/* app_loop.c - FreeRTOS 任务调度封装 * * 任务划分(裸机主循环轮询项拆分而来): * net_task(优先级3, 栈3KB) - 网络状态机 NET_process:4G/WiFi 建链、收发、OTA 下载 * app_task(优先级2, 栈2KB) - 业务:继电器命令/反馈状态机、投喂秤、状态上报、OTA 确认 * sys_task(优先级1, 栈1KB) - 系统:LED、电量、蓝牙调试命令、运行时长打印 * idle 钩子 - 喂 IWDG(只要调度器正常,看门狗就不会断粮; * 有任务死循环占 CPU 时 idle 饿死 → 复位,正是想要的行为) * * 共享资源互斥: * g_net_at_mutex - NET_publish_* 与长 AT 会话(建链/重连)互斥,拿锁失败直接丢弃 * s_storage_mutex - EEPROM(软件I2C) / W25Q64(软件SPI) 跨任务访问互斥(storage_lock) * log 输出 - log.c 内部互斥,多任务日志不交织 */ #include "app_loop.h" #include "app_common.h" #include "user_cmd.h" #include "relay.h" #include "network.h" #include "led.h" #include "adc.h" #include "feed_scale.h" #include "iic.h" #include "24c02.h" #include "uart.h" #include "../W25Q64/w25q64.h" #include "FreeRTOS.h" #include "task.h" #include "semphr.h" /*==== 存储总线互斥锁(EEPROM/W25Q64 共用一把递归锁)====*/ static SemaphoreHandle_t s_storage_mutex = NULL; void storage_lock_init(void) { s_storage_mutex = xSemaphoreCreateRecursiveMutex(); } void storage_lock(void) { if (s_storage_mutex && xTaskGetSchedulerState() == taskSCHEDULER_RUNNING) { xSemaphoreTakeRecursive(s_storage_mutex, portMAX_DELAY); } } void storage_unlock(void) { if (s_storage_mutex && xTaskGetSchedulerState() == taskSCHEDULER_RUNNING) { xSemaphoreGiveRecursive(s_storage_mutex); } } /*==== 业务模块初始化(调度器启动前调用,与裸机版一致)====*/ void app_init(void) { log_info(""); log_info("* * * * * * * * * * * * * * * * * *"); log_info("* Version: 1.4.0 (RTOS) *"); log_info("* * * * * * * By Helei * * * *"); /* EEPROM 中的 MQTT/版本配置 */ iicInit(); eepromReadInfo(); log_info("> Server: %s:%d", MqttInfoStr.ServerIP, MqttInfoStr.ServerPort); log_info("> Client: %s", MqttInfoStr.ClientID); log_info("> User : %s", MqttInfoStr.Username); log_info("> Firmware Ver: %u", MqttInfoStr.Ver); /* W25Q64 外部 Flash,用于 OTA 固件暂存 */ W25Q64_Init(); /* 继电器 GPIO(控制输出 + 反馈输入) */ relayInit(); /* RS485 喂料秤控制模块 */ feedScaleInit(); /* LED(LED2 心跳同时兼任外部看门狗 TPL5010 喂狗) */ ledInit(); /* ADC 电量检测 */ adcInit(); update_batter(); /* 网络模块初始化:按 EEPROM 记忆的上次成功方式优先(4G 或 WiFi) */ NET_init(); /* 启动各路串口接收 */ USART2_StartRx(); /* RS485 喂料秤 */ USART3_StartRx(); /* 4G MQTT 消息,DMA+IDLE */ USART1_StartRx(); /* 蓝牙调试命令 */ } /*==== net_task:网络状态机(4G/WiFi 建链、收发、OTA)====*/ static void net_task(void *arg) { (void)arg; for (;;) { NET_process(); vTaskDelay(5); } } /*==== app_task:业务逻辑(继电器/秤/上报/OTA 确认)====*/ static void app_task(void *arg) { (void)arg; /* 主循环状态变量 */ static uint8_t ota_confirmed = 0; static uint32_t ota_confirm_tick = 0; static uint32_t mqtt_ready_tick = 0; static uint8_t mqtt_ready_recorded = 0; static uint8_t mqtt_first_status_reported = 0; for (;;) { /* 记录 MQTT 首次就绪时刻 */ if (!mqtt_ready_recorded && g_net_mqtt_ready) { mqtt_ready_recorded = 1; mqtt_ready_tick = HAL_GetTick(); } /* MQTT 首次就绪后:先按 EEPROM 恢复继电器上次状态(断电记忆), * 再上报一次完整状态,让平台刷新为真实状态 */ if (g_net_mqtt_ready && !mqtt_first_status_reported) { mqtt_first_status_reported = 1; relayRestoreState(); relayStatueUpdata(); log_info("> Main: first status report after MQTT ready"); ota_confirm_tick = HAL_GetTick(); } /* 首次发布成功后延迟 3s 再 OTA 确认 */ if (!ota_confirmed && g_net_mqtt_ready && g_net_first_publish_ok && (HAL_GetTick() - ota_confirm_tick) > 3000) { ota_confirmed = 1; NET_ota_confirm(); log_info("> OTA confirmed (MQTT ready + first publish ok + 3s delay)"); } /* MQTT 就绪后 1 分钟仍未首次 MPUB,主动复位 */ if (!ota_confirmed && mqtt_ready_recorded && (HAL_GetTick() - mqtt_ready_tick) > OTA_HEALTH_TIMEOUT_MS) { log_warn("> OTA health timeout: MQTT ready but no MPUB in 1min, reset"); W25Q64_OTA_IncTrial(); /* 软件复位 BL 不计次,这里自行消耗一次试错 */ HAL_Delay(100); NVIC_SystemReset(); } /* 继电器命令响应状态机 */ relayCmdProcess(); /* 延迟状态上报 */ if (relay_report_pending && (HAL_GetTick() - relay_report_tick) > 100) { relay_report_pending = 0; relayStatueUpdata(); } /* 喂料秤轮询与投喂保护 */ feedScaleProcess(); vTaskDelay(10); } } /*==== sys_task:系统辅助(LED/电量/蓝牙命令/运行时长)====*/ static void sys_task(void *arg) { (void)arg; uint32_t batt_tick = HAL_GetTick(); uint32_t up_last = HAL_GetTick(); uint32_t up_print = HAL_GetTick(); uint64_t up_ms = 0; for (;;) { /* 蓝牙调试命令 */ process_usart1_command(); /* 联网指示:连接中闪烁,连上常亮(led.c activeEvents 据此控制 PA1) */ g_net_led_connected = g_net_mqtt_ready ? 1 : 0; /* LED 心跳/联网指示 */ activeEvents(); /* 电量 1s 节流更新 */ if (HAL_GetTick() - batt_tick >= 1000) { batt_tick = HAL_GetTick(); update_batter(); } /* 运行时长心跳:每 30s 串口输出一次(天/时/分), * 64 位累计,HAL_GetTick 约 49 天回绕也不受影响 */ { uint32_t now = HAL_GetTick(); up_ms += (uint32_t)(now - up_last); /* 32位差值天然容忍回绕 */ up_last = now; if (now - up_print >= 30000) { up_print = now; uint32_t mins = (uint32_t)(up_ms / 60000); log_info("> Uptime: %uday--%02uh--%02um\r\n", (unsigned)(mins / 1440), (unsigned)((mins % 1440) / 60), (unsigned)(mins % 60)); } } vTaskDelay(20); } } /*==== FreeRTOS 钩子 ====*/ /* idle 钩子:喂独立看门狗。有任务死循环占 CPU 时 idle 饿死 → IWDG 复位 */ void vApplicationIdleHook(void) { IWDG_Feed(); } void vApplicationMallocFailedHook(void) { log_error("> RTOS: malloc failed (heap exhausted)"); taskDISABLE_INTERRUPTS(); for (;;) { } } void vApplicationStackOverflowHook(TaskHandle_t xTask, char *pcTaskName) { (void)xTask; log_error("> RTOS: stack overflow in task %s", pcTaskName); taskDISABLE_INTERRUPTS(); for (;;) { } } /*==== 任务创建与调度器启动(main 调用,不再返回)====*/ void app_rtos_start(void) { /* 互斥锁先于任务创建 */ log_lock_init(); storage_lock_init(); NET_LockInit(); xTaskCreate(net_task, "net", 768, NULL, 3, NULL); /* 栈 3KB:AT/OTA 有大的 sprintf 缓冲 */ xTaskCreate(app_task, "app", 512, NULL, 2, NULL); /* 栈 2KB */ xTaskCreate(sys_task, "sys", 256, NULL, 1, NULL); /* 栈 1KB */ vTaskStartScheduler(); /* 不会走到这里(堆不足创建失败才会) */ log_error("> RTOS: scheduler failed to start"); for (;;) { } }