Hello I have a question how to manage stack in co-routine. I don’t understand how it works (means stack in co-routine) , how to set stack in co-routine etc. Might someone help me? Best regards Grzegorz K.

All co-routines use the same stack.  Normally (always?) co-routines run in the idle task.  The size of the idle task stack is set by configMINIMAL_STACK_SIZE in FreeRTOSConfig.h. Regards.