At 10:32 AM 6/25/2004 +1000, Peter Mcalpine wrote:

>Hi David,
>what do you use for converting to RS232 levels?

1488/89 chips, and sometimes just transistors on the transmit side.
I frequently end up with a -5 or -12V supply anyway, so it's trivial to do a 232 driver with discretes.  When I design the power supply, I have control of noise on it's output.

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads