Mbed support usb for STM32H743VIT6

[JohnnyK (Jan Kamidra)]

Hello,

usually is good to share with us some informations about Mbed OS version, about a tool what you use and share a link of the example what you tried.

Anyway, you probably mixed something. I see above you try to setup the USB OTG aka onchip USB interface. But the code more looks like old code for old library with UART.

• The constructor is not correct, just use example from Mbed documentation - USBSerial - API references and tutorials | Mbed OS 6 Documentation
• These macros USBTX and USBRX are for the VCP debug console over UART via ST-link.

USB Serial not working in mbed-os 6

Hi there, I do not have LPC1768 but I’m working on the Nucleo-F429ZI with USB OTG and it is working. The USBSerial is set to blocking in the default. That mean it waits for a connection from opposite side, that is the reason why your code not reach the main. So until you not connect a terminal application on your pc to a correct port nothing will happen. The PC application also need manage the DTR signal. Also you can not call _printc for call a string without a for loop, the _printc(int c) …

BR, Jan