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Sonsivri
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Tapping USB?
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Ichan
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Tapping USB?
«
on:
November 18, 2015, 10:20:57 22:20 »
I need to tap (spy) a communication between a host device (not PC) and an Android device, how?
I am thinking about a similar way using a RS232 splitter, any thing out there?
-ichan
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cadence
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Re: Tapping USB?
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Reply #1 on:
November 18, 2015, 10:56:59 22:56 »
The Saleae Logic analyzer devices have a USB Protocol analyzer, billed as: 'Universal Serial Bus (USB) 2.0 (low speed and full speed)', though I've not tried that particular protocol so I can't comment on how well it does it or whether it will suit your purpose.
http://support.saleae.com/hc/en-us/articles/200284579-Supported-Protocols
I'm sure there are other options out there, but I find it an invaluable piece of kit.
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Ichan
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Re: Tapping USB?
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Reply #2 on:
November 19, 2015, 08:23:16 20:23 »
Found some info about hardware analyzer in the middle of this page:
http://janaxelson.com/development_tools.htm
But seems all are out of budget
.
I am very much interested to buy Saleae Logic 8 or Pro 8 for quite some time, if only they sell their products through Digikey then i can put it on my component shopping basket in there and save me the significant amount of shipping cost + tax and duty.
Hope they have ears in here
.
-ichan
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Gallymimu
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Re: Tapping USB?
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Reply #3 on:
November 23, 2015, 04:06:40 16:06 »
Quote from: Ichan on November 19, 2015, 08:23:16 20:23
Found some info about hardware analyzer in the middle of this page:
http://janaxelson.com/development_tools.htm
But seems all are out of budget
.
I am very much interested to buy Saleae Logic 8 or Pro 8 for quite some time, if only they sell their products through Digikey then i can put it on my component shopping basket in there and save me the significant amount of shipping cost + tax and duty.
Hope they have ears in here
.
-ichan
you know you can buy them from microchip direct as well. I don't know if that route helps you at all
BTW if you become a microchip design partner you get 45% off for dev tools like this from microchip direct. It's a pretty sweet deal.
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Ichan
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Re: Tapping USB?
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Reply #4 on:
December 06, 2015, 03:41:19 15:41 »
Digikey is the most effective route to me as they ships to Singapore freely, then from there i can get it to my place very cheaply
.
Last time i search "saleae" on Digikey i found only the old product, couple of days ago i try it again and found
THIS
- well, sold by Spark Fun and higher price.
I put one on my shopping basket there, and now waiting for it to arrive impatiently...
-ichan
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bobcat1
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Re: Tapping USB?
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Reply #5 on:
December 13, 2015, 08:37:49 08:37 »
Hi All
Here is a similar product for far less cost (6.8 USD) (found in Aliexpress - not tested by me)
http://www.aliexpress.com/item/USB-SALEAE-Logic-Analyzer-24M-8CH-24M-8-channel-buffered-supports-1-1-16/32483123776.html?spm=2114.01020208.3.20.V1kTdU&ws_ab_test=searchweb201556_4_79_78_77_82_80_62,searchweb201644_0,searchweb201560_1
All the best
Bobi
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crunx
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Re: Tapping USB?
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Reply #6 on:
December 13, 2015, 05:15:21 17:15 »
Quote from: bobcat1 on December 13, 2015, 08:37:49 08:37
Hi All
Here is a similar product for far less cost (6.8 USD) (found in Aliexpress - not tested by me)
http://www.aliexpress.com/item/USB-SALEAE-Logic-Analyzer-24M-8CH-24M-8-channel-buffered-supports-1-1-16/32483123776.html?spm=2114.01020208.3.20.V1kTdU&ws_ab_test=searchweb201556_4_79_78_77_82_80_62,searchweb201644_0,searchweb201560_1
All the best
Bobi
That analyzer seems to be a "pirate knock-off" of the Salae analyzer. I have one very similar copycat one myself. However, I am not 100% sure this one has USB decoding. (I have used mine for example for I2C decoding)
Btw. The software is likely still freely downloadable at Salae's web site
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Ichan
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Re: Tapping USB?
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Reply #7 on:
December 20, 2015, 06:58:07 18:58 »
I got the Saleae Pro 8 couple of days ago, but will not have time to play with it soon these days.
This one is really a master piece of electronic art, by seeing inside this device i respect whoever the creator of it and hope this one won't be cloned like their previous products.
-ichan
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