Is there a way to turn off the internal fifo for input on the DIO 6533(DIO-32HS) board.
I have the PCI 6533 set up with two groups handshaking one output one input. The problem is when I have input I would like to only get 1 16 bit word from my external hardware at a time. (I do not want the internal FIFO on the card to handshake in multiple words) I know that this will slow down the interface but with the external hardware I am dealing with requires me to test a discrete in between each input word.
If the answer is to turn off handshaking for the input group and still have access to the output group and the extra input / output lines on Port 4?
It looks like you will have to use one of the asynchronous handshaking methods explained in the 6533 manual attached below. Read the section named Handshaking I/O Timing Diagram. Hope it helps
