Windows 2000, LabVIEW 6.1, Custom ISA motherboard, Register level access of card. (program was written with In Port.vi, Out Port.vi, those two VIs are working well)
no I/O addr conflicts according to Win2000 control panel info.
Problem:
1. When Internet explorer is running, a single action (such as read A/D result ONCE from the card) by the program generates several/many repeated actions (as observed from osicilloscope) and the returned result is incorrect.
2. When program is running idle (no trigger to card by my labview program), click a link in internet explorer,several/many repeated actions/triggers are generated to the card (as observed by oscilloscope)
3. Also noticed
the speaker/sound symbol on PC screen is red-crossed-out after the card is installed and card access tried .
Without internet explorer running, the program works well except the sound symbol is still crossed out
Your response is highly appreciated!