As I already wrote, for my project I need some USART functionality DBGU doesn't have. For the time being I just wanted to verify USARTs are working at all and using them as serial ports on u-boot looked for me as a simplest test... Probably I was wrong...
Leonid.
-----Original Message----- From: Ulf Samuelsson [mailto:ulf@atmel.com] Sent: Monday, August 13, 2007 10:08 AM To: Leonid; 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 mail 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?
BTW, what USARTs (if any) are available on your board? At91rm9200-ek evaluation kit has USART1 connected to DB9 port.
Why not use the DBGU? I have never ever tested U-Boot with one of the std USARTs so I am not surprised if people have problems...
Thanks a lot,
Leonid.
Best Regards Ulf Samuelsson