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31 lines
1002 B
31 lines
1002 B
#include "gpio.h"
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//////////////////////////////////////////////////////////////////////////////////
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//GPIO设置
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//////////////////////////////////////////////////////////////////////////////////
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void KEY_GPIO_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC, ENABLE); //使能PB端口时钟
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15; // 端口配置
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; // 端口配置
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度为50MHz
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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GPIO_ResetBits(GPIOC,GPIO_Pin_13); //输出低电平
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}
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