Products > Test Equipment
DG4000 - a firmware investigation
hammy:
Cool! Good work cybernet (and all others)!
So, which Rigol devices left? ;) The dg1032z/dg1062z?
ted572:
Re. bandgap, : DG4000 - a firmware investigation
: Reply #104 on: Yesterday at 06:40:38 PM »
Thank you Clayton. This was easy to use and it worked very well. I'm sure that you have made a lot of Windows users happy!
Thanks again, Ted
bandgap:
--- Quote from: AndersAnd on November 21, 2013, 08:01:04 am ---There's a dot at the end of your link before the [/url] bracket, so clicking the link doesn't work correctly.
Here's the correct link: http://www.compileonline.com/compile_c_online.php
--- End quote ---
Thanks! I've corrected my post.
-Clayton
ted572:
I Upgraded my DG4062 to a DG4202 (200 MHz), but . . .
Issue 1. What I’m seeing is that the sine wave output is flat to 100MHz within +/- ~ 0.4 dB to 100MHz, but about -1 dB @ 120MHz, ~ -2.5 dB @ 160MHz, and ~ -4.5dB @ 200MHz. The Square Wave Rise Time is about 4.1 ns, so I’m happy about that, as I believe that the extrapolated spec would be 5ns for the DG4202. But the Sine Wave level drop above 100MHz seems way out of the ordinary with the Flatness spec for the DG4162 being +/- 0.8 up to 160 MHz. Test configuration: I have the DG4000 output impedance set for 50 Ohms, used output levels of 0 and -15dBm (with the same results), and the output measurements were made with a Spectrum Analyzer and a HP RF Power Meter.
Issue 2. I also have an issue with DG4000 Screen Saver after several minutes of no activity (not making any changes on the front panel). The DS4000 comes up with a dark screen and a Rigol logo that changes position on the screen every 5 seconds, or comes up with Rigol in a single fixed position, or comes up with a blank screen. I didn’t notice this behavior before. Hopefully this issue is simply in the version 00.01.06.00.02 of software/firmware and others with/without this upgrade patch are experiencing this also (?).
System Info: Device Model - DG4062/DG4202, Serial Number - DG4D152xxxxxx, Software - 00.01.06.00.02, FPGA - 00.01.07.09, Hard - 01.03, Keyboard - 05.01, and Enc FPGA – 06.
I was able to successfully recovery the original DG4062 configuration by using the ‘cegen’ Keygen in reverse (DG4202 to DG4062).
The Screen Saver operation is the same. And by the way it kicks in after 15 minutes of no front panel activity. Out of 8 tests the Rigol Logo froze twice. So does this mean it is due to a firmware bug and was there before using ‘cengen’? Probably. . . Has this issue been reported by anyone else?
Please, any thoughts or comments would be appreciated.
cybernet:
--- Quote from: ted572 on November 21, 2013, 10:54:43 am ---I Upgraded my DG4062 to a DG4202 (200 MHz), but . . .
Issue 1. What I’m seeing is that the sine wave output is flat to 100MHz within +/- ~ 0.4 dB to 100MHz, but about -1 dB @ 120MHz, ~ -2.5 dB @ 160MHz, and ~ -4.5dB @ 200MHz. The Square Wave Rise Time is about 4.1 ns, so I’m happy about that, as I believe that the extrapolated spec would be 5ns for the DG4202. But the Sine Wave level drop above 100MHz seems way out of the ordinary with the Flatness spec for the DG4162 being +/- 0.8 up to 160 MHz. Test configuration: I have the DG4000 output impedance set for 50 Ohms, used output levels of 0 and -15dBm (with the same results), and the output measurements were made with a Spectrum Analyzer and a HP RF Power Meter.
Issue 2. I also have an issue with DG4000 Screen Saver after several minutes of no activity (not making any changes on the front panel). The DS4000 comes up with a dark screen and a Rigol logo that changes position on the screen every 5 seconds, or comes up with Rigol in a single fixed position, or comes up with a blank screen. I didn’t notice this behavior before. Hopefully this issue is simply in the version 00.01.06.00.02 of software/firmware and others with/without this upgrade patch are experiencing this also (?).
System Info: Device Model - DG4062/DG4202, Serial Number - DG4D152xxxxxx, Software - 00.01.06.00.02, FPGA - 00.01.07.09, Hard - 01.03, Keyboard - 05.01, and Enc FPGA – 06.
I was able to successfully recovery the original DG4062 configuration by using the ‘cegen’ Keygen in reverse (DG4202 to DG4062).
The Screen Saver operation is the same. And by the way it kicks in after 15 minutes of no front panel activity. Out of 8 tests the Rigol Logo froze twice. So does this mean it is due to a firmware bug and was there before using ‘cengen’? Probably. . . Has this issue been reported by anyone else?
Please, any thoughts or comments would be appreciated.
--- End quote ---
@screensaver - no issues for me - tried with FW 03, 06 and 07 - i doubt the mod interferes with the screensaver in any way.
@flatness - you will probably have to do a manual cal -> pw is 2010 - im no expert on that matter, but a Vrms meter should be sufficient, it seems to output different sines at different offsets/frequencies and expects you to correct the values shown in the tables - some of the tables are actually called "flatness" - so i would assume thats what can be used to tune it up to 160MHZ if not 200MHZ
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