Amitesh Singh 821f4a49ea tests: gadget0: stm32f1 hack should be consistent ...

D+ is PA12 not PA11.  The reason this worked before, is because the line
before made PA12 output, and without setting the GPIO_ODR register
_before_ hand, this meant as soon as it was switched to output, it
received the reset value of GPIO_ODR for PA12, ie, 0.  (Effectively
doing a "free" gpio_clear(GPIOA, GPIO12)

Because GPIO11 wasn't configured to be an output, the confusing
gpio_clear(GPIOA, GPIO11) was simply configuring the pullup/down value
of the input, which was still ignored, as it was (out of reset) in input
floating mode.

Reviewed-by: Karl Palsson <karlp@tweak.net.au>

2017-09-01 21:55:32 +00:00

1.9 KiB

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