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fsl i2c master busy

Question asked by Adrian Rockall on May 26, 2015
Latest reply on Jun 3, 2015 by Jorge_Gonzalez



The KSDK 1.2 fsl_i2c_master_driver created with KDS 3.0 / Pex breaks if a task tries to send or receive while another task is sending or receiving. The check for being idle sets the master->status to kStatus_I2C_Busy if it is busy but that stops the processing of the active task that is looking for kStatus_I2C_Success and from then on every access is busy.


I have changed the checks in both send and receive as follows:

    if (!master->i2cIdle)


//        return master->status = kStatus_I2C_Busy;

        return kStatus_I2C_Busy;



and then it all seems to work OK. Now the tasks can check for busy and retry without changing the current state and breaking the current process.


Have I missed something or does that look to be a reasonable fix?


Best regards,