Description
Hi,
yet an other dead-lock in the multicore-fifo. I add the example archive to this issue report.
Here is what I'm doing to reproduce the lockup:
Hardware wiring:
Pin 2 (output) to toggle an IRQ on Pin 14 (input)
ADC idx 0, reading vsys value.
Software:
Repeating Timer (1s) push PROBEEVENT to the core1 waiting in multicore_fifo_pop_blocking and
a1) mirror back the event using multicore_fifo_push_blocking()
a2) Read the vsys value and print set Pin2 to low to trigger an interrupt on Pin 14
INTERRUPT Pin14
push TOGGLEIRQEVENT to core1 waiting in multicore_fifo_pop_blocking and
b1) mirror back the event using multicore_fifo_push_blocking()
b2) set Pin 2 back to high.
main()
while(true) waiting with multicore_fifo_pop_blocking() to receive and print
the event processed in core1 to UART.
Watchdog check if system is ok, or restart after 10 seconds when the lock happen.
Note:
Release build:
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -mtune=cortex-m0")
g++/gcc version 12.2.1 20221205 (15:12.2.rel1-1)
I hope the example will be helpful to find the runtime issue.
Good hunting
Chris