STM32WLExx Example LoRaWAN_End_Node wacke up and send package from external interrupt GPIO PA8

[ESchu.3]

Hello,

for the STM32WLExx and the softwarepacket STMCubeWL Example LoraWAN_End_Node i look for a solution to send a packet after an externel interrupt occurs (GPIO PA8)!

I think the cpu is waked up ftom STOP2-mode periodically by timer!

So i configure GPIO o EXTI8 and enabele Interrupt!

But what is to do to send also a packet after interrupt at GPIO PA8?

Greetings

E_T