[En-Nut-Discussion] TWI interrupts on AT91SAM7x256 and Ethernut 4.6.5/4.8.0

[Ulrich Prinz]

Hi Ole!

I'd like to jump into that in a few days. I need to save nutconfig an 
other things in an onboard I2C EEPROM and like to trace the bus down to 
signal level. Our software supplie for the ongoing project had some 
issues on I2C and as time ran out for HMI demo, switched to bitbanging 
mode. Demo is based on AT91SAM7X-EK.

For another project based on SAM7X-EK we use I2C to RS485 converters. 
Here I can do some really exessive transfer tests...

Can I have some more infos about the problem?
We encountered no general hangup of I2C but from time to time we got 
bursts of 0xff flying around the I2C bus.

Bye, Ulrich

Ole Reinhardt wrote:
> Hi Ajit,
> 
>> I made some progress on this bug. It looks like there are a few issues in
>> ...
> 
> 
> Thanks for reporting this! I just fixed this issue and the one Harald
> reported a few days ago in the SVN.
> 
> Perhaps there now might be another incident with the IRQ level / edge
> sensetive setting... Unfortunatly I still don't have any I2C client to
> test my self...
> 
> Bye,
> 
> Ole
>