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Re: Is my FT232 fake or genuine?

From mzenier@eskimo.com (Mark Zenier)
Newsgroups sci.electronics.components
Subject Re: Is my FT232 fake or genuine?
Date 2015-09-16 15:25 +0000
Organization NewsGuy - Unlimited Usenet $19.95
Message-ID <mter6m022pf@enews2.newsguy.com> (permalink)
References <2vn8vadvo7d0ii2a7172a33tbfnde2ki7e@4ax.com> <3rpfval2tj02i7l31fru65thgvs1r6kaca@4ax.com> <qmmgva1vedsq2afmibbi10vgk8rjanhr46@4ax.com> <mta7tc$59o$1@speranza.aioe.org>

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In article <mta7tc$59o$1@speranza.aioe.org>,
Computer Nerd Kev <not@telling.you.invalid> wrote:
>Robert Roland <fake@ddress.no> wrote: 
>>
>> Now I want to be able to prove that my chips are fakes so I have a
>> strong case when I try to return them to the seller. The best proof
>> would be if I could actually brick one.
>>
>> I found version 2.12.00 of the driver, installed it and connected one
>> of the chips. It works perfectly. OK, I have not actually checked if
>> any data comes out the other end, but the Windows PC detect the USB
>> device correctly every time.
>
>If you _really_ want to be sure, you'll have to remove the epoxy and
>look at the silicon die itself under a microscope. Ideally you'll
>want a known real chip (or images from the 'net of one) to compare
>with.
>
>Here's a good resource for information on how to do it, I've been
>wanting to try this myself for years: 
>http://siliconpr0n.org/wiki/doku.php?id=decap:epoxy

Isn't the chip a generic microcontroller?  The reason the
counterfits could be bricked was that they were still 
programmable and the bad driver reprogrammed some of it.  

So a device programmer or a evaluation board with a programmer for
that device that could read the suspect device would show that it's
a counterfit.  Assuming that a real FT232 device would fail to read out.


Mark Zenier  mzenier@eskimo.com  
Googleproofaddress(account:mzenier provider:eskimo domain:com)

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Thread

Is my FT232 fake or genuine? Robert Roland <fake@ddress.no> - 2015-09-12 19:30 +0200
  Re: Is my FT232 fake or genuine? legg <legg@nospam.magma.ca> - 2015-09-12 21:57 -0400
    Re: Is my FT232 fake or genuine? Robert Roland <fake@ddress.no> - 2015-09-13 12:17 +0200
      Re: Is my FT232 fake or genuine? legg <legg@nospam.magma.ca> - 2015-09-13 12:25 -0400
        Re: Is my FT232 fake or genuine? Robert Roland <fake@ddress.no> - 2015-09-13 19:21 +0200
          Re: Is my FT232 fake or genuine? legg <legg@nospam.magma.ca> - 2015-09-13 17:09 -0400
  Re: Is my FT232 fake or genuine? Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2015-09-15 05:43 -0400
    Re: Is my FT232 fake or genuine? Robert Roland <fake@ddress.no> - 2015-09-15 20:02 +0200
      Re: Is my FT232 fake or genuine? not@telling.you.invalid (Computer Nerd Kev) - 2015-09-15 22:59 +0000
        Re: Is my FT232 fake or genuine? mzenier@eskimo.com (Mark Zenier) - 2015-09-16 15:25 +0000
          Re: Is my FT232 fake or genuine? not@telling.you.invalid (Computer Nerd Kev) - 2015-09-17 22:40 +0000
          Re: Is my FT232 fake or genuine? Robert Roland <fake@ddress.no> - 2015-09-18 19:45 +0200

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