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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 the |
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> thing needs to be durable when i slam it around in my bag while traveling. |
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> |
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> through work i have an Acute Pocket-LA 1616, but it's Windows only. their usb |
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> stack is custom so it requires custom windows kernel drivers which means |
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> running under wine is a no go. and their software frontend isnt the greatest |
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> piece of work to begin with ... |
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If you just want to sniff usb check this out: |
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http://www.pcausa.com/Utilities/UsbSnoop/default.htm |
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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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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'll list a few from the first copy I found in the |
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office for you: |
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saleae.com ($149 us) |
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Digiview ($499) www.tech-tools.com |
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I have not used either, as we have a very cool |
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HP Scope/128ch LA in the office.... |
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If you purchase a low end LA, make sure it works on the |
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buss/interface/circuit you are working on as many |
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are niche devices and not general purpose LA devices.... |
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I know you are not a DIY, but, many of the chip vendors |
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design projects (atmel, freescale, microchip end up |
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having entries for LA or scope or meters. Often the |
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hacker that puts it together, provides kits you |
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assemble yourself or completely finished products |
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complete with 100% source code. |
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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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www.bitscope.com/design |
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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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caveat emport! |
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hth, |
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James |
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