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Bit | Signal |
---|---|
0 | ATN |
1 | EOI |
2 | REN |
3 | IFC |
4 | SRQ |
5 | NDAC |
6 | DAV |
7 | NRFD |
The DAV signal is also used as the J clock signal on the analyzer pod.
The combination of ATN and EOI comes out on a separate pin on the device. This should be connected to the K clock of the next pod. The analyzer clocks should be J down OR K down.
Example trace
I connected my HP 5385A frequency counter to my HP 9825A calculator and wrote a simple loop to read the ID of the counter:
...
After the poll it UNLISTENs and UNTALKs; the other commands I do not yet know
Another try delivered this:
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More info on HP-IB: