Hello Nitika,

I’m not using conda environment so I can’t comment on that,  but:

1.  To clear the “Odd?” problem I ssh’d into red pitaya and added “127.0.0.1 
localhost” line to etc/hosts on red pitaya.

3.  To clear the “value seems to also be varying rapidly rather than 
incrementing steadily as expected” problem I updated casperfpga from version 
0.1.1 to 0.4.4.  This can be done by doing:

~/casperfpga$ sudo pip install -r requirements
~/casperfpga$ sudo pip install .

instead of:

~/casperfpga$ sudo pip install -r requirements
~/casperfpga$ sudo pip install casperfpga

i.e., doing it the first way installs from the local repo instead of the remote 
repo which I think contains an outdate version of casperfpga.  You can verify 
your version is ipython by:

In[x] casperfpga.--version--   (not sure I have the syntax exactly right)

Hope that helps -- Jeff

[cid:[email protected]]

Jeffrey Kobesky
Electronics Engineer
Naval Research Laboratory
Information Technology Division Code 5555
Bldg 1   Room 222
4555 Overlook Ave SW
Washington, DC  20375
Office 202.404.7109    Mobile 443.243.1554
[email protected]<mailto:[email protected]>



From: Yadlapalli, Nitika <[email protected]>
Sent: Tuesday, January 25, 2022 6:34 PM
To: [email protected]
Subject: [casper] Red Pitaya programming/clocking issue?

Hi all!

I am getting started with casper on a Red Pitaya 125-14. I've been following 
the tutorial about using the ADC/DAC boards 
(https://casper-toolflow.readthedocs.io/projects/tutorials/en/latest/tutorials/redpitaya/tut_adc_dac.html)
 and have run into a few issues:


  1.  I'm not able to use upload the upload_to_ram_and_program method with the 
.fpg file. I get this "ERROR:10.42.0.69:10.42.0.69: no programming informs yet. 
Odd?" ​and I don't seem to be able to activate the tcpborphserver on the red 
pitaya either to fix it as I've seen in a previous archive thread.
  2.

  3.  I can use the .bof file for programming the red pitaya, so I've been 
moving forward with that. If I try to get the clock speed, however, using 
estimate_fpga_clock(), the output estimated clock speed changes wildly with 
time and is never consistent with the 125 MHz speed I expect. Additionally, if 
I try to read the adc_samp_cnts register as outlined in the tutorial, the value 
seems to also be varying rapidly rather than incrementing steadily as expected.


Has anyone encountered these issues before? I have all the packages installed 
in a conda environment.


Best,
Nitika

Nitika Yadlapalli (she/hers)
PhD Candidate | Astronomy
California Institute of Technology

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  • ... Yadlapalli, Nitika
    • ... 'Kobesky, Jeffrey CIV USN NRL (5555) Washington DC (USA)' via [email protected]
      • ... Adam Isaacson
      • ... Yadlapalli, Nitika
        • ... Mathews Chirindo
          • ... Mathews Chirindo
          • ... Yadlapalli, Nitika
            • ... Mathews Chirindo

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