This zip describes an AT91 USART with PDC Transmission and Reception chain.Includes main.html file for help. For use under Green Hills 3.6.1 Multi?2000 Software Tool. -This describes an porting USARTs with PDC Tr ansmission and main Reception chain.I

AT91RM9200-UC/OS-II,clock,irq,usart,pio等驱动

采用AT91RM9200的cpu，扩展第三个串口USART，通过这个串口，测试ARM与ARM的通信。此时，系统有三个可用串口，ttyS0（RS232），ttyS1（arm与arm），ttyS2（arm与AVR）-Using AT91RM9200 the cpu, expansion of the third serial port USART, through this serial port, testing, ARM and ARM communication. At this point,