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MPU6050 reset should write 0xb00000000 to PWR_MGMT_1 instead of just writing 0b1xxxxxxx #373

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echoGee opened this issue Apr 24, 2018 · 0 comments

echoGee commented Apr 24, 2018

i2cdevlib/Arduino/MPU6050/MPU6050.cpp

Lines 2422 to 2428 in 3dc9538

    
            * @see MPU6050_RA_PWR_MGMT_1 
        
            * @see MPU6050_PWR1_DEVICE_RESET_BIT 
        
            */ 
        
           void MPU6050::reset() { 
        
               I2Cdev::writeBit(devAddr, MPU6050_RA_PWR_MGMT_1, MPU6050_PWR1_DEVICE_RESET_BIT, true); 
        
           } 
        
           /** Get sleep mode status.

should call

    I2Cdev::writeByte(devAddr, MPU6050_RA_PWR_MGMT_1, 0 ) ;

instead, because it seems to be better behaved after a power reset of the microcontroller. Better since,

the i2c bus isn't locked after a uC powercycle
The MPU6050 is able to respond to i2c calls on the address.

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