問題是串口接收數據不變，均為：
temp= 36.53X= 0.00,y=0.00,z=0.00,X= 0.00,y=0.00,z=1.59,
如圖：
而且只有這一個能接收數據，其他兩個都不行，如下圖：
設置端口屬性錯誤：31
硬件接線為
系統板PA9、PA10接ch340模塊；PB6、PB7作IIC的SCL和SDA，接連mpu6050。其他就是電源接線了
cubemx引腳設置如下圖：
代碼：
初始化部分
- void MPU6050_INIT ()
- {
- HAL_Delay(100);
-
- uint8_t SendAddress = 0x68;
- uint8_t SendData = 0x00; //解除休眠
- HAL_I2C_Mem_Write (&hi2c1,0xD0, SendAddress, 1, &SendData, 1, 0xff) ;
- SendAddress = 0x19;
- SendData = 0x07; //采樣率分頻器
- HAL_I2C_Mem_Write (&hi2c1,0xD0, SendAddress, 1, &SendData, 1,0xff);
- SendAddress = 0x1A; //低通濾波器
- SendData = 0x06;
- HAL_I2C_Mem_Write (&hi2c1,0xD0,SendAddress, 1, &SendData, 1, 0xff);
- SendAddress = 0x1B; //陀螺儀
- SendData = 0x08;//±500°/s
- HAL_I2C_Mem_Write (&hi2c1,0xD0, SendAddress,1, &SendData, 1,0xff);
- SendAddress = 0x1C; //加速度計
- SendData = 0x00;//±2g
- HAL_I2C_Mem_Write(&hi2c1,0xD0, SendAddress, 1, &SendData, 1, 0xff);
-
- }
- uint8_t MPU_DATA[14]={0};
- uint8_t StartAddress=0x68;
- double ACCEL_XOUT = 0.0,ACCEL_YOUT=0.0,ACCEL_ZOUT=0.0;
- double GYR0_XOUT = 0.0,GYR0_YOUT = 0.0,GYR0_ZOUT = 0.0;
- MPU6050_INIT();
- /* USER CODE END 2 */
- /* Infinite loop */
- /* USER CODE BEGIN WHILE */
- while (1)
- {
- /* USER CODE END WHILE */
- HAL_I2C_Mem_Read (&hi2c1,0xD1, StartAddress, I2C_MEMADD_SIZE_8BIT,MPU_DATA, 14, 50);
- float Temp = (MPU_DATA[6]<<8)|MPU_DATA[7];
- if(Temp >32768) Temp-=65536;
- Temp = (36.53+ Temp/340);
-
- short int ACCEL_XOUT1 = (( MPU_DATA[0]<<8) | MPU_DATA[1]);ACCEL_XOUT = (double)ACCEL_XOUT1/16384;
- short int ACCEL_YOUT1 = (( MPU_DATA[2]<<8) | MPU_DATA[3]);ACCEL_XOUT =(double)ACCEL_YOUT1/16384;
- short int ACCEL_ZOUT1 = (( MPU_DATA[4]<<8) | MPU_DATA[5]);ACCEL_ZOUT = (double)ACCEL_ZOUT1/16384;
-
- short int GYRO_XOUT1= ((MPU_DATA[8]<<8) | MPU_DATA[9]);GYR0_XOUT = (double)GYRO_XOUT1/65.5;
- short int GYRO_YOUT1=((MPU_DATA[10]<<8) | MPU_DATA[11]);GYR0_YOUT = (double)GYRO_YOUT1/65.5;
- short int GYRO_ZOUT1= ((MPU_DATA[12]<<8) | MPU_DATA[13]);GYR0_ZOUT = (double)GYRO_ZOUT1/65.5;
-
- printf("temp= %0.2f" ,Temp);
- printf("X= %0.2f,y=%0.2f,z=%0.2f," ,ACCEL_XOUT,ACCEL_YOUT,ACCEL_ZOUT);
- printf("X= %0.2f,y=%0.2f,z=%0.2f," ,GYR0_XOUT,GYR0_YOUT,GYR0_ZOUT);
- printf("\r\n");
- HAL_Delay(200);
-
- }
然后現象就是開頭所言。
求大佬解惑：
出現這樣的數據接收結果是哪里有問題？
軟件？程序？硬件？接線？設置？初始化？還是一開始的理解就有問題？
折騰了快一天了，明天再看看江科大的32視頻中關于mpu6050的部分
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