First Time measuring at work, spi-decoding….
BIG disappointement…
It decodes from the screen, what you see is what you get, if not all data are displayed, then you couldn´t see all the data in the event table…..
Turn one channel off, all data are lost - Lecroy WS3024 and EVEN the smaller, much cheaper siglent 1104 can do it, they decode it from, the memory….and this one do it like the 1054Z
Hope they correct it, so much memory inside and then decoding from the screen....
And:
The event table...You have to turn it on in the menu, good.
But:
If you press the "Back" button or if you turn on another channel, it disappears....
You have to go back in the menu and turn it on again....
Rigol, please fix it - Event table on/off only when you press the specific button.
And pretty please rigol....decode the data from the memory......PLEASE.
Slightly off topic but can anyone with a Siglent 1104X-E confirm that they can decode data that isn't visible on the screen? With the 1104X-E can you scroll back and forth between data on the screen and data off the screen and get accurately decoded data and hold the timing relationships? Or better yet, can you search and navigate decoded waveforms without just scrolling side to side? In other words, do the X-E scopes perform better than the Rigol scopes in these respects?
Slightly off topic but can anyone with a Siglent 1104X-E confirm that they can decode data that isn't visible on the screen? With the 1104X-E can you scroll back and forth between data on the screen and data off the screen and get accurately decoded data and hold the timing relationships? Or better yet, can you search and navigate decoded waveforms without just scrolling side to side? In other words, do the X-E scopes perform better than the Rigol scopes in these respects?
In my opinion serial decoding on oscilloscopes is good for quick verification that the signals are correct by seeing some meaningful serial protocol information, but if you need serious protocol decoding, then you switch to a logic analyzer. Even a cheap $10 saleae clone can do better protocol decoding than the most expensive oscilloscopes with serial decoding function.
In my opinion serial decoding on oscilloscopes is good for quick verification that the signals are correct by seeing some meaningful serial protocol information, but if you need serious protocol decoding, then you switch to a logic analyzer. Even a cheap $10 saleae clone can do better protocol decoding than the most expensive oscilloscopes with serial decoding function.
yes, i agree, until I want to use an analog source to trigger the start of a decode. That is sometimes useful.
In my opinion serial decoding on oscilloscopes is good for quick verification that the signals are correct by seeing some meaningful serial protocol information, but if you need serious protocol decoding, then you switch to a logic analyzer. Even a cheap $10 saleae clone can do better protocol decoding than the most expensive oscilloscopes with serial decoding function.
yes, i agree, until I want to use an analog source to trigger the start of a decode. That is sometimes useful.Then you can get a more expensive logic analyzer for around $150 like the Zeroplus LAP-C 16032 that can be triggered by an external signal.
Slightly off topic but can anyone with a Siglent 1104X-E confirm that they can decode data that isn't visible on the screen? With the 1104X-E can you scroll back and forth between data on the screen and data off the screen and get accurately decoded data and hold the timing relationships? Or better yet, can you search and navigate decoded waveforms without just scrolling side to side? In other words, do the X-E scopes perform better than the Rigol scopes in these respects?Is 1000 screen worths enough ?
https://www.eevblog.com/forum/testgear/siglent-sds1204x-e-released-for-domestic-markets-in-china/msg2096347/#msg2096347
Slightly off topic but can anyone with a Siglent 1104X-E confirm that they can decode data that isn't visible on the screen? With the 1104X-E can you scroll back and forth between data on the screen and data off the screen and get accurately decoded data and hold the timing relationships? Or better yet, can you search and navigate decoded waveforms without just scrolling side to side? In other words, do the X-E scopes perform better than the Rigol scopes in these respects?Is 1000 screen worths enough ?
https://www.eevblog.com/forum/testgear/siglent-sds1204x-e-released-for-domestic-markets-in-china/msg2096347/#msg2096347
Respectfully in that post it shows that Siglent is also decoding only what is on the screen.
Explanation: Siglent captured 1000 segments, but on how it is shown on those RF's pics, it is decoding every segment separately. It is not one big table with 2000 packets. It is 1000 segments with 2 packets each, and you have to go from segment to segment to decode that one.
