Mesa 7i76e wiring

Bello
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15 Nov 2018 16:54 #120764 by Bello

Mesa 7i76e wiring was created by Bello

Hi all,
I have bought a mesa 7i76e for my machine.
I'm trying to setup it but I really not understood how to wires it.
From documentation I read that if I want use a 10.10.10.10 ip address on mesa I just move w3 jumper from down to up and I have done it.
After that I have edited the /etc/network/interfacesfile and added the following rows:

auto eth0
iface eth0 inet static
address 10.10.10.1
netmask 255.255.255.0

and restarted the network service.
Now I'm able to see my eth0 configured on the 10.10.10.1 ip.
When I try to ping the mesa I obtain:

Destination is Unreachble error message....why?

I'm using a normal ethernet cable between PC and MESA (directly without passing via any router or switch) and I have connected the board to 5v power supply. I see only the mesa led lighting....
What I wrong?

Can I directly connect the mesa with Linuxcnc PC using a normal ethernet cable or I need a crossed (or specific other) one?

Please help me!

Thank you in advance.

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PCW
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15 Nov 2018 17:32 - 15 Nov 2018 18:31 #120766 by PCW

Replied by PCW on topic Mesa 7i76e wiring

"Destination is Unreachable" is likely a host network setup issue

what does the command:

ip a

report?

( also the 7I76E uses a Ethernet interface with the "MDIX" feature so either crossover or straight Ethernet cables will work equally well )

Last edit: 15 Nov 2018 18:31 by PCW.

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Bello
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15 Nov 2018 19:51 - 15 Nov 2018 19:52 #120770 by Bello

Replied by Bello on topic Mesa 7i76e wiring

this is the output:

user@debian:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether 68:b5:99:e2:df:c7 brd ff:ff:ff:ff:ff:ff
    inet 10.10.10.1/24 brd 10.10.10.255 scope global eth0
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    link/ether cc:52:af:0c:90:69 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::ce52:afff:fe0c:9069/64 scope link 
       valid_lft forever preferred_lft forever

and this is the ping result:

user@debian:~$ ping 10.10.10.10 
PING 10.10.10.10 (10.10.10.10) 56(84) bytes of data.
From 10.10.10.1 icmp_seq=1 Destination Host Unreachable
From 10.10.10.1 icmp_seq=2 Destination Host Unreachable
From 10.10.10.1 icmp_seq=3 Destination Host Unreachable
From 10.10.10.1 icmp_seq=4 Destination Host Unreachable
From 10.10.10.1 icmp_seq=5 Destination Host Unreachable
From 10.10.10.1 icmp_seq=6 Destination Host Unreachable

Last edit: 15 Nov 2018 19:52 by Bello.

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PCW
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15 Nov 2018 20:18 #120772 by PCW

Replied by PCW on topic Mesa 7i76e wiring

"NO-CARRIER"

do you have link lights on the 7I76E?

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Bello
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15 Nov 2018 20:55 #120774 by Bello

Replied by Bello on topic Mesa 7i76e wiring

Yes I have. CR1 lighitng in green and CR2 red.

Could depends that maybe I m using a wrong kernel ?

I read here that could depends from it but I m really confused now:

forum.linuxcnc.org/9-installing-linuxcnc...-find-module-hm2-eth

my version is:

user@debian:~$ uname -v
#1 SMP PREEMPT Debian 3.4.55-4linuxcnc

I have downloaded the image from www.linuxcnc.org/linuxcnc-2.7-wheezy.iso

I ve tried it in live mode and not, got the same issue.

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PCW
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15 Nov 2018 21:09 #120776 by PCW

Replied by PCW on topic Mesa 7i76e wiring

CR1 on means that the FPGA could l not load its configuration data
So you may have a bad power supply or corrupted Flash data

I would verify that you have a good 5V supply and if that good try the alternate flash chip

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Bello
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15 Nov 2018 21:20 #120777 by Bello

Replied by Bello on topic Mesa 7i76e wiring

The supply seems good, I will try another one asap and will let you know.

What you mean for alternate flash data?
The mesa is new and I have only unpackaged and connected it, how flash data was corrupted ?

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PCW
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15 Nov 2018 21:23 #120778 by PCW

Replied by PCW on topic Mesa 7i76e wiring

The 7I76E has 2 flash chips and you can select between them with a jumper
(this is described in the manual)

I would not expect a corrupted flash chip but it does happen occasionally

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Bello
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15 Nov 2018 21:29 - 15 Nov 2018 21:41 #120780 by Bello

Replied by Bello on topic Mesa 7i76e wiring

You mean W3 modes or you are referring to another jumper one?

Which test can i do to verify that all is OK?

When you say link lights are you referring to those ones on the ethernet port? Because really those arent lighting in a mesa and the same on the pc

Last edit: 15 Nov 2018 21:41 by Bello.

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PCW
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15 Nov 2018 21:47 - 15 Nov 2018 21:48 #120784 by PCW

Replied by PCW on topic Mesa 7i76e wiring

Check page 4 of the manual under heading:

FPGA FLASH SELECT

(if the FPGA does not load you will not get any link lights)

Last edit: 15 Nov 2018 21:48 by PCW.

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