Chinese Mesa 7I92 from aliexpress NEW

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11 months 1 week ago #338965 by Sekai
Hi.I bought a mesa card from aliexpress to power my lathe.The board works with 10.10.10.10 it pings and output that gives me with command:sudo mesaflash --device 7i92 --addr 10.10.10.10 --readhmid
Code:
configuration Name: HOSTMOT2 General configuration information:   BoardName : MESA7I92   FPGA Size: 9 KGates   FPGA Pins: 144   Number of IO Ports: 2   Width of one I/O port: 17   Clock Low frequency: 100.0000 MHz   Clock High frequency: 200.0000 MHz   IDROM Type: 3   Instance Stride 0: 4   Instance Stride 1: 64   Register Stride 0: 256   Register Stride 1: 256 Modules in configuration:   Module: WatchDog   There are 1 of WatchDog in configuration   Version: 0   Registers: 3   BaseAddress: 0C00   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: IOPort   There are 2 of IOPort in configuration   Version: 0   Registers: 5   BaseAddress: 1000   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes   Module: LED   There are 1 of LED in configuration   Version: 0   Registers: 1   BaseAddress: 0200   ClockFrequency: 100.000 MHz   Register Stride: 256 bytes   Instance Stride: 4 bytes Configuration pin-out: IO Connections for P2 DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir  1                      0   IOPort       None            14                      1   IOPort       None             2                      2   IOPort       None            15                      3   IOPort       None             3                      4   IOPort       None            16                      5   IOPort       None             4                      6   IOPort       None            17                      7   IOPort       None             5                      8   IOPort       None             6                      9   IOPort       None             7                     10   IOPort       None             8                     11   IOPort       None             9                     12   IOPort       None            10                     13   IOPort       None            11                     14   IOPort       None            12                     15   IOPort       None            13                     16   IOPort       None            IO Connections for P1 DB25 pin#             I/O   Pri. func    Sec. func        Chan     Sec. Pin func   Sec. Pin Dir  1                     17   IOPort       None            14                     18   IOPort       None             2                     19   IOPort       None            15                     20   IOPort       None             3                     21   IOPort       None            16                     22   IOPort       None             4                     23   IOPort       None            17                     24   IOPort       None             5                     25   IOPort       None             6                     26   IOPort       None             7                     27   IOPort       None             8                     28   IOPort       None             9                     29   IOPort       None            10                     30   IOPort       None            11                     31   IOPort       None            12                     32   IOPort       None            13                     33   IOPort       None 

The problem is i dont know how configure linuxcnc. I have the doc from the seller uploadnow.io/f/9v0gkpb

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This is my first time with mesa card.

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11 months 1 week ago #338968 by unknown
You did not buy a Mesa card. You bought a Chinese clone hoping to save some money then expecting help.
The best thing you can do is read the Linuxcnc documentation.
But any of the quirks with the card itself you are going to have get support from the vendor.
Without knowledge of the schematics no one can say whether it will operate electrically as original Mesa 7i92.
What you have done is bought a rip-off and now expecting those that are loyal to Mesa Electronics to dig you out of hole.

And to be perfectly honest there are plenty of threads regarding configuration, plenty of resources on YouTube and plenty of advice in the docs.

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11 months 1 week ago #338975 by PCW
The basic issue is that the current firmware is just GPIO (no Step/Dir hardware etc)

There could be a couple reasons for this:

1. The wrong firmware is installed,

2. The card had corrupted firmware so has loaded the fallback firmware (which is just GPIO)

Did the card vendor supply a firmware file?, it does not look like any standard 7I92 firmware to me

If they did supply firmware, I would try re-writing it with:

mesaflash --device 7i92 --addr 10.10.10.10 --write  vendor_supplied_firmware_file_name.bit --reload

 

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11 months 1 week ago #338982 by Sekai
You are right.
the firmware that the seller gave me was 7i92_G540x2D_custom.bit
I did upload it but it gave an error when i started linuxcnc
 

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I install Mesa Configuration Tools and download a firmware from there the 7i92_G540x2D without the custom part and it works.
For now i just tested the pin output
The next problem is when i start linuxcnc it gave me an error: Watchdog has bit!
from the post "Mesa 7i97 Watchdog has bit!"  i did latency-histogram --nobase --sbinsize 1000 and its like this:
 

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btw the pc is minipc Fujitsu Esprimo Q920

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11 months 1 week ago #338986 by PCW
The watchdog error is a sign of network latency issues.

I would try:

sudo chrt 99 ping -i .001 -q-c 60000 10.10.10.10

which should run for 1 minute and then print timing statistics
to see if this is the issue.

 

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11 months 1 week ago #338994 by Sekai
 

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I think the max value is to high.
Maybe the cpu needs to tweak?

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11 months 1 week ago #339006 by tommylight
Nope, the network driver needs to be changed, installing the DKMS version of the Realtek drives should fix it.
Give this a try:
Code:
sudo apt-get install r8168-dkms

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11 months 1 week ago #339027 by Sekai
I dont think i have a realtek ethernet
 

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Its a intel i217LM and i have already the latest kernel e1000e

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11 months 1 week ago #339028 by rodw

I dont think i have a realtek ethernet
Its a intel i217LM and i have already the latest kernel e1000e
With Intel, be sure to set up the coalescing settings. Type man hm2_eth and follow the instructions

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11 months 1 week ago #339034 by Sekai
i tried with the ethtool but no change
 

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after reading some more i disable AMT setting from bios but the value remain the same

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