Author Topic: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator  (Read 110172 times)

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #300 on: February 04, 2022, 09:33:35 pm »
I think I might have broke my utg932 by poking around a bit too much in the eeprom

Would you mind attaching your bin file for me to re flash mine please?
I can’t seem to activate the FM modulator  :(

My friend i only saved the following format (address, Hex, ascii) because my programming software recognizes this type of data.
It is the full content of the UTG932
See if you can rebuilt yours from the hex values.

At the end of the code (UTG900;**;60;1)  "60" means 60MHz version, "30" means 30MHz version

!!!! I don't know why the forum software insists in converting the ascii part of the "www.uni-" into an url link.  !!!!
Although the hex values are correct

Address 00007980 should be read like:
00007980 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 77 77 77 2E 75 6E 69 2D ....................www.uni-


I remember in having some problems flashing the eeprom, if I just changed the 30 to 60 and reflash the eeprom it got corrupted, but if I erase it first and then do a full write, it works 100%


Code: [Select]
00000000 55 54 47 39 4A 75 6C 20 32 32 20 32 30 32 30 20 31 34 3A 35 35 3A 30 38 00 00 00 00 UTG9Jul 22 2020 14:55:08....
00000028 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 88 C3 40 00 00 01 00 00 00 00 00 ...................@........
00000056 00 00 00 00 38 9C 7C 41 DB 74 28 67 4C E5 61 3E 00 00 00 00 65 CD 9D 41 2B 69 A4 29 ....8.|A.t(gL.a>....e..A+i.)
00000084 2B 1B 50 3E 2B 69 A4 29 2B 1B 50 3E 72 1C C7 71 1C C7 11 40 72 1C C7 71 1C C7 11 C0 +.P>+i.)+.P>r..q...@r..q....
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00007924 FF FF FF FF FF FF FF FF FF FF FF FF 55 54 47 39 30 30 3B 2A 2A 3B 36 30 3B 31 2E 30 ............UTG900;**;60;1.0
00007952 31 3B 31 2E 30 30 3B 0A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1;1.00;.....................
00007980 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 77 77 77 2E 75 6E 69 2D ....................[url=http://www.uni-]www.uni-[/url]
00008008 74 72 65 6E 64 2E 63 6F 6D 0A 0A 0A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 trend.com...................
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The following users thanked this post: DaneLaw, Dandymon

Offline Dandymon

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #301 on: February 06, 2022, 04:14:44 pm »
ptluis, my hero. You’re a lovely man, but believe it or not it didn’t fix it because I’m a bit of a silly man myself sometimes; and it appears my waveform generator was never broke.
The problem was that I had set a carrier to 60MHz and tried to use FM, whereby the frequency would go over 60MHz if the frequency was to modulate at this limit. This was the reason I couldn’t set any deviation, there is a HARD stop on 60MHz, and if I set it at 59MHz, I can use FM. Makes sense when you think about it.

Sorry to have wasted your time, however your contribution to this message board will undoubtedly help others in the future.
Thanks
 

Offline wasedadoc

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #302 on: February 06, 2022, 10:57:03 pm »
Is the complete firmware really only 8192 bytes of which less than about 550 are not 0xFF ?
 

Offline ledtester

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #303 on: February 06, 2022, 11:37:46 pm »
Is the complete firmware really only 8192 bytes of which less than about 550 are not 0xFF ?

I think it's just used to store configuration and user preferences.
 

Offline ptluis

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #304 on: February 07, 2022, 10:07:37 pm »
Is the complete firmware really only 8192 bytes of which less than about 550 are not 0xFF ?

This is not the firmware, only de contents of the eprom used to store the user settings and the configuration of the device model. I tried to modify some values around the data trying to expose some kind of hidden functions, but since I don't have a spare eprom around I had to stop trying because I'm unable to test the changes without first erase and do a full write. This takes a lot of time and reduces eprom life.
 

Offline ptluis

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #305 on: February 07, 2022, 10:09:47 pm »
ptluis, my hero. You’re a lovely man, but believe it or not it didn’t fix it because I’m a bit of a silly man myself sometimes; and it appears my waveform generator was never broke.
The problem was that I had set a carrier to 60MHz and tried to use FM, whereby the frequency would go over 60MHz if the frequency was to modulate at this limit. This was the reason I couldn’t set any deviation, there is a HARD stop on 60MHz, and if I set it at 59MHz, I can use FM. Makes sense when you think about it.

