map base and map size?

[Jbrib]

I have a VME bus with a device from Zygo connected to a PXIcontroller through MXI-2.

I also configured the zygo under MAX proper and can access the device with the VISA- high-level register access function in Labview.

Now I wanted to access the registers with the "low-level register access"-functions for more efficience.

I created a vi like the example "low level register access.vi" .

But now I don't know what to put in for the map base and for the map size. The explanation in the help was not well.

I tried to set the values of the memory space of my device ( A24   ;    0x104000 - 0x114000 ).

104000 for map base and the difference of 10000 for map size but it didn't work.

The function "VISA Map Address" message the error -1073807279, which means "invalid offset spezified".

Can someone explain exactly which values I should put in 'map size' and 'map base', please?

Regards, Jan

[RayFarmer]

You would probably get a better response posting this in the "VXI and VME" forum and/or the LabVIEW forum.

Regards

Ray Farmer

[RayFarmer]

Jbrib,

the map address is the offset from the VI_A24_SPACE therefore if 0x104000 is your start of your A24 space then you would put 0 for the map address as there is no offset.

regards

Ray Farmer