42 lines
922 B
C
42 lines
922 B
C
#include "stm32f10x.h" // Device header
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#include "Delay.h"
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void KeyInit(void)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_11;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOB,&GPIO_InitStructure);
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}
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uint8_t Key_GetNum(void)
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{
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uint8_t Key_Num = 0;
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if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1) == 0)
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{
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Delay_ms(20);//消抖
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while(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1) == 0) ;//按键未弹起，循环等待
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Delay_ms(20);
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Key_Num = 1;
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}
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if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_11) == 0)
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{
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Delay_ms(20);//消抖
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while(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_11) == 0) ;//按键未弹起，循环等待
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Delay_ms(20);
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Key_Num = 2;
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};
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return Key_Num;
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}
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