00))
#define IS_SDIO_GET_IT(IT) (((IT) == SDIO_IT_CCRCFAIL) || \
((IT) == SDIO_IT_DCRCFAIL) || \
((IT) == SDIO_IT_CTIMEOUT) || \
((IT) == SDIO_IT_DTIMEOUT) || \
((IT) == SDIO_IT_TXUNDERR) || \
((IT) == SDIO_IT_RXOVERR) || \
((IT) == SDIO_IT_CMDREND) || \
((IT) == SDIO_IT_CMDSENT) || \
((IT) == SDIO_IT_DATAEND) || \
((IT) == SDIO_IT_STBITERR) || \
((IT) == SDIO_IT_DBCKEND) || \
((IT) == SDIO_IT_CMDACT) || \
((IT) == SDIO_IT_TXACT) || \
((IT) == SDIO_IT_RXACT) || \
((IT) == SDIO_IT_TXFIFOHE) || \
((IT) == SDIO_IT_RXFIFOHF) || \
((IT) == SDIO_IT_TXFIFOF) || \
((IT) == SDIO_IT_RXFIFOF) || \
((IT) == SDIO_IT_TXFIFOE) || \
((IT) == SDIO_IT_RXFIFOE) || \
((IT) == SDIO_IT_TXDAVL) || \
((IT) == SDIO_IT_RXDAVL) || \
((IT) == SDIO_IT_SDIOIT) || \
((IT) == SDIO_IT_CEATAEND))
#define IS_SDIO_CLEAR_IT(IT) ((((IT) & (uint32_t)0xFF3FF800) == 0x00) && ((IT) != (uint32_t)0x00))
/**
* @}
*/
/** @defgroup SDIO_Read_Wait_Mode
* @{
*/
#define SDIO_ReadWaitMode_CLK ((uint32_t)0x00000001)
#define SDIO_ReadWaitMode_DATA2 ((uint32_t)0x00000000)
#define IS_SDIO_READWAIT_MODE(MODE) (((MODE) == SDIO_ReadWaitMode_CLK) || \
((MODE) == SDIO_ReadWaitMode_DATA2))
/**
* @}
*/
/**
* @}
*/
/** @defgroup SDIO_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup SDIO_Exported_Functions
* @{
*/
void SDIO_DeInit(void);
void SDIO_Init(SDIO_InitTypeDef* SDIO_InitStruct);
void SDIO_StructInit(SDIO_InitTypeDef* SDIO_InitStruct);
void SDIO_ClockCmd(FunctionalState NewState);
void SDIO_SetPowerState(uint32_t SDIO_PowerState);
uint32_t SDIO_GetPowerState(void);
void SDIO_ITConfig(uint32_t SDIO_IT, FunctionalState NewState);
void SDIO_DMACmd(FunctionalState NewState);
void SDIO_SendCommand(SDIO_CmdInitTypeDef *SDIO_CmdInitStruct);
void SDIO_CmdStructInit(SDIO_CmdInitTypeDef* SDIO_CmdInitStruct);
uint8_t SDIO_GetCommandResponse(void);
uint32_t SDIO_GetResponse(uint32_t SDIO_RESP);
void SDIO_DataConfig(SDIO_DataInitTypeDef* SDIO_DataInitStruct);
void SDIO_DataStructInit(SDIO_DataInitTypeDef* SDIO_DataInitStruct);
uint32_t SDIO_GetDataCounter(void);
uint32_t SDIO_ReadData(void);
void SDIO_WriteData(uint32_t Data);
uint32_t SDIO_GetFIFOCount(void);
void SDIO_StartSDIOReadWait(FunctionalState NewState);
void SDIO_StopSDIOReadWait(FunctionalState NewState);
void SDIO_SetSDIOReadWaitMode(uint32_t SDIO_ReadWaitMode);
void SDIO_SetSDIOOperation(FunctionalState NewState);
void SDIO_SendSDIOSuspendCmd(FunctionalState NewState);
void SDIO_CommandCompletionCmd(FunctionalState NewState);
void SDIO_CEATAITCmd(FunctionalState NewState);
void SDIO_SendCEATACmd(FunctionalState NewState);
FlagStatus SDIO_GetFlagStatus(uint32_t SDIO_FLAG);
void SDIO_ClearFlag(uint32_t SDIO_FLAG);
ITStatus SDIO_GetITStatus(uint32_t SDIO_IT);
void SDIO_ClearITPendingBit(uint32_t SDIO_IT);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F10x_SDIO_H */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/

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3-5 GPIO_光敏传感器/Library/stm32f10x_spi.c Normal file
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@@ -0,0 +1,908 @@
/**
******************************************************************************
* @file stm32f10x_spi.c
* @author MCD Application Team
* @version V3.5.0
* @date 11-March-2011
* @brief This file provides all the SPI firmware functions.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_spi.h"
#include "stm32f10x_rcc.h"
/** @addtogroup STM32F10x_StdPeriph_Driver
* @{
*/
/** @defgroup SPI
* @brief SPI driver modules
* @{
*/
/** @defgroup SPI_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup SPI_Private_Defines
* @{
*/
/* SPI SPE mask */
#define CR1_SPE_Set ((uint16_t)0x0040)
#define CR1_SPE_Reset ((uint16_t)0xFFBF)
/* I2S I2SE mask */
#define I2SCFGR_I2SE_Set ((uint16_t)0x0400)
#define I2SCFGR_I2SE_Reset ((uint16_t)0xFBFF)
/* SPI CRCNext mask */
#define CR1_CRCNext_Set ((uint16_t)0x1000)
/* SPI CRCEN mask */
#define CR1_CRCEN_Set ((uint16_t)0x2000)
#define CR1_CRCEN_Reset ((uint16_t)0xDFFF)
/* SPI SSOE mask */
#define CR2_SSOE_Set ((uint16_t)0x0004)
#define CR2_SSOE_Reset ((uint16_t)0xFFFB)
/* SPI registers Masks */
#define CR1_CLEAR_Mask ((uint16_t)0x3040)
#define I2SCFGR_CLEAR_Mask ((uint16_t)0xF040)
/* SPI or I2S mode selection masks */
#define SPI_Mode_Select ((uint16_t)0xF7FF)
#define I2S_Mode_Select ((uint16_t)0x0800)
/* I2S clock source selection masks */
#define I2S2_CLOCK_SRC ((uint32_t)(0x00020000))
#define I2S3_CLOCK_SRC ((uint32_t)(0x00040000))
#define I2S_MUL_MASK ((uint32_t)(0x0000F000))
#define I2S_DIV_MASK ((uint32_t)(0x000000F0))
/**
* @}
*/
/** @defgroup SPI_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup SPI_Private_Variables
* @{
*/
/**
* @}
*/
/** @defgroup SPI_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup SPI_Private_Functions
* @{
*/
/**
* @brief Deinitializes the SPIx peripheral registers to their default
* reset values (Affects also the I2Ss).
