The "ConnectCore 6UL SBC Pro" has an interrupt line "SPI1_IRQ_N", connected to "GPIO5_08" on the SPI expansion connector. How can I use this GPIO as output?
I tried to do the following:
# echo 136 > export
# echo out > gpio136/direction
# echo 1 > gpio136/value
# cat gpio136/value
0
# echo 0 > gpio136/value
# cat gpio136/value
0
The fuses are set that the TAMPTER PINS are disabled. (Tamper 0-9 used as GPIO)
Any suggestions?
Best regards
Mario