[LinuxPPS] PPS and Coldfire UART

Rodolfo Giometti giometti at enneenne.com
Thu Apr 21 08:18:48 CEST 2011


On Wed, Apr 20, 2011 at 10:22:36AM -0300, Alex Guerra wrote:
> 
> Hi,
> 
> I'm new to PPS and was able to register the PPS line discipline with a 
> Coldfire UART (mcf driver). Even when the GPS is connected to the serial 
> interface pppstest  says that the source is ok but there's no PPS signal 
> (timeout). I've searched old posts and it seems that only some UARTS are 
> able to use this discipline, right?

You are right. See 8250.c in order to add PPS support to your serial
device.

Ciao,

Rodolfo

-- 

GNU/Linux Solutions                  e-mail: giometti at enneenne.com
Linux Device Driver                          giometti at linux.it
Embedded Systems                     phone:  +39 349 2432127
UNIX programming                     skype:  rodolfo.giometti
Freelance ICT Italia - Consulente ICT Italia - www.consulenti-ict.it



More information about the LinuxPPS mailing list