Utils VCP Open Error in C# Louiey 2017. 11. 7. 15:30 https://stackoverflow.com/questions/14885288/io-exception-error-when-using-serialport-openhttps://github.com/LonelyWolf/stm32/blob/master/cube-usb-cdc/cdc/usbd_cdc_if.c참고하세 저작자표시 비영리 변경금지 (새창열림)