Remora - ethernet NVEM / EC300 / EC500 cnc board
- scotta
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10 Nov 2023 20:46 #285050
by scotta
Replied by scotta on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Hi Alex, I've just tested your config.txt on my EC500 with latest firmware version v2.2.1 and the outputs are working as expected.Hi there Scott
I have flashed my EC500 with the latest firmware & am having a bit of a strange problem. Output pin 14 does not seem to be toggeling for me.
my machine is setup so that when the power on button is pressed in LinuxCNC output 14 comes on enabling the relay for the main drives...
net switch_on halui.machine.is-on remora.output.14 remora.output.13
When I turn the machine on most of the relays turn on (in the EC500) as part of the power up cycle and then turn off but output 14 seems to stay on.
I have disconnected all of the wires from the DB15 board & measured with a volt meter.
If I toggle remora.output.15 & measure between 1 & 15 on the DB15 it goes from 0 to 24v
if I toggle remora.output.13 & measure between 1 & 14 on the DB15 it goes from 0 to 24v
if I toggle remora.output.14 & measure between 1 & 7 on the DB15 it stays at 24v
Which is strange because it seemed to work as expected before I flashed the new firmware.
I have uploaded the same config file as before. (attached)
When attached to the relay & turn off it would sometimes have 8v measured !?!
I have attached the hal files also.
Could you please check to be sure there is not something in the software that could cause this.
Thanks
Alex
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- FCS Industrial
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11 Nov 2023 05:12 #285073
by FCS Industrial
Replied by FCS Industrial on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Yes of course, follow the files in the post below
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11 Nov 2023 05:15 #285074
by FCS Industrial
Replied by FCS Industrial on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Yes of course, follow the files
Hello everyone, I've been having a problem for days that I can't resolve.
joint 2 following error
emc/task/taskintf.cc 942: Error on joint 2, command number 104
The NVEM card communicates perfectly with linuxcnc, but when I ask it to start gcode I always get this error.
Could someone please help me.
Do you get this error if you do a full chip erase and upload the firmware without uploading a config.txt file?
Hello Scotta, thanks for responding.
Yes that's right. I get the same error when loading the chip completely without loading config.txt or with it.
I confess that I've tried everything, and I have no idea what could be happening.
My NVEm is STM32
Can you jog at all? Please share your hal and config.txt file and I'll take a look. It has to be a configuration issue.
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- hanskuster
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11 Nov 2023 14:40 - 11 Nov 2023 15:28 #285102
by hanskuster
Replied by hanskuster on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Hi all,
I have a EC500 board which I flashed with the firmware remora-rt1052-2.1.1.bin
When I upload "ec500-rt1052-DMA.txt" with upload_config.py I get the message "JSON config length incorrect" from the EC500 console.
I tried different files and all gave the same result.
Regards, Hans
Addendum:
As a test I flashed "remora-rt1052-1.1.0.bin" and then I can upload the config file.
So that seems to be a bug in the most recent firmware file.
I have a EC500 board which I flashed with the firmware remora-rt1052-2.1.1.bin
When I upload "ec500-rt1052-DMA.txt" with upload_config.py I get the message "JSON config length incorrect" from the EC500 console.
I tried different files and all gave the same result.
Regards, Hans
Addendum:
As a test I flashed "remora-rt1052-1.1.0.bin" and then I can upload the config file.
So that seems to be a bug in the most recent firmware file.
Last edit: 11 Nov 2023 15:28 by hanskuster.
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- scotta
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11 Nov 2023 22:15 #285138
by scotta
Replied by scotta on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Hi, I've tried to replicate your issue. A full chip erase and firmware flashed from repo. Using your config.txt I get the following successful result..Hi all,
I have a EC500 board which I flashed with the firmware remora-rt1052-2.1.1.bin
When I upload "ec500-rt1052-DMA.txt" with upload_config.py I get the message "JSON config length incorrect" from the EC500 console.
I tried different files and all gave the same result.
Regards, Hans
Addendum:
As a test I flashed "remora-rt1052-1.1.0.bin" and then I can upload the config file.
