USB driver not installing

jmaudley · Joined: 01 Feb 2011 Posts: 32 Location: 53

Hi,

I have a CCS USB development kit (PIC18F4550) with a working CDC virtual com port connected to my laptop.

The problem I'm having is I can't get the drivers to install on other laptops (XP 32 bit).

It doesn't help that I have mislaid my development kit CD.

My understanding is that all I need is cdc_ntxp.inf.

I've copied this to the new laptop, right clicked and installed.

It doesn't load the drivers.

What am I doing wrong?

Ttelmah · Joined: 11 Mar 2010 Posts: 19538

What version compiler?.

After 5.013, no .inf file is needed. Windows already 'knows' about the VID/PID used by CCS, and includes the drivers.

Systems built with CCS USB drivers after V5.013, install immediately (provided the machine has current updates), but will not install with the old .inf file.

Just right click on the un-installed device in device manager, and say 'search for drivers' (with the machine on the net). It should find it directly from Microsoft.