diff --git a/3-5 GPIO_光敏传感器/Library/stm32f10x_bkp.h b/3-5 GPIO_光敏传感器/Library/stm32f10x_bkp.h new file mode 100644 index 0000000..b620753 --- /dev/null +++ b/3-5 GPIO_光敏传感器/Library/stm32f10x_bkp.h @@ -0,0 +1,195 @@ +/** + ****************************************************************************** + * @file stm32f10x_bkp.h + * @author MCD Application Team + * @version V3.5.0 + * @date 11-March-2011 + * @brief This file contains all the functions prototypes for the BKP 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. + * + *

© COPYRIGHT 2011 STMicroelectronics

+ ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_BKP_H +#define __STM32F10x_BKP_H + +#ifdef __cplusplus + extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Driver + * @{ + */ + +/** @addtogroup BKP + * @{ + */ + +/** @defgroup BKP_Exported_Types + * @{ + */ + +/** + * @} + */ + +/** @defgroup BKP_Exported_Constants + * @{ + */ + +/** @defgroup Tamper_Pin_active_level + * @{ + */ + +#define BKP_TamperPinLevel_High ((uint16_t)0x0000) +#define BKP_TamperPinLevel_Low ((uint16_t)0x0001) +#define IS_BKP_TAMPER_PIN_LEVEL(LEVEL) (((LEVEL) == BKP_TamperPinLevel_High) || \ + ((LEVEL) == BKP_TamperPinLevel_Low)) +/** + * @} + */ + +/** @defgroup RTC_output_source_to_output_on_the_Tamper_pin + * @{ + */ + +#define BKP_RTCOutputSource_None ((uint16_t)0x0000) +#define BKP_RTCOutputSource_CalibClock ((uint16_t)0x0080) +#define BKP_RTCOutputSource_Alarm ((uint16_t)0x0100) +#define BKP_RTCOutputSource_Second ((uint16_t)0x0300) +#define IS_BKP_RTC_OUTPUT_SOURCE(SOURCE) (((SOURCE) == BKP_RTCOutputSource_None) || \ + ((SOURCE) == BKP_RTCOutputSource_CalibClock) || \ + ((SOURCE) == BKP_RTCOutputSource_Alarm) || \ + ((SOURCE) == BKP_RTCOutputSource_Second)) +/** + * @} + */ + +/** @defgroup Data_Backup_Register + * @{ + */ + +#define BKP_DR1 ((uint16_t)0x0004) +#define BKP_DR2 ((uint16_t)0x0008) +#define BKP_DR3 ((uint16_t)0x000C) +#define BKP_DR4 ((uint16_t)0x0010) +#define BKP_DR5 ((uint16_t)0x0014) +#define BKP_DR6 ((uint16_t)0x0018) +#define BKP_DR7 ((uint16_t)0x001C) +#define BKP_DR8 ((uint16_t)0x0020) +#define BKP_DR9 ((uint16_t)0x0024) +#define BKP_DR10 ((uint16_t)0x0028) +#define BKP_DR11 ((uint16_t)0x0040) +#define BKP_DR12 ((uint16_t)0x0044) +#define BKP_DR13 ((uint16_t)0x0048) +#define BKP_DR14 ((uint16_t)0x004C) +#define BKP_DR15 ((uint16_t)0x0050) +#define BKP_DR16 ((uint16_t)0x0054) +#define BKP_DR17 ((uint16_t)0x0058) +#define BKP_DR18 ((uint16_t)0x005C) +#define BKP_DR19 ((uint16_t)0x0060) +#define BKP_DR20 ((uint16_t)0x0064) +#define BKP_DR21 ((uint16_t)0x0068) +#define BKP_DR22 ((uint16_t)0x006C) +#define BKP_DR23 ((uint16_t)0x0070) +#define BKP_DR24 ((uint16_t)0x0074) +#define BKP_DR25 ((uint16_t)0x0078) +#define BKP_DR26 ((uint16_t)0x007C) +#define BKP_DR27 ((uint16_t)0x0080) +#define BKP_DR28 ((uint16_t)0x0084) +#define BKP_DR29 ((uint16_t)0x0088) +#define BKP_DR30 ((uint16_t)0x008C) +#define BKP_DR31 ((uint16_t)0x0090) +#define BKP_DR32 ((uint16_t)0x0094) +#define BKP_DR33 ((uint16_t)0x0098) +#define BKP_DR34 ((uint16_t)0x009C) +#define BKP_DR35 ((uint16_t)0x00A0) +#define BKP_DR36 ((uint16_t)0x00A4) +#define BKP_DR37 ((uint16_t)0x00A8) +#define BKP_DR38 ((uint16_t)0x00AC) +#define BKP_DR39 ((uint16_t)0x00B0) +#define BKP_DR40 ((uint16_t)0x00B4) +#define BKP_DR41 ((uint16_t)0x00B8) +#define BKP_DR42 ((uint16_t)0x00BC) + +#define IS_BKP_DR(DR) (((DR) == BKP_DR1) || ((DR) == BKP_DR2) || ((DR) == BKP_DR3) || \ + ((DR) == BKP_DR4) || ((DR) == BKP_DR5) || ((DR) == BKP_DR6) || \ + ((DR) == BKP_DR7) || ((DR) == BKP_DR8) || ((DR) == BKP_DR9) || \ + ((DR) == BKP_DR10) || ((DR) == BKP_DR11) || ((DR) == BKP_DR12) || \ + ((DR) == BKP_DR13) || ((DR) == BKP_DR14) || ((DR) == BKP_DR15) || \ + ((DR) == BKP_DR16) || ((DR) == BKP_DR17) || ((DR) == BKP_DR18) || \ + ((DR) == BKP_DR19) || ((DR) == BKP_DR20) || ((DR) == BKP_DR21) || \ + ((DR) == BKP_DR22) || ((DR) == BKP_DR23) || ((DR) == BKP_DR24) || \ + ((DR) == BKP_DR25) || ((DR) == BKP_DR26) || ((DR) == BKP_DR27) || \ + ((DR) == BKP_DR28) || ((DR) == BKP_DR29) || ((DR) == BKP_DR30) || \ + ((DR) == BKP_DR31) || ((DR) == BKP_DR32) || ((DR) == BKP_DR33) || \ + ((DR) == BKP_DR34) || ((DR) == BKP_DR35) || ((DR) == BKP_DR36) || \ + ((DR) == BKP_DR37) || ((DR) == BKP_DR38) || ((DR) == BKP_DR39) || \ + ((DR) == BKP_DR40) || ((DR) == BKP_DR41) || ((DR) == BKP_DR42)) + +#define IS_BKP_CALIBRATION_VALUE(VALUE) ((VALUE) <= 0x7F) +/** + * @} + */ + +/** + * @} + */ + +/** @defgroup BKP_Exported_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup BKP_Exported_Functions + * @{ + */ + +void BKP_DeInit(void); +void BKP_TamperPinLevelConfig(uint16_t BKP_TamperPinLevel); +void BKP_TamperPinCmd(FunctionalState NewState); +void BKP_ITConfig(FunctionalState NewState); +void BKP_RTCOutputConfig(uint16_t BKP_RTCOutputSource); +void BKP_SetRTCCalibrationValue(uint8_t CalibrationValue); +void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t Data); +uint16_t BKP_ReadBackupRegister(uint16_t BKP_DR); +FlagStatus BKP_GetFlagStatus(void); +void BKP_ClearFlag(void); +ITStatus BKP_GetITStatus(void); +void BKP_ClearITPendingBit(void); + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F10x_BKP_H */ +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/3-5 GPIO_光敏传感器/Library/stm32f10x_can.c b/3-5 GPIO_光敏传感器/Library/stm32f10x_can.c new file mode 100644 index 0000000..607d692 --- /dev/null +++ b/3-5 GPIO_光敏传感器/Library/stm32f10x_can.c @@ -0,0 +1,1415 @@ +/** + ****************************************************************************** + * @file stm32f10x_can.c + * @author MCD Application Team + * @version V3.5.0 + * @date 11-March-2011 + * @brief This file provides all the CAN 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. + * + *

© COPYRIGHT 2011 STMicroelectronics

+ ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_can.h" +#include "stm32f10x_rcc.h" + +/** @addtogroup STM32F10x_StdPeriph_Driver + * @{ + */ + +/** @defgroup CAN + * @brief CAN driver modules + * @{ + */ + +/** @defgroup CAN_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @defgroup CAN_Private_Defines + * @{ + */ + +/* CAN Master Control Register bits */ + +#define MCR_DBF ((uint32_t)0x00010000) /* software master reset */ + +/* CAN Mailbox Transmit Request */ +#define TMIDxR_TXRQ ((uint32_t)0x00000001) /* Transmit mailbox request */ + +/* CAN Filter Master Register bits */ +#define FMR_FINIT ((uint32_t)0x00000001) /* Filter init mode */ + +/* Time out for INAK bit */ +#define INAK_TIMEOUT ((uint32_t)0x0000FFFF) +/* Time out for SLAK bit */ +#define SLAK_TIMEOUT ((uint32_t)0x0000FFFF) + + + +/* Flags in TSR register */ +#define CAN_FLAGS_TSR ((uint32_t)0x08000000) +/* Flags in RF1R register */ +#define CAN_FLAGS_RF1R ((uint32_t)0x04000000) +/* Flags in RF0R register */ +#define CAN_FLAGS_RF0R ((uint32_t)0x02000000) +/* Flags in MSR register */ +#define CAN_FLAGS_MSR ((uint32_t)0x01000000) +/* Flags in ESR register */ +#define CAN_FLAGS_ESR ((uint32_t)0x00F00000) + +/* Mailboxes definition */ +#define CAN_TXMAILBOX_0 ((uint8_t)0x00) +#define CAN_TXMAILBOX_1 ((uint8_t)0x01) +#define CAN_TXMAILBOX_2 ((uint8_t)0x02) + + + +#define CAN_MODE_MASK ((uint32_t) 0x00000003) +/** + * @} + */ + +/** @defgroup CAN_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup CAN_Private_Variables + * @{ + */ + +/** + * @} + */ + +/** @defgroup CAN_Private_FunctionPrototypes + * @{ + */ + +static ITStatus CheckITStatus(uint32_t CAN_Reg, uint32_t It_Bit); + +/** + * @} + */ + +/** @defgroup CAN_Private_Functions + * @{ + */ + +/** + * @brief Deinitializes the CAN peripheral registers to their default reset values. + * @param CANx: where x can be 1 or 2 to select the CAN peripheral. + * @retval None. + */ +void CAN_DeInit(CAN_TypeDef* CANx) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + + if (CANx == CAN1) + { + /* Enable CAN1 reset state */ + RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN1, ENABLE); + /* Release CAN1 from reset state */ + RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN1, DISABLE); + } + else + { + /* Enable CAN2 reset state */ + RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN2, ENABLE); + /* Release CAN2 from reset state */ + RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN2, DISABLE); + } +} + +/** + * @brief Initializes the CAN peripheral according to the specified + * parameters in the CAN_InitStruct. + * @param CANx: where x can be 1 or 2 to to select the CAN + * peripheral. + * @param CAN_InitStruct: pointer to a CAN_InitTypeDef structure that + * contains the configuration information for the + * CAN peripheral. + * @retval Constant indicates initialization succeed which will be + * CAN_InitStatus_Failed or CAN_InitStatus_Success. + */ +uint8_t CAN_Init(CAN_TypeDef* CANx, CAN_InitTypeDef* CAN_InitStruct) +{ + uint8_t InitStatus = CAN_InitStatus_Failed; + uint32_t wait_ack = 0x00000000; + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_TTCM)); + assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_ABOM)); + assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_AWUM)); + assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_NART)); + assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_RFLM)); + assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_TXFP)); + assert_param(IS_CAN_MODE(CAN_InitStruct->CAN_Mode)); + assert_param(IS_CAN_SJW(CAN_InitStruct->CAN_SJW)); + assert_param(IS_CAN_BS1(CAN_InitStruct->CAN_BS1)); + assert_param(IS_CAN_BS2(CAN_InitStruct->CAN_BS2)); + assert_param(IS_CAN_PRESCALER(CAN_InitStruct->CAN_Prescaler)); + + /* Exit from sleep mode */ + CANx->MCR &= (~(uint32_t)CAN_MCR_SLEEP); + + /* Request initialisation */ + CANx->MCR |= CAN_MCR_INRQ ; + + /* Wait the acknowledge */ + while (((CANx->MSR & CAN_MSR_INAK) != CAN_MSR_INAK) && (wait_ack != INAK_TIMEOUT)) + { + wait_ack++; + } + + /* Check acknowledge */ + if ((CANx->MSR & CAN_MSR_INAK) != CAN_MSR_INAK) + { + InitStatus = CAN_InitStatus_Failed; + } + else + { + /* Set the time triggered communication mode */ + if (CAN_InitStruct->CAN_TTCM == ENABLE) + { + CANx->MCR |= CAN_MCR_TTCM; + } + else + { + CANx->MCR &= ~(uint32_t)CAN_MCR_TTCM; + } + + /* Set the automatic bus-off management */ + if (CAN_InitStruct->CAN_ABOM == ENABLE) + { + CANx->MCR |= CAN_MCR_ABOM; + } + else + { + CANx->MCR &= ~(uint32_t)CAN_MCR_ABOM; + } + + /* Set the automatic wake-up mode */ + if (CAN_InitStruct->CAN_AWUM == ENABLE) + { + CANx->MCR |= CAN_MCR_AWUM; + } + else + { + CANx->MCR &= ~(uint32_t)CAN_MCR_AWUM; + } + + /* Set the no automatic retransmission */ + if (CAN_InitStruct->CAN_NART == ENABLE) + { + CANx->MCR |= CAN_MCR_NART; + } + else + { + CANx->MCR &= ~(uint32_t)CAN_MCR_NART; + } + + /* Set the receive FIFO locked mode */ + if (CAN_InitStruct->CAN_RFLM == ENABLE) + { + CANx->MCR |= CAN_MCR_RFLM; + } + else + { + CANx->MCR &= ~(uint32_t)CAN_MCR_RFLM; + } + + /* Set the transmit FIFO priority */ + if (CAN_InitStruct->CAN_TXFP == ENABLE) + { + CANx->MCR |= CAN_MCR_TXFP; + } + else + { + CANx->MCR &= ~(uint32_t)CAN_MCR_TXFP; + } + + /* Set the bit timing register */ + CANx->BTR = (uint32_t)((uint32_t)CAN_InitStruct->CAN_Mode << 30) | \ + ((uint32_t)CAN_InitStruct->CAN_SJW << 24) | \ + ((uint32_t)CAN_InitStruct->CAN_BS1 << 16) | \ + ((uint32_t)CAN_InitStruct->CAN_BS2 << 20) | \ + ((uint32_t)CAN_InitStruct->CAN_Prescaler - 1); + + /* Request leave initialisation */ + CANx->MCR &= ~(uint32_t)CAN_MCR_INRQ; + + /* Wait the acknowledge */ + wait_ack = 0; + + while (((CANx->MSR & CAN_MSR_INAK) == CAN_MSR_INAK) && (wait_ack != INAK_TIMEOUT)) + { + wait_ack++; + } + + /* ...and check acknowledged */ + if ((CANx->MSR & CAN_MSR_INAK) == CAN_MSR_INAK) + { + InitStatus = CAN_InitStatus_Failed; + } + else + { + InitStatus = CAN_InitStatus_Success ; + } + } + + /* At this step, return the status of initialization */ + return InitStatus; +} + +/** + * @brief Initializes the CAN peripheral according to the specified + * parameters in the CAN_FilterInitStruct. + * @param CAN_FilterInitStruct: pointer to a CAN_FilterInitTypeDef + * structure that contains the configuration + * information. + * @retval None. + */ +void CAN_FilterInit(CAN_FilterInitTypeDef* CAN_FilterInitStruct) +{ + uint32_t filter_number_bit_pos = 0; + /* Check the parameters */ + assert_param(IS_CAN_FILTER_NUMBER(CAN_FilterInitStruct->CAN_FilterNumber)); + assert_param(IS_CAN_FILTER_MODE(CAN_FilterInitStruct->CAN_FilterMode)); + assert_param(IS_CAN_FILTER_SCALE(CAN_FilterInitStruct->CAN_FilterScale)); + assert_param(IS_CAN_FILTER_FIFO(CAN_FilterInitStruct->CAN_FilterFIFOAssignment)); + assert_param(IS_FUNCTIONAL_STATE(CAN_FilterInitStruct->CAN_FilterActivation)); + + filter_number_bit_pos = ((uint32_t)1) << CAN_FilterInitStruct->CAN_FilterNumber; + + /* Initialisation mode for the filter */ + CAN1->FMR |= FMR_FINIT; + + /* Filter Deactivation */ + CAN1->FA1R &= ~(uint32_t)filter_number_bit_pos; + + /* Filter Scale */ + if (CAN_FilterInitStruct->CAN_FilterScale == CAN_FilterScale_16bit) + { + /* 16-bit scale for the filter */ + CAN1->FS1R &= ~(uint32_t)filter_number_bit_pos; + + /* First 16-bit identifier and First 16-bit mask */ + /* Or First 16-bit identifier and Second 16-bit identifier */ + CAN1->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR1 = + ((0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterMaskIdLow) << 16) | + (0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterIdLow); + + /* Second 16-bit identifier and Second 16-bit mask */ + /* Or Third 16-bit identifier and Fourth 16-bit identifier */ + CAN1->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR2 = + ((0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterMaskIdHigh) << 16) | + (0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterIdHigh); + } + + if (CAN_FilterInitStruct->CAN_FilterScale == CAN_FilterScale_32bit) + { + /* 32-bit scale for the filter */ + CAN1->FS1R |= filter_number_bit_pos; + /* 32-bit identifier or First 32-bit identifier */ + CAN1->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR1 = + ((0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterIdHigh) << 16) | + (0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterIdLow); + /* 32-bit mask or Second 32-bit identifier */ + CAN1->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR2 = + ((0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterMaskIdHigh) << 16) | + (0x0000FFFF & (uint32_t)CAN_FilterInitStruct->CAN_FilterMaskIdLow); + } + + /* Filter Mode */ + if (CAN_FilterInitStruct->CAN_FilterMode == CAN_FilterMode_IdMask) + { + /*Id/Mask mode for the filter*/ + CAN1->FM1R &= ~(uint32_t)filter_number_bit_pos; + } + else /* CAN_FilterInitStruct->CAN_FilterMode == CAN_FilterMode_IdList */ + { + /*Identifier list mode for the filter*/ + CAN1->FM1R |= (uint32_t)filter_number_bit_pos; + } + + /* Filter FIFO assignment */ + if (CAN_FilterInitStruct->CAN_FilterFIFOAssignment == CAN_Filter_FIFO0) + { + /* FIFO 0 assignation for the filter */ + CAN1->FFA1R &= ~(uint32_t)filter_number_bit_pos; + } + + if (CAN_FilterInitStruct->CAN_FilterFIFOAssignment == CAN_Filter_FIFO1) + { + /* FIFO 1 assignation for the filter */ + CAN1->FFA1R |= (uint32_t)filter_number_bit_pos; + } + + /* Filter activation */ + if (CAN_FilterInitStruct->CAN_FilterActivation == ENABLE) + { + CAN1->FA1R |= filter_number_bit_pos; + } + + /* Leave the initialisation mode for the filter */ + CAN1->FMR &= ~FMR_FINIT; +} + +/** + * @brief Fills each CAN_InitStruct member with its default value. + * @param CAN_InitStruct: pointer to a CAN_InitTypeDef structure which + * will be initialized. + * @retval None. + */ +void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct) +{ + /* Reset CAN init structure parameters values */ + + /* Initialize the time triggered communication mode */ + CAN_InitStruct->CAN_TTCM = DISABLE; + + /* Initialize the automatic bus-off management */ + CAN_InitStruct->CAN_ABOM = DISABLE; + + /* Initialize the automatic wake-up mode */ + CAN_InitStruct->CAN_AWUM = DISABLE; + + /* Initialize the no automatic retransmission */ + CAN_InitStruct->CAN_NART = DISABLE; + + /* Initialize the receive FIFO locked mode */ + CAN_InitStruct->CAN_RFLM = DISABLE; + + /* Initialize the transmit FIFO priority */ + CAN_InitStruct->CAN_TXFP = DISABLE; + + /* Initialize the CAN_Mode member */ + CAN_InitStruct->CAN_Mode = CAN_Mode_Normal; + + /* Initialize the CAN_SJW member */ + CAN_InitStruct->CAN_SJW = CAN_SJW_1tq; + + /* Initialize the CAN_BS1 member */ + CAN_InitStruct->CAN_BS1 = CAN_BS1_4tq; + + /* Initialize the CAN_BS2 member */ + CAN_InitStruct->CAN_BS2 = CAN_BS2_3tq; + + /* Initialize the CAN_Prescaler member */ + CAN_InitStruct->CAN_Prescaler = 1; +} + +/** + * @brief Select the start bank filter for slave CAN. + * @note This function applies only to STM32 Connectivity line devices. + * @param CAN_BankNumber: Select the start slave bank filter from 1..27. + * @retval None. + */ +void CAN_SlaveStartBank(uint8_t CAN_BankNumber) +{ + /* Check the parameters */ + assert_param(IS_CAN_BANKNUMBER(CAN_BankNumber)); + + /* Enter Initialisation mode for the filter */ + CAN1->FMR |= FMR_FINIT; + + /* Select the start slave bank */ + CAN1->FMR &= (uint32_t)0xFFFFC0F1 ; + CAN1->FMR |= (uint32_t)(CAN_BankNumber)<<8; + + /* Leave Initialisation mode for the filter */ + CAN1->FMR &= ~FMR_FINIT; +} + +/** + * @brief Enables or disables the DBG Freeze for CAN. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param NewState: new state of the CAN peripheral. This parameter can + * be: ENABLE or DISABLE. + * @retval None. + */ +void CAN_DBGFreeze(CAN_TypeDef* CANx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable Debug Freeze */ + CANx->MCR |= MCR_DBF; + } + else + { + /* Disable Debug Freeze */ + CANx->MCR &= ~MCR_DBF; + } +} + + +/** + * @brief Enables or disabes the CAN Time TriggerOperation communication mode. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param NewState : Mode new state , can be one of @ref FunctionalState. + * @note when enabled, Time stamp (TIME[15:0]) value is sent in the last + * two data bytes of the 8-byte message: TIME[7:0] in data byte 6 + * and TIME[15:8] in data byte 7 + * @note DLC must be programmed as 8 in order Time Stamp (2 bytes) to be + * sent over the CAN bus. + * @retval None + */ +void CAN_TTComModeCmd(CAN_TypeDef* CANx, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + if (NewState != DISABLE) + { + /* Enable the TTCM mode */ + CANx->MCR |= CAN_MCR_TTCM; + + /* Set TGT bits */ + CANx->sTxMailBox[0].TDTR |= ((uint32_t)CAN_TDT0R_TGT); + CANx->sTxMailBox[1].TDTR |= ((uint32_t)CAN_TDT1R_TGT); + CANx->sTxMailBox[2].TDTR |= ((uint32_t)CAN_TDT2R_TGT); + } + else + { + /* Disable the TTCM mode */ + CANx->MCR &= (uint32_t)(~(uint32_t)CAN_MCR_TTCM); + + /* Reset TGT bits */ + CANx->sTxMailBox[0].TDTR &= ((uint32_t)~CAN_TDT0R_TGT); + CANx->sTxMailBox[1].TDTR &= ((uint32_t)~CAN_TDT1R_TGT); + CANx->sTxMailBox[2].TDTR &= ((uint32_t)~CAN_TDT2R_TGT); + } +} +/** + * @brief Initiates the transmission of a message. