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New Rigol DS1054Z oscilloscope

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pitfermi:
i tried using a usb to ttl(3.3v) dongle with putty, it couldnt decode the stream for some reason. tried all possible baudrates. thats why i wanted to troubleshoot it further utilizing the scope and freeze the stream and read a specific portion of it. the data could be corrupt or just random(test pin), not sure


--- Quote from: ebastler on September 06, 2020, 06:11:24 am ---
--- Quote from: pitfermi on September 05, 2020, 09:53:54 pm ---i have a device which has an uart interface. I am capturing the boot log using a ds1054z, i see the signal on the scope and want to decode it.
[...] is there a way to save the captured signal exactly as it was read and decode it later?

--- End quote ---

Are you sure you want to do this via the Rigol at all? If you need to analyze a larger chunk of serial data, and its timing relative to other output signals is not relevant, I would strongly recommend that you read it into a PC directly (via a serial-to-USB interface and a terminal program). Much easier to search or filter the data on the PC screen.

--- End quote ---

ebastler:
Then use the scope to figure out the data format, and subsequently the PC to read all data and look for relevant content.

For the first steps, you don't need serial decoding at all: Check the "idle" signal level (high or low); check the minimum duration of a bit to figure out the baud rate.

If you want to endable decoding on the Rigol, you can do that, and it does work on a stored trace -- decoding essentially happens during the screen display rendering, if I recall correctly. You will need to tell the scope which channel to decode, and what the signal polarity, baud rate etc. are. So it is not more "automatic" than the decoding your PC provides, and only a little more flexible (the signal polarity can be chosen). Since decoding does work from the screen contents, the Rigol scope can only decode bytes which are fully displayed on the screen, from start bit to end.

alexalr:

--- Quote from: tv84 on June 16, 2020, 09:17:33 am ---Navigational Warning

Don't flash the Z-E firmware in the old DS1000Z scope!

Because it seems Rigol made an error and it's possible to flash the 1st released version in the older machine, limiting it to 2 channels.

--- End quote ---
Thought the Chinese made a general update for the Z, E series, and it turned out Z-E is a separate model and broke its Rigol DS1054Z. The oscilloscope had firmware 00.04.04.04.03, confusing the update file, instead of DS1000Z downloaded DS1000Z-E versions 00.06.02.00 01 from here https://www.rigolna.com/firmware/. The set received an update, rebooted and as a result works, but there are no two channels, channels 1 and 2 work. Channels 3 and 4 are not enabled. As I realized - poured firmware for DS1202Z-E. Tried to upgrade with the 00.04.04.04.03 version, but the set does not see the update... Is it possible to restore DS1054Z?

tv84:

--- Quote from: alexalr on September 06, 2020, 09:33:24 am ---Is it possible to restore DS1054Z?

--- End quote ---

I think this file should solve your problem.

(It should have been Rigol to solve it...)

Report if it is ok as I don't touch this stuff for many moons.

Edit: Removed the file as Rigol (IMHO unconsciously) made it obsolete. Read next messages.

alexalr:

--- Quote from: tv84 on September 06, 2020, 10:25:26 am ---
--- Quote from: alexalr on September 06, 2020, 09:33:24 am ---Is it possible to restore DS1054Z?

--- End quote ---

I think this file should solve your problem.

(It should have been Rigol to solve it...)

Report if it is ok as I don't touch this stuff for many moons.

--- End quote ---
I managed to restore the full functioning of the oscillograph in my own way, by substituting, but now I will look at your method. Now I'm not afraid to kill the machine - everything is easily restored.
Now I will again run the device with the version for Z-E and try to bring it back to life in your way. The changes you made to the firmware file interest me.

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