[U-Boot-Users] weird power-on reset problem
17 Jan
2003
17 Jan
'03
7:50 a.m.
We have a very very weird problem. When we power-on our MPC860 board, u-boot will stuck before running in RAM. But once we reset the board with the "reset push button", everything will be fine as long as we DO NOT power-off.
Obviously, there are some differences between power-on reset and internal hardware reset and those differences are where we make some mistakes.
Can anyone help us?
Thanks.
Laudney Ren
--
An expert is one who knows more and more about less and less
until he knows absolutely everything about nothing.
17 Jan
17 Jan
9:19 a.m.
In message 3E27A7CB.5020303@sjtu.edu.cn you wrote:
Obviously, there are some differences between power-on reset and internal hardware reset and those differences are where we make some mistakes.
The obvious things to look for is voltages and clocks. And check the clocks twice.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
Madness has no purpose. Or reason. But it may have a goal.
-- Spock, "The Alternative Factor", stardate 3088.7
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Laudney Ren -
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