1 Reply Latest reply on Jan 7, 2016 1:40 PM by userc_40608

    Using two different GPIF interfaces in one Firmware application

      Hi,

         

      I was wondering if it possible to include two different GPIF interfaces into one FW application?

         

      Basically it should work like that:

         

      A command handler checks for commands. If "command 1" is received it shall load GPIF interface #1, if "command 2" is received it will load GPIF interface #2. 

         

      I will of course rename the state machines in the generated  config headerfile in order to avoid name conflicts.

         

      Just wondering if anybody has experiences with dynamically reconfiguring the GPIF interface ...

         

      best, Rene

        • 1. Re: Using two different GPIF interfaces in one Firmware application

          Similar question: I'm using a EZ-USB FX2LP with an existing design that has a 8 bit, async, external memory and a 16 bit slave FIFO.  I want to implement this design using the CYUSB301X, but it doesn't appear that the GPIOII will allow both.  As Gene asked, can I switch between two different GPIF interfaces as I only need the external memory after reset and then only need the slave FIFO after a DSP has booted from the external memory.