When using the viWrite call to perform a write to the GPIB bus the call also performs a SPOLL of the GPIB following the write. This seems to be cause intermittent problems with older equipment which cannot tolerate the GPIB SPOLL immediately following the GPIB write without any time delay. Is there any way to disable the trailing SPOLL of the GPIB bus in viWrite or is there another way to write to the GPIB bus which will not perform a GPIB SPOLL?
Disable automatic serial polling (autopolling). This can be done in the configuration utility or by making an ibconfig call (ibconfig (bdHandle, IbcAUTOPOLL, 0)).
This was extremely helpful. The ibconfig call I believe is related to the IEEE card. Is there a similar type call that is associated with NI-VISA or is autopolling solely a function of the IEEE card?