So that seems to be a bug in the most recent firmware file.
pi@remora:~/linuxcnc/configs/remora-ec500-DMA $ python3 upload_config.py ec500-rt1052-DMA-issue.txt
Valid JSON config file, uploading to NVEM board
Config file length (words) = 323
Config file length (bytes) = 1292
Remainder = 0
Config file length with padding (bytes) = 1292
CRC-32 = 0x70e7e4bf
## Entering IDLE state
Receiving new configuration. Stopping threads..
timer stop
timer stop
Checking new configuration file
mod = 0, padding = 0
Length (words) = 323
JSON length (bytes) = 1292
crc32 = 70e7e4bf
JSON Config file received Ok
Moving new configuration file to Flash storage and reset
pages = 6, sectors = 1
Configuration file moved
Remora RT1052 starting
Initializing PHY...
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- frayja2002
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12 Nov 2023 08:21 #285149
by frayja2002
Replied by frayja2002 on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Hi there
I wonder if I could just get you to confirm that.
I have flashed remora-rt1052-2.1.1.bin & am still seeing this at 24v all the time.
I have uploaded some pics. Its not so clear in the picture but all of the LEDs are off.
If yours is working normally then I'm thinking it might be a hardware failure on my board.
Thanks
Alex
I wonder if I could just get you to confirm that.
I have flashed remora-rt1052-2.1.1.bin & am still seeing this at 24v all the time.
I have uploaded some pics. Its not so clear in the picture but all of the LEDs are off.
If yours is working normally then I'm thinking it might be a hardware failure on my board.
Thanks
Alex
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12 Nov 2023 19:36 #285194
by chrstrvs
Replied by chrstrvs on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Has anyone experienced stuttering/jerky stepper motors?
I just installed the NVEM board back in the mill after having it on the desk while setting up LinuxCNC. The machine moves and homes, but during jogging the stepper motors stutters or jerks or possibly skips steps.
The hardware setup is untouched since running Mach3, so I'm confident it's not related to the steppers, drivers, wiring etc. Could implementing PID help? If so, what would be the right way to tune the parameters?
My hal and ini are attached if anyone wants to take a look.
I just installed the NVEM board back in the mill after having it on the desk while setting up LinuxCNC. The machine moves and homes, but during jogging the stepper motors stutters or jerks or possibly skips steps.
The hardware setup is untouched since running Mach3, so I'm confident it's not related to the steppers, drivers, wiring etc. Could implementing PID help? If so, what would be the right way to tune the parameters?
My hal and ini are attached if anyone wants to take a look.
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12 Nov 2023 20:33 - 12 Nov 2023 20:34 #285197
by frayja2002
Replied by frayja2002 on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Something like this?
forum.linuxcnc.org/18-computer/44828-rem...rd?start=1310#283944
Make sure you are using the latest firmware (link at bottom of page 134)
Also I found adjusting this helped.
PGAIN = 70
Alex
forum.linuxcnc.org/18-computer/44828-rem...rd?start=1310#283944
Make sure you are using the latest firmware (link at bottom of page 134)
Also I found adjusting this helped.
PGAIN = 70
Alex
Last edit: 12 Nov 2023 20:34 by frayja2002.
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12 Nov 2023 20:33 #285198
by hanskuster
Replied by hanskuster on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Hi all,
I have a EC500 board (RT1052) which I flashed with "remora-rt1052-2.1.1.bin" and uploaded my "ec500-rt1052-DMA.txt"
I can't set any outputs (LEDs) nor read any inputs (switches, NC).
Set outputs can be monitored by wireshark, but apparently the will not be processed by the EC500.
I will use stepper motors with integrated feedback (www.aliexpress.com/item/1005005276593086.html).
When testing moving a motor it also doesn't get any signals.
I'm at the wits' end!
What am I missing or what is wrong?
Do I need additional signals for the EC500 to enable its operation?
I hope a knowledgeable sees the problem
Regards, Hans
I have a EC500 board (RT1052) which I flashed with "remora-rt1052-2.1.1.bin" and uploaded my "ec500-rt1052-DMA.txt"
I can't set any outputs (LEDs) nor read any inputs (switches, NC).
Set outputs can be monitored by wireshark, but apparently the will not be processed by the EC500.
I will use stepper motors with integrated feedback (www.aliexpress.com/item/1005005276593086.html).
When testing moving a motor it also doesn't get any signals.
I'm at the wits' end!
What am I missing or what is wrong?
Do I need additional signals for the EC500 to enable its operation?
I hope a knowledgeable sees the problem

Regards, Hans
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12 Nov 2023 20:37 #285199
by chrstrvs
Replied by chrstrvs on topic Remora - ethernet NVEM / EC300 / EC500 cnc board
Yes, looks and sounds like the issue I have. My NVEM has the STM32 MCU, so it is not the same firmware as for the RT1052 unfortunately.
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