GPIO configurations

[nishajain]

Hi,

I am new to SAMA5D3 programming and facing some issues while trying to change the GPIO configurations for a custom board.
My register settings are not changing/sticking so I also tried clearing WPEN bit as well but it causes to break into BootROM.

Please let me know if there is sample code to follow ?

Thanks
Nisha

[blue_z]

I am new to SAMA5D3 programming

And what else?
Usually this turns out to mean that the person is not an experienced programmer in any discipline whatsoever.
That's not necessarily a bad thing, but if you insist on concealing it, then you're a phony.

... facing some issues while trying to change the GPIO configurations for a custom board.

How do you know that this "custom board" is fully functional?
What software environment are you using: baremetal, Linux, some RTOS?

it causes to break into BootROM.

What does this mean?
What is "BootROM"?
The processor/board was reset?

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[nishajain]

I am new to SAMA5D3 programming

And what else?
Usually this turns out to mean that the person is not an experienced programmer in any discipline whatsoever.
That's not necessarily a bad thing, but if you insist on concealing it, then you're a phony.

[N]Was not sure you will provide your judgement on my knowledge based on opening sentence.
[N]But point noted will not be opening my question with above line.

... facing some issues while trying to change the GPIO configurations for a custom board.

How do you know that this "custom board" is fully functional?
What software environment are you using: baremetal, Linux, some RTOS?

[N]I believe question is for AT91Bootstrap community so it is bare metal. But sorry for confusion or wrong forum.

it causes to break into BootROM.

What does this mean?
What is "BootROM"?
The processor/board was reset?

[N]Yes above means the processor hangs very early on in (Read Only Memory) ROM (boot code).

[N]RESOLVED Above issue as the u-boot was overwriting the settings.
[N]Thanks for suggestion.



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Regards