BIOSPSP 3.00.01.00 I2C driver busy loop in interrupt

David Luca

Other Parts Discussed in Thread: SYSBIOS

Hello,

I would like to understand what is the purpose of I2c_localEnsureIsReadyforNext and why is being called in i2cCompleteIOInIsr (i2c.c) and in I2c_completeIOedmaCallback (I2c_edma.c) which are called from interrupt handlers and adds a busy-wait that blocks everything else?

Is there a work-around?

Best regards,

David.

over 11 years ago

0 judahvang over 11 years ago

TI__Mastermind 32475 points

David,

What device are you asking this question for?

Judah

0 David Luca over 11 years ago in reply to judahvang

Expert 2795 points

Hi Judah,

Sorry, forgot to mention, it's C6748 on a custom board based on EVM. I use CCSv5.5, Sysbios 6.35, don't remember the other details since I'm not at work at the moment.

Best regards,

David.

0 David Friedland over 11 years ago in reply to David Luca

TI__Mastermind 18320 points

David,

I have moved this thread over to the device forum in hopes that it will get a faster response there.

Processors

Processors forum

BIOSPSP 3.00.01.00 I2C driver busy loop in interrupt