FTDI Community

General Category => Discussion - Hardware => Topic started by: bogus on March 05, 2019, 05:53:23 PM

Title: Cannot flash EEPROM FT232RL
Post by: bogus on March 05, 2019, 05:53:23 PM

Hi everybody,
I bought some modules with FT232RL chips and I want to flash internal EEPROM memory in these modules, but I can't. At face value all looks good, while programming I have no error but when I read out memory I see that any value did not changed. Do anyone have idea why it happends? Are these modules fake? RS232 communication works fine.

Title: Re: Cannot flash EEPROM FT232RL
Post by: FTDI Community on March 06, 2019, 04:46:36 PM

Hello,

After programming in FT_Prog did you hit the Cycle Port button?

If you are still having problems can you confirm which of our devices that you are using please? i.e a cable or a development module?

Regards,
FTDI Community

Title: Re: Cannot flash EEPROM FT232RL
Post by: bogus on March 09, 2019, 03:43:06 PM

I did that but without success. My modules look like this: https://robokitshop.in/products/ft232rl-ftdi-5v-3-3v-usb-to-ttl-converter-adapter-module-for-arduino (https://robokitshop.in/products/ft232rl-ftdi-5v-3-3v-usb-to-ttl-converter-adapter-module-for-arduino)

Title: Re: Cannot flash EEPROM FT232RL
Post by: FTDI Community on March 11, 2019, 10:49:50 AM

Hello,

This is a 3rd party product.  Since this is not one of our products, although it may utilise our device, it is difficult to offer any support on it as FTDI cannot control how the USB ICs are used and has no knowledge of the entire product.

Product Manufacturers are responsible for supporting end-users of their products, so you will need to contact the manufacturer directly. 

Please see the following document for reference:

http://www.ftdichip.com/Support/Documents/TechnicalNotes/TN_102_OEM_Technical_Support_Requirements_for_FTDI_Products.pdf

Regards,
FTDI Community