7c81 + 7i73

Hello all! I'm new here on the forum, I've been searching for a day or so now and can't really seem to figure this out. I've been using the machine with a rpi4, with the 7c81 running the 5abobx2 bitfile setup for a little while now and decided to expand with the 7i73. From what I've read, when using pncconf I should see the 7i73 or at least a way to set pins on the smart serial interface, right? So far, it never seems to show up. I have it connected to the 7c81 via a cat6 cable, and I have a power light on the 7i73. I've set the jumpers on the 7i73 to all the default locations (terminated serial, no lcd, no keypad). when using mesaflash to check the config of the 7c81, I can see the smart serial interface. I feel like there's something very simple I'm missing. I hope this isn't a repeat question, I couldn't find it here. I appreciate any help you can offer

  Module: SSerial
  There are 1 of SSerial in configuration
  Version: 0
  Registers: 6
  BaseAddress: 5B00
  ClockFrequency: 100.000 MHz
  Register Stride: 256 bytes
  Instance Stride: 64 bytes

 

mesaflash --device device_name [options] --sserial


mesaflash --help gives more stuff

or you can try

man mesaflash

Thanks for the quick response. I ran mesaflash --device 7c81 --addr /dev/spidev0.0 --spi --sserial and seems like it's communicating with the 7i73! I'm still not sure why pncconf isn't showing it? Is there some extra hal configuration that I need to do?

Here's the truncated output from the mesaflash command, just to show it is there
...
SSLBP port 0:
SSLBP Version: 1.43
SSLBP Channels: 2
SSLBP Baud Rate: 2500000
sserial device at channel 1: 7I73 (unit 0x130001F9)
SwRevision = 14
HwRevision = 1
NVBaudRate = 2.5Mb
NVUnitNumber = 0x130001F9
NVWatchDogTimeout = 50ms
.....

Okay,I did a dumb haha. I got a little too hung up on pncconf not picking up the 7i73. So I started linuxcnc and ran halcmd show pin | grep 7i73 and they're all there. I'm just going to set my pins in my hal file and it should be good to go