3 Replies Latest reply on Mar 8, 2012 8:29 AM by prajith.cheerakkoda

    Multi FX2 devices parallel access

    chien.nguyen

      I have 2 FX2 devices with different PIDs. Is it possible to open 2 of them for parallel control. If it so please advice how to do it

         

      Thanks

        • 1. Re: Multi FX2 devices parallel access
          prajith.cheerakkoda

           Hi,

             

                 Yes, It is. Please explain your requirement in detail so that we can help you more.

          • 2. Re: Multi FX2 devices parallel access
            chien.nguyen

            Hi PRJI, thanks for your help.

               

            Here is the situation: I have 2 controller boards which use CY7C68013A for controlling communication with PC. They are the same VID but different PID, thus CyUSB can recognize them through their PID. I have no problem control each board one of a time, but if I try to control both of them in parallel by using 2 separate threads for each device, then runtime error issues happen. I lose the board control randomly (timeout). Seem to me that I just can take control on one board at a time.

               

            On the app not of CyAPI, I find that if I open one device then it will call close() first if there is any open. This could be my problem since I try to open the handle for 2 devices in their thread. Thus if I open device 1 then will close then handle of device 2 if devece 2's opened --> lose the control of the device 2 control.

               

            I really don't know how to work around on the issue. Is there any way to get a separate handle for each device?

               

            Regards

            • 3. Re: Multi FX2 devices parallel access
              prajith.cheerakkoda

               Hi,

                 

                      It can be done. Please create a tech support case at Support>Technical Support>Create my case: so that one of our Engineers can help you on this.