最经典的串口调试助手的源码（有注释），希望对大家有帮助。,The most classic source serial debugging assistants (annotated), there is hope for everyone to help.

基于ARM9 sangsum2410a 的串口通信程序。源代码详细介绍编程步骤，有注释。-The ARM9 sangsum2410a uart sample program. The source code for detailed programming steps, annotated.