来源：公众号【鱼鹰谈单片机】
作者：鱼鹰Osprey
ID ：emOsprey
有道友会说，不如使用 CubeMx 软件进行开发吧。
#define GPIOx_Def GPIO_TypeDef*#define GPIOMode_Def GPIOMode_TypeDeftypedef struct{GPIOx_Def gpio;uint16_t msk;GPIOMode_Def pull_up_down;} bsp_input_pin_def;#define _GPIO_PIN_INPUT(id, pull, gpiox, pinx) [id].gpio = (GPIOx_Def)gpiox, [id].msk = (1 << pinx), [id].pull_up_down = (GPIOMode_Def)pull#define GPIO_PIN_INPUT(id, pull, gpiox, pinx) _GPIO_PIN_INPUT(id, pull, gpiox, pinx)#define bsp_pin_get_port(gpiox) ((uint16_t)((GPIO_TypeDef *)gpiox)->IDR)#define bsp_pin_get_value(variable,id) do{ bsp_pin_get_port(bsp_input_pin[id].gpio) & bsp_input_pin[id].msk ? variable |= (1 << id) : 0;} while(0)typedef enum{PIN_INPUT_HALL_0 = 0, // 输入 IO 定义PIN_INPUT_HALL_1,PIN_INPUT_HALL_2,PIN_INPUT_MAX}bsp_pin_input_id_def;static const bsp_input_pin_def bsp_input_pin [PIN_INPUT_MAX] ={GPIO_PIN_INPUT(PIN_INPUT_HALL_0, BSP_GPIO_PUPD_NONE, GPIOA, 0),GPIO_PIN_INPUT(PIN_INPUT_HALL_1, BSP_GPIO_PUPD_NONE, GPIOB, 8),GPIO_PIN_INPUT(PIN_INPUT_HALL_2, BSP_GPIO_PUPD_NONE, GPIOE, 9),};// 单个 IO 初始化函数void bsp_pin_init_input(GPIOx_Def gpiox, uint32_t msk, GPIOMode_TypeDef pull_up_down){uint32_t temp;assert_param((msk & 0xffff0000) == 0 && gpiox != 0);temp = ((uint32_t) gpiox - (uint32_t) GPIOA) / ( (uint32_t) GPIOB - (uint32_t) GPIOA);/* enable the led clock */RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA << temp, ENABLE);GPIO_InitTypeDef GPIO_InitStruct;GPIO_InitStruct.GPIO_Mode = (GPIOMode_Def)pull_up_down;GPIO_InitStruct.GPIO_Pin = msk;GPIO_InitStruct.GPIO_Speed = GPIO_Speed_2MHz;GPIO_Init((GPIO_TypeDef*)gpiox, &GPIO_InitStruct);}// 所有 IO 初始化void gpio_input_init(){bsp_input_pin_def *info;info = (bsp_input_pin_def *)&bsp_input_pin;for(int i = 0; i < sizeof(bsp_input_pin)/sizeof(bsp_input_pin[0]); i++){bsp_pin_init_input(info->gpio, info->msk, info->pull_up_down);info++;}}// 最多支持 32 个 IO 输入uint32_t bsp_input_all(void){uint32_t temp = 0;bsp_pin_get_value(temp, PIN_INPUT_HALL_0);bsp_pin_get_value(temp, PIN_INPUT_HALL_1);bsp_pin_get_value(temp, PIN_INPUT_HALL_2);return temp;}// 读取单个 IO 状态uint32_t bsp_input_level(bsp_pin_input_id_def id){return (bsp_pin_get_port(bsp_input_pin[id].gpio) & bsp_input_pin[id].msk) ? 1 : 0;}typedef enum{HW_HAL_LEVEL_ACTIVE = 0, // 可直接修改为 0 或 1，另一个枚举值自动修改为相反值HW_HAL_LEVEL_NO_ACTIVE = !HW_HAL_LEVEL_ACTIVE,}hw_input_hal_status_def;typedef struct{hw_input_hal_status_def hal_level0;uint8_t hal_level1;uint8_t hal_level2;}bsp_input_status_def;bsp_input_status_def bsp_input_status;int main(void){USRAT_Init(9600);//必须，进入调试模式后点击全速运行gpio_input_init();while(1){uint32_t temp = bsp_input_all();bsp_input_status.hal_level0 = (hw_input_hal_status_def)((temp >> PIN_INPUT_HALL_0) & 1);bsp_input_status.hal_level1 = ((temp >> PIN_INPUT_HALL_1) & 1);bsp_input_status.hal_level2 = ((temp >> PIN_INPUT_HALL_2) & 1);}}
