AM2634-Q1: MCAL I2C Driver hangup for bus busy

Terry Deng

Part Number: AM2634-Q1
Other Parts Discussed in Thread: AM2634

Tool/software:

Customer operate EEPROM base on AM2634 by using MCAL I2C driver. They found I2C will easily hangup issue to enter bus busy status while firmware continue running, however if set a break point on read function then firmware run well without bus busy happen.

below is the I2C waveform capture for bus busy issue happen, and the code hangup position which detect I2C status as busy.

Attachment is their code for I2C read and write operation, may we appreciate expert review if there are some mis-operation or any improvement suggestion?

2 months ago

0 Terry Deng 2 months ago

TI__Intellectual 2935 points

Does any suggesting for this issue?

I also attach API code for Cdd_I2c_SetupEB, Cdd_I2c_AsyncTransmit which customer used in application

Cdd_I2c_SetupEB.c

Cdd_I2c_AsyncTransmit.c

0 Nikhil Dasan 2 months ago in reply to Terry Deng

TI__Guru* 84926 points

Hi Terry,

There is an MCAL package which would be released on 4th of July with multiple fixes in the I2C polling mode.

Once released, please check if you are able to reproduce this issue there

Thanks and Regards,

Nikhil Dasan

0 Swathi G Bhat 2 months ago in reply to Nikhil Dasan

TI__Prodigy 10 points

Hi Terry,

I2C busy check issue is addressed and will be available as part of latest MCAL package as mentioned above. Once released, please let us know if the issue persists.

Regards,

Swathi G Bhat

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AM2634-Q1: MCAL I2C Driver hangup for bus busy