Re: Reading/Writing FT4232 EEPROM

[Ori Idan <ori@xxxxxxxxxxxxxxxxx>]

On Tue, Jun 18, 2013 at 2:13 PM, Anders Larsen <al@xxxxxxxxxxx> wrote:

Hi,

On 2013-05-28 10:25, Thomas Jarosch wrote:

On Sunday, 26. May 2013 09:54:14 Ori Idan wrote:
> I have a FT4232 mini module and I want to read/write it's EEPROM.
> I tried the utility ftdi_eeprom (on Ubuntu 12.10)
> It gave me an error on product_id so I changed it to 0x6011
> It then gave me an error on BM_type_chip I commented out this line
>
> I then tried to write the EEPROM it looked like it did but when reading
> the EEPROM back I get Checksum Error: 84c1 0000
>
> It seems that ftdi_eeprom is not compatible with FT4232
>
> How do I write the FT4232 EEPROM on Linux?

which version of ftdi_eeprom does Ubuntu 12.10 ship?

You could give the git HEAD version a try, it _should_ work.

the HEAD version indeed works; FT4232 support was added last year.

You can use ftdi_eeprom from HEAD (or v1.0) to program the chip
and still use 0.19/0.20 from your application as long as the application
doesn't use any ftdi*eeprom*() function.

(sorry for joining the discussion so late - I was away on vacation)

Where do I find the HEAD of ftdi_eeprom?

I tried developer.intra2net..com and all I could find was sources of libftdi, after compilation it gave me ftdi_eeprom ver. 0.13

So how to I find the right sources and finally be able to read and write the EEPROM?

-- 

Ori Idan

 

Cheers
Anders

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