Chinese Mesa 7I92 from aliexpress NEW
- Sekai
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22 Nov 2025 11:19 - 22 Nov 2025 11:29 #338965
by Sekai
Chinese Mesa 7I92 from aliexpress NEW was created 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
The problem is i dont know how configure linuxcnc. I have the doc from the seller uploadnow.io/f/9v0gkpb
This is my first time with mesa card.
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
This is my first time with mesa card.
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Last edit: 22 Nov 2025 11:29 by Sekai.
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22 Nov 2025 12:31 #338968
by unknown
Replied by unknown on topic Chinese Mesa 7I92 from aliexpress NEW
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.
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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22 Nov 2025 15:46 #338975
by PCW
Replied by PCW on topic Chinese Mesa 7I92 from aliexpress NEW
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
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
The following user(s) said Thank You: andypugh
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22 Nov 2025 17:14 - 22 Nov 2025 17:21 #338982
by Sekai
Replied by Sekai on topic Chinese Mesa 7I92 from aliexpress NEW
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
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:
btw the pc is minipc Fujitsu Esprimo Q920
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
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:
btw the pc is minipc Fujitsu Esprimo Q920
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Last edit: 22 Nov 2025 17:21 by Sekai.
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22 Nov 2025 17:47 #338986
by PCW
Replied by PCW on topic Chinese Mesa 7I92 from aliexpress NEW
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.
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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22 Nov 2025 19:08 #338994
by Sekai
Replied by Sekai on topic Chinese Mesa 7I92 from aliexpress NEW
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22 Nov 2025 23:37 #339006
by tommylight
Replied by tommylight on topic Chinese Mesa 7I92 from aliexpress NEW
Nope, the network driver needs to be changed, installing the DKMS version of the Realtek drives should fix it.
Give this a try:
Give this a try:
sudo apt-get install r8168-dkmsPlease Log in or Create an account to join the conversation.
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23 Nov 2025 05:35 - 23 Nov 2025 05:42 #339027
by Sekai
Replied by Sekai on topic Chinese Mesa 7I92 from aliexpress NEW
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Last edit: 23 Nov 2025 05:42 by Sekai.
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23 Nov 2025 05:56 #339028
by rodw
Replied by rodw on topic Chinese Mesa 7I92 from aliexpress NEW
With Intel, be sure to set up the coalescing settings. Type man hm2_eth and follow the instructionsI dont think i have a realtek ethernet
Its a intel i217LM and i have already the latest kernel e1000e
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23 Nov 2025 08:27 - 23 Nov 2025 08:40 #339034
by Sekai
Replied by Sekai on topic Chinese Mesa 7I92 from aliexpress NEW
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Last edit: 23 Nov 2025 08:40 by Sekai.
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