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Forum: ARM programming with GCC/GNU tools AT91SAM7X128 don't run after reset, ARM


AT91SAM7X128 don't run after reset, ARM
von Miroslav Fiala (Guest)

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Hello, I have a problem with IAR and SAM7X128, I've tried to download
IAR example into the SAM and it works fine (blinks LEDs...) but only as
long as I don't switch the power off. After I reset the MCU by power
down, it does nothing. When I download the program into the MCU againt,
it starts to work again (till I reset it again). The program runs on
adresses about 0x00000500 so it is in FLASH not RAM...

Thank You a lot, Mirek

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Re: AT91SAM7X128 don't run after reset, ARM
von Martin T. (mthomas) (Moderator)

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Miroslav Fiala wrote:
>...
> The program runs on
> adresses about 0x00000500 so it is in FLASH not RAM...
>...

Sure? Check the settings in the IDE again, maybe it's a "RAM-debug"
setting so Code gets uploaded and remapping is done and SRAM is mapped
to 0x0. You may also check the bits in the NVM.

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