On 17 Jul 2003 at 8:43, Brian Clewer wrote:

> The FT8U232AM has two types of driver, one is a VCP (virtual comm port) and
> the other is accessed through a dll.  The specific user information, such as
> the device name, is held on the eeprom.  I have never used them without the
> eeprom, but it does say it's optional.  It might be worth a call to support
> for this, but before you do....

        Will try installing an EEPROM.

> Try these:
> 1. You can't install both sets of drivers on one machine, so check for this
> first.

        Checked, ok.

> 2. Have you read the application note AN232-03?  This is a step by step
> installation for the drivers under W98.  It does ask that the install is on
> a fresh machine though, so you will have to read appendix A for the
> uninstall docs.  I couldn't find the app note on their site, but you can
> download it at http://www.dlpdesign.com/usb-prev/images/AN232-03.PDF

        Read that. The installation doesn't pass step one ...

> 3. It could be a problem with W98.  Try deleting the unknown device in the
> HW device manager.

        Already did that. Tried on another PC running XP. Same behavior.

> 4. Either give FTDI a call (they are quite busy) or your local distributor.
> Here in the UK it's Alpha Micro Systems in the UK and they give good support
> too.

        They said it's probably an hardware problem... Have to send them the
schematics. Have tested and re-tested the hardware. Found nothing wrong.

> Hope this helps,
> Brian.

        Thanks for your help!

        Mark



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