-----Original Message----- From: Leonid [mailto:Leonid@a-k-a.net] Sent: Monday, August 13, 2007 12:26 PM To: Matt Gessner; u-boot-users@lists.sourceforge.net Subject: RE: [U-Boot-Users] USART on at91rm9200
On Monday, August 13, 2007 8:47 AM Matt Gessner wrote: To: Leonid; u-boot-users@lists.sourceforge.net Subject: RE: [U-Boot-Users] USART on at91rm9200
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?
This is always a possibility, but I'm working with u-boot in general
and
with this particular CPU for so long, I cannot think of something I
have
really missed. All defines are in place, I even can get serial data on USART output, but TX ready/ RX ready bits of CSR are not working somehow.
Have a look at the way that linux 2.6.20 (patched from Maxim) does things. It's possible there's a configuration or two missing.
I had an issue with USART0 once because I didn't read something carefully.