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @retval None
*/
void SPI_I2S_DeInit(SPI_TypeDef* SPIx)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
if (SPIx == SPI1)
{
/* Enable SPI1 reset state */
RCC_APB2PeriphResetCmd(RCC_APB2Periph_SPI1, ENABLE);
/* Release SPI1 from reset state */
RCC_APB2PeriphResetCmd(RCC_APB2Periph_SPI1, DISABLE);
}
else if (SPIx == SPI2)
{
/* Enable SPI2 reset state */
RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2, ENABLE);
/* Release SPI2 from reset state */
RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2, DISABLE);
}
else
{
if (SPIx == SPI3)
{
/* Enable SPI3 reset state */
RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI3, ENABLE);
/* Release SPI3 from reset state */
RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI3, DISABLE);
}
}
}
/**
* @brief Initializes the SPIx peripheral according to the specified
* parameters in the SPI_InitStruct.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param SPI_InitStruct: pointer to a SPI_InitTypeDef structure that
* contains the configuration information for the specified SPI peripheral.
* @retval None
*/
void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct)
{
uint16_t tmpreg = 0;
/* check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
/* Check the SPI parameters */
assert_param(IS_SPI_DIRECTION_MODE(SPI_InitStruct->SPI_Direction));
assert_param(IS_SPI_MODE(SPI_InitStruct->SPI_Mode));
assert_param(IS_SPI_DATASIZE(SPI_InitStruct->SPI_DataSize));
assert_param(IS_SPI_CPOL(SPI_InitStruct->SPI_CPOL));
assert_param(IS_SPI_CPHA(SPI_InitStruct->SPI_CPHA));
assert_param(IS_SPI_NSS(SPI_InitStruct->SPI_NSS));
assert_param(IS_SPI_BAUDRATE_PRESCALER(SPI_InitStruct->SPI_BaudRatePrescaler));
assert_param(IS_SPI_FIRST_BIT(SPI_InitStruct->SPI_FirstBit));
assert_param(IS_SPI_CRC_POLYNOMIAL(SPI_InitStruct->SPI_CRCPolynomial));
/*---------------------------- SPIx CR1 Configuration ------------------------*/
/* Get the SPIx CR1 value */
tmpreg = SPIx->CR1;
/* Clear BIDIMode, BIDIOE, RxONLY, SSM, SSI, LSBFirst, BR, MSTR, CPOL and CPHA bits */
tmpreg &= CR1_CLEAR_Mask;
/* Configure SPIx: direction, NSS management, first transmitted bit, BaudRate prescaler
master/salve mode, CPOL and CPHA */
/* Set BIDImode, BIDIOE and RxONLY bits according to SPI_Direction value */
/* Set SSM, SSI and MSTR bits according to SPI_Mode and SPI_NSS values */
/* Set LSBFirst bit according to SPI_FirstBit value */
/* Set BR bits according to SPI_BaudRatePrescaler value */
/* Set CPOL bit according to SPI_CPOL value */
/* Set CPHA bit according to SPI_CPHA value */
tmpreg |= (uint16_t)((uint32_t)SPI_InitStruct->SPI_Direction | SPI_InitStruct->SPI_Mode |
SPI_InitStruct->SPI_DataSize | SPI_InitStruct->SPI_CPOL |
SPI_InitStruct->SPI_CPHA | SPI_InitStruct->SPI_NSS |
SPI_InitStruct->SPI_BaudRatePrescaler | SPI_InitStruct->SPI_FirstBit);
/* Write to SPIx CR1 */
SPIx->CR1 = tmpreg;
/* Activate the SPI mode (Reset I2SMOD bit in I2SCFGR register) */
SPIx->I2SCFGR &= SPI_Mode_Select;
/*---------------------------- SPIx CRCPOLY Configuration --------------------*/
/* Write to SPIx CRCPOLY */
SPIx->CRCPR = SPI_InitStruct->SPI_CRCPolynomial;
}
/**
* @brief Initializes the SPIx peripheral according to the specified
* parameters in the I2S_InitStruct.
* @param SPIx: where x can be 2 or 3 to select the SPI peripheral
* (configured in I2S mode).
* @param I2S_InitStruct: pointer to an I2S_InitTypeDef structure that
* contains the configuration information for the specified SPI peripheral
* configured in I2S mode.
