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On Tuesday 31 March 2009 14:42:42 wireless wrote: |
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> Mike Frysinger wrote: |
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> > what do people use for their logic analyzers needs ? i'm looking for |
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> > something that: |
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> > - is portable (smaller the better) |
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> > - usb based |
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> > - runs under Linux (preferably using open source software) |
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> > - at least 50mhz |
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> > - at least 8 probes |
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> > and no, i dont want to build my own :). i'm not a hardware hacker, plus |
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> > the thing needs to be durable when i slam it around in my bag while |
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> > traveling. |
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> > |
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> > through work i have an Acute Pocket-LA 1616, but it's Windows only. |
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> > their usb stack is custom so it requires custom windows kernel drivers |
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> > which means running under wine is a no go. and their software frontend |
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> > isnt the greatest piece of work to begin with ... |
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> |
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> If you just want to sniff usb check this out: |
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> |
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> http://www.pcausa.com/Utilities/UsbSnoop/default.htm |
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ive used usbsnoop in the past ... Linux has a nicer way of snooping USB |
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packets. but no, i'm not looking for USB stuff (my company has a real |
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expensive machine anyways for doing USB analysis). |
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> If you are looking for a full blown logic analyzer |
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> then there are many listed in most Circuit cellar magazines |
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> (embedded hackery). |
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never heard of this magazine |
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> These lower end scope/LA sometimes are limited at to what |
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> types of buss they can attach to and analyze |
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> (this assumes you are indeed using the LA |
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> as a buss analyser) such as I2C, SPI, one wire. |
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i do work with I2C/SPI often, but sometimes i'm watching gpios (so there is no |
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protocol). the current LA doesnt have bus analyzer software (as i said, it's |
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kind of crappy), so any decoding support would be a step up ;). |
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> I'll list a few from the first copy I found in the |
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> office for you: |
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> |
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> saleae.com ($149 us) |
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this looks real promising |
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> Digiview ($499) www.tech-tools.com |
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i e-mailed them and they said they dont support Linux |
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> One of the most popular devices (vendors) is |
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> bit scope. There device may suit your |
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> LA needs. |
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> |
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> www.bitscope.com/design |
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they say they fully support Linux, so i'll probably give these guys a shot |
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> Many others exist. Talk to vendor about a |
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> 30 day return policy, if you are not |
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> happy with the device. |
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i wasnt aware of this ... i'll make sure to ask :) |
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-mike |
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