input and output simultaneously with burst mode

[Zhichao Chen]

I am working on project to test the burst mode of a 6533 board.
I need to output data, then input these data with burst mode. I simply merge two LV examples,burst mode input.vi and burst mode output, into one Vi.
I set the output as group 0 and input as group 1. The PCLK source is internal. I also wired Ack1 to REQ2,ACK2 to REQ1,portA to port C,port b to port D. After running, the result of input data is not equal to the output data.
What's the problem?
Thanks

[bman]

Zhichao

Is the data you are getting entirely incorrect, or just part of it? Also, have you tried just doing 8-bit handshaking only using ports A and C? This may give us some more insight into what is causing the bad data.

Brian

[Zhichao Chen]

The data was incorrect at all. I also tried 8-bit handshaking.
As far as I know, the daq is signal thread. I ever used a pulse train to simulate ACK or OBF signal from external device,no problem. But if I useed a count board(6602), which is in the same computer as DIO96, to produce the pulse train, the result was wrong