LGT8F328P Software reset

[izzzWERg]

Hello!

I am working on migrating my current project from arduino Nano to LogicGreen boards. I have managed almost everything to work properly with LG except one last thing: I need to add an option to programmable reset the board from the sketch. Code that works fine with Nano (and other AVRs)
void(* resetFunc) (void) = 0; //Programmatically reset the arduino
does not work on LGT8Fx. Are there a way that I can use? Thank you for the help.

[LaZsolt]

I found some explanations about software reset in the databook: https://raw.githubusercontent.com/dbuezas/lgt8fx/master/docs/LGT8FX8P_databook_v1.0.5-English.pdf

"Software reset: LGT8FX8P has a reset register specially triggered by software. User can reset MCU via this
software."

"Software Reset is triggered via operation at 6th bit of VDTCR register."

[dbuezas]

Jumping to the zero address should actually work too. I wonder if the bootloader gets confused somehow because some register is in the wrong state

If the suggestion from @LaZsolt doesn't work either, here are a couple of extra ways:

• Jumping via inline assembly, and
• Forcing the watchdog to trigger

https://github.com/qub1750ul/Arduino_SoftwareReset/blob/master/src/SoftwareReset.hpp

[izzzWERg]

Thank you very much for the reply. Operating with VDTCR register works very well. Here is the reset function code if someone needs it:

  void resetLG(void){
    VDTCR|=0b10000000;
    VDTCR&=0b10111111;
  }