Arduino for STM32

Solved

just put this line in setup:
maybe it help someone

OK i manage it to work simply changing the pin i used, unfortunatly i already printed 10 pcb :roll:

I have used PB3 and PB4 that is already used by jtag :(

using PB14 and PB15 work well.

As i said i used PB3 and PB4 on printed pcb... my question at this point is, there is a way to disable Jtag ...

I see that it is possible to make it work using cubeide, so it is not an hardware problem.
tm1637 and display is powered by 5v and mcu from 3.3v. The pins i used for CLK and DIO to control tm1637 have a pullup to 5v and they are 5v tollerant, so i tent to exlude hardware problems.

i see whit scope ...

Hi all, it is my first post here, i'm in search of help about using TM1637TinyDisplay.h library, that is write to work whit arduino, on my stm32f103c8t6.

It compile whitout problem, but the test scketch is'nt work, i wonder if there is something i miss.

I believe (maybe i'm wrong) that if arduino ...