78 lines
2.8 KiB
C
78 lines
2.8 KiB
C
//管理 GPIO 的初始化
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#include "sys.h"
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#include "gpio.h"
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/**************************************** GPIO A1 ****************************************/
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/**
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* @brief PA1 初始化，用于 LED2
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*/
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void GPIO_A1_Init(void)
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{
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GPIO_InitTypeDef GPIO_Initure;
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__HAL_RCC_GPIOA_CLK_ENABLE(); //开启 PA 时钟
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GPIO_Initure.Pin = GPIO_PIN_1; //PA1
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GPIO_Initure.Mode = GPIO_MODE_OUTPUT_PP; //推挽输出
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GPIO_Initure.Pull = GPIO_PULLUP; //上拉
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GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH; //高速
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HAL_GPIO_Init(GPIOA, &GPIO_Initure); //初始化 PA1
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}
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/****************************************************************************************/
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/************************************** GPIO E3 C5 **************************************/
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/**
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* @brief PE3 PC5 PD10 初始化，用于 KEY1 KEY2 KEY3
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*/
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void GPIO_E3_C5_D10_Init(void)
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{
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GPIO_InitTypeDef GPIO_Initure;
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__HAL_RCC_GPIOC_CLK_ENABLE(); //开启 PC 时钟
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__HAL_RCC_GPIOE_CLK_ENABLE(); //开启 PE 时钟
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__HAL_RCC_GPIOD_CLK_ENABLE(); //开启 PD 时钟
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GPIO_Initure.Pin = GPIO_PIN_3; //PE3：对应 KEY1
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GPIO_Initure.Mode = GPIO_MODE_INPUT; //输入
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GPIO_Initure.Pull = GPIO_PULLUP; //上拉
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GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH; //高速
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HAL_GPIO_Init(GPIOE, &GPIO_Initure); //初始化 PE3
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GPIO_Initure.Pin = GPIO_PIN_5; //PC5：对应 KEY2
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GPIO_Initure.Mode = GPIO_MODE_INPUT; //输入
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GPIO_Initure.Pull = GPIO_PULLUP; //上拉
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GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH; //高速
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HAL_GPIO_Init(GPIOC, &GPIO_Initure); //初始化 PC5
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GPIO_Initure.Pin = GPIO_PIN_10; //PC5：对应 KEY3
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GPIO_Initure.Mode = GPIO_MODE_INPUT; //输入
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GPIO_Initure.Pull = GPIO_PULLUP; //上拉
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GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH; //高速
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HAL_GPIO_Init(GPIOD, &GPIO_Initure); //初始化 PD10
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}
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/****************************************************************************************/
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/************************************ GPIO B0 B1 B12 ************************************/
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/**
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* @brief PB0 PB1 PB12 初始化，用于 LCD 的 BLK RS CS
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*/
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void GPIO_B0_B1_B12_Init(void)
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{
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GPIO_InitTypeDef GPIO_Initure;
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__HAL_RCC_GPIOB_CLK_ENABLE(); //开启 PB 时钟
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GPIO_Initure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_12; //PB0 PB1 PB12
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GPIO_Initure.Mode = GPIO_MODE_OUTPUT_PP; //推挽输出
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GPIO_Initure.Pull = GPIO_PULLUP; //上拉
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GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH; //高速
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HAL_GPIO_Init(GPIOB, &GPIO_Initure); //初始化 PB0 PB1 PB12
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}
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/****************************************************************************************/
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