7i96s board not detected

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16 Jul 2022 18:14 #247487 by vkhargwanshi
Its still red light for CR7, CR8 is yellow as expected

Now the behavior has changed a bit towards bad.. now CR7 is blinking once then CR6 also blinking.. It has a sequence. CR7 CR6 CR7 CR7 CR6 CR7 CR7 CR6 CR7.....

Any clue how to resolve this?

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16 Jul 2022 18:24 - 16 Jul 2022 18:25 #247488 by PCW
Replied by PCW on topic 7i96s board not detected
This most likely indicates that you have an inadequate 5V power supply.
That is, the current draw when the FPGA loads exceeds you power supplies
current capability briefly so it trys  to load and then gets reset as the power
supply briefly droops and causes a reset.

This can also be caused by a supply cable with too much resistance.

 
Last edit: 16 Jul 2022 18:25 by PCW.

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16 Jul 2022 19:12 #247492 by vkhargwanshi
Thank you so much PCW. I had used breadboard in between. Now connected PI to mesa directly for power supply and red light went off.

Now still struggling to get mesaflash command to detect board...
As if now tried all the ways suggested in replies.. not successful yet..

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17 Jul 2022 16:06 #247569 by Nest
Replied by Nest on topic 7i96s board not detected
The power supply of the raspberry pi does not have enough power for the MESA card, use another power supply, a PC power supply will works fine

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18 Jul 2022 02:11 - 18 Jul 2022 02:11 #247621 by vkhargwanshi
I checked the power supply from pi, its giving 5.1V.

The board is booting fine. When connecting with ethernet with W4 & W5 in down position, its giving me ethernet address also and I am able to ping also. However the IP address assigned is as follow and I am able to ping this address.

inet 169.254.63.229/16 brd 169.254.255.255 scope global noprefixroute eth0
valid_lft forever preferred_lft forever

I am stuck now as still mesaflesh is not detecting the board, its says its not found.
I believe unless mesaflesh detects the board and identify its IP address correctly, I can't proceed.

If I have to change the power source, then I need voltage as 5v, what about current requirement?

Any help in proceeding further is good for me
Last edit: 18 Jul 2022 02:11 by vkhargwanshi.

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18 Jul 2022 02:54 #247624 by PCW
Replied by PCW on topic 7i96s board not detected
You still do not have the host address set properly, (this can be done with network manager or editing the interfaces file as described in the hm2_eth manual page)

Properly setup, you should have something like this from the "ip a" command:

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether ec:b1:d7:6c:a2:da brd ff:ff:ff:ff:ff:ff
inet 10.10.10.100/8 brd 10.255.255.255 scope global eno1

Notice the 10.10.10.100 fixed IP address

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18 Jul 2022 05:10 #247635 by vkhargwanshi
Thank you so much PCW. Somehow the solution mentioned in hm2_eth was not working. So I googled little more for RSPI and found that changes to be made in dhcpcd.conf.

Made following changes and now mesaflash is able to identify the board at 10.10.10.10

interface eth0
static ip_address=10.10.10.100/8

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18 Jul 2022 06:37 #247642 by Nest
Replied by Nest on topic 7i96s board not detected
the power supply of a raspberry pi is a mobile charger, the problem is not the voltage, the problem is the amperes... try a Independent power supply like PC power supply

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18 Jul 2022 08:30 #247645 by zz912
Replied by zz912 on topic 7i96s board not detected

Thank you so much PCW. Somehow the solution mentioned in hm2_eth was not working. So I googled little more for RSPI and found that changes to be made in dhcpcd.conf.

Made following changes and now mesaflash is able to identify the board at 10.10.10.10

interface eth0
static ip_address=10.10.10.100/8
 

If I made changes directly in dhcpcd.conf, I do "sudo apt-get remove network-manager", but I must added internet to dhcpcd.conf.  I dont remember how excatly. It was a long time before.

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