Re: Arduino en FTDI drivers

[jkumin]

Ben,

Two macs, would be an option. One for use with the virtual com port FTDI drivers, one for the direct method of controlling the chip, which is the D2XX driver. If you have the VCP on your machine, however, it overrides the other kind and DMXIS can't work.  This is true across hundreds of different manufacturers of hardware accessories using FTDI's chipset. There's very little ENTTEC can do about it. 

It's worth noting that there's no such conflict on the Windows side, there both coexist happily.

Jeremy

On Monday, November 12, 2012 3:35:00 PM UTC-5, Ben Venesoen wrote:

Hi, I'm working on a mac with mountain lion installed. I use the dmxis in an installation in combination with arduino boards to control some dc motors. Since Mountain Lion I had to install ftdi drivers to connect the arduino's to my mac. Now I'm connecting the dmxis again and the software tells me the driver is preventing DMXIS from communicating with the hardware. As I said both are major parts of my installation. Uninstalling is no option. Does anyone have an idea what i could do now?

[Clay Fadden]

Ben - a fairly cheap and simple solution would be to switch to the Arduino Uno R3 board.  It does not use a FTDI chip for its USB connection to the Mac, so it plays nice with DMXIS.

Clay Fadden

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[Dave Brown]

Your message implies this used to work. What Arduino drivers were you
using prior to installing Mountain Lion? The conflict between OS X and
the FTDI COM driver is not new to 10.8, it has affected all OS X
releases since 10.5.

It may be that your Arduino installation was using the FTDI D2XX direct
access driver, and you just need to uninstall the FTDI COM driver from
Mountain Lion:

http://www.enttec.com/support-center/kb/article/000051

Dave.

On 12/11/2012 20:35, Ben Venesoen wrote:
> Hi, I'm working on a mac with mountain lion installed. I use the dmxis
> in an installation in combination with arduino boards to control some
> dc motors. Since Mountain Lion I had to install ftdi drivers to
> connect the arduino's to my mac. Now I'm connecting the dmxis again
> and the software tells me the driver is preventing DMXIS from
> communicating with the hardware. As I said both are major parts of my
> installation. Uninstalling is no option. Does anyone have an idea what
> i could do now?
>
>
>
> --
> You received this message because you are subscribed to the Google
> Groups "DMXIS_Users" group.
> To view this discussion on the web visit

> https://groups.google.com/d/msg/dmxis_users/-/_3dRdW6-OJcJ.