Just #undef USEUSB in grbl.h after #ifdef STM32F103C8 or delete "USEUSB" in project properties -> C/C++ General -> Path and Symbols -> Symbols. If you want to use UART and more then 4 axis, you can ...
The logiISP Image Signal Processing Pipeline IP core is an Ultra High Definition (UHD) ISP pipeline designed for digital processing and image quality enhancements of an input video stream in ...