mqtt上传数据的方式使用DMA，避免占用cpu

app/stm32fxxx_app/app/task_register.c

@@ -67,7 +67,7 @@ void task_100ms_handler(uint32_t base_time)
 		cout100ms++;
     bms_poll_iso(base_time);
 		// bms_poll_adc(); THis was originally commented.
-//    bms_poll_adc(base_time);
+    bms_poll_adc(base_time);
     bms_poll_statistic(base_time);
 		bms_poll_run_status(base_time); 
     bms_poll_sop(base_time);
@@ -111,7 +111,7 @@ void poll_1ms_task_init(void)
 		bms_init_gpio();
     bms_init_eeprom();
 		// bms_init_adc(); THis was originally commented.
-    // bms_init_adc();
+    bms_init_adc();
     bms_init_tag();
     bms_init_run();
 		bms_init_comm();
@@ -175,6 +175,9 @@ void poll_10ms_task_init(void)
 
     bms_init_sop();
     bms_init_iso();
+		
+		drv_rtc_init();
+		
 		// bsp_create_task(&poll_100ms_task, (uint8_t *)"100ms");,THis was originally commented.
     bsp_create_task(&poll_100ms_task, (uint8_t *)"100ms");
 		bsp_create_task(&bms_poll_bmu_task, (uint8_t *)"100ms");

app/stm32fxxx_app/protocol/protocol_mqtt_bcu.c

@@ -984,7 +984,7 @@ void protocol_build_json(uint16_t groupId)
     if (json_str) 
     {
         drv_mqtt_publish_no_respose(json_str, strlen(json_str));
-				bsp_task_delay_ms(10);
+				bsp_task_delay_ms(100);
         cJSON_free(json_str);
     } 
 
@@ -1042,6 +1042,7 @@ void protocol_build_volt_json(uint8_t i)
     if (json_str)
     {
         drv_mqtt_publish_no_respose(json_str, strlen(json_str));
+				bsp_task_delay_ms(100);
         cJSON_free(json_str);
     }
 
@@ -1099,6 +1100,7 @@ void protocol_build_temp_json(uint8_t i)
     if (json_str)
     {
         drv_mqtt_publish_no_respose(json_str, strlen(json_str));
+				bsp_task_delay_ms(100);
         cJSON_free(json_str);
     }
 
@@ -1170,7 +1172,10 @@ void mqtt_publish_bms_data(uint32_t basetime)
 				// 定期检测是否蓝牙断连--？？？
 				if (!drv_at_send_cmd("AT+QBLESTAT", "ADVERTISING\0", WIFI_TIMEOUT)) 
 				{
-						drv_ble_init();
+						if (!drv_at_send_cmd("AT+QBLESTAT", "CONNECTED\0", WIFI_TIMEOUT)) 
+						{
+								drv_ble_init();
+						}
 				}
 //				else   //@wangk add 5-20,这段注释可以证明上述if起作用了，解决蓝牙小概率会消失的问题
 //				{

library/drv_peripheral/drv_qfc41d.c

@@ -14,7 +14,7 @@ char wifiName[40] = "BLUESUNESS", wifiPassWord[40] = "bluesun009", bleName[40] =
 
 char cmd[1000] = {0}; //降低栈空间使用
 
-#define TX_DMA_BUFFER_SIZE 800
+#define TX_DMA_BUFFER_SIZE 1000
 
 uint8_t dma_tx_buffer[TX_DMA_BUFFER_SIZE];
 volatile uint8_t dma_tx_busy = 0;
@@ -72,6 +72,7 @@ void drv_wireless_send_string(const char *str)
 
 void drv_wireless_send_string_dma(const char *str)
 {
+		bsp_task_delay_ms(100);
     if (dma_tx_busy) return;  // 正在发送，丢弃或排队视情况处理
 
     uint16_t len = 0;
@@ -356,8 +357,8 @@ uint8_t drv_mqtt_publish_no_respose(char* str,uint16_t length)
 {
 //    snprintf(cmd, sizeof(cmd), "AT+QMTPUB=0,1,2,0,%s,%d,%s",MQTT_TOPIC, length, str);
 		snprintf(cmd, sizeof(cmd), "AT+QMTPUB=0,1,2,0,\"%s\",%d,\"%s\"", MQTT_TOPIC, length, str);
-    drv_wireless_send_string(cmd);  // 未使用DMA
+//    drv_wireless_send_string(cmd);  // 未使用DMA
-//		drv_wireless_send_string_dma(cmd);  // 使用DMA
+		drv_wireless_send_string_dma(cmd);  // 使用DMA
 //		kit_time_dly_ms(100);
     return 0;
 }

library/drv_stm32f4xx/drv_rtc.c

@@ -52,15 +52,16 @@ void drv_rtc_disable_init_mode(void)
 	RTC->WPR = 0xFF;			//使能RTC寄存器写保护 
 }
 
