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Subject: Asynchronous FIFO mode

From: "Marko Cebokli" <marko.cebokli@xxxxxxx>
To: <libftdi@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 10 Jun 2019 13:36:44 +0200

Hello!

 

I would like to use the asynchronous 245 mode FIFO (data clocked into the FTDI chip by the WR# line) on a FT2232H.

 

According to the data sheet, this mode needs to be enabled in the EEPROM.

 

The program “eeprom” from the examples directory told me that the eeprom is empty, so I wrote the defaults with the –w switch.

Now, it says that channel A has mode UART.

 

How can I change that to FIFO mode?

 

I can extract the eeprom to a binary file with

ftdi_eeprom –read_eeprom

I could probably edit the binary file, but how do I write it back?

 

Or is there a more elegant way?

 

Marko Cebokli

 

 

 



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