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param TxMessage: pointer to a structure which contains CAN Id, CAN + * DLC and CAN data. + * @retval The number of the mailbox that is used for transmission + * or CAN_TxStatus_NoMailBox if there is no empty mailbox. + */ +uint8_t CAN_Transmit(CAN_TypeDef* CANx, CanTxMsg* TxMessage) +{ + uint8_t transmit_mailbox = 0; + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_IDTYPE(TxMessage->IDE)); + assert_param(IS_CAN_RTR(TxMessage->RTR)); + assert_param(IS_CAN_DLC(TxMessage->DLC)); + + /* Select one empty transmit mailbox */ + if ((CANx->TSR&CAN_TSR_TME0) == CAN_TSR_TME0) + { + transmit_mailbox = 0; + } + else if ((CANx->TSR&CAN_TSR_TME1) == CAN_TSR_TME1) + { + transmit_mailbox = 1; + } + else if ((CANx->TSR&CAN_TSR_TME2) == CAN_TSR_TME2) + { + transmit_mailbox = 2; + } + else + { + transmit_mailbox = CAN_TxStatus_NoMailBox; + } + + if (transmit_mailbox != CAN_TxStatus_NoMailBox) + { + /* Set up the Id */ + CANx->sTxMailBox[transmit_mailbox].TIR &= TMIDxR_TXRQ; + if (TxMessage->IDE == CAN_Id_Standard) + { + assert_param(IS_CAN_STDID(TxMessage->StdId)); + CANx->sTxMailBox[transmit_mailbox].TIR |= ((TxMessage->StdId << 21) | \ + TxMessage->RTR); + } + else + { + assert_param(IS_CAN_EXTID(TxMessage->ExtId)); + CANx->sTxMailBox[transmit_mailbox].TIR |= ((TxMessage->ExtId << 3) | \ + TxMessage->IDE | \ + TxMessage->RTR); + } + + /* Set up the DLC */ + TxMessage->DLC &= (uint8_t)0x0000000F; + CANx->sTxMailBox[transmit_mailbox].TDTR &= (uint32_t)0xFFFFFFF0; + CANx->sTxMailBox[transmit_mailbox].TDTR |= TxMessage->DLC; + + /* Set up the data field */ + CANx->sTxMailBox[transmit_mailbox].TDLR = (((uint32_t)TxMessage->Data[3] << 24) | + ((uint32_t)TxMessage->Data[2] << 16) | + ((uint32_t)TxMessage->Data[1] << 8) | + ((uint32_t)TxMessage->Data[0])); + CANx->sTxMailBox[transmit_mailbox].TDHR = (((uint32_t)TxMessage->Data[7] << 24) | + ((uint32_t)TxMessage->Data[6] << 16) | + ((uint32_t)TxMessage->Data[5] << 8) | + ((uint32_t)TxMessage->Data[4])); + /* Request transmission */ + CANx->sTxMailBox[transmit_mailbox].TIR |= TMIDxR_TXRQ; + } + return transmit_mailbox; +} + +/** + * @brief Checks the transmission of a message. + * @param CANx: where x can be 1 or 2 to to select the + * CAN peripheral. + * @param TransmitMailbox: the number of the mailbox that is used for + * transmission. + * @retval CAN_TxStatus_Ok if the CAN driver transmits the message, CAN_TxStatus_Failed + * in an other case. + */ +uint8_t CAN_TransmitStatus(CAN_TypeDef* CANx, uint8_t TransmitMailbox) +{ + uint32_t state = 0; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_TRANSMITMAILBOX(TransmitMailbox)); + + switch (TransmitMailbox) + { + case (CAN_TXMAILBOX_0): + state = CANx->TSR & (CAN_TSR_RQCP0 | CAN_TSR_TXOK0 | CAN_TSR_TME0); + break; + case (CAN_TXMAILBOX_1): + state = CANx->TSR & (CAN_TSR_RQCP1 | CAN_TSR_TXOK1 | CAN_TSR_TME1); + break; + case (CAN_TXMAILBOX_2): + state = CANx->TSR & (CAN_TSR_RQCP2 | CAN_TSR_TXOK2 | CAN_TSR_TME2); + break; + default: + state = CAN_TxStatus_Failed; + break; + } + switch (state) + { + /* transmit pending */ + case (0x0): state = CAN_TxStatus_Pending; + break; + /* transmit failed */ + case (CAN_TSR_RQCP0 | CAN_TSR_TME0): state = CAN_TxStatus_Failed; + break; + case (CAN_TSR_RQCP1 | CAN_TSR_TME1): state = CAN_TxStatus_Failed; + break; + case (CAN_TSR_RQCP2 | CAN_TSR_TME2): state = CAN_TxStatus_Failed; + break; + /* transmit succeeded */ + case (CAN_TSR_RQCP0 | CAN_TSR_TXOK0 | CAN_TSR_TME0):state = CAN_TxStatus_Ok; + break; + case (CAN_TSR_RQCP1 | CAN_TSR_TXOK1 | CAN_TSR_TME1):state = CAN_TxStatus_Ok; + break; + case (CAN_TSR_RQCP2 | CAN_TSR_TXOK2 | CAN_TSR_TME2):state = CAN_TxStatus_Ok; + break; + default: state = CAN_TxStatus_Failed; + break; + } + return (uint8_t) state; +} + +/** + * @brief Cancels a transmit request. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param Mailbox: Mailbox number. + * @retval None. + */ +void CAN_CancelTransmit(CAN_TypeDef* CANx, uint8_t Mailbox) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_TRANSMITMAILBOX(Mailbox)); + /* abort transmission */ + switch (Mailbox) + { + case (CAN_TXMAILBOX_0): CANx->TSR |= CAN_TSR_ABRQ0; + break; + case (CAN_TXMAILBOX_1): CANx->TSR |= CAN_TSR_ABRQ1; + break; + case (CAN_TXMAILBOX_2): CANx->TSR |= CAN_TSR_ABRQ2; + break; + default: + break; + } +} + + +/** + * @brief Receives a message. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param FIFONumber: Receive FIFO number, CAN_FIFO0 or CAN_FIFO1. + * @param RxMessage: pointer to a structure receive message which contains + * CAN Id, CAN DLC, CAN datas and FMI number. + * @retval None. + */ +void CAN_Receive(CAN_TypeDef* CANx, uint8_t FIFONumber, CanRxMsg* RxMessage) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_FIFO(FIFONumber)); + /* Get the Id */ + RxMessage->IDE = (uint8_t)0x04 & CANx->sFIFOMailBox[FIFONumber].RIR; + if (RxMessage->IDE == CAN_Id_Standard) + { + RxMessage->StdId = (uint32_t)0x000007FF & (CANx->sFIFOMailBox[FIFONumber].RIR >> 21); + } + else + { + RxMessage->ExtId = (uint32_t)0x1FFFFFFF & (CANx->sFIFOMailBox[FIFONumber].RIR >> 3); + } + + RxMessage->RTR = (uint8_t)0x02 & CANx->sFIFOMailBox[FIFONumber].RIR; + /* Get the DLC */ + RxMessage->DLC = (uint8_t)0x0F & CANx->sFIFOMailBox[FIFONumber].RDTR; + /* Get the FMI */ + RxMessage->FMI = (uint8_t)0xFF & (CANx->sFIFOMailBox[FIFONumber].RDTR >> 8); + /* Get the data field */ + RxMessage->Data[0] = (uint8_t)0xFF & CANx->sFIFOMailBox[FIFONumber].RDLR; + RxMessage->Data[1] = (uint8_t)0xFF & (CANx->sFIFOMailBox[FIFONumber].RDLR >> 8); + RxMessage->Data[2] = (uint8_t)0xFF & (CANx->sFIFOMailBox[FIFONumber].RDLR >> 16); + RxMessage->Data[3] = (uint8_t)0xFF & (CANx->sFIFOMailBox[FIFONumber].RDLR >> 24); + RxMessage->Data[4] = (uint8_t)0xFF & CANx->sFIFOMailBox[FIFONumber].RDHR; + RxMessage->Data[5] = (uint8_t)0xFF & (CANx->sFIFOMailBox[FIFONumber].RDHR >> 8); + RxMessage->Data[6] = (uint8_t)0xFF & (CANx->sFIFOMailBox[FIFONumber].RDHR >> 16); + RxMessage->Data[7] = (uint8_t)0xFF & (CANx->sFIFOMailBox[FIFONumber].RDHR >> 24); + /* Release the FIFO */ + /* Release FIFO0 */ + if (FIFONumber == CAN_FIFO0) + { + CANx->RF0R |= CAN_RF0R_RFOM0; + } + /* Release FIFO1 */ + else /* FIFONumber == CAN_FIFO1 */ + { + CANx->RF1R |= CAN_RF1R_RFOM1; + } +} + +/** + * @brief Releases the specified FIFO. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param FIFONumber: FIFO to release, CAN_FIFO0 or CAN_FIFO1. + * @retval None. + */ +void CAN_FIFORelease(CAN_TypeDef* CANx, uint8_t FIFONumber) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_FIFO(FIFONumber)); + /* Release FIFO0 */ + if (FIFONumber == CAN_FIFO0) + { + CANx->RF0R |= CAN_RF0R_RFOM0; + } + /* Release FIFO1 */ + else /* FIFONumber == CAN_FIFO1 */ + { + CANx->RF1R |= CAN_RF1R_RFOM1; + } +} + +/** + * @brief Returns the number of pending messages. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param FIFONumber: Receive FIFO number, CAN_FIFO0 or CAN_FIFO1. + * @retval NbMessage : which is the number of pending message. + */ +uint8_t CAN_MessagePending(CAN_TypeDef* CANx, uint8_t FIFONumber) +{ + uint8_t message_pending=0; + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_FIFO(FIFONumber)); + if (FIFONumber == CAN_FIFO0) + { + message_pending = (uint8_t)(CANx->RF0R&(uint32_t)0x03); + } + else if (FIFONumber == CAN_FIFO1) + { + message_pending = (uint8_t)(CANx->RF1R&(uint32_t)0x03); + } + else + { + message_pending = 0; + } + return message_pending; +} + + +/** + * @brief Select the CAN Operation mode. + * @param CAN_OperatingMode : CAN Operating Mode. This parameter can be one + * of @ref CAN_OperatingMode_TypeDef enumeration. + * @retval status of the requested mode which can be + * - CAN_ModeStatus_Failed CAN failed entering the specific mode + * - CAN_ModeStatus_Success CAN Succeed entering the specific mode + + */ +uint8_t CAN_OperatingModeRequest(CAN_TypeDef* CANx, uint8_t CAN_OperatingMode) +{ + uint8_t status = CAN_ModeStatus_Failed; + + /* Timeout for INAK or also for SLAK bits*/ + uint32_t timeout = INAK_TIMEOUT; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_OPERATING_MODE(CAN_OperatingMode)); + + if (CAN_OperatingMode == CAN_OperatingMode_Initialization) + { + /* Request initialisation */ + CANx->MCR = (uint32_t)((CANx->MCR & (uint32_t)(~(uint32_t)CAN_MCR_SLEEP)) | CAN_MCR_INRQ); + + /* Wait the acknowledge */ + while (((CANx->MSR & CAN_MODE_MASK) != CAN_MSR_INAK) && (timeout != 0)) + { + timeout--; + } + if ((CANx->MSR & CAN_MODE_MASK) != CAN_MSR_INAK) + { + status = CAN_ModeStatus_Failed; + } + else + { + status = CAN_ModeStatus_Success; + } + } + else if (CAN_OperatingMode == CAN_OperatingMode_Normal) + { + /* Request leave initialisation and sleep mode and enter Normal mode */ + CANx->MCR &= (uint32_t)(~(CAN_MCR_SLEEP|CAN_MCR_INRQ)); + + /* Wait the acknowledge */ + while (((CANx->MSR & CAN_MODE_MASK) != 0) && (timeout!=0)) + { + timeout--; + } + if ((CANx->MSR & CAN_MODE_MASK) != 0) + { + status = CAN_ModeStatus_Failed; + } + else + { + status = CAN_ModeStatus_Success; + } + } + else if (CAN_OperatingMode == CAN_OperatingMode_Sleep) + { + /* Request Sleep mode */ + CANx->MCR = (uint32_t)((CANx->MCR & (uint32_t)(~(uint32_t)CAN_MCR_INRQ)) | CAN_MCR_SLEEP); + + /* Wait the acknowledge */ + while (((CANx->MSR & CAN_MODE_MASK) != CAN_MSR_SLAK) && (timeout!=0)) + { + timeout--; + } + if ((CANx->MSR & CAN_MODE_MASK) != CAN_MSR_SLAK) + { + status = CAN_ModeStatus_Failed; + } + else + { + status = CAN_ModeStatus_Success; + } + } + else + { + status = CAN_ModeStatus_Failed; + } + + return (uint8_t) status; +} + +/** + * @brief Enters the low power mode. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @retval status: CAN_Sleep_Ok if sleep entered, CAN_Sleep_Failed in an + * other case. + */ +uint8_t CAN_Sleep(CAN_TypeDef* CANx) +{ + uint8_t sleepstatus = CAN_Sleep_Failed; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + + /* Request Sleep mode */ + CANx->MCR = (((CANx->MCR) & (uint32_t)(~(uint32_t)CAN_MCR_INRQ)) | CAN_MCR_SLEEP); + + /* Sleep mode status */ + if ((CANx->MSR & (CAN_MSR_SLAK|CAN_MSR_INAK)) == CAN_MSR_SLAK) + { + /* Sleep mode not entered */ + sleepstatus = CAN_Sleep_Ok; + } + /* return sleep mode status */ + return (uint8_t)sleepstatus; +} + +/** + * @brief Wakes the CAN up. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @retval status: CAN_WakeUp_Ok if sleep mode left, CAN_WakeUp_Failed in an + * other case. + */ +uint8_t CAN_WakeUp(CAN_TypeDef* CANx) +{ + uint32_t wait_slak = SLAK_TIMEOUT; + uint8_t wakeupstatus = CAN_WakeUp_Failed; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + + /* Wake up request */ + CANx->MCR &= ~(uint32_t)CAN_MCR_SLEEP; + + /* Sleep mode status */ + while(((CANx->MSR & CAN_MSR_SLAK) == CAN_MSR_SLAK)&&(wait_slak!