Eclipse CDT, GDB debugging with nRF51822: breaks on every line.

[Eliot Stock]

I have Eclipse CDT set up for debugging the ble_app_proximity sample code on a Mac. I can start the GDB server on the console and connect to it. Flashing the code seems to work. I've already flashed the softdevice from a Windows machine. Disconnecting GDB and powering up without debugging, I can connect to the device from the Master Control Panel on a Windows machine. So the device is working without debugging.

But when I try to debug from Eclipse, the debugger is stopping on every line within timers_init(). See thread screenshot attached. I would expect clicking the Resume (play) button to take me to my next breakpoint, or resume fully if I have no breakpoints. But no progress is made out of NVIC_SetPendingIRQ().

[Ole Morten]

I suspect what you're seeing is a consequence of Eclipse not behaving correctly with regard to reseting. Have you had a look at this and this question? I'd recommend trying to modify your startup settings, deselecting the "Load" options and do it manually instead.

[Eliot Stock]

That worked for a second and got me as far as the main loop, but seconds later I was stuck again with the debugger looking at 0x0.

[Ole Morten]

Does that mean that you still have trouble?

Did you also remove the reset from app_error_handler, and instead use some kind of infinite loop? I've sometimes seen Eclipse/GDB be confused from this.

[Eliot Stock]

Yes, still having trouble. Nope, haven't touched the code from the BLE proximity profile sample app, so the app_error_handler is just as it was.

[Ole Morten]

Sorry if I was unclear, but I meant to ask you to remove this reset, and instead use an infinite loop (or ble_debug_assert_handler, since that contains such loop).