FF answer for Register ID PXI 6509.

[Fabien PLOT]

Hi All,

I am using register level programming to program my PXI 6509. I am using a chassis with a PXI 8106 controller.

I manage to initialize the device, to read the manufacturer ID and the model. But when I reads the ID Register, I always get the answer "FF". Moreover, when I configure the P0 port for output and tries to update the value of the port to 1, the outputs are not at the value 5V.

I have linked my C code (I am using CVI).

Do you have any idea why I am getting the answer "FF"? Why are the values of the outputs not changing?

Many thanks in advance for your help,

Fabien PLOT

[JoeFriedchicken]

Hi Fabien,

It appears as though you aren't correctly initializing the MITE. Have you tried using the DDK examples [1]? If your system or software architecture prevents you from using them, you can at least refer to them for a model of how and when to write to the registers.

[1] RLP for OEM Customers

http://digital.ni.com/express.nsf/bycode/exyv4w?opendocument&lang=en&node=seminar_US