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contents mismatch

Juergen Moser

Hello,

I have a lot of errors during programming the AT91SAM9260 (external NOR flash)

e.g.

0x10000000H contents mismatch at (Flash=FFH) (Required=18H)

I use NCS0 from the controller - if I take a look into the memory table for the processor then I see that the first EIB starts at 0x1000 0000. Moreover I use NRD and NRW0 and CS0 for the controller.

I use this NOR flash (S29GL032A90TFIR10):
pdf1.alldatasheet.com/.../S29GL032A90TFIR10.html

I can see the activity at the pins (address lines, CS, NRD and NRW as well as NCS0 (the reset impulse when I start downloading via jtag)..

in Keil I use the algorithm AM29x128 Flash (16M). I'm able to erase the full chip... but is it possible that uvision will not leave me a message if the "full chip erase" failed?

best regards
J.M.

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