#define GPIOx_Def GPIO_TypeDef*#define GPIOMode_Def GPIOMode_TypeDeftypedef struct{GPIOx_Def gpio;uint32_t msk;uint32_t init_value;} bsp_output_pin_def;#define _GPIO_PIN_OUT(id, gpiox, pinx, init) [id].gpio = gpiox, [id].msk = (1 << pinx), [id].init_value = init#define GPIO_PIN_OUT(id, gpiox, pinx, init) _GPIO_PIN_OUT(id, gpiox, pinx, init)#define _bsp_pin_output_set(gpiox, pin) (gpiox)->BSRR = pin#define bsp_pin_output_set(gpiox, pin) _bsp_pin_output_set(gpiox, pin)#define _bsp_pin_output_clr(gpiox, pin) (gpiox)->BRR = pin#define bsp_pin_output_clr(gpiox, pin) _bsp_pin_output_clr(gpiox, pin)typedef enum{PIN_OUTPUT_LED_G,PIN_OUTPUT_LED_R,PIN_OUTPUT_LED_B,PIN_OUTPUT_MAX}bsp_pin_output_id_def;static const bsp_output_pin_def bsp_output_pin [PIN_OUTPUT_MAX] ={GPIO_PIN_OUT(PIN_OUTPUT_LED_G, GPIOA, 0, 0),GPIO_PIN_OUT(PIN_OUTPUT_LED_R, GPIOF, 15, 0),GPIO_PIN_OUT(PIN_OUTPUT_LED_B, GPIOD, 10, 0),};void bsp_pin_init_output(GPIOx_Def gpiox, uint32_t msk, uint32_t init){uint32_t temp;assert_param((msk & 0xffff0000) == 0 && gpiox != 0);temp = ((uint32_t) gpiox - (uint32_t) GPIOA) / ( (uint32_t) GPIOB - (uint32_t) GPIOA);/* enable the led clock */RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA << temp, ENABLE);GPIO_InitTypeDef GPIO_InitStruct;GPIO_InitStruct.GPIO_Mode = (GPIOMode_Def)GPIO_Mode_Out_PP;GPIO_InitStruct.GPIO_Pin = msk;GPIO_InitStruct.GPIO_Speed = GPIO_Speed_2MHz;GPIO_Init((GPIO_TypeDef*)gpiox, &GPIO_InitStruct);if(init == 0){bsp_pin_output_clr(gpiox, msk);}else{bsp_pin_output_set(gpiox, msk);}}void bsp_output_init(){bsp_output_pin_def *info;info = (bsp_output_pin_def *)&bsp_output_pin;for(int i = 0; i < sizeof(bsp_output_pin)/sizeof(bsp_output_pin[0]); i++){bsp_pin_init_output(info->gpio, info->msk, info->init_value);info++;}}void bsp_output(bsp_pin_output_id_def id, uint32_t value){assert_param(id < PIN_OUTPUT_MAX);if(value == 0){bsp_pin_output_clr(bsp_output_pin[id].gpio, bsp_output_pin[id].msk);}else{bsp_pin_output_set(bsp_output_pin[id].gpio, bsp_output_pin[id].msk);}}int main(void){USRAT_Init(9600);//必须，进入调试模式后点击全速运行bsp_output_init();while(1){bsp_output(PIN_OUTPUT_LED_G, 1);bsp_output(PIN_OUTPUT_LED_B, 0);bsp_output(PIN_OUTPUT_LED_R, 1);}}