* @note
* The function calculates the optimal prescaler needed to obtain the most
* accurate audio frequency (depending on the I2S clock source, the PLL values
* and the product configuration). But in case the prescaler value is greater
* than 511, the default value (0x02) will be configured instead. *
* @retval None
*/
void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct)
{
uint16_t tmpreg = 0, i2sdiv = 2, i2sodd = 0, packetlength = 1;
uint32_t tmp = 0;
RCC_ClocksTypeDef RCC_Clocks;
uint32_t sourceclock = 0;
/* Check the I2S parameters */
assert_param(IS_SPI_23_PERIPH(SPIx));
assert_param(IS_I2S_MODE(I2S_InitStruct->I2S_Mode));
assert_param(IS_I2S_STANDARD(I2S_InitStruct->I2S_Standard));
assert_param(IS_I2S_DATA_FORMAT(I2S_InitStruct->I2S_DataFormat));
assert_param(IS_I2S_MCLK_OUTPUT(I2S_InitStruct->I2S_MCLKOutput));
assert_param(IS_I2S_AUDIO_FREQ(I2S_InitStruct->I2S_AudioFreq));
assert_param(IS_I2S_CPOL(I2S_InitStruct->I2S_CPOL));
/*----------------------- SPIx I2SCFGR & I2SPR Configuration -----------------*/
/* Clear I2SMOD, I2SE, I2SCFG, PCMSYNC, I2SSTD, CKPOL, DATLEN and CHLEN bits */
SPIx->I2SCFGR &= I2SCFGR_CLEAR_Mask;
SPIx->I2SPR = 0x0002;
/* Get the I2SCFGR register value */
tmpreg = SPIx->I2SCFGR;
/* If the default value has to be written, reinitialize i2sdiv and i2sodd*/
if(I2S_InitStruct->I2S_AudioFreq == I2S_AudioFreq_Default)
{
i2sodd = (uint16_t)0;
i2sdiv = (uint16_t)2;
}
/* If the requested audio frequency is not the default, compute the prescaler */
else
{
/* Check the frame length (For the Prescaler computing) */
if(I2S_InitStruct->I2S_DataFormat == I2S_DataFormat_16b)
{
/* Packet length is 16 bits */
packetlength = 1;
}
else
{
/* Packet length is 32 bits */
packetlength = 2;
}
/* Get the I2S clock source mask depending on the peripheral number */
if(((uint32_t)SPIx) == SPI2_BASE)
{
/* The mask is relative to I2S2 */
tmp = I2S2_CLOCK_SRC;
}
else
{
/* The mask is relative to I2S3 */
tmp = I2S3_CLOCK_SRC;
}
/* Check the I2S clock source configuration depending on the Device:
Only Connectivity line devices have the PLL3 VCO clock */
#ifdef STM32F10X_CL
if((RCC->CFGR2 & tmp) != 0)
{
/* Get the configuration bits of RCC PLL3 multiplier */
tmp = (uint32_t)((RCC->CFGR2 & I2S_MUL_MASK) >> 12);
/* Get the value of the PLL3 multiplier */
if((tmp > 5) && (tmp < 15))
{
/* Multiplier is between 8 and 14 (value 15 is forbidden) */
tmp += 2;
}
else
{
if (tmp == 15)
{
/* Multiplier is 20 */
tmp = 20;
}
}
/* Get the PREDIV2 value */
sourceclock = (uint32_t)(((RCC->CFGR2 & I2S_DIV_MASK) >> 4) + 1);
/* Calculate the Source Clock frequency based on PLL3 and PREDIV2 values */
sourceclock = (uint32_t) ((HSE_Value / sourceclock) * tmp * 2);
}
else
{
/* I2S Clock source is System clock: Get System Clock frequency */
RCC_GetClocksFreq(&RCC_Clocks);
/* Get the source clock value: based on System Clock value */
sourceclock = RCC_Clocks.SYSCLK_Frequency;
}
#else /* STM32F10X_HD */
/* I2S Clock source is System clock: Get System Clock frequency */
RCC_GetClocksFreq(&RCC_Clocks);
/* Get the source clock value: based on System Clock value */
sourceclock = RCC_Clocks.SYSCLK_Frequency;
#endif /* STM32F10X_CL */
/* Compute the Real divider depending on the MCLK output state with a floating point */
if(I2S_InitStruct->I2S_MCLKOutput == I2S_MCLKOutput_Enable)
{
/* MCLK output is enabled */
tmp = (uint16_t)(((((sourceclock / 256) * 10) / I2S_InitStruct->I2S_AudioFreq)) + 5);
}
else
{
/* MCLK output is disabled */
tmp = (uint16_t)(((((sourceclock / (32 * packetlength)) *10 ) / I2S_InitStruct->I2S_AudioFreq)) + 5);
}
/* Remove the floating point */
tmp = tmp / 10;
/* Check the parity of the divider */
i2sodd = (uint16_t)(tmp & (uint16_t)0x0001);
/* Compute the i2sdiv prescaler */
i2sdiv = (uint16_t)((tmp - i2sodd) / 2);
/* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */
i2sodd = (uint16_t) (i2sodd << 8);
}
/* Test if the divider is 1 or 0 or greater than 0xFF */
if ((i2sdiv < 2) || (i2sdiv > 0xFF))
{
/* Set the default values */
i2sdiv = 2;
i2sodd = 0;
}
/* Write to SPIx I2SPR register the computed value */
SPIx->I2SPR = (uint16_t)(i2sdiv | (uint16_t)(i2sodd | (uint16_t)I2S_InitStruct->I2S_MCLKOutput));
/* Configure the I2S with the SPI_InitStruct values */
tmpreg |= (uint16_t)(I2S_Mode_Select | (uint16_t)(I2S_InitStruct->I2S_Mode | \
(uint16_t)(I2S_InitStruct->I2S_Standard | (uint16_t)(I2S_InitStruct->I2S_DataFormat | \
(uint16_t)I2S_InitStruct->I2S_CPOL))));
/* Write to SPIx I2SCFGR */
SPIx->I2SCFGR = tmpreg;
}
/**
* @brief Fills each SPI_InitStruct member with its default value.
* @param SPI_InitStruct : pointer to a SPI_InitTypeDef structure which will be initialized.
* @retval None
*/
void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct)
{
/*--------------- Reset SPI init structure parameters values -----------------*/
/* Initialize the SPI_Direction member */
SPI_InitStruct->SPI_Direction = SPI_Direction_2Lines_FullDuplex;
/* initialize the SPI_Mode member */
SPI_InitStruct->SPI_Mode = SPI_Mode_Slave;
/* initialize the SPI_DataSize member */
SPI_InitStruct->SPI_DataSize = SPI_DataSize_8b;
/* Initialize the SPI_CPOL member */
SPI_InitStruct->SPI_CPOL = SPI_CPOL_Low;
/* Initialize the SPI_CPHA member */
SPI_InitStruct->SPI_CPHA = SPI_CPHA_1Edge;
/* Initialize the SPI_NSS member */
SPI_InitStruct->SPI_NSS = SPI_NSS_Hard;
/* Initialize the SPI_BaudRatePrescaler member */
SPI_InitStruct->SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
/* Initialize the SPI_FirstBit member */
SPI_InitStruct->SPI_FirstBit = SPI_FirstBit_MSB;
/* Initialize the SPI_CRCPolynomial member */
SPI_InitStruct->SPI_CRCPolynomial = 7;
}
/**
* @brief Fills each I2S_InitStruct member with its default value.
* @param I2S_InitStruct : pointer to a I2S_InitTypeDef structure which will be initialized.
