| Products > Test Equipment |
| Flood of new Agilent 82357B GPIB-USB adaptors on eBay the real deal? |
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| plesa:
--- Quote from: nightpanda on December 07, 2015, 04:01:37 pm --- --- Quote from: plesa on December 07, 2015, 03:09:00 pm ---Thanks for joining forum and posting story behind it. So the currently discussed adapters http://www.ebay.com/itm/82357B-GPIB-USB-Interface-Compatible-with-AGILENT-82357B-new-version-/251692772284?hash=item3a9a0eebbc:g:GBgAAOSw8cNUTQ1O with ID H82357 are based on one of your design? Based on yesterday test these adapters accept the measat_releaseX1.8.hex firmware uploaded by fxload. But uploading this firmware the adapter ID is changed to 82357B with SN: US12345678 Maybe this can explain why adapters does not work in Win10 at all and in Win8 they works on random basis. --- End quote --- Yes, that's the one I mentioned in my post. This guy bought two pieces from me, and then start sell his version on ebay. I also bought one unit from him, and compare the firmware file with mine and found only the ID and SN number was changed (you can simply do this by a ASCII file editor). I have also published my schematic on a local forum, so its not difficult to get all the stuffs. But what he has is a very old firmware version. Basic SCPI send and read function is ok, but not support SICL mode (not able to communicate with old HP instrument like 3458A). Not support secondary GPIB address (like R&S CUM200), no DMA mode, and no Linux support. Since we have the same hardware before 2014, the firmware file from S82357 could be used with his adapter too. And after that, I change the hardware and added another piece of EEPROM on S82357 with SN number and some other information on it. Before running the code, it compare those message and decide whether to run the code. So, after 2013, S82357 firmware file is linked with its SN number. You can not simply read firmware from one piece and upload to another piece. That's why I'm always asking customer to provide SN number for firmware upgrading. I need to generate firmware for each piece of S82357 individually. I think that explains why H82357 with my firmware not works in Win10 or win8. It just failed at SN check point. --- End quote --- Oh I get it it was not clear to me from first post. So glad to receive full refund from nettcy168 and I can put it into dust bin:) |
| bingo600:
--- Quote ---There is another gentleman helped me to try my Linux driver with his setup (he is in this thread too), I have generate 4 or 5 different version for him and he keep providing me the feedback --- End quote --- Hi Cheh :-+ Nice hearing from you again ;) So that's why i can't find any Beiming adapters on *bay anymore. /Bingo |
| eliocor:
Hi Cheh (nightpanda), I'm one of your lucky customers and I can only praise your work!!! My F82357 has always worked flawlessly. _ Elio. |
| Mosaic:
Ok, I ordered a HP82357B USB GPIB from the nettcy168 guy for 59 total. From the blog it seems the compatibles are better made than the fakes...so Ill give it a go as 'used' NI are still 3x the price. I Have an HP8753D I want to use with it. ALL his -ve revies are for the Agilent 'fakes' he has good reviews on the 'compatibles'. |
| Scottjd:
Well since I was one that bought a fake one not knowing they were flooding the market and also recently bought a real one I thought I would do a video showing some of the differences in packaging between the fake and real adapter. I can say the real one is working great so far, no problems setting it up even on Windows 10 and already having the NI Visa bus installed. Everything still installed smoothly and worked. The video is still processing for HD versions, but should be done in the next 20 minutes. https://youtu.be/NWHg_20cr7A |
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