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Author Topic: Problem with CDM driver  (Read 20620 times)


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Problem with CDM driver
« on: March 19, 2018, 11:12:23 am »

i have downloaded the CDM drivers package from your site. I'm using the
CMOD A7 35T Digilent board that uses an FTDI FT2232HQ USB-UART bridge.
All work perfectly but sometimes when i connect the board to pc there is a
conflict with driver i mean.
In detail:
- I connect the board to pc
- in device manager i can find a COM port and two USB Serial Converter
- the driver is updated and work perfectly but if i try to communicate
with board using a C program that work with ftdi.h and ftdi.dll library
nothing happen.

This problem appear randomly,in the 90% of cases the C program work
correctly but sometime happen the issue and i need to open device manager
and disinstall USB HUB and refresh hardware device, in this way the USB-HUB
is installed again and then i can communicate with board using my C

I realy don't undestand why this happen. Can you help me pls?

Regards Stefano

FTDI Community

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Re: Problem with CDM driver
« Reply #1 on: March 19, 2018, 02:31:39 pm »

Hello Stefano,

I believe one of our support engineers has replied to the email you sent to support1@ftdichip.com this morning.

Best Regards,

FTDI Community


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Re: Problem with CDM driver
« Reply #2 on: July 19, 2018, 07:52:04 am »

Wopuld have been nice to read that reply here as well though I do have some trouble whicht might point on this subject as well.