E Robertson ha scritto:
On 2/12/08, michael trimarchi@gandalf.sssup.it wrote:
E Robertson wrote:
On 2/12/08, michael trimarchi@gandalf.sssup.it wrote:
Hi,
Do you try to load with a jtag in memory and execute it?
I don't have a jtag fitted for this as yet. I'm using the sam7 util.
Simple step:
- flash the work system
- loady <address>
put you version of u-boot and run go <address>
Once I start using sam7 util, the bootstrap code has not been executed which means the SDRAM has not been initialized. I'll have to added the lowlevel init to do that, which I might try if nothing else works.
You don't understand:
- flash all arm9load & u-boot
- loady <address> u-boot-mod
- go <address>
I'm tying this method. I had to go to kermit because I never had suscess loading serially with minicom. I had problems with kermit in the past but couldn't remember what it was... until now. I've always had fatal errors after a few bytes are transmitted. I get some error, then it tries to resend but had too many errors. I'm not really sure how to get past this as I'm configured the serial line accordingly. Is this a common "user error" problem with ckermit? I've double checked my config option with uboot docs.
It's a long time since I used minicom to load code on an AT91, nowadays I'm using an ICE debugger (called PEEDI) BTW the most common error was caused by 55 NAK errors and the upload failed. Maybe this hint can help, amybe not. http://www.koansoftware.com/en/art.php?art=68
-- Marco Cavallini | KOAN sas | Bergamo - Italia embedded and real-time software engineering Atmel third party consultant Phone:+39-035-255.235 - Fax:+39-178-22.39.748 http://www.KoanSoftware.com
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