这次提交基于FreeRTOS能正常运行。

还存在微小问题，由于CO2传感器必须通过看门狗重启一次后才能正常，这个问题还没解决。（喂狗只在CO2函数内，保证能重启RP2040）

SOFTWARE-FreeRTOS/Source/DS18B20.cpp

@@ -5,150 +5,48 @@
 QueueHandle_t xQueue;
 
 
-#define MAX_TIMINGS 85
-
-void ds18b20_init() {
-    gpio_init(DS18B20_PIN);
-    gpio_set_dir(DS18B20_PIN, GPIO_OUT);
-    gpio_put(DS18B20_PIN, 1); // 上拉电阻
-}
-
-void ds18b20_write_bit(uint8_t bit) {
-    gpio_set_dir(DS18B20_PIN, GPIO_OUT);
-    gpio_put(DS18B20_PIN, 0);
-    sleep_us(bit ? 10 : 60);
-    gpio_put(DS18B20_PIN, 1);
-    sleep_us(bit ? 55 : 5);
-}
-
-uint8_t ds18b20_read_bit() {
-    uint8_t bit = 0;
-    gpio_set_dir(DS18B20_PIN, GPIO_OUT);
-    gpio_put(DS18B20_PIN, 0);
-    sleep_us(3);
-    gpio_set_dir(DS18B20_PIN, GPIO_IN);
-    sleep_us(10);
-    bit = gpio_get(DS18B20_PIN);
-    sleep_us(50);
-    return bit;
-}
-
-void ds18b20_write_byte(uint8_t byte) {
-    for (int i = 0; i < 8; i++) {
-        ds18b20_write_bit(byte & 0x01);
-        byte >>= 1;
-    }
-}
-
-uint8_t ds18b20_read_byte() {
-    uint8_t byte = 0;
-    for (int i = 0; i < 8; i++) {
-        byte >>= 1;
-        if (ds18b20_read_bit()) {
-            byte |= 0x80;
-        }
-    }
-    return byte;
-}
-
-int ds18b20_reset() {
-    gpio_set_dir(DS18B20_PIN, GPIO_OUT);
-    gpio_put(DS18B20_PIN, 0);
-    sleep_us(480);
-    gpio_put(DS18B20_PIN, 1);
-    gpio_set_dir(DS18B20_PIN, GPIO_IN);
-    sleep_us(70);
-    int presence = !gpio_get(DS18B20_PIN);
-    sleep_us(410);
-    return presence;
-}
-
-float ds18b20_read_temperature() {
-    if (!ds18b20_reset()) {
-        printf("DS18B20 not found\n");
-        return -1;
-    }
-
-    ds18b20_write_byte(0xCC); // 跳过ROM指令
-    ds18b20_write_byte(0x44); // 启动温度转换
-
-    sleep_ms(750); // 温度转换时间，具体时间请参考传感器数据手册
-
-    if (!ds18b20_reset()) {
-        printf("DS18B20 not found\n");
-        return -1;
-    }
-
-    ds18b20_write_byte(0xCC); // 跳过ROM指令
-    ds18b20_write_byte(0xBE); // 读取暂存器
-
-    uint8_t lsb = ds18b20_read_byte();
-    uint8_t msb = ds18b20_read_byte();
-    int16_t temp = (msb << 8) | lsb;
-
-    // 检查传感器数据有效性
-    if (temp == 0xFFFF) {
-        printf("Invalid temperature data\n");
-        return -1;
-    }
-
-    return temp / 16.0; // 转换为摄氏度
-}
-
-
 // 温度传感器
 void DS18B20(void *pvParameters)
 {
-
     // One_wire 第三方库方法
     float TEMPERATURE = -1;
-
     One_wire one_wire(DS18B20_PIN);
     one_wire.init();
     rom_address_t address {
+        
     };
 
+
     _printTaskStackHighWaterMark("DS18B20");
 
     while (1) {
+
+    
         one_wire.single_device_read_rom(address);
         one_wire.convert_temperature(address, true, false);
         TEMPERATURE = one_wire.temperature(address);
 
-        sleep_ms(300);
-        printf("Device Address: %02x%02x%02x%02x%02x%02x%02x%02x DS18B20 Temperature: %3.1f°C\n", address.rom[0], address.rom[1], address.rom[2], address.rom[3], address.rom[4], address.rom[5], address.rom[6], address.rom[7], one_wire.temperature(address));
+        sleep_ms(1000);
+        printf("Device Address: %02x%02x%02x%02x%02x%02x%02x%02x DS18B20 Temperature: %3.1f°C\n", \
+                address.rom[0], address.rom[1], address.rom[2], address.rom[3], address.rom[4], \
+                address.rom[5], address.rom[6], address.rom[7], one_wire.temperature(address));
 
         if (TEMPERATURE != 85) {
-                char TEMPERATURE_TEMP[256] = { 0 };
+                char TEMPERATURE_TEMP[BUFER] = { 0 };
                 sprintf(TEMPERATURE_TEMP, "Temperature: %.3f°C\n", TEMPERATURE);
                 _HC_12(TEMPERATURE_TEMP);
 
-                //TEMPERATURE = -1;
+                TEMPERATURE = -1;
         }
-
+/*
         // 发送数据到队列
         xQueueSend(xQueue, &TEMPERATURE, portMAX_DELAY);
         vTaskDelay(pdMS_TO_TICKS(1000));
-
-        _printTaskStackHighWaterMark("DS18B20");
-        watchdog_update();                  // 喂狗
+*/
+        //_printTaskStackHighWaterMark("DS18B20");
+        //watchdog_update();                  // 喂狗
         vTaskDelay(pdMS_TO_TICKS(3000));    // 非阻塞延时
     }
     
-    /*
-    ds18b20_init();
-
-    while (1) {
-        float temperature = ds18b20_read_temperature();
-        if (temperature != -1) {
-            printf("DS18B20 Temperature: %.2f°C\n", temperature);
-        } else {
-            printf("Failed to read temperature\n");
-        }
-        
-        watchdog_update();                  // 喂狗
-        vTaskDelay(pdMS_TO_TICKS(3000)); // 非阻塞延时
-    }
-    */
-    return;
+    return ;
 }