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self calibration of NI PCI-6351 (X series) using the DDK

I am adapting an advanced electrochemical software running on FreeBSD which where written for the NI PCI-6251 (M-Series) for a new customer to the NI PCIe-6351 (X-Series).

 

The new board is installed and the X-Series DDK examples work as expected. In said EC software I got AI, AO (both with and without DMA) as well as DIO and PFI already working without major problems.

 

Now I am stuck in finding even the command for doing internal signal routing which would be necessary for porting the self calibration routines, which I wrote in 2009 for the PCI-6251, see here: https://forums.ni.com/t5/Driver-Development-Kit-DDK/self-calibration-of-NI-PCI-6251-M-series-using-t...

 

I attached to this message my working calibration sub-routines for said M series board.

 

Questions:

 

1) How would I set the internal routing?

2) What are the selectors for the positive and negative internal sources?

On the M series board I had:

typedef enum

{

   noCalsrc=-1,

   scxi0    =  0,

   scxi1    =  1,

   calRef   =  2,

   calSrc05 =  3,

   calSrc2  =  4,

   calSrc10 =  5,

   gndAI    =  6,

   selAO    =  7,

   // derived selectors

   calSrc01 =  8,    // => calSrc05, PWMlo = 3, PWMhi = 2

   calSrc02 =  9,    // => calSrc05, PWMlo = 7, PWMhi = 3

   calSrc1  = 10,    // => calSrc2,  PWMlo = 9, PWMhi = 3

   calSrc5  = 11     // => calSrc10, PWMlo = 9, PWMhi = 3

} pos_src;

 

enum

{

   noCalSrcNeg = -1,

   scxiNeg0    =  0,

   scxiNeg1    =  1,

   Tsensor     =  2, // according to a measurement series T in °C = 100*Ut - 50

   senseAI     =  3,

   sense2AI    =  4,

   gndAONeg    =  5,

   gndAINeg    =  6,

   calSrc10Neg =  7

} neg_src;

 

How do I set a  PWM source?

 

4) Does the eepromHelper method getSelfCalVoltRef() give the actual value of the internal reference voltage?

 

I am searching already for several hours in the X Series DDK and its relevant documentation and I could not find anything which is even remotely with similar to the M Series respect to internal signal routing.Many thanks in advance for any help.

 

Best regards

 

Rolf

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