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ESG 44xx wait after *TRIG

Question asked by troelst on May 6, 2019
Latest reply on May 13, 2019 by troelst

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Hi,

On a ESG-4438, I want to

- turn on RF,

- TRIG a user file,

- turn off RF again as fast as possible.

I therefore want to pack a series of SCPII commands something like this:

OUTPUT 1; TRIG ; "wait" ; OUTPUT 0

But my problem is that *WAIT probably just waits for the trig to *start*. So it does not help me.

Then I have tried trigging a frame of e.g. 3 seconds duration, and polling these e.g. every 500 ms:

OPC?

STAT:OPER:COND?

But no nothing bits/status changes when sending frame is completed (3 seconds).

So atm they seems not to be candidates for the waiting...

How do I wait for the frame (user-file) to be sent?

Any hints / pointers / suggestions are greatly appreciated :-)

/Troels

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troelst May 10, 2019 2:47 AM

I have also played around with polling these values periodically while frame is transmitted.

Sadly they are stuck at zero, i.e. I can not see the any bits flipping, and thereby detect the completion of sending the frame.

"*ESR?"
"*ESE?"
"STAT:QUES:MOD:COND?"
"STAT:OPER?"
"STAT:QUES:COND?"
"*STB?"

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EricBaker

@ troelst on May 13, 2019 2:24 PM

There is RF blanking capability within the arb file. Maybe that could be used. I don't know if you've seen this: N5162A, N5182A, E4438C, E8267D Creating and Downloading Waveform Files Manual

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troelst @ EricBaker on May 13, 2019 11:50 PM

Thx for suggestion - downloading the file as ARB file might be my way forward.

1) Because of the blanking capabilities - thx

2) Because generator has a "ARB is Busy" flag (bit 10) in "STATus:OPERation:CONDition?"

"A 1 in this bit position indicates that the signal generator is currently busy
processing ARB commands"

Whether this means "busy clocking the frame out" or means "busy starting an ARB trig" , and thus is no better than the others I don't know atm.

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troelst May 14, 2019 3:25 AM

Update :

I found "STATus:OPERation:BASeband:CONDition? " on the ESG-4438.

"A 1 in this bit position indicates that the signal generator baseband generator is handling data IO."

I have not tried this yet...

And I would very much like a solution that works on 4432 also, and the above mentioned command does not exist on the 4432.

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4 Replies

troelst May 10, 2019 2:47 AM
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Correct Answer
I have also played around with polling these values periodically while frame is transmitted.
Sadly they are stuck at zero, i.e. I can not see the any bits flipping, and thereby detect the completion of sending the frame.
```
"*ESR?"
"*ESE?"
"STAT:QUES:MOD:COND?"
"STAT:OPER?"
"STAT:QUES:COND?"
"*STB?"
```
/T
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- EricBaker @ troelst on May 13, 2019 2:24 PM
  Mark Correct
  Correct Answer
  There is RF blanking capability within the arb file. Maybe that could be used. I don't know if you've seen this: N5162A, N5182A, E4438C, E8267D Creating and Downloading Waveform Files Manual
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  - troelst @ EricBaker on May 13, 2019 11:50 PM
    Mark Correct
    Correct Answer
    Thx for suggestion - downloading the file as ARB file might be my way forward.
    
    1) Because of the blanking capabilities - thx
    2) Because generator has a "ARB is Busy" flag (bit 10) in "STATus:OPERation:CONDition?"
    "A 1 in this bit position indicates that the signal generator is currently busy
    processing ARB commands"
    
    Whether this means "busy clocking the frame out" or means "busy starting an ARB trig" , and thus is no better than the others I don't know atm.
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troelst May 14, 2019 3:25 AM
Mark Correct
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Update :
I found "STATus:OPERation:BASeband:CONDition? " on the ESG-4438.
"A 1 in this bit position indicates that the signal generator baseband generator is handling data IO."

I have not tried this yet...
And I would very much like a solution that works on 4432 also, and the above mentioned command does not exist on the 4432.

/T
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ESG 44xx wait after *TRIG

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