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| Recommendations on Logic Analyser for embedded debugging |
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| mianos:
I have a dreamsource labs LA. It works well. I use a mac and it works perfectly. Their ui is quite useable. I had a salea 8 channel clone and used their application for a few years. To me both work fine. The Salea may be better but it is a lot more expensive for a full unit |
| artag:
8 channels is easy to get but only good for serial protocols and simple handshakes 16 channels will cope with simple parallel buses like HPIB but not microcontrollers That's 90% of the cheap USB logic analysers out. There are one or two USB analysers that can do 32 bit, which is enough for an 8-bit microcontroller. They won't stream so they need to have a big enough memory to capture what you want. They may have minimal triggers and very likely won't have state capture, only timing. So, pretty much useless for z80/68000 era captures. You really want a traditional (ie HP or similar) with at least 64 channels and a few clocks with state capture. A timing-only analyser will use its memory up too fast if you try to use it for data/address buses. |
| pascal_sweden:
Check this thread: https://www.eevblog.com/forum/testgear/logic-analyzer-that-is-using-the-cypress-ez-usb-fx3-chip/ |
| coromonadalix:
or this https://sysprogs.com/analyzer2go/ they use many nucleo boards, the fx3 too sure its a paid SW but it doesn't cost a fortune and they are not 5v or more input tolerant be careful |
| pcprogrammer:
OP mentions Aliexpress, so here is a cheap one: https://nl.aliexpress.com/item/1005006375064581.html Plenty of these to be found there from different stores for around 5 bucks. Works with sigrok or when you don't mind pirating the saleae software. Not sure if they can be used in parallel. Only have one of them so can't try it. Should not be a problem USB wise, but the software has to support it. For looking at old computers 32 channels would be the best for scoping all the signals, but 16 is probably the minimum to be any useful. (8 data, 16 address, leaving 8 for control signals) |
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