Hi Grace, Some things to check:
-- are you definitely using the correct eth port on the roach? -- are you using a crossover eth cable? you'll need a crossover to get it to talk straight to a PCI-E NIC, but if you can put a switch between them I think it'll work -- to check the IP (unsure whether *.4.20 is correct) can you connect via Serial/Minicom using the USB? I've found this to be an essential route for diagnostics especially if something weird happens with the eth connection Also, I recommend joining the casper Slack (casper-astro.slack.com), if you're not already on there. There's a dedicated roach2 channel and you might find your questions are answered already or may be answered a bit more quickly, especially out of hours. Good luck! Michael ________________________________ From: casper@lists.berkeley.edu on behalf of Grace Chesmore Sent: Tuesday, July 12, 2022 20:23 To: casper@lists.berkeley.edu Cc: Sara M. Simon Subject: [casper] Fwd: Question about FPGA Roach2 Hi casper team! I’m Grace Chesmore, a graduate student working out at Fermi National Lab with Dr. Sara Simon (cc’d). We’ve purchased a ROACH2 board and are setting it up. We are plugging it into our computer using the Ethernet port on the ROACH2. We can see that the computer is connecting to the IP port of the FPGA via the ethernet port. We configured our ethernet port to be 192.168.4.1 (to be compatible with the ROACH2 IP address which I believe is 192.168.4.20 but tell me if I’m wrong). Then, when I try to connect to the same FPGA via the casperfpga package in Python, it times out because it cannot connect (or find the IP address). I am using the command: fpga=casperfpga.Casperfpga(“192.168.4.20”) Am I missing something in the setup? Do I need to first configure the FPGA some way? Maybe we can also set up a call to troubleshoot this, I’d really appreciate any help. Thanks so much! Grace --- Grace Chesmore | she, her, hers PhD Candidate Department of Physics University of Chicago chesmore.github.io<http://chesmore.github.io/> -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu<mailto:casper+unsubscr...@lists.berkeley.edu>. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/A4C26A32-8FC3-4EB8-92E4-29B34C13DD73%40uchicago.edu<https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/A4C26A32-8FC3-4EB8-92E4-29B34C13DD73%40uchicago.edu?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/LO4P265MB6154DB9C8A628271ED643AFF8A869%40LO4P265MB6154.GBRP265.PROD.OUTLOOK.COM.
