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261
Drivers/BSP/LED/led.c
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261
Drivers/BSP/LED/led.c
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/**
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******************************************************************************
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* @文件 led.c
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* @作者 阜阳师范大学物电学院
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* @版本 V0.3
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* @日期 2026-01-15
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* @简介 LED 驱动 - 基于结构体的高可移植性实现
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* @说明 通过修改LED配置数组即可适配不同的硬件连接，无需修改其他代码
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* 所有硬件相关参数（端口、引脚、极性、速度、上拉下拉）都集中在配置数组中
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****
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*/
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#include "led.h"
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/* ============================================================================
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* LED配置数组 - 在此处修改硬件连接配置
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* 格式说明：
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* {端口, 引脚, 极性, 默认状态, 速度, 上拉下拉}
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*
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* 示例：
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* {GPIOA, GPIO_PIN_0, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP}
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* {GPIOB, GPIO_PIN_5, LED_POLARITY_HIGH_ACTIVE, GPIO_PIN_RESET, GPIO_SPEED_FREQ_MEDIUM, GPIO_NOPULL}
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* ============================================================================ */
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static const LED_Config_t led_config[LED_COUNT] = {
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/* LED1: PD6 - 低电平有效 */
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{GPIOD, GPIO_PIN_6, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED2: PD5 - 低电平有效 */
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{GPIOD, GPIO_PIN_5, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED3: PD4 - 低电平有效 */
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{GPIOD, GPIO_PIN_4, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED4: PD3 - 低电平有效 */
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{GPIOD, GPIO_PIN_3, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED5: PD2 - 低电平有效 */
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{GPIOD, GPIO_PIN_2, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED6: PD1 - 低电平有效 */
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{GPIOD, GPIO_PIN_1, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED7: PD0 - 低电平有效 */
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{GPIOD, GPIO_PIN_0, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED8: PC12 - 低电平有效 */
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{GPIOC, GPIO_PIN_12, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED9: PA12 - 低电平有效 */
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{GPIOA, GPIO_PIN_12, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED10: PA11 - 低电平有效 */
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{GPIOA, GPIO_PIN_11, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED11: PA10 - 低电平有效 */
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{GPIOA, GPIO_PIN_10, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED12: PA9 - 低电平有效 */
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{GPIOA, GPIO_PIN_9, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED13: PA8 - 低电平有效 */
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{GPIOA, GPIO_PIN_8, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED14: PC9 - 低电平有效 */
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{GPIOC, GPIO_PIN_9, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED15: PC8 - 低电平有效 */
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{GPIOC, GPIO_PIN_8, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED16: PC7 - 低电平有效 */
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{GPIOC, GPIO_PIN_7, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED17: PE3 - 低电平有效 */
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{GPIOE, GPIO_PIN_3, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED18: PE4 - 低电平有效 */
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{GPIOE, GPIO_PIN_4, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED19: PE2 - 低电平有效 */
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{GPIOE, GPIO_PIN_2, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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/* LED20: PE5 - 低电平有效 */
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{GPIOE, GPIO_PIN_5, LED_POLARITY_LOW_ACTIVE, GPIO_PIN_SET, GPIO_SPEED_FREQ_HIGH, GPIO_PULLUP},
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};
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/* LED状态数组 - 使用枚举类型提高类型安全性 */
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static LED_State_t led_state[LED_COUNT];
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/**
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* @brief 使能GPIO时钟
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* @param port: GPIO端口
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* @retval 无
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* @note 使用switch-case结构，代码更简洁清晰，支持所有GPIO端口（A-G）
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*/
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static void LED_GPIO_ClockEnable(GPIO_TypeDef *port)
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{
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switch ((uint32_t)port) {
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case (uint32_t)GPIOA: __HAL_RCC_GPIOA_CLK_ENABLE(); break;
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case (uint32_t)GPIOB: __HAL_RCC_GPIOB_CLK_ENABLE(); break;
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case (uint32_t)GPIOC: __HAL_RCC_GPIOC_CLK_ENABLE(); break;
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case (uint32_t)GPIOD: __HAL_RCC_GPIOD_CLK_ENABLE(); break;
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case (uint32_t)GPIOE: __HAL_RCC_GPIOE_CLK_ENABLE(); break;
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case (uint32_t)GPIOF: __HAL_RCC_GPIOF_CLK_ENABLE(); break;
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case (uint32_t)GPIOG: __HAL_RCC_GPIOG_CLK_ENABLE(); break;
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default: break;
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}
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}
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/**
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* @brief LED初始化
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* @param 无
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* @retval 无
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* @note 自动初始化所有配置的LED，所有硬件参数从配置数组中读取
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* 无需手动逐个配置，修改硬件连接只需修改配置数组
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*/
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void LED_Init(void)
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{
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GPIO_InitTypeDef gpio_init_struct;
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uint8_t i;
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/* 遍历配置数组，初始化所有LED */
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for (i = 0; i < LED_COUNT; i++) {
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/* 使能对应GPIO时钟 */
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LED_GPIO_ClockEnable(led_config[i].port);
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/* 从配置数组中读取GPIO参数 */
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gpio_init_struct.Pin = led_config[i].pin;
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gpio_init_struct.Mode = GPIO_MODE_OUTPUT_PP; /* 推挽输出模式 */
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gpio_init_struct.Speed = led_config[i].speed; /* 速度配置 */
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gpio_init_struct.Pull = led_config[i].pull; /* 上拉下拉配置 */