Sorry to have wasted your time, however your contribution to this message board will undoubtedly help others in the future.
Thanks

Good to know everything is fine, anyway I leave the code above for those who have corrupted eprom and to be able to revive the device.
 

Offline Yuriy V.

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #306 on: February 19, 2022, 07:32:31 am »
This generator start fails from time to time. It looks like this:

When the generator is running for a long time, some kind of relay clicks in it and the output signal disappears. The exit indicator does not turn off. After a short time, random flickering of the button backlight starts. The screen backlight does not flicker. After switching off and on, the generator works again, until the next failure.

Does anyone have similar problems?
« Last Edit: February 19, 2022, 03:42:57 pm by Yuriy V. »
 

Offline Labrat101

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #307 on: February 19, 2022, 09:56:44 am »
Make sure you are not exceeding the max output power . Ie if you have a 50 ohm dummy load and running the output higher than 10v . . Just a thought.  It does have overload protection.
"   All Started With A BIG Bang!! .  .   & Magic Smoke  ".
 

Offline Yuriy V.

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #308 on: February 19, 2022, 12:38:00 pm »
It does have overload protection.

Defenitely not. It can happen even when monitoring the output with an oscilloscope, without any load.
1 KHz, 400 mVp/p, 1 MOhm etc.

And note:
Quote
random flickering of the button backlight starts
« Last Edit: February 19, 2022, 03:43:07 pm by Yuriy V. »
 

Offline valcher

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #309 on: February 19, 2022, 04:58:48 pm »
Hi all!
I don’t know if I discovered America, maybe it was already somewhere, but if you hold down the “Utility” button on the generator turned off and turn on the power, then an invitation appears on the screen - “Place Upgrade!”. As I understand it, there may be updates for the device.
I have SW - 1.09, what versions do you have?
 

Offline Yuriy V.

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #310 on: February 19, 2022, 05:18:18 pm »
I have SW - 1.09, what versions do you have?

1.07
 

Offline valcher

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #311 on: February 19, 2022, 05:26:25 pm »
Now it remains to find out how to unload the firmware without opening the generator. :)
 

Offline Labrat101

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #312 on: February 19, 2022, 06:58:43 pm »
Hi all!
I don’t know if I discovered America, maybe it was already somewhere, but if you hold down the “Utility” button on the generator turned off and turn on the power, then an invitation appears on the screen - “Place Upgrade!”. As I understand it, there may be updates for the device.
I have SW - 1.09, what versions do you have?
That is mentioned in the full documentation . but there has not been any updates  :(  .
"   All Started With A BIG Bang!! .  .   & Magic Smoke  ".
 

Offline Labrat101

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #313 on: February 19, 2022, 07:01:58 pm »
It does have overload protection.

 :palm: O yes it does and it works very well ..
« Last Edit: February 19, 2022, 07:05:16 pm by Labrat101 »
"   All Started With A BIG Bang!! .  .   & Magic Smoke  ".
 

Offline Yuriy V.

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #314 on: February 19, 2022, 08:36:16 pm »
:palm: O yes it does and it works very well ..

In my opinion, it looks more like some kind of problem with the built-in DC-DC power converter (overheating & microcracks). This is indirectly indicated by the flickering (not blinking) of the LED backlighting of the buttons. And the relay also can release due to a voltage drop.
« Last Edit: February 19, 2022, 08:46:34 pm by Yuriy V. »
 

Offline Felipe Lacerda

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #315 on: April 05, 2022, 05:20:37 am »

At the end of the code (UTG900;**;60;1)  "60" means 60MHz version, "30" means 30MHz version


Just this change needed to unlock the 60mhz in model 932e?

Is it possible to backup the file with a CH340(3.3v)?
 

Offline JOSM

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #316 on: April 06, 2022, 08:32:18 am »
At the end of the code (UTG900;**;60;1)  "60" means 60MHz version, "30" means 30MHz version
Just this change needed to unlock the 60mhz in model 932e?

Yes, that will do it.
 

