a chip bug

Discussions around product based on ARM Cortex M7 core.

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linuxjiahuo
Posts: 11
Joined: Mon Sep 07, 2015 4:18 am

a chip bug

Thu Dec 10, 2015 11:27 am

hi, MR:
I use PD0 as a output pin. When I initialise it in the board_init function, I find that after I programed the sams70 chip, it can not start normally . Even if I program it again, the program software note me program failed. I have tried sams70q20 and sams70q21, and they all occurs.
I trace the code, and find that the code stops here: {ioport_set_pin_dir}->{arch_ioport_set_pin_dir}->{base->PIO_OER = arch_ioport_pin_to_mask(pin)}. But other PD pins are ok.
Why?Anyone can explain?
Thank you.

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