54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
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#include "led.h"
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static uint32_t last_tick = 0;
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static uint32_t net_led_tick = 0;
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/* 联网状态标志：0=未联网，1=联网成功 */
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volatile uint8_t g_net_led_connected = 0;
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void ledInit(void)
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{
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GPIO_InitTypeDef g = {0};
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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g.Mode = GPIO_MODE_OUTPUT_PP;
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g.Pull = GPIO_NOPULL;
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g.Speed = GPIO_SPEED_FREQ_LOW;
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/* LED2 - PC13 */
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g.Pin = LED2_Pin;
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HAL_GPIO_Init(LED2_Port, &g);
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/* 联网指示灯 - PA1, 默认熄灭 */
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g.Pin = NET_LED_Pin;
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HAL_GPIO_Init(NET_LED_Port, &g);
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LED2_OFF;
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NET_LED_OFF;
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g_net_led_connected = 0;
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last_tick = HAL_GetTick();
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net_led_tick = HAL_GetTick();
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}
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/* 主动事件: 每500ms LED2闪烁一次 */
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void activeEvents(void)
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{
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if (HAL_GetTick() - last_tick >= 500) {
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last_tick = HAL_GetTick();
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LED2_TOGGLE;
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}
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/* 联网指示灯控制：未联网时每 500ms 闪烁，联网成功后常亮 */
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if (!g_net_led_connected) {
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if (HAL_GetTick() - net_led_tick >= 500) {
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net_led_tick = HAL_GetTick();
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NET_LED_TOGGLE;
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}
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} else {
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NET_LED_ON;
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}
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}
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