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Need help hacking DP832 for multicolour option.

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Spork Schivago:
Hello,

I'm sorry if this has been asked before and I'm not sure if this is the proper sub-forum to ask in.   If it's not, I apologize and maybe a moderator could move the post.   I have a Rigol 832 Programmable Power Supply.   It's been absolutely wonderful.   I found the keygen a long time ago to upgrade the unit.   One of the upgrade no longer works.   I can't remember which one but I remember reading that if I upgraded the firmware, the one option would be removed.   I wanted to know if that ever got fixed?   I can try and find out what option it was that disabled by the firmware upgrade if needed.   I can't seem to find the forum anymore with the keygen.  I thought it was here on EEVBlog.

Anyway, on to my main question.   The DP832A has a multi-colour option for the main screen.   You know, where you can have more than one colour displayed at the same time.   I was curious if there was any way to get this on the original DP832?   I'd like to keep the classic UI if at all possible.   Does anyone know if what I want is doable and if so, how I'd go about doing it?   Thank you.

Macbeth:
TBH, even the DP832A "classic" version of the DP832 screen Rigol was forced to include with its 3 colours isn't as nice as the cheaper DP832, at least to most of us. The 'A' does have colour coded buttons and front panel stuff but really all anyone is interested in are the features not the fluff.

One thing the classic DP832 has is when the output is switched off the V and A all go to 0.000 while the DP832A classic just blanks.

I would personally like Rigol to keep the voltmeter switched on much like my HP6632B does it rather than display blank or hard coded 0.000

Spork Schivago:
I thought the screens were the same.   That the screen in my DP832 is the same screen that's in the DP832A.   I thought it was just firmware or something along that route that makes it so I can only display one colour, more less, on the screen at one time.   Am I wrong in this assumption?

nidlaX:
Dump the firmware, disassemble it, add color coding.

Spork Schivago:
It doesn't have any security bits set or anything?   I guess I could always just download the firmware from their website and go from there.   Thanks.   Has this been done before?   It'd be nice if there was some sort of how-to to follow.   Perhaps I could download the firmware for the DP832A and use that as a reference.   Thanks for the information.

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