Oops, in my last post, I meant Sigrok software not Sump. Sump is an FPGA based logic analyzer that's yet another whole discussion
Regards, John M. Wettroth (984) 329-5420 (home) (919) 349-9875 (cell) -----Original Message----- From: TriEmbed [mailto:[email protected]] On Behalf Of John Wettroth via TriEmbed Sent: Monday, February 22, 2021 11:46 AM To: 'TriEmbed Discussion' Subject: Re: [TriEmbed] MSO may grow on you Re: Budget minded oscilloscope My 2 cents here as an owner of way too much test equipment. I agree with a lot of what has been said here. I'm not sold on the MSO idea however, I think vendors charge too much for the MSO option on what would be a cheap scope. I think a better solution is an inexpensive 4 channel scope like the Rigol and a very inextpensive USB logic analyzer, either a chinese clone of the Salae (or a real one). These can be head on Ebay for $20- way cheaper than an MSO upgrade on a scope. Logic analysis on the PC is less tedious to setup and I can look at lots of channel. I don't like USB oscilloscopes however- they're too slow and messy for quick probing. A 4 channel scope like the Rigol 1054x with some internal protocol analysis does almost everything I've ever needed. If I need to look at something more comples, I can hook up the little analyzer and use it along side. If I really need to look at Mixed signal stuff, I can trigger on a common signal. Though looking at an analog signal and a bunch of digital signals on the same screen, sounds useful, it doesn't come up that often. Most of the little logic analyzers will run the Salae software which is really excellent or an open source software called Sump which is a whole 'nother discussion. Regards, John M. Wettroth (984) 329-5420 (home) (919) 349-9875 (cell) -----Original Message----- From: TriEmbed [mailto:[email protected]] On Behalf Of Pete Soper via TriEmbed Sent: Sunday, February 21, 2021 9:15 PM To: [email protected] Subject: [TriEmbed] MSO may grow on you Re: Budget minded oscilloscope If you think you might be starting to play a long game consider getting a "mixed signal" 'scope that can capture, trigger on, and decode a set of digital signals as well as providing analog measurements, and consider I2C/SPI/UART/USART decoding essential, if only as an option (i.e. don't drop the money for something that can't eventually decode these dead common serial modes unless you know you're only dipping a toe in). I went a long time with my Rigol without an "unavoidable use case" for logic signals involved with debugging new hardware, but when those use cases finally came around it was nice to have the capability and not be looking around for another piece of equipment, most especially when you need to see what's going on with several signals at once. In about seven years I think I've topped out with two analog and seven or eight digital signals with one set of gadgets. The integration of digital and analog is a real plus, for instance where you need to jump around between figuring out a noise issue vs something basically wrong with a serial line like with I2C. And of course you can correlate analog such as with A/D converters with digital signals feeding them to sort out issues. -Pete _______________________________________________ Triangle, NC Embedded Computing mailing list To post message: [email protected] List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org TriEmbed web site: http://TriEmbed.org To unsubscribe, click link and send a blank message: mailto:[email protected]?subject=unsubscribe _______________________________________________ Triangle, NC Embedded Computing mailing list To post message: [email protected] List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org TriEmbed web site: http://TriEmbed.org To unsubscribe, click link and send a blank message: mailto:[email protected]?subject=unsubscribe _______________________________________________ Triangle, NC Embedded Computing mailing list To post message: [email protected] List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org TriEmbed web site: http://TriEmbed.org To unsubscribe, click link and send a blank message: mailto:[email protected]?subject=unsubscribe
