is your app automatically stopped?
Jan 14 17:37:26 swi-mdm9x28-wp user.info Legato: INFO | gpioService[1918]/sysfsGpio T=main | gpioSysfsUtils.c gpioSysfs_SessionOpenHandlerFunc() 1176 | Assigning GPIO 8
Jan 14 17:40:09 swi-mdm9x28-wp user.info Legato: INFO | supervisor[1078]/supervisor T=main | app.c app_Stop() 3596 | Stopping app ‘gpio’
You can port your application to a helloworld application and see which line makes the printing stopped.
no I have to use command to stop
You can port your application to a helloworld application and see which line makes the printing stopped.
how to add a gpio pin other than the one from wiocfg??
you need to set +WIOCFG so that the GPIO can be used in yocto linux.
did you mean like this??
at+wiocfg=36,16,0,0,1,0,0
ERROR
I got error 
how about AT+WIOCFG=13,16
yes, it’s okay
at+wiocfg=13,16
OK
then what is the problem?
Didn’t you ask GPIO 13 in this thread?