[En-Nut-Discussion] AT91SAM7x PPP

Chris Gude cg at tis-net.de
Fri Aug 15 11:20:34 CEST 2008

Some time ago I discovered a "failure" in the old ppp-driver which 
occured when using ppp with hardware-handshake on. The failure was, that 
the flag for the flank-triggered interrupt was somehow overriden. 
Instead of triggering on a falling flank it triggered on low-level and 
got stuck.
Another failure appeared as I connected the Ethernut-Board via a modem 
to a Windows PC as it sends a long option. Because of that Nut/OS 
overrides some data in the paket and gets stuck in a endless loop, as it 
needs this data to go onwards.

Maybe on of these failures could be the reason why it doens't work on 
the AT91SAM7X. But that should only occur, when you changed the 
hardware-handshake flag or if you connected the new board to another device.



Szemző András schrieb:
> hi,
> There is an experimental driver in the dist, what is for uart1. It doesn't
> work in the current state on uart0, but it's not a big deal to modify.
> The ppp example has to be work with this driver after some slight
> modification on the PPPDEV, PPPCOM defines. 
> Regards,
> Andras
>> -----Original Message-----
>> From: en-nut-discussion-bounces at egnite.de 
>> [mailto:en-nut-discussion-bounces at egnite.de] On Behalf Of Jae Kim
>> Sent: Friday, August 15, 2008 12:00 AM
>> To: en-nut-discussion at egnite.de
>> Subject: [En-Nut-Discussion] AT91SAM7x PPP
>> Hi,
>> Does the PPP stack work on the AT91SAM7X platform?  I'm 
>> asking because the pppc sample only works with the ATmega128 
>> processor.
>> Thanks,
>> Jae
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