>Just an idea about he UART. Have you considered the MAX31000 It's a small >SPI based >full blown UART has fifo's etc and is easy to use... I had 8 of them hanging >on a single PIC and I'm sure the SX can do the SPI thing. Hans, There's an external memory bus in this crackpot design, so it's about equally practical to use a standard memory-mapped UART chip. Problem is, there's not enough real estate... Mike Hardwick Decade Engineering www.decadenet.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu