can you help me? I'm a new one. How to use this ''xprintf''? I have connected my uart2, but it's no use. Should I choose the MicroLib in keil? Or rewrite the _wrtie() and _read()? I didn't use the semihostings(use #program to removed the semihostings mode), Thank you.
P.s. My ide is keil5, and use the stm32f429 to do it. And I downloaded xprintf.c/.h from https://github.com/tmk/elm-chan_xprintf/blob/master/xprintf.c