Configure a bi-directional port and read/write from it in DIO-96 card

[vtran]

I am using DIO-96 card and new to LABWindows, would anybody please help with the question below:

How can I configure an 8 line port to be bi-directional in MAX and perform write to all 8 lines and read them from the same port? I tried a few samples using MAX but only able to config it to write but when read back I get all signals as high.

Thanks,
V.

[George M.]

Hi,

The following knowledge bases describe how to perform bidirectional operations using the device.

Understanding the Bi-Directional Mode of 8255 Chip:

http://digital.ni.com/public.nsf/websearch/F865C1157622C9DE8625648B00782CDA?OpenDocument

How Do I Use Bidirectional Mode with an 8255 DIO Chip?:

http://digital.ni.com/public.nsf/websearch/92582BD25EE97F8D85256442005968C9?OpenDocument

Hope that helps. Have a good day.

George