ADC Microport Address Write Error

[bongio]

Hi,

when I try to run the attached project, LabVIEW returns the error message I pasted in the word document.

Any clues on where is the problem?

Thanks in advance for your help

Best regards

Carlo

[JerryAL]

Hi Carlo

The only guess I have at this time is that the FPGA is not running.  Can you add a loop to your code prior to making this VI call and read values from the Config Loop Counter to make sure the FPGA Is running?  This will let us know that your bit file was written correctly to the FPGA and it is running.

Jerry

[bongio]

Hi Jerry

just a few questions: what do you mean with "make sure the FPGA is running"? When we run the HOST VI, the error message you can find in the attachement sometimes appears. Sometimes we can perform our acquisitions without error messages. So we can understand that there's a FPGA random behaviour.

And what do you mean with "add a loop to your code": the Config Loop Counter is already into a loop.

Thanks in advance for your help

Best regards

[JerryAL]

Hi Bongio

It is possible the FPGA is not actually running.  By default, the NI 5640R examples are configured so that the Open FPGA VI Reference is defaulted to “Open and Run” the FPGA.  You can see this by right clicking on the Open FPGA VI Reverence VI and seeing it in the pop up menu.  There are FPGA methods for Run, Abort, Reset and Download for controlling the running of the FPGA.

You are correct that the Config Loop counter already has a counter.  You should periodically check the out put of this counter to make sure that the number is continually incrementing and therefore indicating that the FPGA is running.  If the number is not incrementing, the FPGA is not running. 

Jerry