HP 82165A GPIO - "TRIGGER-GETO" how..
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04-20-2021, 08:56 AM
(This post was last modified: 04-20-2021 09:48 AM by KimH.)
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HP 82165A GPIO - "TRIGGER-GETO" how..
It was raining over the weekend...
I pulled out my 82165A and a few breadboards and had some fun trying understand how the 165A "Control the World". I can use both 8-Bit ports now, one for input and one for output, Option 2. I am trying to find a way for the 71B to "trigger" an event on the port of the 165A, I use the DAVI and connect it to the trigger GETO. The DAVI reacts, but nothing gets into the buffer even though the latched value is available - no visible pulse on DACO. I suspect it has something to do with the 165A only being able to communicate one-way at a time. Does anyone here have some experience with this? Can I maybe fool the DAVI with a small delay on the GETO. Maybe this is too silly, but if someone knows, I'd take any advice. |
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HP 82165A GPIO - "TRIGGER-GETO" how.. - KimH - 04-20-2021 08:56 AM
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