fsl i2c master busy

adyr — Tue, 26 May 2015 15:02:26 GMT

Hi,

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,

Adrian.

Re: fsl i2c master busy

Jorge_Gonzalez — Wed, 03 Jun 2015 19:41:47 GMT

Hello Adrian Rockall:

I think your fix is valid, thank you for catching this and letting us know. I will report it immediately to KSDK developers.

Regards!,
Jorge Gonzalez

topic Re: fsl i2c master busy in Kinetis Software Development Kit

fsl i2c master busy

Re: fsl i2c master busy