Both Keysight 3000T and Picoscope can show all packets from all segments as one big capture. I don't know if MSO5000 or Siglent have that. Would like to know.
Later he shows long snapshot with zoom technique that shows all the packets the same time (in table) and visual decode in zoom window. This is same as Rigol.
This nonsense with phrase "decode from screen" is annoying. Only DS1000Z does that.
All other Rigols decode full buffer.
Difference is that Rigol's "full buffer size" captures only specified memory depth and no more. That is very logical to me.
Some other scopes capture memory "before and after" the screen. And they can use it. It can be useful. But not necessary. I just deliberately capture wider time segment and then move around with zoom and search.
Sad part is that Siglent 1000X-E has always running "history buffers" that are VERY useful and very understated function. It is basically always on segmented memory. That is not mentioned enough.
Explanation: Siglent captured 1000 segments, but on how it is shown on those RF's pics, it is decoding every segment separately. It is not one big table with 2000 packets. It is 1000 segments with 2 packets each, and you have to go from segment to segment to decode that one.
Both Keysight 3000T and Picoscope can show all packets from all segments as one big capture. I don't know if MSO5000 or Siglent have that. Would like to know.
2N3055, Thanks for your posts. I think they are insightful and helpful.
Can you please elaborate on / distinguish between these two comments? Thx
"Respectfully in that post it shows that Siglent is also decoding only what is on the screen.
Explanation: Siglent captured 1000 segments, but on how it is shown on those RF's pics, it is decoding every segment separately. It is not one big table with 2000 packets. It is 1000 segments with 2 packets each, and you have to go from segment to segment to decode that one."
"Sad part is that Siglent 1000X-E has always running "history buffers" that are VERY useful and very understated function. It is basically always on segmented memory. That is not mentioned enough."
[/i]
Explanation: Siglent captured 1000 segments, but on how it is shown on those RF's pics, it is decoding every segment separately. It is not one big table with 2000 packets. It is 1000 segments with 2 packets each, and you have to go from segment to segment to decode that one.
Both Keysight 3000T and Picoscope can show all packets from all segments as one big capture. I don't know if MSO5000 or Siglent have that. Would like to know.AFAIK Besides Keysight and (according to you Picoscope) I don't know any oscilloscope manufacturer which shows the decoded data from all segments in one bus table. To me this is an obvious thing to do but the only oscilloscope I had in my hands which did that was an (older) Agilent DSO7104A. OTOH the Keysight units don't have much memory compared to the competition so you are much more likely to use segments on a Keysight scope where you might be able to get away with a single acquisition on a scope with more memory.
BTW there are quite a few scopes which only do 'on screen decoding'. AFAIK most (if not all) Siglent scopes and some tests Martin72 did with his Rigol MSO5000 seem to indicate that the MSO5000 also decodes only what is on screen. One of the 'problems' associated with decoding is that it needs a parallel process and memory which runs in parallel with acquisition OR it is a post processing operation. The first needs extra hardware, the latter needs a lot of processing power especially when the oscilloscope has a lot of memory (like the MSO5000). Given the high samplerate of the MSO5000 it may not even be able to do decoding in the hardware and thus making decoding only possible as a post-processing step. If the latter is true then Rigol made a serious mistake in the hardware design.
BTW there are quite a few scopes which only do 'on screen decoding'. AFAIK most (if not all) Siglent scopes and some tests Martin72 did with his Rigol MSO5000 seem to indicate that the MSO5000 also decodes only what is on screen.
Given the high samplerate of the MSO5000 it may not even be able to do decoding in the hardware and thus making decoding only possible as a post-processing step. If the latter is true then Rigol made a serious mistake in the hardware design.
Yeah well if you know your tools, you'll know how to get the best from them.
Several comments have been made about the lack of brightness on the MSO5000 series display .
Would you still buy the Rigol MSO5074 or go with the new Keysight?
Would you still buy the Rigol MSO5074 or go with the new Keysight?