Hi!
On 28.12.18 05:31, SZ Lin (林上智) wrote:
Tarmo Kuuse <[email protected]> 於 2018年12月27日 週四 下午10:51寫道：
<snip>
Pin is muxed as GPIO and has value 1, but it's still configured as input:
conf_gpmc_a1 = 0x27
GPIO_OE = 0xFE1FFFFF
GPIO_DATAOUT = 0x820000
Output voltage = 0.58 V
# gpioinfo gpiochip1
gpiochip1 - 32 lines:
...
line 17: "GPMC_A1" unused output active-high
This is not OK - pin should be configured as an output in the GPIO_OE register
and it should have a voltage of around 3.3 V.
This issue looks similar to this one [1], could you confirm it?
Thanks.
[1] https://github.com/brgl/libgpiod/issues/32
Yes, I confirm I have stumbled on the same issue. I had no idea that the
GPIO output is only active while the gpioset program is executing.
Specifying a --mode=wait option keeps the GPIO set as expected until the
program is terminated.
Thank you for the quick response, I guess you can close the issue with
whatever resolution marks PEBCAK.
--
Kind regards,
Tarmo Kuuse