* @retval None
*/
void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct)
{
/*--------------- Reset I2S init structure parameters values -----------------*/
/* Initialize the I2S_Mode member */
I2S_InitStruct->I2S_Mode = I2S_Mode_SlaveTx;
/* Initialize the I2S_Standard member */
I2S_InitStruct->I2S_Standard = I2S_Standard_Phillips;
/* Initialize the I2S_DataFormat member */
I2S_InitStruct->I2S_DataFormat = I2S_DataFormat_16b;
/* Initialize the I2S_MCLKOutput member */
I2S_InitStruct->I2S_MCLKOutput = I2S_MCLKOutput_Disable;
/* Initialize the I2S_AudioFreq member */
I2S_InitStruct->I2S_AudioFreq = I2S_AudioFreq_Default;
/* Initialize the I2S_CPOL member */
I2S_InitStruct->I2S_CPOL = I2S_CPOL_Low;
}
/**
* @brief Enables or disables the specified SPI peripheral.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param NewState: new state of the SPIx peripheral.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected SPI peripheral */
SPIx->CR1 |= CR1_SPE_Set;
}
else
{
/* Disable the selected SPI peripheral */
SPIx->CR1 &= CR1_SPE_Reset;
}
}
/**
* @brief Enables or disables the specified SPI peripheral (in I2S mode).
* @param SPIx: where x can be 2 or 3 to select the SPI peripheral.
* @param NewState: new state of the SPIx peripheral.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SPI_23_PERIPH(SPIx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected SPI peripheral (in I2S mode) */
SPIx->I2SCFGR |= I2SCFGR_I2SE_Set;
}
else
{
/* Disable the selected SPI peripheral (in I2S mode) */
SPIx->I2SCFGR &= I2SCFGR_I2SE_Reset;
}
}
/**
* @brief Enables or disables the specified SPI/I2S interrupts.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* - 2 or 3 in I2S mode
* @param SPI_I2S_IT: specifies the SPI/I2S interrupt source to be enabled or disabled.
* This parameter can be one of the following values:
* @arg SPI_I2S_IT_TXE: Tx buffer empty interrupt mask
* @arg SPI_I2S_IT_RXNE: Rx buffer not empty interrupt mask
* @arg SPI_I2S_IT_ERR: Error interrupt mask
* @param NewState: new state of the specified SPI/I2S interrupt.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState)
{
uint16_t itpos = 0, itmask = 0 ;
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
assert_param(IS_SPI_I2S_CONFIG_IT(SPI_I2S_IT));
/* Get the SPI/I2S IT index */
itpos = SPI_I2S_IT >> 4;
/* Set the IT mask */
itmask = (uint16_t)1 << (uint16_t)itpos;
if (NewState != DISABLE)
{
/* Enable the selected SPI/I2S interrupt */
SPIx->CR2 |= itmask;
}
else
{
/* Disable the selected SPI/I2S interrupt */
SPIx->CR2 &= (uint16_t)~itmask;
}
}
/**
* @brief Enables or disables the SPIx/I2Sx DMA interface.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* - 2 or 3 in I2S mode
* @param SPI_I2S_DMAReq: specifies the SPI/I2S DMA transfer request to be enabled or disabled.
* This parameter can be any combination of the following values:
* @arg SPI_I2S_DMAReq_Tx: Tx buffer DMA transfer request
* @arg SPI_I2S_DMAReq_Rx: Rx buffer DMA transfer request
* @param NewState: new state of the selected SPI/I2S DMA transfer request.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
assert_param(IS_SPI_I2S_DMAREQ(SPI_I2S_DMAReq));
if (NewState != DISABLE)
{
/* Enable the selected SPI/I2S DMA requests */
SPIx->CR2 |= SPI_I2S_DMAReq;
}
else
{
/* Disable the selected SPI/I2S DMA requests */
SPIx->CR2 &= (uint16_t)~SPI_I2S_DMAReq;
}
}
/**
* @brief Transmits a Data through the SPIx/I2Sx peripheral.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* - 2 or 3 in I2S mode
* @param Data : Data to be transmitted.
* @retval None
*/
void SPI_I2S_SendData(SPI_TypeDef* SPIx, uint16_t Data)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
/* Write in the DR register the data to be sent */
SPIx->DR = Data;
}
/**
* @brief Returns the most recent received data by the SPIx/I2Sx peripheral.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* - 2 or 3 in I2S mode
* @retval The value of the received data.
*/
uint16_t SPI_I2S_ReceiveData(SPI_TypeDef* SPIx)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
/* Return the data in the DR register */
return SPIx->DR;
}
/**
* @brief Configures internally by software the NSS pin for the selected SPI.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param SPI_NSSInternalSoft: specifies the SPI NSS internal state.
* This parameter can be one of the following values:
* @arg SPI_NSSInternalSoft_Set: Set NSS pin internally
* @arg SPI_NSSInternalSoft_Reset: Reset NSS pin internally
* @retval None
*/
void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_NSS_INTERNAL(SPI_NSSInternalSoft));
if (SPI_NSSInternalSoft != SPI_NSSInternalSoft_Reset)
{
/* Set NSS pin internally by software */
SPIx->CR1 |= SPI_NSSInternalSoft_Set;
}
else
{
/* Reset NSS pin internally by software */
SPIx->CR1 &= SPI_NSSInternalSoft_Reset;
}
}
/**
* @brief Enables or disables the SS output for the selected SPI.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param NewState: new state of the SPIx SS output.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected SPI SS output */
SPIx->CR2 |= CR2_SSOE_Set;
}
else
{
/* Disable the selected SPI SS output */
SPIx->CR2 &= CR2_SSOE_Reset;
}
}
/**
* @brief Configures the data size for the selected SPI.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param SPI_DataSize: specifies the SPI data size.
* This parameter can be one of the following values:
* @arg SPI_DataSize_16b: Set data frame format to 16bit
* @arg SPI_DataSize_8b: Set data frame format to 8bit
* @retval None
*/
void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_DATASIZE(SPI_DataSize));
/* Clear DFF bit */
SPIx->CR1 &= (uint16_t)~SPI_DataSize_16b;
/* Set new DFF bit value */
SPIx->CR1 |= SPI_DataSize;
}
/**
* @brief Transmit the SPIx CRC value.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @retval None
*/
void SPI_TransmitCRC(SPI_TypeDef* SPIx)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
/* Enable the selected SPI CRC transmission */
SPIx->CR1 |= CR1_CRCNext_Set;
}
/**
* @brief Enables or disables the CRC value calculation of the transferred bytes.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param NewState: new state of the SPIx CRC value calculation.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SPI_CalculateCRC(SPI_TypeDef* SPIx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected SPI CRC calculation */
SPIx->CR1 |= CR1_CRCEN_Set;
}
else
{
/* Disable the selected SPI CRC calculation */
SPIx->CR1 &= CR1_CRCEN_Reset;
}
}
/**
* @brief Returns the transmit or the receive CRC register value for the specified SPI.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param SPI_CRC: specifies the CRC register to be read.
