gnea / grbl-lpc

Gnea

Gnea(tm) is an open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on an ARM-based microprocessor. This project is intended to be the next step for the popular AVR Arduino-based Grbl-firmware and will be developed and maintained by Grbl's developers.

Coming soon!

grbl-lpc's Issues

Homing not tested

Hi,

This means the input pins for switches are disabled or just not tested?

Br Frank

Compatible with Bigtreetech SKR V1.3?

Is this compatible with the Bigtreetech SKR V1.3 control board with the LPC1768 chipset. It also is Smoothieware compatible.

https://www.amazon.com/BIQU-Printer-Smoothieboard-Compatible-Ramps1-4/dp/B07P87J274

please help, compileeeeee

have everyone tutorial how can i make this:

Build notes:

• You should use virtual machines, if you use multiple toolchains on the same PC.
• Install make if not already there (for Windows see http://gnuwin32.sourceforge.net/packages/make.htm)
• Install the ARM embeded toolchain (see https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads)
• Include make and the arm-none-eabi-* tools in your path.
• Run git submodule init and git submodule update before building.
• make produces 2 files:
  • build/firmware.bin: this is compatible with the sdcard bootloader.
  • build/grbl.hex: this is not compatible with the sdcard bootloader. It loads using Flash Magic
    and is primarilly for developers who don't want to keep swapping sdcards. If you flash this,
    then you'll have to reflash the bootloader if you want to go back.

i am not a programator :(

Compile thew project for MKSSBASE1.3

Hi i need to compile this project for the MKSSBASE1.3 i have a problem whit this manual: https://github.com/gnea/grbl-LPC/wiki

i can compile only original smoothieware firmware, but i can not compile this firmware for MKSSBASE1.3 ...

have everyone tutorial?

thanks, sorry for my enslish

this is a very cool project!!!!

here is my maschine whit arduino, but i have now MKSSBASE:
https://www.youtube.com/watch?v=YtH1sCQrMhk

Open drain outputs

Is there a easy way to set the LPC pin config to open drain output for using external stepper drivers with optoisolators?

Thanks

Jim

M9 not working on mks

Hi.
I'm running my DIY laser with mks sboard 1.3, firmware for TTL 1.23 and solenoid connected to pin 2.6 and lightburn. I've got problem with air assist - it turns on as gcode is executed, but doesn't turn off.
If I turn off USB and power supply for rest, solenoid closes, as i turn USB first for board and later power supply for all other stuff, solenoid stays closed, but if power supply is turned on first and USB later, solenoid is opened.
Is it configuration problem?

Safety door detected as opened

Latest release (11th Feb 2020). Just started to setup the mks-sbase v1.3 on the test bench.

Currently nothing connected (no steppers / endstops), when I connect with laserweb I get the error Error 13 - Safety door detected as opened.....

I've tried both grounding and applying 5v to p1.22 but the error does not clear.

Any help most appreciated.

How to compile Firmware.bin without Arduino IDE (LPC17xx)

Im really badly stuck with compiling instructions, how to make firmware.bin without Arduino IDE / VSCode Platformio, since LPC17 based MKS SBASE 1.4 cant used on those and this branch is right ment for that kind of boards

Ive trying to follow several different instructions, but those are not so newbie friendly like step by step, which softwares to use, which commands should send and where.

Compile errors

Hello,

i love this idea and want test the Homing Feature on a smoothieboard. But first of all i try to compile the grbl-lpc on my cloud9 workspace, but:

