LPC2294下的串口驱动，里面包括2294自带的两个串口控制器的驱动，和四片ST16C554的的驱动，全部采用中断方式，本程序用在产品上有两年了，没有出过问题，编程思路本人认为值得参考下-LPC2294 under the serial port driver, which include the 2294 comes with two serial controller driver, and four ST16C554 of the drive, all with interrupt, t