2 Replies Latest reply on Oct 14, 2012 12:29 PM by pat.crowe

    Using GPIO pins reserved for Slave FIFO


      I would like to use a 32 bit wide synchronous slave FIFO interface with my FX3 circuit. This reserves a large number of pins.

      Before the slave FIFO interface is put into operation, I would like to borrow two or three of these pins (marked GPIO) in order to have enough pins to configure my FPGA. Can I temporarily configure these pins as Simple IO, on the fly even after the GPIO-2 configuration data has been loaded? Or does the GPIO-2 configuration data override?