WiringPi double initialization

[rpp0]

Hi, it seems something changed in the WiringPi library that causes the following runtime error:

$ ./thethingsnetwork-send-v1 
wiringPiSetup*: You must only call this once per program run. This is a fatal error. Please fix your code.

I fixed it by commenting out

lmic_pi/lmic/hal.c

Line 18 in c4a7c20

wiringPiSetup();

Additionally, in the example there is another call to wiringPiSetup() which needs to be commented out.

[sbisca]

Hi, i'm having the same issue. I also commented the line #130 but still seems doesn't work..

void setup() {
  // LMIC init
  wiringPiSetup();

[rpp0]

Do you get the same error after commenting the line? Perhaps you forgot to rebuild the library (remove the .o files and compile again) or there's another wiringPiSetup() somewhere in the code.

[sbisca]

As you can see here, i commented that line, removed the file and runned make again, than executed. But still same error..

pi@raspberrypi:~/lmic_pi-master/examples/thethingsnetwork-send-v1 $ rm thethingsnetwork-send-v1
rm: remove write-protected regular file ‘thethingsnetwork-send-v1’? y
pi@raspberrypi:~/lmic_pi-master/examples/thethingsnetwork-send-v1 $ ls
Makefile  thethingsnetwork-send-v1.cpp  thethingsnetwork-send-v1.ino
pi@raspberrypi:~/lmic_pi-master/examples/thethingsnetwork-send-v1 $ sudo make
cd ../../lmic && make
make[1]: Entering directory '/home/pi/lmic_pi-master/lmic'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/pi/lmic_pi-master/lmic'
cc -I../../lmic -o thethingsnetwork-send-v1 thethingsnetwork-send-v1.cpp ../../lmic/*.o -lwiringPi
pi@raspberrypi:~/lmic_pi-master/examples/thethingsnetwork-send-v1 $ sudo ./thethingsnetwork-send-v1
wiringPiSetup*: You must only call this once per program run. This is a fatal error. Please fix your code.
pi@raspberrypi:~/lmic_pi-master/examples/thethingsnetwork-send-v1 $ ls
Makefile  thethingsnetwork-send-v1  thethingsnetwork-send-v1.cpp  thethingsnetwork-send-v1.ino
pi@raspberrypi:~/lmic_pi-master/examples/thethingsnetwork-send-v1 $