43 lines
950 B
C
43 lines
950 B
C
//LED 库
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#include "sys.h"
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#include "led.h"
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/**
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* @brief LED 初始化，用于 LED2
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*/
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void LED_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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LED2_Off;
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SysTick_StartTimer(LED2_SYSTICK_TIMER_ID, 50);
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}
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/**
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* @brief LED2 慢速翻转，无阻塞，防止因调用过快导致无法观察
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* @param led_num: 序号
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*/
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void LED_Slow_Toggle(uint8_t led_num)
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{
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switch (led_num)
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{
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case 2:
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{
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if (SysTick_CheckTimer(LED2_SYSTICK_TIMER_ID))
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{
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HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_1);
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SysTick_StartTimer(LED2_SYSTICK_TIMER_ID, 50);
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}
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}
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}
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}
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