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"OPT3001 Open Failed" error with BOOSTXL-SENSORS

HaeSeung Park
Intellectual 355 points
Other Parts Discussed in Thread: OPT3001

Hi, 

I build "i2copt3001_MSP_EXP432E401Y_tirtos_ccs" project by importing "C:\ti\sail_1_50_00_00__all\sail_1_50_00_00\examples\rtos\MSP_EXP432E401Y\sail\i2copt3001\tirtos\ccs" folder as CCS Project.

Then I change two objects in i2copt3001.syscfg:

  1. Use Hardware in I2C 

        "BAS Sensors BoosterPack I2C" to "Sensors BoosterPack I2C"

  2. Use Hardware in GPIO - CONFIG_GPIO_OPT3001_INT

        "None" to "Optical Interrupt" of Optical Sensor (SENSORS BoosterPack)"

Then I build the project and run it. 

I see "I2C Initialized!" message, but it failed showing "OPT3001 Open Failed!" message.

Could you kindly advise me how to solve this problem ?

Any help and advice highly appreciated in advance.

HaeSeungBOOSTXL-SENSORS & MSP-EXP432E401Y.jpg

  • 0
    TI__Expert 6800 points

    Hi HaeSeung,

    I'm assigning this thread to the MSP team since this seems to be a software issue and not an issue with the sensor itself.

    Thank you,

    Brent Elliott

  • 0 in reply to Brent Elliott
    Intellectual 355 points

    Hi,

    I solved this problem, by fixing OPT3001_writeRegister() function in opt3001.c under C:\ti\sail_1_50_00_00__all\sail_1_50_00_00\source\ti\sail\opt3001 folder as follows:

    /*
 *  ======== OPT3001_writeRegister ========
 *  Writes data to the specified register and OPT3001 sensor.
 */
bool OPT3001_writeRegister(OPT3001_Handle handle, uint16_t data,
        uint8_t registerAddress)
{
    I2C_Transaction i2cTransaction;
    uint8_t readBuffer[READ_BUF_SIZE];					// added
    uint8_t writeBuffer[WRITE_BUF_SIZE] = {registerAddress, (data >> 8), data};

    i2cTransaction.writeBuf = writeBuffer;
    i2cTransaction.writeCount = WRITE_BUF_SIZE;
//  i2cTransaction.readCount = 0;						// deleted 
    i2cTransaction.readBuf = readBuffer;                // added
    i2cTransaction.readCount = READ_BUF_SIZE;           // added
    i2cTransaction.slaveAddress = ((OPT3001_HWAttrs *)(handle->hwAttrs))->slaveAddress;

    /* If transaction success */
    if (!i2cTransferFxn(((OPT3001_Object *)(handle->object))
            ->i2cHandle, i2cTransaction)) {
        return (false);
    }

    return (true);
}

    Hoping this would be helpful.

    HaeSeung