Post Reply 
34s flashing cable possible candidate?
06-27-2014, 03:01 AM
Post: #10
RE: 34s flashing cable possible candidate?
The official standard for RS-232 requires voltage levels that go both above and below ground.
Some go as high as +- 10Volts. If the cable is designed to talk to serial port, it may generate these
high positive and negative voltages. So just because the Atmel processor in the HP-30B is 5Volt tolerant does not mean that you can just attach anything to it. It would be prudent to at least measure the cable's output pins with a volt meter to be sure it does not generate high positive or negative voltages.
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
RE: 34s flashing cable possible candidate? - BarryMead - 06-27-2014 03:01 AM



User(s) browsing this thread: 1 Guest(s)