You might want to check my contribution to the files section on Yahoo. The descriptively titled 'UT040322A.zip', contains an interrupt or polled (your choice) UART driver, non-interrupt system timer, and a blinky lights program. It may be of help to you. Regards -Bill Knight the ARM Patch
Message
[lpc2000] Re: TX FIFO
2004-07-29 by Bill Knight