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USB Superspeed Peripherals

Anonymous
Not applicable

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?

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Anonymous
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Yes. You can do that.

   

Initially for configuring the FPGA, you can use few GPIOs from the slave FIFO interface and once after the configuration is done you can re-load the GPIF descriptors to use the GPIF as slave FIFO interface. 

   

Thanks,

   

sai krishna.

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Anonymous
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OK, thanks.

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