=0x00)) + { + wait_slak--; + } + if((CANx->MSR & CAN_MSR_SLAK) != CAN_MSR_SLAK) + { + /* wake up done : Sleep mode exited */ + wakeupstatus = CAN_WakeUp_Ok; + } + /* return wakeup status */ + return (uint8_t)wakeupstatus; +} + + +/** + * @brief Returns the CANx's last error code (LEC). + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @retval CAN_ErrorCode: specifies the Error code : + * - CAN_ERRORCODE_NoErr No Error + * - CAN_ERRORCODE_StuffErr Stuff Error + * - CAN_ERRORCODE_FormErr Form Error + * - CAN_ERRORCODE_ACKErr Acknowledgment Error + * - CAN_ERRORCODE_BitRecessiveErr Bit Recessive Error + * - CAN_ERRORCODE_BitDominantErr Bit Dominant Error + * - CAN_ERRORCODE_CRCErr CRC Error + * - CAN_ERRORCODE_SoftwareSetErr Software Set Error + */ + +uint8_t CAN_GetLastErrorCode(CAN_TypeDef* CANx) +{ + uint8_t errorcode=0; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + + /* Get the error code*/ + errorcode = (((uint8_t)CANx->ESR) & (uint8_t)CAN_ESR_LEC); + + /* Return the error code*/ + return errorcode; +} +/** + * @brief Returns the CANx Receive Error Counter (REC). + * @note In case of an error during reception, this counter is incremented + * by 1 or by 8 depending on the error condition as defined by the CAN + * standard. After every successful reception, the counter is + * decremented by 1 or reset to 120 if its value was higher than 128. + * When the counter value exceeds 127, the CAN controller enters the + * error passive state. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @retval CAN Receive Error Counter. + */ +uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef* CANx) +{ + uint8_t counter=0; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + + /* Get the Receive Error Counter*/ + counter = (uint8_t)((CANx->ESR & CAN_ESR_REC)>> 24); + + /* Return the Receive Error Counter*/ + return counter; +} + + +/** + * @brief Returns the LSB of the 9-bit CANx Transmit Error Counter(TEC). + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @retval LSB of the 9-bit CAN Transmit Error Counter. + */ +uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef* CANx) +{ + uint8_t counter=0; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + + /* Get the LSB of the 9-bit CANx Transmit Error Counter(TEC) */ + counter = (uint8_t)((CANx->ESR & CAN_ESR_TEC)>> 16); + + /* Return the LSB of the 9-bit CANx Transmit Error Counter(TEC) */ + return counter; +} + + +/** + * @brief Enables or disables the specified CANx interrupts. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param CAN_IT: specifies the CAN interrupt sources to be enabled or disabled. + * This parameter can be: + * - CAN_IT_TME, + * - CAN_IT_FMP0, + * - CAN_IT_FF0, + * - CAN_IT_FOV0, + * - CAN_IT_FMP1, + * - CAN_IT_FF1, + * - CAN_IT_FOV1, + * - CAN_IT_EWG, + * - CAN_IT_EPV, + * - CAN_IT_LEC, + * - CAN_IT_ERR, + * - CAN_IT_WKU or + * - CAN_IT_SLK. + * @param NewState: new state of the CAN interrupts. + * This parameter can be: ENABLE or DISABLE. + * @retval None. + */ +void CAN_ITConfig(CAN_TypeDef* CANx, uint32_t CAN_IT, FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_IT(CAN_IT)); + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + if (NewState != DISABLE) + { + /* Enable the selected CANx interrupt */ + CANx->IER |= CAN_IT; + } + else + { + /* Disable the selected CANx interrupt */ + CANx->IER &= ~CAN_IT; + } +} +/** + * @brief Checks whether the specified CAN flag is set or not. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param CAN_FLAG: specifies the flag to check. + * This parameter can be one of the following flags: + * - CAN_FLAG_EWG + * - CAN_FLAG_EPV + * - CAN_FLAG_BOF + * - CAN_FLAG_RQCP0 + * - CAN_FLAG_RQCP1 + * - CAN_FLAG_RQCP2 + * - CAN_FLAG_FMP1 + * - CAN_FLAG_FF1 + * - CAN_FLAG_FOV1 + * - CAN_FLAG_FMP0 + * - CAN_FLAG_FF0 + * - CAN_FLAG_FOV0 + * - CAN_FLAG_WKU + * - CAN_FLAG_SLAK + * - CAN_FLAG_LEC + * @retval The new state of CAN_FLAG (SET or RESET). + */ +FlagStatus CAN_GetFlagStatus(CAN_TypeDef* CANx, uint32_t CAN_FLAG) +{ + FlagStatus bitstatus = RESET; + + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_GET_FLAG(CAN_FLAG)); + + + if((CAN_FLAG & CAN_FLAGS_ESR) != (uint32_t)RESET) + { + /* Check the status of the specified CAN flag */ + if ((CANx->ESR & (CAN_FLAG & 0x000FFFFF)) != (uint32_t)RESET) + { + /* CAN_FLAG is set */ + bitstatus = SET; + } + else + { + /* CAN_FLAG is reset */ + bitstatus = RESET; + } + } + else if((CAN_FLAG & CAN_FLAGS_MSR) != (uint32_t)RESET) + { + /* Check the status of the specified CAN flag */ + if ((CANx->MSR & (CAN_FLAG & 0x000FFFFF)) != (uint32_t)RESET) + { + /* CAN_FLAG is set */ + bitstatus = SET; + } + else + { + /* CAN_FLAG is reset */ + bitstatus = RESET; + } + } + else if((CAN_FLAG & CAN_FLAGS_TSR) != (uint32_t)RESET) + { + /* Check the status of the specified CAN flag */ + if ((CANx->TSR & (CAN_FLAG & 0x000FFFFF)) != (uint32_t)RESET) + { + /* CAN_FLAG is set */ + bitstatus = SET; + } + else + { + /* CAN_FLAG is reset */ + bitstatus = RESET; + } + } + else if((CAN_FLAG & CAN_FLAGS_RF0R) != (uint32_t)RESET) + { + /* Check the status of the specified CAN flag */ + if ((CANx->RF0R & (CAN_FLAG & 0x000FFFFF)) != (uint32_t)RESET) + { + /* CAN_FLAG is set */ + bitstatus = SET; + } + else + { + /* CAN_FLAG is reset */ + bitstatus = RESET; + } + } + else /* If(CAN_FLAG & CAN_FLAGS_RF1R != (uint32_t)RESET) */ + { + /* Check the status of the specified CAN flag */ + if ((uint32_t)(CANx->RF1R & (CAN_FLAG & 0x000FFFFF)) != (uint32_t)RESET) + { + /* CAN_FLAG is set */ + bitstatus = SET; + } + else + { + /* CAN_FLAG is reset */ + bitstatus = RESET; + } + } + /* Return the CAN_FLAG status */ + return bitstatus; +} + +/** + * @brief Clears the CAN's pending flags. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param CAN_FLAG: specifies the flag to clear. + * This parameter can be one of the following flags: + * - CAN_FLAG_RQCP0 + * - CAN_FLAG_RQCP1 + * - CAN_FLAG_RQCP2 + * - CAN_FLAG_FF1 + * - CAN_FLAG_FOV1 + * - CAN_FLAG_FF0 + * - CAN_FLAG_FOV0 + * - CAN_FLAG_WKU + * - CAN_FLAG_SLAK + * - CAN_FLAG_LEC + * @retval None. + */ +void CAN_ClearFlag(CAN_TypeDef* CANx, uint32_t CAN_FLAG) +{ + uint32_t flagtmp=0; + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_CLEAR_FLAG(CAN_FLAG)); + + if (CAN_FLAG == CAN_FLAG_LEC) /* ESR register */ + { + /* Clear the selected CAN flags */ + CANx->ESR = (uint32_t)RESET; + } + else /* MSR or TSR or RF0R or RF1R */ + { + flagtmp = CAN_FLAG & 0x000FFFFF; + + if ((CAN_FLAG & CAN_FLAGS_RF0R)!=(uint32_t)RESET) + { + /* Receive Flags */ + CANx->RF0R = (uint32_t)(flagtmp); + } + else if ((CAN_FLAG & CAN_FLAGS_RF1R)!=(uint32_t)RESET) + { + /* Receive Flags */ + CANx->RF1R = (uint32_t)(flagtmp); + } + else if ((CAN_FLAG & CAN_FLAGS_TSR)!=(uint32_t)RESET) + { + /* Transmit Flags */ + CANx->TSR = (uint32_t)(flagtmp); + } + else /* If((CAN_FLAG & CAN_FLAGS_MSR)!=(uint32_t)RESET) */ + { + /* Operating mode Flags */ + CANx->MSR = (uint32_t)(flagtmp); + } + } +} + +/** + * @brief Checks whether the specified CANx interrupt has occurred or not. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param CAN_IT: specifies the CAN interrupt source to check. + * This parameter can be one of the following flags: + * - CAN_IT_TME + * - CAN_IT_FMP0 + * - CAN_IT_FF0 + * - CAN_IT_FOV0 + * - CAN_IT_FMP1 + * - CAN_IT_FF1 + * - CAN_IT_FOV1 + * - CAN_IT_WKU + * - CAN_IT_SLK + * - CAN_IT_EWG + * - CAN_IT_EPV + * - CAN_IT_BOF + * - CAN_IT_LEC + * - CAN_IT_ERR + * @retval The current state of CAN_IT (SET or RESET). + */ +ITStatus CAN_GetITStatus(CAN_TypeDef* CANx, uint32_t CAN_IT) +{ + ITStatus itstatus = RESET; + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_IT(CAN_IT)); + + /* check the enable interrupt bit */ + if((CANx->IER & CAN_IT) != RESET) + { + /* in case the Interrupt is enabled, .... */ + switch (CAN_IT) + { + case CAN_IT_TME: + /* Check CAN_TSR_RQCPx bits */ + itstatus = CheckITStatus(CANx->TSR, CAN_TSR_RQCP0|CAN_TSR_RQCP1|CAN_TSR_RQCP2); + break; + case CAN_IT_FMP0: + /* Check CAN_RF0R_FMP0 bit */ + itstatus = CheckITStatus(CANx->RF0R, CAN_RF0R_FMP0); + break; + case CAN_IT_FF0: + /* Check CAN_RF0R_FULL0 bit */ + itstatus = CheckITStatus(CANx->RF0R, CAN_RF0R_FULL0); + break; + case CAN_IT_FOV0: + /* Check CAN_RF0R_FOVR0 bit */ + itstatus = CheckITStatus(CANx->RF0R, CAN_RF0R_FOVR0); + break; + case CAN_IT_FMP1: + /* Check CAN_RF1R_FMP1 bit */ + itstatus = CheckITStatus(CANx->RF1R, CAN_RF1R_FMP1); + break; + case CAN_IT_FF1: + /* Check CAN_RF1R_FULL1 bit */ + itstatus = CheckITStatus(CANx->RF1R, CAN_RF1R_FULL1); + break; + case CAN_IT_FOV1: + /* Check CAN_RF1R_FOVR1 bit */ + itstatus = CheckITStatus(CANx->RF1R, CAN_RF1R_FOVR1); + break; + case CAN_IT_WKU: + /* Check CAN_MSR_WKUI bit */ + itstatus = CheckITStatus(CANx->MSR, CAN_MSR_WKUI); + break; + case CAN_IT_SLK: + /* Check CAN_MSR_SLAKI bit */ + itstatus = CheckITStatus(CANx->MSR, CAN_MSR_SLAKI); + break; + case CAN_IT_EWG: + /* Check CAN_ESR_EWGF bit */ + itstatus = CheckITStatus(CANx->ESR, CAN_ESR_EWGF); + break; + case CAN_IT_EPV: + /* Check CAN_ESR_EPVF bit */ + itstatus = CheckITStatus(CANx->ESR, CAN_ESR_EPVF); + break; + case CAN_IT_BOF: + /* Check CAN_ESR_BOFF bit */ + itstatus = CheckITStatus(CANx->ESR, CAN_ESR_BOFF); + break; + case CAN_IT_LEC: + /* Check CAN_ESR_LEC bit */ + itstatus = CheckITStatus(CANx->ESR, CAN_ESR_LEC); + break; + case CAN_IT_ERR: + /* Check CAN_MSR_ERRI bit */ + itstatus = CheckITStatus(CANx->MSR, CAN_MSR_ERRI); + break; + default : + /* in case of error, return RESET */ + itstatus = RESET; + break; + } + } + else + { + /* in case the Interrupt is not enabled, return RESET */ + itstatus = RESET; + } + + /* Return the CAN_IT status */ + return itstatus; +} + +/** + * @brief Clears the CANx's interrupt pending bits. + * @param CANx: where x can be 1 or 2 to to select the CAN peripheral. + * @param CAN_IT: specifies the interrupt pending bit to clear. + * - CAN_IT_TME + * - CAN_IT_FF0 + * - CAN_IT_FOV0 + * - CAN_IT_FF1 + * - CAN_IT_FOV1 + * - CAN_IT_WKU + * - CAN_IT_SLK + * - CAN_IT_EWG + * - CAN_IT_EPV + * - CAN_IT_BOF + * - CAN_IT_LEC + * - CAN_IT_ERR + * @retval None. + */ +void CAN_ClearITPendingBit(CAN_TypeDef* CANx, uint32_t CAN_IT) +{ + /* Check the parameters */ + assert_param(IS_CAN_ALL_PERIPH(CANx)); + assert_param(IS_CAN_CLEAR_IT(CAN_IT)); + + switch (CAN_IT) + { + case CAN_IT_TME: + /* Clear CAN_TSR_RQCPx (rc_w1)*/ + CANx->TSR = CAN_TSR_RQCP0|CAN_TSR_RQCP1|CAN_TSR_RQCP2; + break; + case CAN_IT_FF0: + /* Clear CAN_RF0R_FULL0 (rc_w1)*/ + CANx->RF0R = CAN_RF0R_FULL0; + break; + case CAN_IT_FOV0: + /* Clear CAN_RF0R_FOVR0 (rc_w1)*/ + CANx->RF0R = CAN_RF0R_FOVR0; + break; + case CAN_IT_FF1: + /* Clear CAN_RF1R_FULL1 (rc_w1)*/ + CANx->RF1R = CAN_RF1R_FULL1; + break; + case CAN_IT_FOV1: + /* Clear CAN_RF1R_FOVR1 (rc_w1)*/ + CANx->RF1R = CAN_RF1R_FOVR1; + break; + case CAN_IT_WKU: + /* Clear CAN_MSR_WKUI (rc_w1)*/ + CANx->MSR = CAN_MSR_WKUI; + break; + case CAN_IT_SLK: + /* Clear CAN_MSR_SLAKI (rc_w1)*/ + CANx->MSR = CAN_MSR_SLAKI; + break; + case CAN_IT_EWG: + /* Clear CAN_MSR_ERRI (rc_w1) */ + CANx->MSR = CAN_MSR_ERRI; + /* Note : the corresponding Flag is cleared by hardware depending + of the CAN Bus status*/ + break; + case CAN_IT_EPV: + /* Clear CAN_MSR_ERRI (rc_w1) */ + CANx->MSR = CAN_MSR_ERRI; + /* Note : the corresponding Flag is cleared by hardware depending + of the CAN Bus status*/ + break; + case CAN_IT_BOF: + /* Clear CAN_MSR_ERRI (rc_w1) */ + CANx->MSR = CAN_MSR_ERRI; + /* Note : the corresponding Flag is cleared by hardware depending + of the CAN Bus status*/ + break; + case CAN_IT_LEC: + /* Clear LEC bits */ + CANx->ESR = RESET; + /* Clear CAN_MSR_ERRI (rc_w1) */ + CANx->MSR = CAN_MSR_ERRI; + break; + case CAN_IT_ERR: + /*Clear LEC bits */ + CANx->ESR = RESET; + /* Clear CAN_MSR_ERRI (rc_w1) */ + CANx->MSR = CAN_MSR_ERRI; + /* Note : BOFF, EPVF and EWGF Flags are cleared by hardware depending + of the CAN Bus status*/ + break; + default : + break; + } +} + +/** + * @brief Checks whether the CAN interrupt has occurred or not. + * @param CAN_Reg: specifies the CAN interrupt register to check. + * @param It_Bit: specifies the interrupt source bit to check. + * @retval The new state of the CAN Interrupt (SET or RESET). + */ +static ITStatus CheckITStatus(uint32_t CAN_Reg, uint32_t It_Bit) +{ + ITStatus pendingbitstatus = RESET; + + if ((CAN_Reg & It_Bit) != (uint32_t)RESET) + { + /* CAN_IT is set */ + pendingbitstatus = SET; + } + else + { + /* CAN_IT is reset */ + pendingbitstatus = RESET; + } + return pendingbitstatus; +} + + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/3-5 GPIO_光敏传感器/Library/stm32f10x_can.h b/3-5 GPIO_光敏传感器/Library/stm32f10x_can.h new file mode 100644 index 0000000..648f747 --- /dev/null +++ b/3-5 GPIO_光敏传感器/Library/stm32f10x_can.h @@ -0,0 +1,697 @@ +/** + ****************************************************************************** + * @file stm32f10x_can.h + * @author MCD Application Team + * @version V3.5.0 + * @date 11-March-2011 + * @brief This file contains all the functions prototypes for the CAN 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. + * + *

© COPYRIGHT 2011 STMicroelectronics

+ ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CAN_H +#define __STM32F10x_CAN_H + +#ifdef __cplusplus + extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Driver + * @{ + */ + +/** @addtogroup CAN + * @{ + */ + +/** @defgroup CAN_Exported_Types + * @{ + */ + +#define IS_CAN_ALL_PERIPH(PERIPH) (((PERIPH) == CAN1) || \ + ((PERIPH) == CAN2)) + +/** + * @brief CAN init structure definition + */ + +typedef struct +{ + uint16_t CAN_Prescaler; /*!< Specifies the length of a time quantum. + It ranges from 1 to 1024. */ + + uint8_t CAN_Mode; /*!< Specifies the CAN operating mode. + This parameter can be a value of + @ref CAN_operating_mode */ + + uint8_t CAN_SJW; /*!< Specifies the maximum number of time quanta + the CAN hardware is allowed to lengthen or + shorten a bit to perform resynchronization. + This parameter can be a value of + @ref CAN_synchronisation_jump_width */ + + uint8_t CAN_BS1; /*!< Specifies the number of time quanta in Bit + Segment 1. This parameter can be a value of + @ref CAN_time_quantum_in_bit_segment_1 */ + + uint8_t CAN_BS2; /*!< Specifies the number of time quanta in Bit + Segment 2. + This parameter can be a value of + @ref CAN_time_quantum_in_bit_segment_2 */ + + FunctionalState CAN_TTCM; /*!< Enable or disable the time triggered + communication mode. This parameter can be set + either to ENABLE or DISABLE. */ + + FunctionalState CAN_ABOM; /*!< Enable or disable the automatic bus-off + management. This parameter can be set either + to ENABLE or DISABLE. */ + + FunctionalState CAN_AWUM; /*!< Enable or disable the automatic wake-up mode. + This parameter can be set either to ENABLE or + DISABLE. */ + + FunctionalState CAN_NART; /*!< Enable or disable the no-automatic + retransmission mode. This parameter can be + set either to ENABLE or DISABLE. */ + + FunctionalState CAN_RFLM; /*!< Enable or disable the Receive FIFO Locked mode. + This parameter can be set either to ENABLE + or DISABLE. */ + + FunctionalState CAN_TXFP; /*!< Enable or disable the transmit FIFO priority. + This parameter can be set either to ENABLE + or DISABLE. */ +} CAN_InitTypeDef; + +/** + * @brief CAN filter init structure definition + */ + +typedef struct +{ + uint16_t CAN_FilterIdHigh; /*!< Specifies the filter identification number (MSBs for a 32-bit + configuration, first one for a 16-bit configuration). + This parameter can be a value between 0x0000 and 0xFFFF */ + + uint16_t CAN_FilterIdLow; /*!< Specifies the filter identification number (LSBs for a 32-bit + configuration, second one for a 16-bit configuration). + This parameter can be a value between 0x0000 and 0xFFFF */ + + uint16_t CAN_FilterMaskIdHigh; /*!< Specifies the filter mask number or identification number, + according to the mode (MSBs for a 32-bit configuration, + first one for a 16-bit configuration). + This parameter can be a value between 0x0000 and 0xFFFF */ + + uint16_t CAN_FilterMaskIdLow; /*!< Specifies the filter mask number or identification number, + according to the mode (LSBs for a 32-bit configuration, + second one for a 16-bit configuration). + This parameter can be a value between 0x0000 and 0xFFFF */ + + uint16_t CAN_FilterFIFOAssignment; /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter. + This parameter can be a value of @ref CAN_filter_FIFO */ + + uint8_t CAN_FilterNumber; /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */ + + uint8_t CAN_FilterMode; /*!< Specifies the filter mode to be initialized. + This parameter can be a value of @ref CAN_filter_mode */ + + uint8_t CAN_FilterScale; /*!< Specifies the filter scale. + This parameter can be a value of @ref CAN_filter_scale */ + + FunctionalState CAN_FilterActivation; /*!< Enable or disable the filter. + This parameter can be set either to ENABLE or DISABLE. */ +} CAN_FilterInitTypeDef; + +/** + * @brief CAN Tx message structure definition + */ + +typedef struct +{ + uint32_t StdId; /*!< Specifies the standard identifier. + This parameter can be a value between 0 to 0x7FF. */ + + uint32_t ExtId; /*!< Specifies the extended identifier. + This parameter can be a value between 0 to 0x1FFFFFFF. */ + + uint8_t IDE; /*!< Specifies the type of identifier for the message that + will be transmitted. This parameter can be a value + of @ref CAN_identifier_type */ + + uint8_t RTR; /*!< Specifies the type of frame for the message that will + be transmitted. This parameter can be a value of + @ref CAN_remote_transmission_request */ + + uint8_t DLC; /*!< Specifies the length of the frame that will be + transmitted. This parameter can be a value between + 0 to 8 */ + + uint8_t Data[8]; /*!< Contains the data to be transmitted. It ranges from 0 + to 0xFF. */ +} CanTxMsg; + +/** + * @brief CAN Rx message structure definition + */ + +typedef struct +{ + uint32_t StdId; /*!< Specifies the standard identifier. + This parameter can be a value between 0 to 0x7FF. */ + + uint32_t ExtId; /*!< Specifies the extended identifier. + This parameter can be a value between 0 to 0x1FFFFFFF. */ + + uint8_t IDE; /*!< Specifies the type of identifier for the message that + will be received. This parameter can be a value of + @ref CAN_identifier_type */ + + uint8_t RTR; /*!< Specifies the type of frame for the received message. + This parameter can be a value of + @ref CAN_remote_transmission_request */ + + uint8_t DLC; /*!< Specifies the length of the frame that will be received. + This parameter can be a value between 0 to 8 */ + + uint8_t Data[8]; /*!< Contains the data to be received. It ranges from 0 to + 0xFF. */ + + uint8_t FMI; /*!< Specifies the index of the filter the message stored in + the mailbox passes through. This parameter can be a + value between 0 to 0xFF */ +} CanRxMsg; + +/** + * @} + */ + +/** @defgroup CAN_Exported_Constants + * @{ + */ + +/** @defgroup CAN_sleep_constants + * @{ + */ + +#define CAN_InitStatus_Failed ((uint8_t)0x00) /*!< CAN initialization failed */ +#define CAN_InitStatus_Success ((uint8_t)0x01) /*!< CAN initialization OK */ + +/** + * @} + */ + +/** @defgroup CAN_Mode + * @{ + */ + +#define CAN_Mode_Normal ((uint8_t)0x00) /*!< normal mode */ +#define CAN_Mode_LoopBack ((uint8_t)0x01) /*!< loopback mode */ +#define CAN_Mode_Silent ((uint8_t)0x02) /*!< silent mode */ +#define CAN_Mode_Silent_LoopBack ((uint8_t)0x03) /*!< loopback combined with silent mode */ + +#define IS_CAN_MODE(MODE) (((MODE) == CAN_Mode_Normal) || \ + ((MODE) == CAN_Mode_LoopBack)|| \ + ((MODE) == CAN_Mode_Silent) || \ + ((MODE) == CAN_Mode_Silent_LoopBack)) +/** + * @} + */ + + +/** + * @defgroup CAN_Operating_Mode + * @{ + */ +#define CAN_OperatingMode_Initialization ((uint8_t)0x00) /*!