No data from BME.

Inc/main.h

@@ -84,6 +84,7 @@ volatile struct {
 /* USER CODE BEGIN EC */
 #define I2C_RET_OK    (int8_t)0
 #define I2C_RET_NACK  (int8_t)-1
+#define I2C_RET_TOUT  (int8_t)-2
 
 /* USER CODE END EC */
 

Src/main.c

@@ -189,7 +189,7 @@ int main(void)
   SensorDev.read = user_i2c_read;
   SensorDev.write = user_i2c_write;
   SensorDev.delay_ms = tdelay_ms;
-  //rsltSensor = bme280_init(&SensorDev);
+  rsltSensor = bme280_init(&SensorDev);
   if (rsltSensor == BME280_OK) {
     Flag.BME280 = 1;
   }
@@ -206,8 +206,8 @@ int main(void)
   SensorDev.settings.osr_t = BME280_OVERSAMPLING_2X;
   SensorDev.settings.filter = BME280_FILTER_COEFF_16;
 
-  //rsltSensor = bme280_set_sensor_settings((BME280_OSR_PRESS_SEL | BME280_OSR_TEMP_SEL | BME280_OSR_HUM_SEL | BME280_FILTER_SEL), &SensorDev);
-  //rsltSensor = bme280_set_sensor_mode(BME280_NORMAL_MODE, &SensorDev);
+  rsltSensor = bme280_set_sensor_settings((BME280_OSR_PRESS_SEL | BME280_OSR_TEMP_SEL | BME280_OSR_HUM_SEL | BME280_FILTER_SEL), &SensorDev);
+  rsltSensor = bme280_set_sensor_mode(BME280_FORCED_MODE, &SensorDev);
   //SensorDev.delay_ms(50);
   //rsltSensor = bme280_get_sensor_data(BME280_ALL, &SensorData, &SensorDev);
   /* bme280_get_sensor_data(...) returns:
@@ -224,16 +224,15 @@ int main(void)
   {
     IN15_OFF;
     COLOR_RGB(0, 0, 0);
-    tdelay_ms(500);
-
     RTC_ReadAll(&Clock);
-    //rsltSensor = bme280_get_sensor_data(BME280_ALL, &SensorData, &SensorDev);
+    tdelay_ms(500);
 
     if (Flag.RTC_IRQ != 0) {
       Flag.RTC_IRQ = 0;
       IN15_Minus;
     }
     COLOR_RGB(0xFF, 0x12, 0x0); // FF7E00 or FFBF00
+    rsltSensor = bme280_get_sensor_data(BME280_ALL, &SensorData, &SensorDev);
     tdelay_ms(500);
     /* USER CODE END WHILE */
 
@@ -258,10 +257,10 @@ int main(void)
       pres_h = (uint8_t)(tmp / 100);
       pres_l = (uint8_t)(tmp % 100);
 
-      showDigit(Tube_A, temp_h >> 4);
-      showDigit(Tube_B, temp_h & 0xf);
-      showDigit(Tube_D, temp_l >> 4);
-      showDigit(Tube_E, temp_l & 0xf);
+      showDigit(Tube_A, hum_h / 10);
+      showDigit(Tube_B, hum_h % 10);
+      showDigit(Tube_D, hum_l / 10);
+      showDigit(Tube_E, hum_l % 10);
     } else {
       showDigit(Tube_A, Clock.Min >> 4);
       showDigit(Tube_B, Clock.Min & 0xf);
@@ -271,7 +270,7 @@ int main(void)
     SPI_StartTX();
 
     RTOS_DispatchTask();
-    //__WFI();
+    __WFI();
   }
   /* USER CODE END 3 */
 }
@@ -291,6 +290,7 @@ int8_t user_i2c_read(const uint8_t id, const uint8_t reg_addr, uint8_t *data, co
   /* prepare i2c for sending reg addr */
   I2C1->CR2 &= ~( I2C_CR2_SADD | I2C_CR2_NBYTES | I2C_CR2_RD_WRN);
   I2C1->CR2 |= ( id | 1 << I2C_CR2_NBYTES_Pos );
+  I2C1->CR1 |= I2C_CR1_NOSTRETCH;
   /* gen START */
   I2C1->CR2 |= ( I2C_CR2_START );
 
@@ -311,7 +311,8 @@ int8_t user_i2c_read(const uint8_t id, const uint8_t reg_addr, uint8_t *data, co
   I2C1->TXDR = reg_addr;
 
   /* wait for i2c */
-  while ( I2C1->ISR & I2C_ISR_BUSY ) {};
+  while ( I2C1->ISR & I2C_ISR_BUSY ) {
+  }
 
   /* prepare dma channel for receiving data */
   DMA1_Channel2->CMAR = (uint32_t)data;
@@ -345,13 +346,13 @@ int8_t user_i2c_write(const uint8_t id, const uint8_t reg_addr, uint8_t *data, c
   I2C1->CR2 |= ( I2C_CR2_START );
 
   while ( !( I2C1->CR2 & I2C_CR2_START ) ) {};
+  I2C1->TXDR = reg_addr;
   if ((I2C1->ISR & I2C_ISR_NACKF) != 0) {
     I2C1->CR1 &= ~I2C_CR1_PE;
     while ((I2C1->CR1 & I2C_CR1_PE) != 0) {};
     I2C1->CR1 |= I2C_CR1_PE;
     return I2C_RET_NACK;
   }
-  I2C1->TXDR = reg_addr;
 
   DMA1_Channel3->CCR |= DMA_CCR_EN;
   I2C1->CR1 |= ( I2C_CR1_TXDMAEN );