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.
could it be that there's no algorithm for this flash memory?
www.keil.com/.../ulink_su_newalgorithms.htm
ok I think I found the reason for this behaviour. The data lines are not able to pull down the voltage to 0V if data are transmitted.
The only IC on the EBI is the flash-IC so the traces are not long.
best regards Juergen Moser