< Initialization mode */ +#define CAN_OperatingMode_Normal ((uint8_t)0x01) /*!< Normal mode */ +#define CAN_OperatingMode_Sleep ((uint8_t)0x02) /*!< sleep mode */ + + +#define IS_CAN_OPERATING_MODE(MODE) (((MODE) == CAN_OperatingMode_Initialization) ||\ + ((MODE) == CAN_OperatingMode_Normal)|| \ + ((MODE) == CAN_OperatingMode_Sleep)) +/** + * @} + */ + +/** + * @defgroup CAN_Mode_Status + * @{ + */ + +#define CAN_ModeStatus_Failed ((uint8_t)0x00) /*!< CAN entering the specific mode failed */ +#define CAN_ModeStatus_Success ((uint8_t)!CAN_ModeStatus_Failed) /*!< CAN entering the specific mode Succeed */ + + +/** + * @} + */ + +/** @defgroup CAN_synchronisation_jump_width + * @{ + */ + +#define CAN_SJW_1tq ((uint8_t)0x00) /*!< 1 time quantum */ +#define CAN_SJW_2tq ((uint8_t)0x01) /*!< 2 time quantum */ +#define CAN_SJW_3tq ((uint8_t)0x02) /*!< 3 time quantum */ +#define CAN_SJW_4tq ((uint8_t)0x03) /*!< 4 time quantum */ + +#define IS_CAN_SJW(SJW) (((SJW) == CAN_SJW_1tq) || ((SJW) == CAN_SJW_2tq)|| \ + ((SJW) == CAN_SJW_3tq) || ((SJW) == CAN_SJW_4tq)) +/** + * @} + */ + +/** @defgroup CAN_time_quantum_in_bit_segment_1 + * @{ + */ + +#define CAN_BS1_1tq ((uint8_t)0x00) /*!< 1 time quantum */ +#define CAN_BS1_2tq ((uint8_t)0x01) /*!< 2 time quantum */ +#define CAN_BS1_3tq ((uint8_t)0x02) /*!< 3 time quantum */ +#define CAN_BS1_4tq ((uint8_t)0x03) /*!< 4 time quantum */ +#define CAN_BS1_5tq ((uint8_t)0x04) /*!< 5 time quantum */ +#define CAN_BS1_6tq ((uint8_t)0x05) /*!< 6 time quantum */ +#define CAN_BS1_7tq ((uint8_t)0x06) /*!< 7 time quantum */ +#define CAN_BS1_8tq ((uint8_t)0x07) /*!< 8 time quantum */ +#define CAN_BS1_9tq ((uint8_t)0x08) /*!< 9 time quantum */ +#define CAN_BS1_10tq ((uint8_t)0x09) /*!< 10 time quantum */ +#define CAN_BS1_11tq ((uint8_t)0x0A) /*!< 11 time quantum */ +#define CAN_BS1_12tq ((uint8_t)0x0B) /*!< 12 time quantum */ +#define CAN_BS1_13tq ((uint8_t)0x0C) /*!< 13 time quantum */ +#define CAN_BS1_14tq ((uint8_t)0x0D) /*!< 14 time quantum */ +#define CAN_BS1_15tq ((uint8_t)0x0E) /*!< 15 time quantum */ +#define CAN_BS1_16tq ((uint8_t)0x0F) /*!< 16 time quantum */ + +#define IS_CAN_BS1(BS1) ((BS1) <= CAN_BS1_16tq) +/** + * @} + */ + +/** @defgroup CAN_time_quantum_in_bit_segment_2 + * @{ + */ + +#define CAN_BS2_1tq ((uint8_t)0x00) /*!< 1 time quantum */ +#define CAN_BS2_2tq ((uint8_t)0x01) /*!< 2 time quantum */ +#define CAN_BS2_3tq ((uint8_t)0x02) /*!< 3 time quantum */ +#define CAN_BS2_4tq ((uint8_t)0x03) /*!< 4 time quantum */ +#define CAN_BS2_5tq ((uint8_t)0x04) /*!< 5 time quantum */ +#define CAN_BS2_6tq ((uint8_t)0x05) /*!< 6 time quantum */ +#define CAN_BS2_7tq ((uint8_t)0x06) /*!< 7 time quantum */ +#define CAN_BS2_8tq ((uint8_t)0x07) /*!< 8 time quantum */ + +#define IS_CAN_BS2(BS2) ((BS2) <= CAN_BS2_8tq) + +/** + * @} + */ + +/** @defgroup CAN_clock_prescaler + * @{ + */ + +#define IS_CAN_PRESCALER(PRESCALER) (((PRESCALER) >= 1) && ((PRESCALER) <= 1024)) + +/** + * @} + */ + +/** @defgroup CAN_filter_number + * @{ + */ +#ifndef STM32F10X_CL + #define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 13) +#else + #define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 27) +#endif /* STM32F10X_CL */ +/** + * @} + */ + +/** @defgroup CAN_filter_mode + * @{ + */ + +#define CAN_FilterMode_IdMask ((uint8_t)0x00) /*!< identifier/mask mode */ +#define CAN_FilterMode_IdList ((uint8_t)0x01) /*!< identifier list mode */ + +#define IS_CAN_FILTER_MODE(MODE) (((MODE) == CAN_FilterMode_IdMask) || \ + ((MODE) == CAN_FilterMode_IdList)) +/** + * @} + */ + +/** @defgroup CAN_filter_scale + * @{ + */ + +#define CAN_FilterScale_16bit ((uint8_t)0x00) /*!< Two 16-bit filters */ +#define CAN_FilterScale_32bit ((uint8_t)0x01) /*!< One 32-bit filter */ + +#define IS_CAN_FILTER_SCALE(SCALE) (((SCALE) == CAN_FilterScale_16bit) || \ + ((SCALE) == CAN_FilterScale_32bit)) + +/** + * @} + */ + +/** @defgroup CAN_filter_FIFO + * @{ + */ + +#define CAN_Filter_FIFO0 ((uint8_t)0x00) /*!< Filter FIFO 0 assignment for filter x */ +#define CAN_Filter_FIFO1 ((uint8_t)0x01) /*!< Filter FIFO 1 assignment for filter x */ +#define IS_CAN_FILTER_FIFO(FIFO) (((FIFO) == CAN_FilterFIFO0) || \ + ((FIFO) == CAN_FilterFIFO1)) +/** + * @} + */ + +/** @defgroup Start_bank_filter_for_slave_CAN + * @{ + */ +#define IS_CAN_BANKNUMBER(BANKNUMBER) (((BANKNUMBER) >= 1) && ((BANKNUMBER) <= 27)) +/** + * @} + */ + +/** @defgroup CAN_Tx + * @{ + */ + +#define IS_CAN_TRANSMITMAILBOX(TRANSMITMAILBOX) ((TRANSMITMAILBOX) <= ((uint8_t)0x02)) +#define IS_CAN_STDID(STDID) ((STDID) <= ((uint32_t)0x7FF)) +#define IS_CAN_EXTID(EXTID) ((EXTID) <= ((uint32_t)0x1FFFFFFF)) +#define IS_CAN_DLC(DLC) ((DLC) <= ((uint8_t)0x08)) + +/** + * @} + */ + +/** @defgroup CAN_identifier_type + * @{ + */ + +#define CAN_Id_Standard ((uint32_t)0x00000000) /*!< Standard Id */ +#define CAN_Id_Extended ((uint32_t)0x00000004) /*!< Extended Id */ +#define IS_CAN_IDTYPE(IDTYPE) (((IDTYPE) == CAN_Id_Standard) || \ + ((IDTYPE) == CAN_Id_Extended)) +/** + * @} + */ + +/** @defgroup CAN_remote_transmission_request + * @{ + */ + +#define CAN_RTR_Data ((uint32_t)0x00000000) /*!< Data frame */ +#define CAN_RTR_Remote ((uint32_t)0x00000002) /*!< Remote frame */ +#define IS_CAN_RTR(RTR) (((RTR) == CAN_RTR_Data) || ((RTR) == CAN_RTR_Remote)) + +/** + * @} + */ + +/** @defgroup CAN_transmit_constants + * @{ + */ + +#define CAN_TxStatus_Failed ((uint8_t)0x00)/*!< CAN transmission failed */ +#define CAN_TxStatus_Ok ((uint8_t)0x01) /*!< CAN transmission succeeded */ +#define CAN_TxStatus_Pending ((uint8_t)0x02) /*!< CAN transmission pending */ +#define CAN_TxStatus_NoMailBox ((uint8_t)0x04) /*!< CAN cell did not provide an empty mailbox */ + +/** + * @} + */ + +/** @defgroup CAN_receive_FIFO_number_constants + * @{ + */ + +#define CAN_FIFO0 ((uint8_t)0x00) /*!< CAN FIFO 0 used to receive */ +#define CAN_FIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used to receive */ + +#define IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) || ((FIFO) == CAN_FIFO1)) + +/** + * @} + */ + +/** @defgroup CAN_sleep_constants + * @{ + */ + +#define CAN_Sleep_Failed ((uint8_t)0x00) /*!< CAN did not enter the sleep mode */ +#define CAN_Sleep_Ok ((uint8_t)0x01) /*!< CAN entered the sleep mode */ + +/** + * @} + */ + +/** @defgroup CAN_wake_up_constants + * @{ + */ + +#define CAN_WakeUp_Failed ((uint8_t)0x00) /*!< CAN did not leave the sleep mode */ +#define CAN_WakeUp_Ok ((uint8_t)0x01) /*!< CAN leaved the sleep mode */ + +/** + * @} + */ + +/** + * @defgroup CAN_Error_Code_constants + * @{ + */ + +#define CAN_ErrorCode_NoErr ((uint8_t)0x00) /*!< No Error */ +#define CAN_ErrorCode_StuffErr ((uint8_t)0x10) /*!< Stuff Error */ +#define CAN_ErrorCode_FormErr ((uint8_t)0x20) /*!< Form Error */ +#define CAN_ErrorCode_ACKErr ((uint8_t)0x30) /*!< Acknowledgment Error */ +#define CAN_ErrorCode_BitRecessiveErr ((uint8_t)0x40) /*!< Bit Recessive Error */ +#define CAN_ErrorCode_BitDominantErr ((uint8_t)0x50) /*!< Bit Dominant Error */ +#define CAN_ErrorCode_CRCErr ((uint8_t)0x60) /*!< CRC Error */ +#define CAN_ErrorCode_SoftwareSetErr ((uint8_t)0x70) /*!< Software Set Error */ + + +/** + * @} + */ + +/** @defgroup CAN_flags + * @{ + */ +/* If the flag is 0x3XXXXXXX, it means that it can be used with CAN_GetFlagStatus() + and CAN_ClearFlag() functions. */ +/* If the flag is 0x1XXXXXXX, it means that it can only be used with CAN_GetFlagStatus() function. */ + +/* Transmit Flags */ +#define CAN_FLAG_RQCP0 ((uint32_t)0x38000001) /*!< Request MailBox0 Flag */ +#define CAN_FLAG_RQCP1 ((uint32_t)0x38000100) /*!< Request MailBox1 Flag */ +#define CAN_FLAG_RQCP2 ((uint32_t)0x38010000) /*!< Request MailBox2 Flag */ + +/* Receive Flags */ +#define CAN_FLAG_FMP0 ((uint32_t)0x12000003) /*!< FIFO 0 Message Pending Flag */ +#define CAN_FLAG_FF0 ((uint32_t)0x32000008) /*!< FIFO 0 Full Flag */ +#define CAN_FLAG_FOV0 ((uint32_t)0x32000010) /*!< FIFO 0 Overrun Flag */ +#define CAN_FLAG_FMP1 ((uint32_t)0x14000003) /*!< FIFO 1 Message Pending Flag */ +#define CAN_FLAG_FF1 ((uint32_t)0x34000008) /*!< FIFO 1 Full Flag */ +#define CAN_FLAG_FOV1 ((uint32_t)0x34000010) /*!< FIFO 1 Overrun Flag */ + +/* Operating Mode Flags */ +#define CAN_FLAG_WKU ((uint32_t)0x31000008) /*!< Wake up Flag */ +#define CAN_FLAG_SLAK ((uint32_t)0x31000012) /*!< Sleep acknowledge Flag */ +/* Note: When SLAK intterupt is disabled (SLKIE=0), no polling on SLAKI is possible. + In this case the SLAK bit can be polled.*/ + +/* Error Flags */ +#define CAN_FLAG_EWG ((uint32_t)0x10F00001) /*!< Error Warning Flag */ +#define CAN_FLAG_EPV ((uint32_t)0x10F00002) /*!< Error Passive Flag */ +#define CAN_FLAG_BOF ((uint32_t)0x10F00004) /*!< Bus-Off Flag */ +#define CAN_FLAG_LEC ((uint32_t)0x30F00070) /*!< Last error code Flag */ + +#define IS_CAN_GET_FLAG(FLAG) (((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_BOF) || \ + ((FLAG) == CAN_FLAG_EPV) || ((FLAG) == CAN_FLAG_EWG) || \ + ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_FOV0) || \ + ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FMP0) || \ + ((FLAG) == CAN_FLAG_FOV1) || ((FLAG) == CAN_FLAG_FF1) || \ + ((FLAG) == CAN_FLAG_FMP1) || ((FLAG) == CAN_FLAG_RQCP2) || \ + ((FLAG) == CAN_FLAG_RQCP1)|| ((FLAG) == CAN_FLAG_RQCP0) || \ + ((FLAG) == CAN_FLAG_SLAK )) + +#define IS_CAN_CLEAR_FLAG(FLAG)(((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_RQCP2) || \ + ((FLAG) == CAN_FLAG_RQCP1) || ((FLAG) == CAN_FLAG_RQCP0) || \ + ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FOV0) ||\ + ((FLAG) == CAN_FLAG_FF1) || ((FLAG) == CAN_FLAG_FOV1) || \ + ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_SLAK)) +/** + * @} + */ + + +/** @defgroup CAN_interrupts + * @{ + */ + + + +#define CAN_IT_TME ((uint32_t)0x00000001) /*!< Transmit mailbox empty Interrupt*/ + +/* Receive Interrupts */ +#define CAN_IT_FMP0 ((uint32_t)0x00000002) /*!< FIFO 0 message pending Interrupt*/ +#define CAN_IT_FF0 ((uint32_t)0x00000004) /*!