Offline Mario87

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #317 on: April 15, 2022, 10:21:13 am »
Hi all,

Thinking of picking up one of these, but does anyone know, when purchasing from BangGood, does it come with a UK power adapter? From what I have seen it comes with one of those universal adapters where you select the plug type you want in click it in place, but not seen any images or videos that show the UK plug adapter??
 

Offline ledtester

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #318 on: April 15, 2022, 02:40:59 pm »
Hi all,

Thinking of picking up one of these, but does anyone know, when purchasing from BangGood, does it come with a UK power adapter? From what I have seen it comes with one of those universal adapters where you select the plug type you want in click it in place, but not seen any images or videos that show the UK plug adapter??

In the Q&A section for the product I found this:



but you might want to confirm with Banggood just to be sure.
 

Offline 123rolle

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #319 on: May 18, 2022, 07:35:29 pm »
I guess for the current prices JUNTEK PSG9080 184€ (shipped) is a lot better deal than UNI-T UTG932 (even can be hacked) for 145€ shipped?
 

Offline hughtmccullough

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #320 on: June 03, 2022, 03:51:28 pm »
I am thinking of buying one of these but there is one requirement I have that I am not sure about.

Reading through this thread and information on other sites it seems that it is perfectly possible to upload arbitrary waveforms to the generator.  I understand that the waveforms aren't persistent and I'm happy to upload each time I use it.  I use Linux on my PC and have read that there is a method for uploading using Python based software and that it is possible to upload CSV files.  However, I haven't spotted any tools for creating the waveforms that are all that good.  What I would like to be able to do is create a list of 4096 data points in a spreadsheet, convert those to a CSV file with any appropriate header information and upload the resulting CSV file to the generator.

Is it possible to do this?
If so, what header information/formatting is required in the CSV file?
Is a single list of numbers enough or do the points have to be input as pairs?
If so, what is needed for the time coordinate as the frequency can obviously be varied in use?
Is there a Linux tool that can create files based on my spreadsheet results in a format other than CSV that would be a better way of doing this?
 

Offline ledtester

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #321 on: June 03, 2022, 04:45:03 pm »
The exact format of the .csv file might depend on the program you use.

This python program:

https://github.com/jarjuk/UTG900

looks like it could support csv as well as other formats. Here is the documentation for the arb upload command:

https://github.com/jarjuk/UTG900#arb---upload-wave-file-and-use-it-to-generate-wave

and if you look in the data directory:

https://github.com/jarjuk/UTG900/tree/main/data

you'll see an example .bsv file as well as a .csv file.

I would just ask the developer (by email or open a github issue) for specifics on how to generate waveform files for use with the program.
 

Offline hughtmccullough

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #322 on: June 03, 2022, 09:52:44 pm »
Thanks.  That was exactly what I wanted.  It looks as if it will do my job.  Now I need to get one.
 

Offline Git

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #323 on: June 20, 2022, 09:46:54 am »
If you are looking for a UT962E in the UK, there are none at the moment unless you want to spend well over the odds on Ebay. After a search, an order then cancellation with Banggood, I eventually got one from Aliexpress. There's a genuine UNI-T store on there and several other sellers. UNI-T are using a fairly slow transport with no other choice, but one seller redistributes from France and Spain, with a delivery estimate of delivery of 16 days. Banggood offered fast expedited carriage for free. I ordered and the order status said Standard carriage which is over a month. Not the first time this has happened to me there, so I cancelled and went to Ali. I don't know if it is still the case, but the suffix E on the model number is for English, no suffix is for the Chinese language model. A post in this thread suggested the firmware is now multilingual. Good luck. Don't forget the VAT :(
« Last Edit: June 21, 2022, 02:24:42 pm by Git »
 

Offline XenonEng

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #324 on: August 18, 2022, 09:38:03 pm »
I registered just to say thanks to all who discovered/implemented the hack. I now have a lovely 60Mhz func gen to replace (supplement) my ancient LFM3!

Regarding the power consumption of the unit, I noticed the current draw is around 0.8A (rising to 1A with outputs on into 50 ohms) BUT if I connect the outputs to earth referenced BNC of my oscilloscope then the current drops to 0.48A (0.56 with both outputs into 50 ohms.)

Can someone explain that one for me?

Cheers all.
 


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