USB Standard I/O Example for SAM4S Xplained Documentation

Introduction

This example demonstrates how to configure a C-library Standard I/O interface to the ASF common USB Device CDC service. The initialization routines, along with board and clock configuration constants, illustrate how to perform serial I/O via a Communication Device Class (CDC) device protocol

Main Files

• stdio_usb_example.c: the example application.
• conf_board.h: board configuration
• conf_clock.h: board configuration
• stdio_usb.h: Common USB CDC Standard I/O Implementation
• read.c : System implementation function used by standard library
• write.c : System implementation function used by standard library

Description of the example

• Send message on USB CDC device to a Virtual Com Port.
• Performs echo of any received character

Contact Information

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