-
+#define RCC_BDCR_RTCSEL_LSI    (0x2U << 8)  // RTCSEL[1:0] = 10, 选择 LSI 作为 RTC 时钟
 //由于低速时钟起振较慢，其他任务初始化后再初始化RTC
 bool drv_rtc_init(void)
 {
+	#if 0
     bool res = false;
 	uint32_t dly = 0;
 	//if((RCC->BDCR & RCC_BDCR_RTCEN_POS) != RCC_BDCR_RTCEN_POS)
 	{
-        KIT_DEBUG_PRINTF("rtc init\r\n");
+        KIT_PRINTF("rtc init\r\n");
 		RCC->APB1ENR |= RCC_APB1Periph_PWR;
         //使能允许写入RTC和后备寄存器
 		PWR->CR |= PWR_CR_DBP;	
@@ -71,11 +72,11 @@ bool drv_rtc_init(void)
 			bsp_task_delay_ms(10);
 			if(dly++ > 500)
             {
-                KIT_DEBUG_PRINTF("rtc fail \r\n");
+                KIT_PRINTF("rtc fail \r\n");
                 return res;
             }
 		}
-        KIT_DEBUG_PRINTF("rtc dly %d\r\n", dly);
+        KIT_PRINTF("rtc dly %d\r\n", dly);
 		RCC->BDCR |= (RCC_RTCCLKSource_LSE | RCC_BDCR_RTCEN_POS);
 		//RTC配置使用默认配置
 		//设置同步分频系数和异步分频系数，默认为1Hz = 32768/(同步分频 + 1)/(异步分频 + 1)
@@ -89,6 +90,38 @@ bool drv_rtc_init(void)
 		//PWR->CR &= ~PWR_CR_DBP_POS;
 	}
 	return res;
+	#endif
+	
+    /* 1. 使能PWR和备份域访问 */
+    RCC->APB1ENR |= RCC_APB1ENR_PWREN;         // 开启PWR时钟
+    PWR->CR |= PWR_CR_DBP;                     // 允许访问备份域
+
+    /* 2. 启用LSI并等待稳定 */
+    RCC->CSR |= RCC_CSR_LSION;                 // 启动内部低速时钟LSI
+    while ((RCC->CSR & RCC_CSR_LSIRDY) == 0);  // 等待LSI准备好
+
+    /* 3. 选择LSI作为RTC时钟 */
+    RCC->BDCR &= ~RCC_BDCR_RTCSEL;             // 清除RTC时钟选择
+    RCC->BDCR |= RCC_BDCR_RTCSEL_LSI;          // 选择LSI为RTC时钟
+    RCC->BDCR |= RCC_BDCR_RTCEN;               // 使能RTC
+
+    /* 4. 解锁RTC寄存器 */
+    RTC->WPR = 0xCA; // 先写入第一解锁码
+    RTC->WPR = 0x53; // 再写入第二解锁码
+
+    RTC->ISR |= RTC_ISR_INIT;                  // 进入初始化模式
+    while ((RTC->ISR & RTC_ISR_INITF) == 0);   // 等待初始化完成
+
+    /* 5. 设置RTC预分频器（LSI约为40kHz） */
+    RTC->PRER = (127 << 16) | (249);           // Async=127, Sync=249，1Hz计数频率
+
+    RTC->CR &= ~RTC_CR_FMT;                    // 设置为24小时格式
+
+    RTC->ISR &= ~RTC_ISR_INIT;                 // 退出初始化模式
+
+    /* 6. 锁定写保护 */
+    RTC->WPR = 0xFF;
+	
 }
 
 //ampm:AM/PM,0=AM/24H,1=PM.
@@ -180,6 +213,7 @@ bool drv_rtc_get_date(int32_t *year, int32_t *month, int32_t *day)
 
 uint32_t drv_rtc_get_tick(void)
 {
+	#if 0
     struct tm tmp;
     uint32_t res = 0;
     