< FIFO 0 full Interrupt*/ +#define CAN_IT_FOV0 ((uint32_t)0x00000008) /*!< FIFO 0 overrun Interrupt*/ +#define CAN_IT_FMP1 ((uint32_t)0x00000010) /*!< FIFO 1 message pending Interrupt*/ +#define CAN_IT_FF1 ((uint32_t)0x00000020) /*!< FIFO 1 full Interrupt*/ +#define CAN_IT_FOV1 ((uint32_t)0x00000040) /*!< FIFO 1 overrun Interrupt*/ + +/* Operating Mode Interrupts */ +#define CAN_IT_WKU ((uint32_t)0x00010000) /*!< Wake-up Interrupt*/ +#define CAN_IT_SLK ((uint32_t)0x00020000) /*!< Sleep acknowledge Interrupt*/ + +/* Error Interrupts */ +#define CAN_IT_EWG ((uint32_t)0x00000100) /*!< Error warning Interrupt*/ +#define CAN_IT_EPV ((uint32_t)0x00000200) /*!< Error passive Interrupt*/ +#define CAN_IT_BOF ((uint32_t)0x00000400) /*!< Bus-off Interrupt*/ +#define CAN_IT_LEC ((uint32_t)0x00000800) /*!< Last error code Interrupt*/ +#define CAN_IT_ERR ((uint32_t)0x00008000) /*!< Error Interrupt*/ + +/* Flags named as Interrupts : kept only for FW compatibility */ +#define CAN_IT_RQCP0 CAN_IT_TME +#define CAN_IT_RQCP1 CAN_IT_TME +#define CAN_IT_RQCP2 CAN_IT_TME + + +#define IS_CAN_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FMP0) ||\ + ((IT) == CAN_IT_FF0) || ((IT) == CAN_IT_FOV0) ||\ + ((IT) == CAN_IT_FMP1) || ((IT) == CAN_IT_FF1) ||\ + ((IT) == CAN_IT_FOV1) || ((IT) == CAN_IT_EWG) ||\ + ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\ + ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\ + ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK)) + +#define IS_CAN_CLEAR_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FF0) ||\ + ((IT) == CAN_IT_FOV0)|| ((IT) == CAN_IT_FF1) ||\ + ((IT) == CAN_IT_FOV1)|| ((IT) == CAN_IT_EWG) ||\ + ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\ + ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\ + ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK)) + +/** + * @} + */ + +/** @defgroup CAN_Legacy + * @{ + */ +#define CANINITFAILED CAN_InitStatus_Failed +#define CANINITOK CAN_InitStatus_Success +#define CAN_FilterFIFO0 CAN_Filter_FIFO0 +#define CAN_FilterFIFO1 CAN_Filter_FIFO1 +#define CAN_ID_STD CAN_Id_Standard +#define CAN_ID_EXT CAN_Id_Extended +#define CAN_RTR_DATA CAN_RTR_Data +#define CAN_RTR_REMOTE CAN_RTR_Remote +#define CANTXFAILE CAN_TxStatus_Failed +#define CANTXOK CAN_TxStatus_Ok +#define CANTXPENDING CAN_TxStatus_Pending +#define CAN_NO_MB CAN_TxStatus_NoMailBox +#define CANSLEEPFAILED CAN_Sleep_Failed +#define CANSLEEPOK CAN_Sleep_Ok +#define CANWAKEUPFAILED CAN_WakeUp_Failed +#define CANWAKEUPOK CAN_WakeUp_Ok + +/** + * @} + */ + +/** + * @} + */ + +/** @defgroup CAN_Exported_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup CAN_Exported_Functions + * @{ + */ +/* Function used to set the CAN configuration to the default reset state *****/ +void CAN_DeInit(CAN_TypeDef* CANx); + +/* Initialization and Configuration functions *********************************/ +uint8_t CAN_Init(CAN_TypeDef* CANx, CAN_InitTypeDef* CAN_InitStruct); +void CAN_FilterInit(CAN_FilterInitTypeDef* CAN_FilterInitStruct); +void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct); +void CAN_SlaveStartBank(uint8_t CAN_BankNumber); +void CAN_DBGFreeze(CAN_TypeDef* CANx, FunctionalState NewState); +void CAN_TTComModeCmd(CAN_TypeDef* CANx, FunctionalState NewState); + +/* Transmit functions *********************************************************/ +uint8_t CAN_Transmit(CAN_TypeDef* CANx, CanTxMsg* TxMessage); +uint8_t CAN_TransmitStatus(CAN_TypeDef* CANx, uint8_t TransmitMailbox); +void CAN_CancelTransmit(CAN_TypeDef* CANx, uint8_t Mailbox); + +/* Receive functions **********************************************************/ +void CAN_Receive(CAN_TypeDef* CANx, uint8_t FIFONumber, CanRxMsg* RxMessage); +void CAN_FIFORelease(CAN_TypeDef* CANx, uint8_t FIFONumber); +uint8_t CAN_MessagePending(CAN_TypeDef* CANx, uint8_t FIFONumber); + + +/* Operation modes functions **************************************************/ +uint8_t CAN_OperatingModeRequest(CAN_TypeDef* CANx, uint8_t CAN_OperatingMode); +uint8_t CAN_Sleep(CAN_TypeDef* CANx); +uint8_t CAN_WakeUp(CAN_TypeDef* CANx); + +/* Error management functions *************************************************/ +uint8_t CAN_GetLastErrorCode(CAN_TypeDef* CANx); +uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef* CANx); +uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef* CANx); + +/* Interrupts and flags management functions **********************************/ +void CAN_ITConfig(CAN_TypeDef* CANx, uint32_t CAN_IT, FunctionalState NewState); +FlagStatus CAN_GetFlagStatus(CAN_TypeDef* CANx, uint32_t CAN_FLAG); +void CAN_ClearFlag(CAN_TypeDef* CANx, uint32_t CAN_FLAG); +ITStatus CAN_GetITStatus(CAN_TypeDef* CANx, uint32_t CAN_IT); +void CAN_ClearITPendingBit(CAN_TypeDef* CANx, uint32_t CAN_IT); + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F10x_CAN_H */ +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/3-5 GPIO_光敏传感器/Library/stm32f10x_cec.c b/3-5 GPIO_光敏传感器/Library/stm32f10x_cec.c new file mode 100644 index 0000000..08b501a --- /dev/null +++ b/3-5 GPIO_光敏传感器/Library/stm32f10x_cec.c @@ -0,0 +1,433 @@ +/** + ****************************************************************************** + * @file stm32f10x_cec.c + * @author MCD Application Team + * @version V3.5.0 + * @date 11-March-2011 + * @brief This file provides all the CEC 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. + * + *

© COPYRIGHT 2011 STMicroelectronics

+ ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_cec.h" +#include "stm32f10x_rcc.h" + +/** @addtogroup STM32F10x_StdPeriph_Driver + * @{ + */ + +/** @defgroup CEC + * @brief CEC driver modules + * @{ + */ + +/** @defgroup CEC_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + + +/** @defgroup CEC_Private_Defines + * @{ + */ + +/* ------------ CEC registers bit address in the alias region ----------- */ +#define CEC_OFFSET (CEC_BASE - PERIPH_BASE) + +/* --- CFGR Register ---*/ + +/* Alias word address of PE bit */ +#define CFGR_OFFSET (CEC_OFFSET + 0x00) +#define PE_BitNumber 0x00 +#define CFGR_PE_BB (PERIPH_BB_BASE + (CFGR_OFFSET * 32) + (PE_BitNumber * 4)) + +/* Alias word address of IE bit */ +#define IE_BitNumber 0x01 +#define CFGR_IE_BB (PERIPH_BB_BASE + (CFGR_OFFSET * 32) + (IE_BitNumber * 4)) + +/* --- CSR Register ---*/ + +/* Alias word address of TSOM bit */ +#define CSR_OFFSET (CEC_OFFSET + 0x10) +#define TSOM_BitNumber 0x00 +#define CSR_TSOM_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TSOM_BitNumber * 4)) + +/* Alias word address of TEOM bit */ +#define TEOM_BitNumber 0x01 +#define CSR_TEOM_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TEOM_BitNumber * 4)) + +#define CFGR_CLEAR_Mask (uint8_t)(0xF3) /* CFGR register Mask */ +#define FLAG_Mask ((uint32_t)0x00FFFFFF) /* CEC FLAG mask */ + +/** + * @} + */ + + +/** @defgroup CEC_Private_Macros + * @{ + */ + +/** + * @} + */ + + +/** @defgroup CEC_Private_Variables + * @{ + */ + +/** + * @} + */ + + +/** @defgroup CEC_Private_FunctionPrototypes + * @{ + */ + +/** + * @} + */ + + +/** @defgroup CEC_Private_Functions + * @{ + */ + +/** + * @brief Deinitializes the CEC peripheral registers to their default reset + * values. + * @param None + * @retval None + */ +void CEC_DeInit(void) +{ + /* Enable CEC reset state */ + RCC_APB1PeriphResetCmd(RCC_APB1Periph_CEC, ENABLE); + /* Release CEC from reset state */ + RCC_APB1PeriphResetCmd(RCC_APB1Periph_CEC, DISABLE); +} + + +/** + * @brief Initializes the CEC peripheral according to the specified + * parameters in the CEC_InitStruct. + * @param CEC_InitStruct: pointer to an CEC_InitTypeDef structure that + * contains the configuration information for the specified + * CEC peripheral. + * @retval None + */ +void CEC_Init(CEC_InitTypeDef* CEC_InitStruct) +{ + uint16_t tmpreg = 0; + + /* Check the parameters */ + assert_param(IS_CEC_BIT_TIMING_ERROR_MODE(CEC_InitStruct->CEC_BitTimingMode)); + assert_param(IS_CEC_BIT_PERIOD_ERROR_MODE(CEC_InitStruct->CEC_BitPeriodMode)); + + /*---------------------------- CEC CFGR Configuration -----------------*/ + /* Get the CEC CFGR value */ + tmpreg = CEC->CFGR; + + /* Clear BTEM and BPEM bits */ + tmpreg &= CFGR_CLEAR_Mask; + + /* Configure CEC: Bit Timing Error and Bit Period Error */ + tmpreg |= (uint16_t)(CEC_InitStruct->CEC_BitTimingMode | CEC_InitStruct->CEC_BitPeriodMode); + + /* Write to CEC CFGR register*/ + CEC->CFGR = tmpreg; + +} + +/** + * @brief Enables or disables the specified CEC peripheral. + * @param NewState: new state of the CEC peripheral. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void CEC_Cmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + *(__IO uint32_t *) CFGR_PE_BB = (uint32_t)NewState; + + if(NewState == DISABLE) + { + /* Wait until the PE bit is cleared by hardware (Idle Line detected) */ + while((CEC->CFGR & CEC_CFGR_PE) != (uint32_t)RESET) + { + } + } +} + +/** + * @brief Enables or disables the CEC interrupt. + * @param NewState: new state of the CEC interrupt. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void CEC_ITConfig(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + *(__IO uint32_t *) CFGR_IE_BB = (uint32_t)NewState; +} + +/** + * @brief Defines the Own Address of the CEC device. + * @param CEC_OwnAddress: The CEC own address + * @retval None + */ +void CEC_OwnAddressConfig(uint8_t CEC_OwnAddress) +{ + /* Check the parameters */ + assert_param(IS_CEC_ADDRESS(CEC_OwnAddress)); + + /* Set the CEC own address */ + CEC->OAR = CEC_OwnAddress; +} + +/** + * @brief Sets the CEC prescaler value. + * @param CEC_Prescaler: CEC prescaler new value + * @retval None + */ +void CEC_SetPrescaler(uint16_t CEC_Prescaler) +{ + /* Check the parameters */ + assert_param(IS_CEC_PRESCALER(CEC_Prescaler)); + + /* Set the Prescaler value*/ + CEC->PRES = CEC_Prescaler; +} + +/** + * @brief Transmits single data through the CEC peripheral. + * @param Data: the data to transmit. + * @retval None + */ +void CEC_SendDataByte(uint8_t Data) +{ + /* Transmit Data */ + CEC->TXD = Data ; +} + + +/** + * @brief Returns the most recent received data by the CEC peripheral. + * @param None + * @retval The received data. + */ +uint8_t CEC_ReceiveDataByte(void) +{ + /* Receive Data */ + return (uint8_t)(CEC->RXD); +} + +/** + * @brief Starts a new message. + * @param None + * @retval None + */ +void CEC_StartOfMessage(void) +{ + /* Starts of new message */ + *(__IO uint32_t *) CSR_TSOM_BB = (uint32_t)0x1; +} + +/** + * @brief Transmits message with or without an EOM bit. + * @param NewState: new state of the CEC Tx End Of Message. