Static variables are reset after BLE sending

[TheRaven]

Hello ! I have a problem with my program (on a nRF52 board) : when I send a value to the board via BLE, it seems that my static variables are reset.

I noticed that, because in my main, I have a state machine (with a switch case), and when I send a value via BLE (8 bits or 32 bits), the program doesn't return in the good state : it returns in the initialisation case.

Do you know how can I solve this problem please ?

[TheRaven]

Edit : In fact, it seems that the whole program is re-launched, because I tested mmy code with an other code, and after sending a value on the "static void led_write_handler" (8 bits), the program restarted from scratch, apparently (I saw it with the debugger).

[TheRaven]

Edit 2 : I am wondering if the using of the debugguer in "step by step mode" is correct for the Bluetooth, because of the timout intervals, etc. So maybe it is normal that the program restarts from scratch when I use the debugguer like this, no ?

[butch]

Yes, I am pretty sure it is difficult to single step through a BT app. From my own experience, it is hard to step through any app that uses interrupts. You didn't say whether the program seems to run correctly when not single-stepping?

[Petter Myhre]

In general you cannot do single stepping when using the SoftDevice, the exception is explain here.

It sounds to me like your device is reset, which will re-init your variables. See this for more information.