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Paul Berger (Canada) · (This post was last modified: 05-29-2021 06:36 PM by Paul Berger (Canada).)

(05-28-2021 07:51 AM)J-F Garnier Wrote:
(05-28-2021 03:02 AM)Paul Berger (Canada) Wrote: I have two versions of "Network Interface" cards that are apparently for 5890 gas chronographs.

Did you try to power one of these boards and access it from the HP-IL?
I once tried, but without success, no answer. I was curious to see how these boards would answer to HP-IL ID requests.

J-F

Well I tried applying power to one of the 19242-60015 and found it breaks the loop. Checking a little further I found that both the CPU and HP-IL chip are held reset so next step is to figure out where reset come from.

Found reset pin 24 of connector on card grounding that pin -reset on CPU and HP-IL chip go high but still no response.

Paul.