* This parameter can be one of the following values:
* @arg SPI_CRC_Tx: Selects Tx CRC register
* @arg SPI_CRC_Rx: Selects Rx CRC register
* @retval The selected CRC register value..
*/
uint16_t SPI_GetCRC(SPI_TypeDef* SPIx, uint8_t SPI_CRC)
{
uint16_t crcreg = 0;
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_CRC(SPI_CRC));
if (SPI_CRC != SPI_CRC_Rx)
{
/* Get the Tx CRC register */
crcreg = SPIx->TXCRCR;
}
else
{
/* Get the Rx CRC register */
crcreg = SPIx->RXCRCR;
}
/* Return the selected CRC register */
return crcreg;
}
/**
* @brief Returns the CRC Polynomial register value for the specified SPI.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @retval The CRC Polynomial register value.
*/
uint16_t SPI_GetCRCPolynomial(SPI_TypeDef* SPIx)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
/* Return the CRC polynomial register */
return SPIx->CRCPR;
}
/**
* @brief Selects the data transfer direction in bi-directional mode for the specified SPI.
* @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral.
* @param SPI_Direction: specifies the data transfer direction in bi-directional mode.
* This parameter can be one of the following values:
* @arg SPI_Direction_Tx: Selects Tx transmission direction
* @arg SPI_Direction_Rx: Selects Rx receive direction
* @retval None
*/
void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_DIRECTION(SPI_Direction));
if (SPI_Direction == SPI_Direction_Tx)
{
/* Set the Tx only mode */
SPIx->CR1 |= SPI_Direction_Tx;
}
else
{
/* Set the Rx only mode */
SPIx->CR1 &= SPI_Direction_Rx;
}
}
/**
* @brief Checks whether the specified SPI/I2S flag is set or not.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* - 2 or 3 in I2S mode
* @param SPI_I2S_FLAG: specifies the SPI/I2S flag to check.
* This parameter can be one of the following values:
* @arg SPI_I2S_FLAG_TXE: Transmit buffer empty flag.
* @arg SPI_I2S_FLAG_RXNE: Receive buffer not empty flag.
* @arg SPI_I2S_FLAG_BSY: Busy flag.
* @arg SPI_I2S_FLAG_OVR: Overrun flag.
* @arg SPI_FLAG_MODF: Mode Fault flag.
* @arg SPI_FLAG_CRCERR: CRC Error flag.
* @arg I2S_FLAG_UDR: Underrun Error flag.
* @arg I2S_FLAG_CHSIDE: Channel Side flag.
* @retval The new state of SPI_I2S_FLAG (SET or RESET).
*/
FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_I2S_GET_FLAG(SPI_I2S_FLAG));
/* Check the status of the specified SPI/I2S flag */
if ((SPIx->SR & SPI_I2S_FLAG) != (uint16_t)RESET)
{
/* SPI_I2S_FLAG is set */
bitstatus = SET;
}
else
{
/* SPI_I2S_FLAG is reset */
bitstatus = RESET;
}
/* Return the SPI_I2S_FLAG status */
return bitstatus;
}
/**
* @brief Clears the SPIx CRC Error (CRCERR) flag.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* @param SPI_I2S_FLAG: specifies the SPI flag to clear.
* This function clears only CRCERR flag.
* @note
* - OVR (OverRun error) flag is cleared by software sequence: a read
* operation to SPI_DR register (SPI_I2S_ReceiveData()) followed by a read
* operation to SPI_SR register (SPI_I2S_GetFlagStatus()).
* - UDR (UnderRun error) flag is cleared by a read operation to
* SPI_SR register (SPI_I2S_GetFlagStatus()).
* - MODF (Mode Fault) flag is cleared by software sequence: a read/write
* operation to SPI_SR register (SPI_I2S_GetFlagStatus()) followed by a
* write operation to SPI_CR1 register (SPI_Cmd() to enable the SPI).
* @retval None
*/
void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG)
{
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_I2S_CLEAR_FLAG(SPI_I2S_FLAG));
/* Clear the selected SPI CRC Error (CRCERR) flag */
SPIx->SR = (uint16_t)~SPI_I2S_FLAG;
}
/**
* @brief Checks whether the specified SPI/I2S interrupt has occurred or not.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* - 2 or 3 in I2S mode
* @param SPI_I2S_IT: specifies the SPI/I2S interrupt source to check.
* This parameter can be one of the following values:
* @arg SPI_I2S_IT_TXE: Transmit buffer empty interrupt.
* @arg SPI_I2S_IT_RXNE: Receive buffer not empty interrupt.
* @arg SPI_I2S_IT_OVR: Overrun interrupt.
* @arg SPI_IT_MODF: Mode Fault interrupt.
* @arg SPI_IT_CRCERR: CRC Error interrupt.
* @arg I2S_IT_UDR: Underrun Error interrupt.
* @retval The new state of SPI_I2S_IT (SET or RESET).
*/
ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT)
{
ITStatus bitstatus = RESET;
uint16_t itpos = 0, itmask = 0, enablestatus = 0;
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_I2S_GET_IT(SPI_I2S_IT));
/* Get the SPI/I2S IT index */
itpos = 0x01 << (SPI_I2S_IT & 0x0F);
/* Get the SPI/I2S IT mask */
itmask = SPI_I2S_IT >> 4;
/* Set the IT mask */
itmask = 0x01 << itmask;
/* Get the SPI_I2S_IT enable bit status */
enablestatus = (SPIx->CR2 & itmask) ;
/* Check the status of the specified SPI/I2S interrupt */
if (((SPIx->SR & itpos) != (uint16_t)RESET) && enablestatus)
{
/* SPI_I2S_IT is set */
bitstatus = SET;
}
else
{
/* SPI_I2S_IT is reset */
bitstatus = RESET;
}
/* Return the SPI_I2S_IT status */
return bitstatus;
}
/**
* @brief Clears the SPIx CRC Error (CRCERR) interrupt pending bit.
* @param SPIx: where x can be
* - 1, 2 or 3 in SPI mode
* @param SPI_I2S_IT: specifies the SPI interrupt pending bit to clear.
* This function clears only CRCERR interrupt pending bit.
* @note
* - OVR (OverRun Error) interrupt pending bit is cleared by software
* sequence: a read operation to SPI_DR register (SPI_I2S_ReceiveData())
* followed by a read operation to SPI_SR register (SPI_I2S_GetITStatus()).
* - UDR (UnderRun Error) interrupt pending bit is cleared by a read
* operation to SPI_SR register (SPI_I2S_GetITStatus()).
* - MODF (Mode Fault) interrupt pending bit is cleared by software sequence:
* a read/write operation to SPI_SR register (SPI_I2S_GetITStatus())
* followed by a write operation to SPI_CR1 register (SPI_Cmd() to enable
* the SPI).
* @retval None
*/
void SPI_I2S_ClearITPendingBit(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT)
{
uint16_t itpos = 0;
/* Check the parameters */
assert_param(IS_SPI_ALL_PERIPH(SPIx));
assert_param(IS_SPI_I2S_CLEAR_IT(SPI_I2S_IT));
/* Get the SPI IT index */
itpos = 0x01 << (SPI_I2S_IT & 0x0F);
/* Clear the selected SPI CRC Error (CRCERR) interrupt pending bit */
SPIx->SR = (uint16_t)~itpos;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f10x_spi.h
* @author MCD Application Team
* @version V3.5.0
* @date 11-March-2011
* @brief This file contains all the functions prototypes for the SPI firmware
* library.
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F10x_SPI_H
#define __STM32F10x_SPI_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
/** @addtogroup STM32F10x_StdPeriph_Driver
* @{
*/
/** @addtogroup SPI
* @{
*/
/** @defgroup SPI_Exported_Types
* @{
*/
/**
* @brief SPI Init structure definition
*/
typedef struct
{
uint16_t SPI_Direction; /*!< Specifies the SPI unidirectional or bidirectional data mode.
This parameter can be a value of @ref SPI_data_direction */
uint16_t SPI_Mode; /*!< Specifies the SPI operating mode.
This parameter can be a value of @ref SPI_mode */
uint16_t SPI_DataSize; /*!< Specifies the SPI data size.
This parameter can be a value of @ref SPI_data_size */
uint16_t SPI_CPOL; /*!< Specifies the serial clock steady state.
This parameter can be a value of @ref SPI_Clock_Polarity */
uint16_t SPI_CPHA; /*!< Specifies the clock active edge for the bit capture.
This parameter can be a value of @ref SPI_Clock_Phase */
uint16_t SPI_NSS; /*!< Specifies whether the NSS signal is managed by
hardware (NSS pin) or by software using the SSI bit.
This parameter can be a value of @ref SPI_Slave_Select_management */
uint16_t SPI_BaudRatePrescaler; /*!< Specifies the Baud Rate prescaler value which will be
used to configure the transmit and receive SCK clock.
This parameter can be a value of @ref SPI_BaudRate_Prescaler.
@note The communication clock is derived from the master
clock. The slave clock does not need to be set. */
uint16_t SPI_FirstBit; /*!< Specifies whether data transfers start from MSB or LSB bit.
This parameter can be a value of @ref SPI_MSB_LSB_transmission */
uint16_t SPI_CRCPolynomial; /*!< Specifies the polynomial used for the CRC calculation. */
}SPI_InitTypeDef;
/**
* @brief I2S Init structure definition
*/
typedef struct
{
uint16_t I2S_Mode; /*!< Specifies the I2S operating mode.
This parameter can be a value of @ref I2S_Mode */
uint16_t I2S_Standard; /*!< Specifies the standard used for the I2S communication.
This parameter can be a value of @ref I2S_Standard */
uint16_t I2S_DataFormat; /*!< Specifies the data format for the I2S communication.
This parameter can be a value of @ref I2S_Data_Format */
uint16_t I2S_MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not.
This parameter can be a value of @ref I2S_MCLK_Output */
uint32_t I2S_AudioFreq; /*!< Specifies the frequency selected for the I2S communication.
This parameter can be a value of @ref I2S_Audio_Frequency */
uint16_t I2S_CPOL; /*!< Specifies the idle state of the I2S clock.