@@ -189,10 +223,30 @@ uint32_t drv_rtc_get_tick(void)
 	{
         tmp.tm_mon--;
         tmp.tm_year = (tmp.tm_year > 2018) ? (tmp.tm_year - 1900) : 119;
-		res = kit_time_get_stamp(2019, &tmp);
+		res = mktime(&tmp);
+
+		//res = kit_time_get_stamp(2019, &tmp);
 	}
     
     return res;
+	
+	#endif
+	
+    uint16_t year;
+    uint8_t month, date, hour, min, sec;
+
+    drv_get_date_time(&year, &month, &date, &hour, &min, &sec);
+
+    struct tm rtc_tm;
+    rtc_tm.tm_year = year - 1900;
+    rtc_tm.tm_mon  = month - 1;
+    rtc_tm.tm_mday = date;
+    rtc_tm.tm_hour = hour;
+    rtc_tm.tm_min  = min;
+    rtc_tm.tm_sec  = sec;
+    rtc_tm.tm_isdst = -1;  // 不使用夏令时
+
+    return kit_time_get_stamp(1970, &rtc_tm);
 }
 
 bool drv_rtc_set_tick(uint32_t tick)
@@ -269,3 +323,54 @@ bool drv_rtc_set_ms(uint16_t ms)
     return res;
 }
 
+// 设置日期时间：year = 2000~2099
+void drv_set_date_time(uint16_t year, uint8_t month, uint8_t date,uint8_t hour, uint8_t min, uint8_t sec)
+{
+    if (year < 2000 || year > 2099) return; // 超出 RTC 范围
+    if (month == 0 || month > 12 || date == 0 || date > 31) return;
+    if (hour > 23 || min > 59 || sec > 59) return;
+
+    uint8_t yr = year - 2000;
+
+    // 解锁写保护
+    RTC->WPR = 0xCA;
+    RTC->WPR = 0x53;
+
+    // 进入初始化模式
+    RTC->ISR |= RTC_ISR_INIT;
+    while ((RTC->ISR & RTC_ISR_INITF) == 0);
+
+    // 设置时间（BCD格式）
+    RTC->TR = ((hour / 10) << 20) | ((hour % 10) << 16) |
+              ((min  / 10) << 12) | ((min  % 10) << 8)  |
+              ((sec  / 10) << 4)  |  (sec  % 10);
+
+    // 设置日期（BCD格式）
+    RTC->DR = ((yr    / 10) << 20) | ((yr    % 10) << 16) |
+              ((month / 10) << 12) | ((month % 10) << 8)  |
+              ((date  / 10) << 4)  |  (date  % 10);
+
+    RTC->ISR &= ~RTC_ISR_INIT; // 退出初始化模式
+
+    // 上锁
+    RTC->WPR = 0xFF;
+}
+
+// 获取当前时间
+void drv_get_date_time(uint16_t *year, uint8_t *month, uint8_t *date,uint8_t *hour, uint8_t *min, uint8_t *sec)
+{
+    uint32_t tr = RTC->TR;
+    uint32_t dr = RTC->DR;
+
+    *hour  = ((tr >> 20) & 0x3) * 10 + ((tr >> 16) & 0xF);
+    *min   = ((tr >> 12) & 0x7) * 10 + ((tr >> 8) & 0xF);
+    *sec   = ((tr >> 4)  & 0x7) * 10 +  (tr        & 0xF);
+
+    uint8_t yr_l = ((dr >> 20) & 0xF) * 10 + ((dr >> 16) & 0xF);
+    *year  = 2000 + yr_l;
+
+    *month = ((dr >> 12) & 0x1) * 10 + ((dr >> 8)  & 0xF);
+    *date  = ((dr >> 4)  & 0x3) * 10 +  (dr        & 0xF);
+}
+
+

library/drv_stm32f4xx/drv_rtc.h

@@ -18,6 +18,11 @@ bool drv_rtc_set_ms(uint16_t ms);
 uint16_t drv_rtc_get_ms(void);
 uint32_t drv_rtc_get_tick(void);
 
+// 获取当前时间
+void drv_get_date_time(uint16_t *year, uint8_t *month, uint8_t *date,uint8_t *hour, uint8_t *min, uint8_t *sec);
+// 设置日期时间：year = 2000~2099
+void drv_set_date_time(uint16_t year, uint8_t month, uint8_t date,uint8_t hour, uint8_t min, uint8_t sec);
+
 #ifdef __cplusplus
 }
 #endif