13 May
2005
13 May
'05
6:14 p.m.
In message 4284CC63.8080405@web.de you wrote:
So the question is if you know typical mistakes which can cause accessing flash to fail, or if you know that flash chips are well known to go into pieces if there is something wrong with the busses connected to them. Any hint will be appreciated.
Are you sure that the flashes ever worked? One typical problem is that it seems quite natural to connect the D0 pin of the flash chip to the D0 pin of the data bus, etc. - which is wrong, since for the flash chip D0 is the LSB, but on PowerPC bit 0 is the MSB...
Can you access (read, erase, program) the flashes through a BDM debugger?
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
The use of anthropomorphic terminology when dealing with computing
systems is a symptom of professional immaturity. -- Edsger Dijkstra