timer not working in added .C file
i have the problem solved.
in MX by project manager -> project -> generated files select the top option (generated the peripheral initializatin as a pair.....)
this wil make that the functions uart, time (an i think more if you used them) get his own .h &.c files
before the stood in main.c..
now i included tim.h in the stepper_manual.c file......and it works 😊