Remora - ethernet NVEM cnc board
02 Oct 2022 18:39 #253276
by widder
Installed everything according to the video tutorial (Remora NVEM Getting Started).
Unfortunately, as with "Capper" is an
error message no feedback.
Controller board is NVEM V2
I would be grateful for any help
Replied by widder on topic Remora - ethernet NVEM cnc board
Hello, I've been following the project for a long time and I think it's very good.yes, i am using the NVEM-basic-configuration from youre github. As you mentioned, my plan was to take this as an example for further adjustments.
That error occures every time the software tryes to move the Motors (not only while jogging). After that error i have to reinitiate the machine.
By turning down the feedspeed to ~0.9mm/min, i could observe that the pos_cmd seems to count up until it reaches the FERROR-value from the config.
My setup constist out of the NVEM with one Stepperdriver (DM422 without feedback) attached to the x-axis. Endstops and other stuff are detached.
Instead of an raspberry i am running an Desktop-PC with the Linuxcnc-Debian10 (Buster) version you can find here in the forum.
could it be possible, that the communication between NVEM and linuxcnc has any problems? I had to set the static IP via "/etc/network/interfaces" instead of the "etc/dhcpcd.conf", like you've done in the video.
if there are any logs needed, just let me know.
Edit:
This board is about 4 Years old btw. There are clearly differences in the layout between yours and mine.
Don't think this really matters but who knows.
Also, i have to withdraw my statement, where I've said the inputs can be observed. Checked it and it's not the case.
So, after uploading the Basic-configuration.txt (successfully), with x,y,z Motors and and several Inputpins (Input 3 & 4)
i am not able to get any feedback at all.
Installed everything according to the video tutorial (Remora NVEM Getting Started).
Unfortunately, as with "Capper" is an
error message no feedback.
Controller board is NVEM V2
I would be grateful for any help
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03 Oct 2022 04:32 #253309
by scotta
Replied by scotta on topic Remora - ethernet NVEM cnc board
epineh was kind enough to send me down his NVEM and donated a couple of ST-Links to get me up and going again. A big thanks!
I've got the NVEM connected via DAPlink as well.
openOCD config for the board is
I've got the NVEM connected via DAPlink as well.
openOCD config for the board is
# NXP i.MX RT1050 family (Arm Cortex-M7 @ 600 MHz)
#
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME imxrt1050
}
source [find target/swj-dp.tcl]
if { [info exists CPU_SWD_TAPID] } {
set _CPU_SWD_TAPID $CPU_SWD_TAPID
} else {
set _CPU_SWD_TAPID 0x0bd11477
}
if { [using_jtag] } {
set _CPU_TAPID 0
} else {
set _CPU_TAPID $_CPU_SWD_TAPID
}
swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPU_TAPID
set _TARGETNAME $_CHIPNAME
dap create $_TARGETNAME.dap -chain-position $_TARGETNAME.cpu
target create $_TARGETNAME cortex_m -dap $_TARGETNAME.dap
if { ![using_hla] } {
cortex_m reset_config sysresetreq
}
gdb_breakpoint_override hard
adapter speed 1000Attachments:
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03 Oct 2022 06:15 - 03 Oct 2022 12:00 #253313
by MX_Master
Replied by MX_Master on topic Remora - ethernet NVEM cnc board
Here is one more option to connect to the RT1052 - i.MX RT Flashloader. Available on the nxp.com and fully documented 
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07 Oct 2022 21:02 #253716
by scotta
If the board has been configured this way this would be the most straight forward way to program the board as all is needed is a USB to RS232 adaptor. There is a second serial port for the MPG which I did not try.
Replied by scotta on topic Remora - ethernet NVEM cnc board
Some more research, Flashloader and MCUBootUtility rely on the Serial Download mode through UART / USB when the board is booted in that mode by pulling Boot 0 pin high. I thought that the push button would serve this purpose. I've tried to get a response from the board through the RS232 serial port without success. This mode does rely on the default pins (pads) for the UART to be used, but we have no way of telling the connections without removing the RT1050.Here is one more option to connect to the RT1052 - i.MX RT Flashloader. Available on the nxp.com and fully documented
If the board has been configured this way this would be the most straight forward way to program the board as all is needed is a USB to RS232 adaptor. There is a second serial port for the MPG which I did not try.
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