Products > Test Equipment
New FNIRSI power supply.
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ivi_yak:
Fnirsi, is a piece of crap, guys it has no protection from the voltage flowing in on input, and once it's off, it'll go to a short input  :palm:

my item is dead for now if someone has FW pls share :-/O
Jagiro84:

--- Quote from: Fungus on February 15, 2021, 02:13:55 pm ---
--- Quote from: HKJ on February 15, 2021, 01:59:15 pm ---
--- Quote from: Fungus on February 15, 2021, 01:37:39 pm ---Can be controlled by a PC!

--- End quote ---

But only with their software on windows, I did not see any protocol description.

--- End quote ---

The screenshot shows a serial port:



If that's true then I bet it's not difficult to reverse engineer.

--- End quote ---

I have this unit and I had to replace the stm chip, a firmware is nowhere to be found, are u able to extract the firmware from the chip ? Or anyone else reading this and having this same psu unit fniris dc6006l
stepmuel:
I am in the process of writing a nice little Android app to control my FNIRSI DC6006L based on https://github.com/jcheger/fnirsi-dc580-protocol, but the serial data the device is sending has suddenly become very weird. It is mostly sending parts from previous messages again together with the updated data. Sometimes the data becomes longer and longer (by including the previous message) until it resets. And sometimes the first part of a message is skipped.

Not sure how that might be possible, but I think I might have somehow corrupted the parameter memory by sending unexpected data? It could have been accidentally setting negative voltage, or sending new voltage values too quickly. The serial port worked fine when I started developing, and I haven't connected any loads since then.

Unplugging the device doesn't fix it, and there doesn't appear to be a way to restore factory settings. Apart from sending data over serial, everything works fine.

I wanted to try updating the firmware, but I have neither the windows app, nor the firmware binary to upload. They can no longer be found on the FNIRSI website.

Does anyone still have those files and could send them to me? Or does anyone have other ideas how to fix my issue?

I am very sad about having broken my power supply, since I like it a lot and there doesn't seem to be a comparable alternative since it has been discontinued.
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