[TriEmbed] Logic Sniffer Recommendations

[Jon Wolfe]

Get a one of the older saleas, or get a cheap copycat off ebay, and use it with Sigrock Pulseview. (You're not using any Saleae ip in this case, Sigrok uses it's own firmware).
You can record for a long, long time with that setup, though max speeds are limited to what can be streamed over usb in realtime. (Should be fast enough for your case)


-------- Original message --------
From: Michael Monaghan via TriEmbed <triembed at triembed.org> 
Date: 6/28/2016  9:18 PM  (GMT-05:00) 
To: Triangle Embedded Computing Discussion <triembed at triembed.org> 
Subject: [TriEmbed] Logic Sniffer Recommendations 

Hi everyone,
I'm in the market for a logic analyzer.  Having just used a Saleae Logic 4, I know it'll do what I need.  I know there are clones and there are options like the Logic Pirate.  I need to record 30+ seconds of RS232 to look at the bit timing which is either 8.32 microseconds or 8.8 microseconds in previous tests.
Does anyone have any recommendations for a logic analyse that will allow me to record for up to a minute at 20MHz or higher?
Background... I'm diagnosing a device that runs Async at 115200, or at least is it supposed to.  I is actually running at 120192 because the virtual UART isn't initialized correctly.  That's 4.3% on a spec tolerance of 3.3% max.   As is always the case, the vendor had more questions after I submitted the test results, so I need to run more tests.
Thanks,
Mike
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