Products > Test Equipment
Rigol DP832 - Firmware list and bugs
Omikron:
--- Quote from: shrek on May 29, 2015, 01:24:01 pm ---Has anyone tried to hack the DP832's ANALOG board? Any luck with JTAG and full memory dump of the controller?
--- End quote ---
Hack it to what end? What else would you imagine could be achieved?
Macbeth:
--- Quote from: Omikron on May 29, 2015, 10:29:11 pm ---Hack it to what end? What else would you imagine could be achieved?
--- End quote ---
Well you can up the bandwidth of a 60MHz Oscilloscope to 200MHz easily with a software hack. That means a 195W PSU could be turned into a 650W with a firmware tweak or a keygen obviously. I mean these are modern digital PSU's with Arduinos inside. Not some old rubbish like Power Designs or Lambda. You have to change all the valves and transformers in them, innit? :palm:
Omikron:
--- Quote from: Macbeth on May 30, 2015, 01:37:36 am ---
--- Quote from: Omikron on May 29, 2015, 10:29:11 pm ---Hack it to what end? What else would you imagine could be achieved?
--- End quote ---
Well you can up the bandwidth of a 60MHz Oscilloscope to 200MHz easily with a software hack. That means a 195W PSU could be turned into a 650W with a firmware tweak or a keygen obviously. I mean these are modern digital PSU's with Arduinos inside. Not some old rubbish like Power Designs or Lambda. You have to change all the valves and transformers in them, innit? :palm:
--- End quote ---
This was precisely my point, but I was trying to tease out what shrek had in mind in the first place.
Sparky:
Hi all!
I have been busy for sometime and finally got around to updating the first post. :) I have noted several things from the thread including 01.14 firmware release, report of coupled AC voltage between Earth and output terminals, report of CH3 OCP bug (thanks kjdotts) and fix in 01.14 (thanks vovets), and Python calibration script by bson (port of LaurentR's MATLAB script). Thanks to everyone with the updates!
Below I have attached the latest available release notes that came with firmware 01.14, and I can confirm that all options are enabled after installing this release.
Folks, let's try to keep this thread on-topic: posts related to DP832 firmware, bugs and closely related. Issues of DM3068 and SCPI should be posted in a new thread so as to not derail this one. Thanks!
Best,
Sparky
shrek:
--- Quote from: Omikron on May 31, 2015, 08:55:11 pm ---
--- Quote from: Macbeth on May 30, 2015, 01:37:36 am ---
--- Quote from: Omikron on May 29, 2015, 10:29:11 pm ---Hack it to what end? What else would you imagine could be achieved?
--- End quote ---
Well you can up the bandwidth of a 60MHz Oscilloscope to 200MHz easily with a software hack. That means a 195W PSU could be turned into a 650W with a firmware tweak or a keygen obviously. I mean these are modern digital PSU's with Arduinos inside. Not some old rubbish like Power Designs or Lambda. You have to change all the valves and transformers in them, innit? :palm:
--- End quote ---
This was precisely my point, but I was trying to tease out what shrek had in mind in the first place.
--- End quote ---
Hello guys, thanks for responding. Sorry about delay in my reply, but this was a long weekend. :)
When I asked the question, I was referring to reverse engineering of the analog subsystem of DP832. I have a problem with my unit, where CH2 and CH3 stopped working, showing 0V on the outputs. My diagnose is that the micro's DAC is dead, since I get nothing on the output. Digital part seems OK, responsive to firmware upgrade procedure. And yes, the warranty is gone... since some time ago. The unit is way too heavy, so sending it off to the nearest repair center is as expensive as like half of the new unit! :palm:
My question was actually asking if somebody used the Analog Micro's JTAG, and was it successful, meaning, was the firmware readable or not, all sectors or just a piece... or not... everything worked fine afterwards?
I am getting the replacement for the microcontroller from Farnell soon, but it will be blank, so I'll need to flash it with something. Would be the simple copying back "the fallen one's" dump file work or not?
I believe the calibration tables are stored in the micro's flash, along with original, factory calibrated values. If somebody has a different opinion or experience, please come back to me.
And yes, Dave was right when criticised some of design solutions of DP832 in his video. And what I hate there on the board is erasing chip markings... why for God's sake? We are not going to clone their babies, just to fix them when they're "sick"!
Regards,
Shrek
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