Hi Ken, There are not any good examples in the CASPER Tutorials yet for how to configure this, however the capability is there.
In CASPER tools the signals out of the comparator/ADS7885S/etc. in that diagram and into the FPGA fabric are accessed via a GPIO yellow block using the name given to the signal in the platform configuration file. This is similar for example to how to use LEDs in the toolflow. The platform yellow block needs to be extended to include these signal names. That process involves taking the schematic net name and adding it to the platform file along with the corresponding package pin to the rfsoc. In this case you could add the following to the rfsoc4x2.yaml platform file: ``` irig_adc_sdo: iostd: LVCMOS18 loc: AK13 irig_adc_sclk: iostd: LVCMOS18 loc: AH12 Irig_comp_out: iostd: LVCMOS18 loc: AJ13 irig_trig_out: iostd: LVCMOS18 loc: AH13 ``` With this added, and using a GPIO yellow block where the name in the configuration window for that block is any of `irig_*` names you are locking target, you should be getting these signals into your fabric design. Hope this helps, Mitch On Jun 5, 2023, at 8:27 PM, Ken Semanov <shapkiqua...@gmail.com> wrote: board = Zynq UltraScale+ RFSoC4x2board (Gen 3 ZU48DR) . <smlexternal_PPS.png> The above shows an external PPS driving an ADC that is SPI's into the XCZU48DR. In what manner would the FPGA fabric access these pins in a design? Should the PLLs be programmed externally to align with this input? I have not seen any of these names re-occurring in say Xilinx document pg269, nor in Zynq document ug1085 (the full tech ref manual). How could these pins be accessed? Has anyone had luck in accessing the 1PPS SMA there, say for connecting to an external GPSDO? Thank you. -- 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/969d90a1-5bca-4325-8718-f9b4e53838f9n%40lists.berkeley.edu<https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/969d90a1-5bca-4325-8718-f9b4e53838f9n%40lists.berkeley.edu?utm_medium=email&utm_source=footer>. <smlexternal_PPS.png> -- 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/3E2AEBD6-E379-43C1-890A-4E0C0BF8ABA3%40byu.edu.
