Author Topic: TDS744A: Hangs with 7-segment code ".L" or segment 'f'  (Read 4383 times)

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Offline mssbidTopic starter

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Re: TDS744A: Hangs with 7-segment code ".L" or segment 'f'
« Reply #25 on: September 22, 2022, 05:03:12 pm »
More messages but no more actual info,
I see a lot more actual info. Lots of stuff which wasn't tested before.

Quote
if not intermittent is not it.
Sorry, I dont't understand.

Quote
First acqProcThermistor is tested without an answer.
Since diag continues there can be a Thermistor error with same result.
A broken thermistor will probably not stop the communication between
the two CPUs. It might come back with 0x00 or 0xFF (or whatever the
ADC range is) but not with nothing.

Quote
Next trigGtlRegisterDiag is tested with the same no answer result.
Now diag can assume it's something else since Thermistor and GtlRegister are too different.
It of course can also be just a counter.
Yes, that's possible. It might say: When the first two tests (where the acq cpu
is involved) fail so miserably, there must be something seriously wrong and
decides to not go on. It also might have kicked off trigGtlRegisterDiag before
acqProcThermistor had come back.

Honestly, I don't care ;-) Fact is, that console adapter and these error messages
helped me to find and fix the error within 30 minutes. Before I was too heavily
focussed on that 7-segment display and that took me more than 30 minutes...
 

Offline m k

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Re: TDS744A: Hangs with 7-segment code ".L" or segment 'f'
« Reply #26 on: September 22, 2022, 07:18:52 pm »
if not intermittent is not it.
Sorry, I dont't understand.

After two similar incidents they can be treated as one non intermittent fault.
That information was not available after first test so it can be treated as new information.
Advance-Aneng-Appa-AVO-Beckman-Danbridge-Data Tech-Fluke-General Radio-H. W. Sullivan-Heathkit-HP-Kaise-Kyoritsu-Leeds & Northrup-Mastech-OR-X-REO-Simpson-Sinclair-Tektronix-Tokyo Rikosha-Topward-Triplett-Tritron-YFE
(plus lesser brands from the work shop of the world)
 

Offline mssbidTopic starter

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Re: TDS744A: Hangs with 7-segment code ".L" or segment 'f'
« Reply #27 on: September 23, 2022, 04:01:13 am »
After two similar incidents they can be treated as one non intermittent fault.
That information was not available after first test so it can be treated as new information.
Well, if you like... For me the information was already available after the first test, since it
went like a phone call where the other side does not answer (instead of talking nonsense :-)).

It would be a different thing if we had a bus (like I2C or whatever) where it's possbile that
one device is broken and others not. But in our case its a straight serial link with only two
peers and if the remote end does not talk to me regarding a thermistor it won't do that for
other stuff as well (unless the software got confused).
 

Offline m k

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Re: TDS744A: Hangs with 7-segment code ".L" or segment 'f'
« Reply #28 on: September 23, 2022, 12:58:00 pm »
For me the information was already available after the first test,

For you yes, but not for the diagnostics procedure.
Advance-Aneng-Appa-AVO-Beckman-Danbridge-Data Tech-Fluke-General Radio-H. W. Sullivan-Heathkit-HP-Kaise-Kyoritsu-Leeds & Northrup-Mastech-OR-X-REO-Simpson-Sinclair-Tektronix-Tokyo Rikosha-Topward-Triplett-Tritron-YFE
(plus lesser brands from the work shop of the world)
 

Offline mssbidTopic starter

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Re: TDS744A: Hangs with 7-segment code ".L" or segment 'f'
« Reply #29 on: September 23, 2022, 02:22:35 pm »
For me the information was already available after the first test,

For you yes, but not for the diagnostics procedure.

For the diagnostics procedure as well, but it didn't honour it.
 


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