Hi again! I just rewrote much of the UART code to slim it down and make it more efficient. It was rather crappy because it was using a buffer library that I couldn't modify. Removed that buffer and wrote a simple ring buffer. Also modded the code to read more than the 14 bytes when a RDA IRQ occured (now reads until LSR0 is cleared). Guess what? Now it works flawlessly! Another good thing is that I just checked the Philips website (haven't looked there for a couple of weeks) and found a newly published Users Manual for the LPC213x series. It describes a new UART register that can be used to halt the Tx FIFO without resetting it. Extremly useful when implementing flow control :) Thanx for the help! /PH
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SOLVED! Re: Lost UART1 IRQ?
2005-07-19 by vajper0