Reading and Writing using the same DIGITAL PORT with 7811r

[fmeraz]

Team,

Here is my delima, i've attached the code to see if some can help me out.

here is what i'm tring to accomplish.

I can enable the control line to the Computer,and i can write to the computer on it 32 bit General Pupose I/O. The 7811r writes data to the scs750 and the computer display that i'm sending the binary code display back what i wrote... that is fine, but when i want to do the opposite, meaning now the Computer is going to send the data to the 32bit I/O and the NI-7811r will then "READ" that binary data, at least in theory that should work, but it doesn't......

so then i start creating seprate FPGA modules but everytime they download the bitfile the computer restart? even though i disable the RESET and i hardcode the controls?

so then i went into the enabling and disabling the outputs using the "FPGA Method" and selecting the output enable>> PORT 1>> b11111111 (to enable) or b00000000 (to disable).but this seem not to work at all.... no matter what i do.....

i think i got it wired right but i have no luck...

every thing works on it own module but i get resets when i go from one download to the other.....

hopefully this makes sense.....

i've also attached the files.

[NoahR]

Hi CrukZ,

Thanks for contacting National Instruments.  I have been looking into your question and I do have a suggestion for you.  One example that I would like for you to look at is in the LabVIEW Example Finder.  The name of the example is Digital Line Input and Output - R Series.  This example goes through some of the procedure that you are trying to do.  I would make sure that you have the Enable input wired with the correct values for Reading and Writing and see what you are doing different when compared to the example.  I hope some of this helps and please let me know if you have any more questions about this.  Thanks!

[fmeraz]

Thanks Noah,

i'll look into this... but what about the digital PORT?

[NoahR]

Hi CrukZ,

There is also an example entitled Digital Port Input and Output - R Series.  I hope this helps!