GPIO API, rtems_semaphore_obtain fails
sbattazzo at gmail.com
Fri Oct 30 22:25:28 UTC 2015
I've gotten around to updating my rtems src from the git repo, to a new
version that includes the GPIO API commit and the Beaglebone Black BSP work
contributed by Ketul Shah.
I'm trying to simply do
sc = rtems_gpio_request_pin(LED1, DIGITAL_OUTPUT, false, false, NULL);
assert(sc == RTEMS_SUCCESSFUL);
And at runtime I see:
assertion "rtems_semaphore_obtain(gpio_bank_state[bank].lock, RTEMS_WAIT,
RTEMS_NO_TIMEOUT ) == RTEMS_SUCCESSFUL" failed: file
line 1319, function: rtems_gpio_request_pin
I have called rtems_gpio_initialize() which I see is the function that
creates gpio_bank_state[bank].lock and this has returned RTEMS_SUCCESSFUL
before the above error happens.
I have also tried this on both Rev B and Rev C Beaglebone Black hardware,
with the same result.
Any thoughts on what might cause this?
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