Always get 65535

Question

I am using the DAQCARD-AI-16XE-50 and NI example code working on CE .net system with hardware PC104. After I set up the system, and run the sample code from NI(aiex1), it always return 65535 in the loop to check the stack. What is wrong? anybody knows why?
Thank you in advance for your help.

Answer 1

I did not see the issue in DVD SP 4 but it is does not work in DVD SP 3
I have not traced the whole script but the problem is that using some of the commands may be changing the values depending on which version of DVD SP is being used, though I agree it does not make sense that adding 1 should be a problem. ( There was an example awhile back that people had trouble with because of trying to port Last Played/Jump Indirect values between versions of DVD SP, Hal do remember the thread or project?)
A quick read (have not full looked it through) is If you look at the Chapter Forward script there can be an issue there also - it can jam out the players because the last jump for Chapter 4 in the track is the Chapter Forward script and it can hang.
Anyway if you use this as the Chapter Forward script it should work in DVD SP 3
// set GPRM elsewhere to 1 if Play All otherwise it is not play all and exits
Jump Menu:: if (GPRM 0 1)
// in the button command choosing Play All make sure to set GPRM 3 to 0 for loop
add GPRM 3, 1
mov GPRM 4, GPRM 3
//49280 happens to be the number for this track but is may not be portable
add GPRM 4, 49280
Jump Indirect GPRM if (GPRM 3 <4)
Jump Menu
Also make sure to set GPRM 3 to 0 before going to the track for a play all
Usually I prefer to use stories as oppossed to scripting these things when possible.