-----Original Message-----
From: Leonid [mailto:Leonid@a-k-a.net]
Sent: Monday, August 13, 2007 11:39 AM
To: Matt Gessner; u-boot-users@lists.sourceforge.net
Subject: RE: [U-Boot-Users] USART on at91rm9200
Hi, Matt:
I am using the same source code I guess and everything BUT USARTs
works
for me just fine (thanks Ulf). I have searched desperately through
archives for any known USART problems but with no avail. It would help
me tremendously if you could test USART on your board (if you have
physical connector it must be simple) just as usual RS232 and tell me
whether it works. It can be useful for yourself if you ever consider
using USARTs. And could you please send me your
u-boot/cpu/arm920t/at91rm9200/serial.c file just in case?
Yes, I suppose I could send that file to you. Give me a little time.
Are you certain you configured it properly? Did you just tell u-boot to use the USART for your output port? Did you miss some configuration in your boot setup (the code loaded into SRAM before you start) that might be causing a problem?
BTW, what USARTs (if any) are available on your board? At91rm9200-ek
evaluation kit has USART1 connected to DB9 port.
I have all 4 USARTs and the DBGU port wired in. They all work fine under linux, but again, not under u-boot; the only port used is the DBGU port under u-boot.
I'm a little curious why you aren't using the DBGU port?
Regards,
Matt