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/* 初始化GPIO引脚 */
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HAL_GPIO_Init(led_config[i].port, &gpio_init_struct);
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/* 设置默认状态 */
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HAL_GPIO_WritePin(led_config[i].port, led_config[i].pin, led_config[i].default_state);
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/* 初始化状态数组（根据默认状态和极性计算逻辑状态） */
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if (led_config[i].polarity == LED_POLARITY_LOW_ACTIVE) {
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led_state[i] = (led_config[i].default_state == GPIO_PIN_RESET) ? LED_ON : LED_OFF;
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} else {
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led_state[i] = (led_config[i].default_state == GPIO_PIN_SET) ? LED_ON : LED_OFF;
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}
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}
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LED_POW(LED_ON); /*上电指示灯亮*/
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}
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/**
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* @brief 点亮LED
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* @param led_id: LED ID (0 ~ LED_COUNT-1)
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* @retval 无
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*/
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void LED_On(uint8_t led_id)
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{
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GPIO_PinState pin_state;
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if (led_id >= LED_COUNT) {
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return;
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}
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/* 根据极性设置引脚状态 */
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if (led_config[led_id].polarity == LED_POLARITY_LOW_ACTIVE) {
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pin_state = GPIO_PIN_RESET; /* 低电平有效，输出低电平点亮 */
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} else {
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pin_state = GPIO_PIN_SET; /* 高电平有效，输出高电平点亮 */
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}
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HAL_GPIO_WritePin(led_config[led_id].port, led_config[led_id].pin, pin_state);
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led_state[led_id] = LED_ON;
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}
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/**
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* @brief 熄灭LED
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* @param led_id: LED ID (0 ~ LED_COUNT-1)
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* @retval 无
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*/
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void LED_Off(uint8_t led_id)
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{
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GPIO_PinState pin_state;
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if (led_id >= LED_COUNT) {
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return;
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}
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/* 根据极性设置引脚状态 */
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if (led_config[led_id].polarity == LED_POLARITY_LOW_ACTIVE) {
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pin_state = GPIO_PIN_SET; /* 低电平有效，输出高电平熄灭 */
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} else {
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pin_state = GPIO_PIN_RESET; /* 高电平有效，输出低电平熄灭 */
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}
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HAL_GPIO_WritePin(led_config[led_id].port, led_config[led_id].pin, pin_state);
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led_state[led_id] = LED_OFF;
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}
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/**
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* @brief 翻转LED状态
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* @param led_id: LED ID (0 ~ LED_COUNT-1)
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* @retval 无
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*/
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void LED_Toggle(uint8_t led_id)
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{
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if (led_id >= LED_COUNT) {
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return;
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}
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HAL_GPIO_TogglePin(led_config[led_id].port, led_config[led_id].pin);
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/* 翻转LED状态 - 使用显式条件判断，提高类型安全性 */
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led_state[led_id] = (led_state[led_id] == LED_ON) ? LED_OFF : LED_ON;
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}
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/**
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* @brief 设置LED状态
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* @param led_id: LED ID (0 ~ LED_COUNT-1)
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* @param state: LED状态 (LED_ON 或 LED_OFF)
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* @retval 无
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*/
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void LED_Set(uint8_t led_id, LED_State_t state)
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{
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if (state == LED_ON) {
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LED_On(led_id);
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} else {
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LED_Off(led_id);
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}
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}
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/**
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* @brief 获取LED状态
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* @param led_id: LED ID (0 ~ LED_COUNT-1)
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* @retval LED状态 (LED_ON 或 LED_OFF)
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*/
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LED_State_t LED_GetState(uint8_t led_id)
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{
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if (led_id >= LED_COUNT) {
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return LED_OFF;
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}
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return led_state[led_id];
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}
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/**
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* @brief 输出LED状态
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* @param ledbuf 状态字节
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* @retval 无
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*/
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void LED_Printf(uint8_t* ledbuf)
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{
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uint32_t leddata = (ledbuf[3]<<24) |(ledbuf[2]<<16) | (ledbuf[1]<<8) | ledbuf[0];
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uint32_t i = 0;
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LED_State_t state; /* 使用枚举类型，提高类型安全性 */
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LED_POW(LED_ON); /* 默认上电亮灯 */
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for(i=1; i<LED_COUNT; i++)
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{
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/* 将位掩码结果转换为枚举类型：非0 -> LED_ON, 0 -> LED_OFF */
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state = (leddata & (1UL << i)) ? LED_ON : LED_OFF;
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LED_Set((uint8_t)i, state);
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}
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}
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