This parameter can be a value of @ref I2S_Clock_Polarity */
}I2S_InitTypeDef;
/**
* @}
*/
/** @defgroup SPI_Exported_Constants
* @{
*/
#define IS_SPI_ALL_PERIPH(PERIPH) (((PERIPH) == SPI1) || \
((PERIPH) == SPI2) || \
((PERIPH) == SPI3))
#define IS_SPI_23_PERIPH(PERIPH) (((PERIPH) == SPI2) || \
((PERIPH) == SPI3))
/** @defgroup SPI_data_direction
* @{
*/
#define SPI_Direction_2Lines_FullDuplex ((uint16_t)0x0000)
#define SPI_Direction_2Lines_RxOnly ((uint16_t)0x0400)
#define SPI_Direction_1Line_Rx ((uint16_t)0x8000)
#define SPI_Direction_1Line_Tx ((uint16_t)0xC000)
#define IS_SPI_DIRECTION_MODE(MODE) (((MODE) == SPI_Direction_2Lines_FullDuplex) || \
((MODE) == SPI_Direction_2Lines_RxOnly) || \
((MODE) == SPI_Direction_1Line_Rx) || \
((MODE) == SPI_Direction_1Line_Tx))
/**
* @}
*/
/** @defgroup SPI_mode
* @{
*/
#define SPI_Mode_Master ((uint16_t)0x0104)
#define SPI_Mode_Slave ((uint16_t)0x0000)
#define IS_SPI_MODE(MODE) (((MODE) == SPI_Mode_Master) || \
((MODE) == SPI_Mode_Slave))
/**
* @}
*/
/** @defgroup SPI_data_size
* @{
*/
#define SPI_DataSize_16b ((uint16_t)0x0800)
#define SPI_DataSize_8b ((uint16_t)0x0000)
#define IS_SPI_DATASIZE(DATASIZE) (((DATASIZE) == SPI_DataSize_16b) || \
((DATASIZE) == SPI_DataSize_8b))
/**
* @}
*/
/** @defgroup SPI_Clock_Polarity
* @{
*/
#define SPI_CPOL_Low ((uint16_t)0x0000)
#define SPI_CPOL_High ((uint16_t)0x0002)
#define IS_SPI_CPOL(CPOL) (((CPOL) == SPI_CPOL_Low) || \
((CPOL) == SPI_CPOL_High))
/**
* @}
*/
/** @defgroup SPI_Clock_Phase
* @{
*/
#define SPI_CPHA_1Edge ((uint16_t)0x0000)
#define SPI_CPHA_2Edge ((uint16_t)0x0001)
#define IS_SPI_CPHA(CPHA) (((CPHA) == SPI_CPHA_1Edge) || \
((CPHA) == SPI_CPHA_2Edge))
/**
* @}
*/
/** @defgroup SPI_Slave_Select_management
* @{
*/
#define SPI_NSS_Soft ((uint16_t)0x0200)
#define SPI_NSS_Hard ((uint16_t)0x0000)
#define IS_SPI_NSS(NSS) (((NSS) == SPI_NSS_Soft) || \
((NSS) == SPI_NSS_Hard))
/**
* @}
*/
/** @defgroup SPI_BaudRate_Prescaler
* @{
*/
#define SPI_BaudRatePrescaler_2 ((uint16_t)0x0000)
#define SPI_BaudRatePrescaler_4 ((uint16_t)0x0008)
#define SPI_BaudRatePrescaler_8 ((uint16_t)0x0010)
#define SPI_BaudRatePrescaler_16 ((uint16_t)0x0018)
#define SPI_BaudRatePrescaler_32 ((uint16_t)0x0020)
#define SPI_BaudRatePrescaler_64 ((uint16_t)0x0028)
#define SPI_BaudRatePrescaler_128 ((uint16_t)0x0030)
#define SPI_BaudRatePrescaler_256 ((uint16_t)0x0038)
#define IS_SPI_BAUDRATE_PRESCALER(PRESCALER) (((PRESCALER) == SPI_BaudRatePrescaler_2) || \
((PRESCALER) == SPI_BaudRatePrescaler_4) || \
((PRESCALER) == SPI_BaudRatePrescaler_8) || \
((PRESCALER) == SPI_BaudRatePrescaler_16) || \
((PRESCALER) == SPI_BaudRatePrescaler_32) || \
((PRESCALER) == SPI_BaudRatePrescaler_64) || \
((PRESCALER) == SPI_BaudRatePrescaler_128) || \
((PRESCALER) == SPI_BaudRatePrescaler_256))
/**
* @}
*/
/** @defgroup SPI_MSB_LSB_transmission
* @{
*/
#define SPI_FirstBit_MSB ((uint16_t)0x0000)
#define SPI_FirstBit_LSB ((uint16_t)0x0080)
#define IS_SPI_FIRST_BIT(BIT) (((BIT) == SPI_FirstBit_MSB) || \
((BIT) == SPI_FirstBit_LSB))
/**
* @}
*/
/** @defgroup I2S_Mode
* @{
*/
#define I2S_Mode_SlaveTx ((uint16_t)0x0000)
#define I2S_Mode_SlaveRx ((uint16_t)0x0100)
#define I2S_Mode_MasterTx ((uint16_t)0x0200)
#define I2S_Mode_MasterRx ((uint16_t)0x0300)
#define IS_I2S_MODE(MODE) (((MODE) == I2S_Mode_SlaveTx) || \
((MODE) == I2S_Mode_SlaveRx) || \
((MODE) == I2S_Mode_MasterTx) || \
((MODE) == I2S_Mode_MasterRx) )
/**
* @}
*/
/** @defgroup I2S_Standard
* @{
*/
#define I2S_Standard_Phillips ((uint16_t)0x0000)
#define I2S_Standard_MSB ((uint16_t)0x0010)
#define I2S_Standard_LSB ((uint16_t)0x0020)
#define I2S_Standard_PCMShort ((uint16_t)0x0030)
#define I2S_Standard_PCMLong ((uint16_t)0x00B0)
#define IS_I2S_STANDARD(STANDARD) (((STANDARD) == I2S_Standard_Phillips) || \
((STANDARD) == I2S_Standard_MSB) || \
((STANDARD) == I2S_Standard_LSB) || \
((STANDARD) == I2S_Standard_PCMShort) || \
((STANDARD) == I2S_Standard_PCMLong))
/**
* @}
*/
/** @defgroup I2S_Data_Format
* @{
*/
#define I2S_DataFormat_16b ((uint16_t)0x0000)
#define I2S_DataFormat_16bextended ((uint16_t)0x0001)
#define I2S_DataFormat_24b ((uint16_t)0x0003)
#define I2S_DataFormat_32b ((uint16_t)0x0005)
#define IS_I2S_DATA_FORMAT(FORMAT) (((FORMAT) == I2S_DataFormat_16b) || \
((FORMAT) == I2S_DataFormat_16bextended) || \
((FORMAT) == I2S_DataFormat_24b) || \
((FORMAT) == I2S_DataFormat_32b))
/**
* @}
*/
/** @defgroup I2S_MCLK_Output
* @{
*/
#define I2S_MCLKOutput_Enable ((uint16_t)0x0200)
#define I2S_MCLKOutput_Disable ((uint16_t)0x0000)
#define IS_I2S_MCLK_OUTPUT(OUTPUT) (((OUTPUT) == I2S_MCLKOutput_Enable) || \
((OUTPUT) == I2S_MCLKOutput_Disable))
/**
* @}
*/
/** @defgroup I2S_Audio_Frequency
