Howto read I2C on MPC5200 Lite

Domen Puncer domen.puncer at telargo.com
Wed Apr 4 18:49:50 EST 2007


On 21/03/07 09:34 +0100, Matthias Fechner wrote:
> Hi,
> 
> * Matthias Fechner <idefix at fechner.net> [17-03-07 09:57]:
> > ok, I can confirm that this patch fixes the problem for me too.
> > I was now able to read my I2C sensor 97388 successfully and only 2814
> > readfailures happened.
> > That means an errorrate of 2.8% that is ok for me.
> 
> I found now when it happens or better when it not happens.
> 
> I boot my icecube board via NFS. If the board is up and I unplug the
> network I get no read errors.
> If the network is connected (NFS server responding) I got read errors
> on I2C with a rate of approximatly 3-4%.
> Seems to be a problem with the network driver.

I can't reproduce your no-errors behaviour. I tried unplugging network
cable and compiling out the fec driver.


	Domen



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