ARB wave form generator 5450

[hany_anees]

i do not know the value of gain

but also it gave some errors when working with external digitizer

[MikhailK]

Hi,

To get the value of your gain please put a probe on the wire coming out the unbundle gain cluster.

Now, when you just run RFSG-FlexRIO Eg2.zip 1757 KB example (without your modifications) do you still get the same error?

Also try running your code in Highlight Execution mode and check if there is any errors (on the error wires) coming out from the RFSA or RFSG VIs. If there are errors what are the error codes? It could be that your RFSA or RFSG device is not properly configured in MAX.

Finally, what kind of errors do you get when working with external digitizer? Please be specific.

Thanks,

[hany_anees]

Hi,

i made it and now i put the power level value with constant value as appeared in the without error project and also the filter gain

and modify the project with this values as a constant values and made some modifications then the project know it did not give any error and the IF output from 5601 =70 MHz and external digitizer working without errors but the problem now the 5652 in RFSA did not output reference clock ? at the Ref out to entered it to CLK IN on the 5622 (the value of reference clock equal to 100MHz measured from the project which runing without any errors) the problem now why???? the 5652 did not output the reference clock also i attatched with this reply the new version of the project with modification and without errors. also the 5652 of RFSA output the required RF output (2338MHz) which mixed in the 5601 with the RF IN (2268MHz) to output the required IF output at 70MHz.

thank you

[MikhailK]

Hi!

Can you check with the scope/digitizer the "Ref out" and "Ref out 2" outputs of your PXIe-5652 on RFSA?  What signals do you observe coming out of those pins? Does the Clock on 5450 on RFSG successfully PLLs/locks to "Ref out" signal from your 5652 on RFSA? Make sure you wire your 5663 RFSA/VSA as follows:

Also what is the serial number or part number of your 5652 card in your RFSA? Based on the part number some of 5652 cards have different features. Refer to the attachment.

[hany_anees]

Hi

thank you for your reply

i had the NI 5652 card with Two connector (RF out and Ref IN/Out) Connectors

when i checked the  signal on Ref IN/Out i did not detect any signal using spectrum analyzer (no carrier on 100MHz or 10MHz).

also the 5450 whcih in RFSG gave red led indicator ON (because of no clock drived it)

but when i run the RFSG-FlexRIO Eg2.zip project (which is run without errors and without modifications) it gave detected signal output at the Ref IN/Out connector at 100MHz and also at 10MHz.

also the wired connection as in attatchement picture

[MikhailK]

Hi

Is there any reason why you use RFSA commit twice in the same task? I would suggest the following changes:

- Remove the first RFSA commit

- Group all the properties under the same RFSA property node

Let me know if you get any errors after making the above changes.

[hany_anees]

Hi

i Removed the first RFSA commit

also and grouped all the properties under the same RFSA property node

but the same problem not working

so now i make some change in VI to separate between the digitizer 5622 in RFSA and the another 2 cards (5652 and 5601) but the problem what how i send the data input to the digitizer to FPGA then FPGA send the data to RFSG that means the same example of  RFSA - FlexRIO - RFSG but NI-scope-flexRIO-RFSG

i make try for this appears in the attachement it did not gave error but no output on the RF out

it  seems the 5622 needs some adjustement please send me example for P2P between 5622 and RFSG

[MikhailK]

Hi,

There are no any pre-made shipping examples of P2P streaming between 5622 (digitizer) and 5673 (VSG) that come with NI RFSG or NI SCOPE drivers.You can create a P2P stream from 5622 to 5673 but not the other way around. Refer to:

What is your end goal here for  connecting the two devices through P2P stream? Do you want to generate the data acquired by the digitizer on the VSG? The following articles might be useful:

NI PXIe-5622 Peer-to-Peer Streaming

An Introduction to Peer-to-Peer Streaming

As for your example, I would double check if VSG actually receives the PFI 1  trigger, as this could be the reason why there is no signal on RF out.

[hany_anees]

Hi

yes i want to generate the data acquired by the digitizer on the VSG but through the FPGA

at first time then i will control this data inside the FPGA and generate another data from FPGA to VSG

first step : digitizer write the data on the stream then FPGA read this data and the FPGA write this data again to the stream and VSG read this data and generate it.

second step : digitizer write the data on the stream then FPGA read this data and the FPGA control this data and generate another data and write this data to the stream and VSG read this data and generate it.

remark : i put the power level in property with constant value nearly to -3 and the filter gain =power level - 2 and remove the coeificient scaler which generate the gain and offset. 

 how i can check the PFI 1  trigger output also by spectrum analyzer at which frequency??? or oscillscope???

there are any error around the trigger in the project???

if no any examples for P2P between the 5622 digitizer and the VSG

may be there are example between 5622 digitizer P2P with FPGA and then FPGA P2P with VSG

OR

may be there are example between RFSA P2P with FPGA and then FPGA P2P with VSG but initialization of the RFSA with option (external digitizer) for change the value of IF to 70MHz (which output from 5601 downconverter in the RFSA)

thanks for you

[MikhailK]

Hi,

The following P2P examples are available from LabVIEW Example Finder:

Now, you can modify the niScope EX P2P example and replace the FPGA with a VSG and thus you can get to your first step.

For your second step you can use the example from above and "RFSA - FlexRIO - RFSG" example from earlier to establish P2P FPGA->VSG stream. In any case, you might have to do some of the programming yourself, since we don't have pre-made LabVIEW examples for some of the things you are trying to accomplish. Also, as an alternative to P2P streaming from 5622 digitizer to FlexRIO FPGA card you can have a FlexRIO Adapter module, such as NI 5762 that you can plug into your FlexRIO FPGA card and simply add it as an input on the FPGA I/O node thus eliminating the need for P2P streaming between the digitizer and the FPGA.