Arduino for STM32

It is a quickly written test for playing with optocouplers I added a bit to test different Serials/UARTs done in sloeber, thats why there is the first include satement // Do not remove the include below #include "Test_L4R5.h" long unsigned int currentmillis = 0; long unsigned int pastmilli...

But why do I get no output on Serial / LPUART1 as soon as CDC / SerialUSB is activated?

which board? Nucleo-L4R5ZI which error? c:/sloeber/arduinoplugin/packages/stmicroelectronics/tools/xpack-arm-none-eabi-gcc/10.3.1-2.3/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/ld.exe: C:\Users\xXxXxXxXx\Test_L4R5\Release/arduino.ar(HardwareSerial.cpp.o):(.bss.SerialLP1+0x0): ...

I have to come back to this... default HW Serial is LPUART1 on some STM32Lxxx Nucleos when I enable CDC Serial supersedes U(S)ART, I get Serial output from generic Serial on the USB VCP When I try to output something over LPUART1 using SerialLP1.print(), I get no output trying to define Hardwareseri...

thanks

I had -Og (debug), but changing it to O0 makes the debugger halt on point
Thank you very much !!

Does this mean that with -Og, there is still some optimization going on, that is deemed safe, but nonetheless interferes with the debugger?

After I got debugging to work, I now sometimes have the issue that the program does not halt at the exact position I set a breakpoint, but one or two lines later. Since I am fairly new to debugging the stm32(duino), I am not sure what can cause this behaviour. I have a slightly modified Arduino Web ...

I have no idea why, but now it works without the changes that Juraj proposed. Of course it also works with the addition of said lines to the boards.txt But you have to be cautious with newer versions of sloeber. Jantje (creator and maintainer of sloeber) introduced a boards.sloeber.txt which essenti...

I found it - must have had tomatoes on my eyes...
It is readily available in the sloeber project config menu
shame on me!

but alas, the problem remains :/

and thanks for the links!
the github smt32duino, I knew already. That is the instructions I followed - with one little difference: I had eclipse/sloeber package already installed