* @{
*/
#define I2S_AudioFreq_192k ((uint32_t)192000)
#define I2S_AudioFreq_96k ((uint32_t)96000)
#define I2S_AudioFreq_48k ((uint32_t)48000)
#define I2S_AudioFreq_44k ((uint32_t)44100)
#define I2S_AudioFreq_32k ((uint32_t)32000)
#define I2S_AudioFreq_22k ((uint32_t)22050)
#define I2S_AudioFreq_16k ((uint32_t)16000)
#define I2S_AudioFreq_11k ((uint32_t)11025)
#define I2S_AudioFreq_8k ((uint32_t)8000)
#define I2S_AudioFreq_Default ((uint32_t)2)
#define IS_I2S_AUDIO_FREQ(FREQ) ((((FREQ) >= I2S_AudioFreq_8k) && \
((FREQ) <= I2S_AudioFreq_192k)) || \
((FREQ) == I2S_AudioFreq_Default))
/**
* @}
*/
/** @defgroup I2S_Clock_Polarity
* @{
*/
#define I2S_CPOL_Low ((uint16_t)0x0000)
#define I2S_CPOL_High ((uint16_t)0x0008)
#define IS_I2S_CPOL(CPOL) (((CPOL) == I2S_CPOL_Low) || \
((CPOL) == I2S_CPOL_High))
/**
* @}
*/
/** @defgroup SPI_I2S_DMA_transfer_requests
* @{
*/
#define SPI_I2S_DMAReq_Tx ((uint16_t)0x0002)
#define SPI_I2S_DMAReq_Rx ((uint16_t)0x0001)
#define IS_SPI_I2S_DMAREQ(DMAREQ) ((((DMAREQ) & (uint16_t)0xFFFC) == 0x00) && ((DMAREQ) != 0x00))
/**
* @}
*/
/** @defgroup SPI_NSS_internal_software_management
* @{
*/
#define SPI_NSSInternalSoft_Set ((uint16_t)0x0100)
#define SPI_NSSInternalSoft_Reset ((uint16_t)0xFEFF)
#define IS_SPI_NSS_INTERNAL(INTERNAL) (((INTERNAL) == SPI_NSSInternalSoft_Set) || \
((INTERNAL) == SPI_NSSInternalSoft_Reset))
/**
* @}
*/
/** @defgroup SPI_CRC_Transmit_Receive
* @{
*/
#define SPI_CRC_Tx ((uint8_t)0x00)
#define SPI_CRC_Rx ((uint8_t)0x01)
#define IS_SPI_CRC(CRC) (((CRC) == SPI_CRC_Tx) || ((CRC) == SPI_CRC_Rx))
/**
* @}
*/
/** @defgroup SPI_direction_transmit_receive
* @{
*/
#define SPI_Direction_Rx ((uint16_t)0xBFFF)
#define SPI_Direction_Tx ((uint16_t)0x4000)
#define IS_SPI_DIRECTION(DIRECTION) (((DIRECTION) == SPI_Direction_Rx) || \
((DIRECTION) == SPI_Direction_Tx))
/**
* @}
*/
/** @defgroup SPI_I2S_interrupts_definition
* @{
*/
#define SPI_I2S_IT_TXE ((uint8_t)0x71)
#define SPI_I2S_IT_RXNE ((uint8_t)0x60)
#define SPI_I2S_IT_ERR ((uint8_t)0x50)
#define IS_SPI_I2S_CONFIG_IT(IT) (((IT) == SPI_I2S_IT_TXE) || \
((IT) == SPI_I2S_IT_RXNE) || \
((IT) == SPI_I2S_IT_ERR))
#define SPI_I2S_IT_OVR ((uint8_t)0x56)
#define SPI_IT_MODF ((uint8_t)0x55)
#define SPI_IT_CRCERR ((uint8_t)0x54)
#define I2S_IT_UDR ((uint8_t)0x53)
#define IS_SPI_I2S_CLEAR_IT(IT) (((IT) == SPI_IT_CRCERR))
#define IS_SPI_I2S_GET_IT(IT) (((IT) == SPI_I2S_IT_RXNE) || ((IT) == SPI_I2S_IT_TXE) || \
((IT) == I2S_IT_UDR) || ((IT) == SPI_IT_CRCERR) || \
((IT) == SPI_IT_MODF) || ((IT) == SPI_I2S_IT_OVR))
/**
* @}
*/
/** @defgroup SPI_I2S_flags_definition
* @{
*/
#define SPI_I2S_FLAG_RXNE ((uint16_t)0x0001)
#define SPI_I2S_FLAG_TXE ((uint16_t)0x0002)
#define I2S_FLAG_CHSIDE ((uint16_t)0x0004)
#define I2S_FLAG_UDR ((uint16_t)0x0008)
#define SPI_FLAG_CRCERR ((uint16_t)0x0010)
#define SPI_FLAG_MODF ((uint16_t)0x0020)
#define SPI_I2S_FLAG_OVR ((uint16_t)0x0040)
#define SPI_I2S_FLAG_BSY ((uint16_t)0x0080)
#define IS_SPI_I2S_CLEAR_FLAG(FLAG) (((FLAG) == SPI_FLAG_CRCERR))
#define IS_SPI_I2S_GET_FLAG(FLAG) (((FLAG) == SPI_I2S_FLAG_BSY) || ((FLAG) == SPI_I2S_FLAG_OVR) || \
((FLAG) == SPI_FLAG_MODF) || ((FLAG) == SPI_FLAG_CRCERR) || \
((FLAG) == I2S_FLAG_UDR) || ((FLAG) == I2S_FLAG_CHSIDE) || \
((FLAG) == SPI_I2S_FLAG_TXE) || ((FLAG) == SPI_I2S_FLAG_RXNE))
/**
* @}
*/
/** @defgroup SPI_CRC_polynomial
* @{
*/
#define IS_SPI_CRC_POLYNOMIAL(POLYNOMIAL) ((POLYNOMIAL) >= 0x1)
/**
* @}
*/
/**
* @}
*/
/** @defgroup SPI_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup SPI_Exported_Functions
* @{
*/
void SPI_I2S_DeInit(SPI_TypeDef* SPIx);
void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct);
void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct);
void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct);
void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct);
void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState);
void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState);
void SPI_I2S_SendData(SPI_TypeDef* SPIx, uint16_t Data);
uint16_t SPI_I2S_ReceiveData(SPI_TypeDef* SPIx);
void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft);
void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize);
void SPI_TransmitCRC(SPI_TypeDef* SPIx);
void SPI_CalculateCRC(SPI_TypeDef* SPIx, FunctionalState NewState);
uint16_t SPI_GetCRC(SPI_TypeDef* SPIx, uint8_t SPI_CRC);
uint16_t SPI_GetCRCPolynomial(SPI_TypeDef* SPIx);
void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction);
FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);
void SPI_I2S_ClearITPendingBit(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F10x_SPI_H */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/