7i76E has ethernet lights and LED sequence, but no ping

Yet another "no ping" thread.

I used this 7i76E on another machine for several months last year, then sat in unused for about a year, and now I'm trying to use the board again on another machine.

Followed all the wiring guidelines and diagrams found on the forum.

- Fresh LinuxCNC 2.8.4 Debian 10 Buster image
- Regulated 24V supply to TB1 and TB3 (W1 to the left) (5V measured at P3)
- Also tried 5V to P3 directly (W1 to the right)
- All jumpers to default positions
- Tried two different PCs, two different NICs, three different ethernet cables
- Upon power on, the INIT and DONE LEDs flash, followed by the USER LED back and forth sequence
- CR13 Amber LED is on
- Both ethernet lights are on

I setup NIC static IPs as necessary (192.168.1.100 or 10.10.10.11), confirmed with ip addr. No other network connections present. No ping to 192.168.1.121. Also tried W3 UP and 10.10.10.10 but didn't work.

Tried both primary and secondary FLASH select via jumper W9, didn't help

No card found to mesaflash --device 7i76e --addr 192.168.1.121 --readhmid & mesaflash --device 7i76e --addr 10.10.10.10 --readhmid

I read somewhere that the EEPROMs can "go empty" if sitting for a while. I have Segger J-Link Pro if I can somehow resurrect it if this could be the case.

I browsed the forum thoroughly and couldn't find any other tips. Thanks in advance.

Does the green LED on the RJ45 blink when you ping the card?

Its not likely an EEPROM issue as the FPGA will not load if there is a CRC
error in the FLash EEPROM image, and the Ethernet EEPROM  is not used
for anything but the MAC address when set for 192.168.1.121

 

Hi Peter, I do in fact get a green blink as it's attempting the ping.

JT, I checked for debris in the port and it's clear. I plugged and unplugged many times as you suggested.

Here's a picture of my board, just in case I'm doing something very dumb. Currently only have 5V bench supply to P3 and in the 192.168.1.121 setting.

 

It sounds like maybe it  has a connection issue from the FPGA to the Ethernet chip
(especially if the green LEDs don't count up when pinging the card)

Probably best returned to Mesa for repair/replacement