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void CEC_EndOfMessageCmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + + /* The data byte will be transmitted with or without an EOM bit*/ + *(__IO uint32_t *) CSR_TEOM_BB = (uint32_t)NewState; +} + +/** + * @brief Gets the CEC flag status + * @param CEC_FLAG: specifies the CEC flag to check. + * This parameter can be one of the following values: + * @arg CEC_FLAG_BTE: Bit Timing Error + * @arg CEC_FLAG_BPE: Bit Period Error + * @arg CEC_FLAG_RBTFE: Rx Block Transfer Finished Error + * @arg CEC_FLAG_SBE: Start Bit Error + * @arg CEC_FLAG_ACKE: Block Acknowledge Error + * @arg CEC_FLAG_LINE: Line Error + * @arg CEC_FLAG_TBTFE: Tx Block Transfer Finished Error + * @arg CEC_FLAG_TEOM: Tx End Of Message + * @arg CEC_FLAG_TERR: Tx Error + * @arg CEC_FLAG_TBTRF: Tx Byte Transfer Request or Block Transfer Finished + * @arg CEC_FLAG_RSOM: Rx Start Of Message + * @arg CEC_FLAG_REOM: Rx End Of Message + * @arg CEC_FLAG_RERR: Rx Error + * @arg CEC_FLAG_RBTF: Rx Byte/Block Transfer Finished + * @retval The new state of CEC_FLAG (SET or RESET) + */ +FlagStatus CEC_GetFlagStatus(uint32_t CEC_FLAG) +{ + FlagStatus bitstatus = RESET; + uint32_t cecreg = 0, cecbase = 0; + + /* Check the parameters */ + assert_param(IS_CEC_GET_FLAG(CEC_FLAG)); + + /* Get the CEC peripheral base address */ + cecbase = (uint32_t)(CEC_BASE); + + /* Read flag register index */ + cecreg = CEC_FLAG >> 28; + + /* Get bit[23:0] of the flag */ + CEC_FLAG &= FLAG_Mask; + + if(cecreg != 0) + { + /* Flag in CEC ESR Register */ + CEC_FLAG = (uint32_t)(CEC_FLAG >> 16); + + /* Get the CEC ESR register address */ + cecbase += 0xC; + } + else + { + /* Get the CEC CSR register address */ + cecbase += 0x10; + } + + if(((*(__IO uint32_t *)cecbase) & CEC_FLAG) != (uint32_t)RESET) + { + /* CEC_FLAG is set */ + bitstatus = SET; + } + else + { + /* CEC_FLAG is reset */ + bitstatus = RESET; + } + + /* Return the CEC_FLAG status */ + return bitstatus; +} + +/** + * @brief Clears the CEC's pending flags. + * @param CEC_FLAG: specifies the flag to clear. + * This parameter can be any combination of the following values: + * @arg CEC_FLAG_TERR: Tx Error + * @arg CEC_FLAG_TBTRF: Tx Byte Transfer Request or Block Transfer Finished + * @arg CEC_FLAG_RSOM: Rx Start Of Message + * @arg CEC_FLAG_REOM: Rx End Of Message + * @arg CEC_FLAG_RERR: Rx Error + * @arg CEC_FLAG_RBTF: Rx Byte/Block Transfer Finished + * @retval None + */ +void CEC_ClearFlag(uint32_t CEC_FLAG) +{ + uint32_t tmp = 0x0; + + /* Check the parameters */ + assert_param(IS_CEC_CLEAR_FLAG(CEC_FLAG)); + + tmp = CEC->CSR & 0x2; + + /* Clear the selected CEC flags */ + CEC->CSR &= (uint32_t)(((~(uint32_t)CEC_FLAG) & 0xFFFFFFFC) | tmp); +} + +/** + * @brief Checks whether the specified CEC interrupt has occurred or not. + * @param CEC_IT: specifies the CEC interrupt source to check. + * This parameter can be one of the following values: + * @arg CEC_IT_TERR: Tx Error + * @arg CEC_IT_TBTF: Tx Block Transfer Finished + * @arg CEC_IT_RERR: Rx Error + * @arg CEC_IT_RBTF: Rx Block Transfer Finished + * @retval The new state of CEC_IT (SET or RESET). + */ +ITStatus CEC_GetITStatus(uint8_t CEC_IT) +{ + ITStatus bitstatus = RESET; + uint32_t enablestatus = 0; + + /* Check the parameters */ + assert_param(IS_CEC_GET_IT(CEC_IT)); + + /* Get the CEC IT enable bit status */ + enablestatus = (CEC->CFGR & (uint8_t)CEC_CFGR_IE) ; + + /* Check the status of the specified CEC interrupt */ + if (((CEC->CSR & CEC_IT) != (uint32_t)RESET) && enablestatus) + { + /* CEC_IT is set */ + bitstatus = SET; + } + else + { + /* CEC_IT is reset */ + bitstatus = RESET; + } + /* Return the CEC_IT status */ + return bitstatus; +} + +/** + * @brief Clears the CEC's interrupt pending bits. + * @param CEC_IT: specifies the CEC interrupt pending bit to clear. + * This parameter can be any combination of the following values: + * @arg CEC_IT_TERR: Tx Error + * @arg CEC_IT_TBTF: Tx Block Transfer Finished + * @arg CEC_IT_RERR: Rx Error + * @arg CEC_IT_RBTF: Rx Block Transfer Finished + * @retval None + */ +void CEC_ClearITPendingBit(uint16_t CEC_IT) +{ + uint32_t tmp = 0x0; + + /* Check the parameters */ + assert_param(IS_CEC_GET_IT(CEC_IT)); + + tmp = CEC->CSR & 0x2; + + /* Clear the selected CEC interrupt pending bits */ + CEC->CSR &= (uint32_t)(((~(uint32_t)CEC_IT) & 0xFFFFFFFC) | tmp); +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ diff --git a/3-5 GPIO_光敏传感器/Library/stm32f10x_cec.h b/3-5 GPIO_光敏传感器/Library/stm32f10x_cec.h new file mode 100644 index 0000000..a3f8fc7 --- /dev/null +++ b/3-5 GPIO_光敏传感器/Library/stm32f10x_cec.h @@ -0,0 +1,210 @@ +/** + ****************************************************************************** + * @file stm32f10x_cec.h + * @author MCD Application Team + * @version V3.5.0 + * @date 11-March-2011 + * @brief This file contains all the functions prototypes for the CEC 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. + * + *

© COPYRIGHT 2011 STMicroelectronics

+ ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F10x_CEC_H +#define __STM32F10x_CEC_H + +#ifdef __cplusplus + extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x.h" + +/** @addtogroup STM32F10x_StdPeriph_Driver + * @{ + */ + +/** @addtogroup CEC + * @{ + */ + + +/** @defgroup CEC_Exported_Types + * @{ + */ + +/** + * @brief CEC Init structure definition + */ +typedef struct +{ + uint16_t CEC_BitTimingMode; /*!< Configures the CEC Bit Timing Error Mode. + This parameter can be a value of @ref CEC_BitTiming_Mode */ + uint16_t CEC_BitPeriodMode; /*!< Configures the CEC Bit Period Error Mode. + This parameter can be a value of @ref CEC_BitPeriod_Mode */ +}CEC_InitTypeDef; + +/** + * @} + */ + +/** @defgroup CEC_Exported_Constants + * @{ + */ + +/** @defgroup CEC_BitTiming_Mode + * @{ + */ +#define CEC_BitTimingStdMode ((uint16_t)0x00) /*!< Bit timing error Standard Mode */ +#define CEC_BitTimingErrFreeMode CEC_CFGR_BTEM /*!< Bit timing error Free Mode */ + +#define IS_CEC_BIT_TIMING_ERROR_MODE(MODE) (((MODE) == CEC_BitTimingStdMode) || \ + ((MODE) == CEC_BitTimingErrFreeMode)) +/** + * @} + */ + +/** @defgroup CEC_BitPeriod_Mode + * @{ + */ +#define CEC_BitPeriodStdMode ((uint16_t)0x00) /*!< Bit period error Standard Mode */ +#define CEC_BitPeriodFlexibleMode CEC_CFGR_BPEM /*!< Bit period error Flexible Mode */ + +#define IS_CEC_BIT_PERIOD_ERROR_MODE(MODE) (((MODE) == CEC_BitPeriodStdMode) || \ + ((MODE) == CEC_BitPeriodFlexibleMode)) +/** + * @} + */ + + +/** @defgroup CEC_interrupts_definition + * @{ + */ +#define CEC_IT_TERR CEC_CSR_TERR +#define CEC_IT_TBTRF CEC_CSR_TBTRF +#define CEC_IT_RERR CEC_CSR_RERR +#define CEC_IT_RBTF CEC_CSR_RBTF +#define IS_CEC_GET_IT(IT) (((IT) == CEC_IT_TERR) || ((IT) == CEC_IT_TBTRF) || \ + ((IT) == CEC_IT_RERR) || ((IT) == CEC_IT_RBTF)) +/** + * @} + */ + + +/** @defgroup CEC_Own_Address + * @{ + */ +#define IS_CEC_ADDRESS(ADDRESS) ((ADDRESS) < 0x10) +/** + * @} + */ + +/** @defgroup CEC_Prescaler + * @{ + */ +#define IS_CEC_PRESCALER(PRESCALER) ((PRESCALER) <= 0x3FFF) + +/** + * @} + */ + +/** @defgroup CEC_flags_definition + * @{ + */ + +/** + * @brief ESR register flags + */ +#define CEC_FLAG_BTE ((uint32_t)0x10010000) +#define CEC_FLAG_BPE ((uint32_t)0x10020000) +#define CEC_FLAG_RBTFE ((uint32_t)0x10040000) +#define CEC_FLAG_SBE ((uint32_t)0x10080000) +#define CEC_FLAG_ACKE ((uint32_t)0x10100000) +#define CEC_FLAG_LINE ((uint32_t)0x10200000) +#define CEC_FLAG_TBTFE ((uint32_t)0x10400000) + +/** + * @brief CSR register flags + */ +#define CEC_FLAG_TEOM ((uint32_t)0x00000002) +#define CEC_FLAG_TERR ((uint32_t)0x00000004) +#define CEC_FLAG_TBTRF ((uint32_t)0x00000008) +#define CEC_FLAG_RSOM ((uint32_t)0x00000010) +#define CEC_FLAG_REOM ((uint32_t)0x00000020) +#define CEC_FLAG_RERR ((uint32_t)0x00000040) +#define CEC_FLAG_RBTF ((uint32_t)0x00000080) + +#define IS_CEC_CLEAR_FLAG(FLAG) ((((FLAG) & (uint32_t)0xFFFFFF03) == 0x00) && ((FLAG) != 0x00)) + +#define IS_CEC_GET_FLAG(FLAG) (((FLAG) == CEC_FLAG_BTE) || ((FLAG) == CEC_FLAG_BPE) || \ + ((FLAG) == CEC_FLAG_RBTFE) || ((FLAG)== CEC_FLAG_SBE) || \ + ((FLAG) == CEC_FLAG_ACKE) || ((FLAG) == CEC_FLAG_LINE) || \ + ((FLAG) == CEC_FLAG_TBTFE) || ((FLAG) == CEC_FLAG_TEOM) || \ + ((FLAG) == CEC_FLAG_TERR) || ((FLAG) == CEC_FLAG_TBTRF) || \ + ((FLAG) == CEC_FLAG_RSOM) || ((FLAG) == CEC_FLAG_REOM) || \ + ((FLAG) == CEC_FLAG_RERR) || ((FLAG) == CEC_FLAG_RBTF)) + +/** + * @} + */ + +/** + * @} + */ + +/** @defgroup CEC_Exported_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup CEC_Exported_Functions + * @{ + */ +void CEC_DeInit(void); +void CEC_Init(CEC_InitTypeDef* CEC_InitStruct); +void CEC_Cmd(FunctionalState NewState); +void CEC_ITConfig(FunctionalState NewState); +void CEC_OwnAddressConfig(uint8_t CEC_OwnAddress); +void CEC_SetPrescaler(uint16_t CEC_Prescaler); +void CEC_SendDataByte(uint8_t Data); +uint8_t CEC_ReceiveDataByte(void); +void CEC_StartOfMessage(void); +void CEC_EndOfMessageCmd(FunctionalState NewState); +FlagStatus CEC_GetFlagStatus(uint32_t CEC_FLAG); +void CEC_ClearFlag(uint32_t CEC_FLAG); +ITStatus CEC_GetITStatus(uint8_t CEC_IT); +void CEC_ClearITPendingBit(uint16_t CEC_IT); + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F10x_CEC_H */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/