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Author Topic: FT260 - how to read serial number?  (Read 132 times)

jaypdx

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FT260 - how to read serial number?
« on: January 10, 2022, 03:04:58 PM »

I have multiple FT260's attached to my PC and I'd like to use the serial number to tell them apart.  How can I read the serial number of each?  I don't see a function in libft260 that does this.  If this isn't possible, is there some other way to uniquely identify each FT260 attached to the system?



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Re: FT260 - how to read serial number?
« Reply #1 on: January 11, 2022, 04:57:26 PM »

Hi
You can use the FT Prog utility to read/ program the serial for these parts
https://ftdichip.com/wp-content/uploads/2021/05/FT_Prog_v3.12.11.594%20Installer.zip

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FTDI Community

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jaypdx

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Re: FT260 - how to read serial number?
« Reply #2 on: January 11, 2022, 05:06:26 PM »

How can I read the SN from my application?
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jaypdx

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Re: FT260 - how to read serial number?
« Reply #3 on: January 13, 2022, 06:46:44 AM »

Do the D2XX functions work for HID devices like the FT260?  When I call FT_ListDevices(&numDev, NULL, FT_LIST_NUMBER_ONLY), it returns numDev=0 with my FT260 EVM attached (though FT_PROG can see it just fine).
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Re: FT260 - how to read serial number?
« Reply #4 on: January 14, 2022, 08:38:45 AM »

Hi Joseph,
You have already contacted us by email.
Feel free to post any resolution here to help other community users

Regards
FTDI Community
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jaypdx

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Re: FT260 - how to read serial number?
« Reply #5 on: January 14, 2022, 09:09:58 PM »

I haven't received a resolution via email yet, but I'm thinking I can open each attached FT260 and read the configuration EEPROM via the FT260_I2CMaster_* commands.  I should be able to figure out where the serial number is stored by comparison with FT_PROG.  This only works because I have an external EEPROM on my board... I'm not sure how one would read the serial number stored inside the chip.  Is this a reasonable approach?  How does FTDI recommend differentiating between multiple FT260's connected to a system?
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