Hi John, not used to mailing lists... replied directly instead of to the list... Sorry for that!
it is sold on ebay without a name, has some chinese writing on it ans "Analyzer 24MHz 8CH" as well as the pinout. Seller claims it to be 100% Saleae compatible. Not much inside the tiny black box. I could identify a Cypress USB controller CY7C68013A-56LTXC, 24MHz crystal, ATMHK24C02N (Atmel/Microchip?) 16k I²C EEPROM, Sunrom 3,3V LDO, 2 LEDs (labeled red & green. Green actually beeing a red one and the other remains dark) I also found out a bit more about the behaviour in PulseView up to 500kHz the amount of data actually is collected as set by the #Samples and samplerate. Time also matches (#samples * samplerate). I.e. 2 seconds for 1MSamples and 500kH Increasing the samplerate (#samples = 1M) to 1MHz yields only 41ms of data, for 2MHz I get 20,5ms in one run, 81 in the next for 6MHz i got 10ms in one attempt, 30 in the next This seems not to be consistent, but for high samplerates (>12MHz p to now I always got 10ms worth of data regardless of the #samples, except if I set it lower then, no data at all But when I acquire data on a triggered event (falling slope on D0 for instance) I get no data at all wih sample rates above 500kHz Thats about everything I found out on this soewhat erratic behaviour of my device. Maybe I get another variant for testing... Bob > Gesendet: Dienstag, 08. Februar 2022 um 17:38 Uhr > Von: "PlusNET: Subs" <s...@qcontinuum.plus.com> > An: sigrok-devel@lists.sourceforge.net > Betreff: Re: [sigrok-devel] newbie question > > Which variant of the "cheap chinese" logic analysers do you have? There > are several variants and although they are similar, they are not all > quite the same. Sigrok.org has several examples and information on > whether they are supported or not and which driver is required, but > unfortunately it has been down since at least Saturday so I can't > provide you a link at the moment. > > It could be driver related or even a hardware fault. Mine is rated up to > 24MHz and easily does 4MHz or 10MHz so yours should be able to do the > same. How many samples to capture are you setting? > > John. > > > On 08/02/2022 12:38, landro...@volloeko.de wrote: > > Hi, > > > > I am new to PulseView and am using a cheap chinese 24MHz logic analyzer. > > Whenever I set the sampling rate to above 500kHz no data is shown in the > > plot. > > Is this analyzer related or configuration related? > > > > Happy to hear what I'm doing wrong ;-) > > Bob > > > > > > _______________________________________________ > > sigrok-devel mailing list > > sigrok-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/sigrok-devel > > -- > John. > > > > _______________________________________________ > sigrok-devel mailing list > sigrok-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sigrok-devel > _______________________________________________ sigrok-devel mailing list sigrok-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sigrok-devel
