SAM7S and IAR 5.11.

Hi,
I'm testing "basic-internalflash-project" from ek-board examples.

It works fine with "at91sam7s_ram" configuration by IAR EWARM.
However, "at91sam7s_flash" configuration is not working...

so, I traced into the code and find out the exception when excuiting EFC_PerformCommand() function.
(PC goes to the Undefined_Handler.)

EFC_PerformCommand() was defined __ramfunc.
in this case, I think that it would be fine.
it's ATMEL example project,but, the code is not working...

please tell me, why this function makes exception?

thanks

Hi

I don't known the project but maybe it is not designed to be run from FLASH? When commanding FLASH it is necessary to run the routine from SRAM - is this the case?
Also ensure that interrupts are blocked when commanding FLASH if interrupt handlers are in FLASH too.

If it is a more standard program exception you should be able to debug this quite easily in IAR - see the following guide to debugging exceptions on the SAM7:
http://www.utasker.com/forum/index.php?topic=535.0

regards

Mark

www.uTasker.com