#include "project.h" static int stdio_uart_putchar (char var, FILE * stream) { if (var == '\n') usb_serial_putchar_nowait ('\r'); usb_serial_putchar_nowait (var); return 0; } static FILE stdio_uart_stdout = FDEV_SETUP_STREAM (stdio_uart_putchar, NULL, _FDEV_SETUP_WRITE); void stdio_init (void) { stdout = &stdio_uart_stdout; usb_init(); // while (!usb_configured()) /* wait */ ; usb_serial_flush_input(); }