Subject:
|
MAX232 help
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Tue, 30 Mar 1999 22:55:27 GMT
|
Original-From:
|
Eric Smiley <ebs4@acpub.duke&nomorespam&.edu>
|
Reply-To:
|
ebs4@acpub.=nomorespam=duke.edu
|
Viewed:
|
1076 times
|
| |
|
|
Hello, I just began construction on my Interface/charger board and all
of the preliminary test voltages check out as expected except for the
voltage at pin 3 of J9 when pin 6 is jumpered to pin 10 of the MAX232
chip. Do you have any suggestions? What problems is this going to
cause and how can I resolve them? When I measure the voltage at pin 3
of J9 with no jumper present, the voltage checks out at -9 volts, when I
jump the two pins on the chip, the voltage is around -1 instead of +10.
Thank you for your help
Eric
--
/-----------------------------------------------------------------------\
Eric Smiley
Duke University
Delta Kappa Epsilon
House 1C1 rm. 202
: - ) BOX 96859 ( - :
Durham, NC 27708-6859
ebs4@acpub.duke.edu
919-613-1839
\-----------------------------------------------------------------------/
|
|
1 Message in This Thread:
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