xpix:~/workspace

 (master) $ make
/bin/sh -c "mkdir -p \"build\""
/bin/sh -c "mkdir -p \"build/src\""
arm-none-eabi-g++ -DCORE_M3 -DLPC175x_6x -c -fdata-sections -ffunction-sections -fmessage-length=0 -fno-builtin -fno-delete-null-pointer-checks -fno-exceptions -fomit-frame-pointer -funsigned-char -mcpu=cortex-m3 -MMD -MP -mthumb -Os -Wall -Wextra  -fno-rtti  -DCORE_M3 -DLPC175x_6x -c -fdata-sections -ffunction-sections -fmessage-length=0 -fno-builtin -fno-delete-null-pointer-checks -fno-exceptions -fomit-frame-pointer -funsigned-char -mcpu=cortex-m3 -MMD -MP -mthumb -Os -Wall -Wextra  -Wno-unused-parameter  -I CMSIS_5/CMSIS/Core/Include -I CMSIS_5/CMSIS/Driver/Include -I CMSIS_5/Device/ARM/ARMCM3/Include -I grbl -I grbl-lpc -I lpc17xx -I VCOM_lib  -o build/src/coolant_control.o grbl/coolant_control.c
In file included from grbl/grbl.h:42:0,
                 from grbl/coolant_control.c:21:
grbl-lpc/debug.h:24:18: fatal error: atomic: No such file or directory
 #include <atomic>
                  ^
compilation terminated.
make: *** [build/src/coolant_control.o] Error 1
xpix:~/workspace (master) $ amke clean
bash: amke: command not found
xpix:~/workspace (master) $ make clean
/bin/sh -c "rm -rf \"build\""
xpix:~/workspace (master) $ make
/bin/sh -c "mkdir -p \"build\""
/bin/sh -c "mkdir -p \"build/src\""
arm-none-eabi-g++ -DCORE_M3 -DLPC175x_6x -c -fdata-sections -ffunction-sections -fmessage-length=0 -fno-builtin -fno-delete-null-pointer-checks -fno-exceptions -fomit-frame-pointer -funsigned-char -mcpu=cortex-m3 -MMD -MP -mthumb -Os -Wall -Wextra  -fno-rtti  -DCORE_M3 -DLPC175x_6x -c -fdata-sections -ffunction-sections -fmessage-length=0 -fno-builtin -fno-delete-null-pointer-checks -fno-exceptions -fomit-frame-pointer -funsigned-char -mcpu=cortex-m3 -MMD -MP -mthumb -Os -Wall -Wextra  -Wno-unused-parameter  -I CMSIS_5/CMSIS/Core/Include -I CMSIS_5/CMSIS/Driver/Include -I CMSIS_5/Device/ARM/ARMCM3/Include -I grbl -I grbl-lpc -I lpc17xx -I VCOM_lib  -o build/src/coolant_control.o grbl/coolant_control.c
In file included from grbl/grbl.h:42:0,
                 from grbl/coolant_control.c:21:
grbl-lpc/debug.h:24:18: fatal error: atomic: No such file or directory
 #include <atomic>
                  ^
compilation terminated.
make: *** [build/src/coolant_control.o] Error 1
xpix:~/workspace (master) $ make
/bin/sh -c "mkdir -p \"build\""
/bin/sh -c "mkdir -p \"build/src\""
arm-none-eabi-g++ -DCORE_M3 -DLPC175x_6x -c -fdata-sections -ffunction-sections -fmessage-length=0 -fno-builtin -fno-delete-null-pointer-checks -fno-exceptions -fomit-frame-pointer -funsigned-char -mcpu=cortex-m3 -MMD -MP -mthumb -Os -Wall -Wextra  -fno-rtti  -DCORE_M3 -DLPC175x_6x -c -fdata-sections -ffunction-sections -fmessage-length=0 -fno-builtin -fno-delete-null-pointer-checks -fno-exceptions -fomit-frame-pointer -funsigned-char -mcpu=cortex-m3 -MMD -MP -mthumb -Os -Wall -Wextra  -Wno-unused-parameter  -I CMSIS_5/CMSIS/Core/Include -I CMSIS_5/CMSIS/Driver/Include -I CMSIS_5/Device/ARM/ARMCM3/Include -I grbl -I grbl-lpc -I lpc17xx -I VCOM_lib  -o build/src/coolant_control.o grbl/coolant_control.c
In file included from grbl/grbl.h:44:0,
                 from grbl/coolant_control.c:21:
grbl-lpc/delay.h:42:71: warning: multi-character character constant [-Wmultichar]
     delay_loop(get_time(), uint32_t(uint64_t(SystemCoreClock) * us / 1'000'000));

I removed
-std=gnu++14 and "atomic" include in debug.h, but run in the next error.
I think i'm wrong :)

Can somebody help me to install the correct packages

pn:PA triggered on MKS

Hello,
I have wired my 3 limit switches NC ($5=1) and in the serial I'm reading Pn:PA and I get an alarm triggered by it obviously.
All 3 switches are recognized and when I press them and I'm reading Pn:PXA when pressing X so they are working.
I guess I have to use a jumper on two pins somewhere on the MKS board to close the limit of 4th axis(?)
I'm just guessing it is the 4th axis as I can see all the feeds in the settings like $113

Can I remove this with any setting in the software or can someone point me to the right pins to jumper on the MKS 1.3 board?

how to compile master to binary

hi how can i that do?

MKS Sgen L

Hello,
i test GRBL with Arduino Uno for CO² Laser.
But the Controller is to slow.

So i buy an MKS SGen L
but with Marlin 2.0 and Smoothieware didnt work.

Here is GRBL LPC availe for MKS SBase thats work with LPC1758 prozessor.
Is it posible to pinmapping for Sgen L and dissable the stepper current over software.
Or have some one a firmeware for this board.

current run plan and pin out are here:
https://github.com/makerbase-mks/SGEN_L

Sorry for my bad english :)

arduino cnc sheild grbl setup

LPC boards

@cprezzi @tbfleming : I'm unfamiliar with LPC boards. Can you provide a list of compatible LPC boards supported? If I understand correctly, there are others like Panucatt's Azteeg X5, which I can easily request for. I think it'll probably be a good idea for me to have one on hand.

Windows Comiple Issue

Good morning I hope someone might be able to point me in the right direction.

I am using a windows 10 system.
I have installed the GNU make for windows and the GNU ARM toolchain
I have git cloned this repository, then git submodule init and the update (received checksums)
I have been to the environment variables and added the toolchain and make bins to the local user Path
I have tested the version of the toolchain and make and got positive response.

But when I "make" this is my response:

C:/Program Files/Git/usr/bin/sh.exe -c "mkdir -p "build""
/usr/bin/sh: C:/Program: No such file or directory
make: *** [build/src/coolant_control.o] Error 127

Any help would be much appreciated

Compiling in Platform IO

Hi !

Could you help me please, I m wondering if it is possible to compile your new firmware grbl lpc with Platform IO ?

I have a mks robin nano V3 and I saw it can handle a laser so I d like to try... Other question : if I can t compile in PIO, how to do with arduino 1.8.13 ? As I could see, proc is a STM32F407VGT6 known as STM32 ARM Cortex-M4F in marlin nighly.

I hope been clear...

Thank you a lot

Setting up an MKS board - PWM/TTL

Hi, I posted this (MKS) a few minutes back then found this forum.

Can someone please assist me with this.

Is the TTL with pin 1.23 option locked at 0 to 5vdc PWM or what? Yeah, I am a neophyte with this. :)

I do not want to fry the Laser internal electronics.

Thanks

grbl-lpc on LPC1768 at 100MHz

Hi Claudio,

I'm looking around for some hardware to retrofit into a laser cutter and use laserweb/grbl-lpc. I hope you have a moment to answer my question.

From looking at the grbl-lpc code it looks like it runs at 120MHz.

#define XTAL (12000000UL) /* Oscillator
frequency */

This would imply an LPC1769 is needed and the LPC1768 is not fast enough (or code changes are needed for 100MHz).

I see mention on reddit that it works on some 1768 boards, should I adjust the above for 100MHz perhaps?

https://www.reddit.com/r/hobbycnc/comments/6b9p48/grbllpc/

Many thanks,
Tom

Laser PWM PIN how can i find it?

Hi, how can i find it PWM pin on the MKS Sbase v1.3?

And hawe this board pin for TH or TL for laser activation on CO2 PSU?

Thank you.

Error in checksum calculation in flash.cpp

There's a compile warning in grbl-LPC about the checksum calculation routine in flash.cpp. There's a logical OR in the code which should be a bitwise OR. Existing code shouldn't generate spurious errors, but I don't think it will really catch any errors either. It basically returns the last character in the memory block potentially with 1 added.

I've included a patch below.

Thanks, Gil

diff --git a/grbl-lpc/flash.cpp b/grbl-lpc/flash.cpp
index a42b843..aabc422 100644
--- a/grbl-lpc/flash.cpp
+++ b/grbl-lpc/flash.cpp
@@ -77,7 +77,7 @@ static unsigned char memcpy_with_checksum(char *dest, char *src, unsigned size)
     unsigned char checksum = 0;
     while (size--)
     {
-        checksum = ((checksum << 1) || (checksum >> 7)) + *src;
+        checksum = ((checksum << 1) | (checksum >> 7)) + *src;
         *dest++ = *src++;
     }
     return checksum;

grbl-LPC on AZSMZ Mini Board

Hello together,
It's my first time setting up Laserweb4. I am having trouble flashing LPC to the AZSMZ Mini board (Smoothieware works fine) and am wondering if this board has been tested before by you?

When I copy the firmware.bin to the SD Card and boot the board LED1 and LED2 are blinking and after that no LED is visible at all. The filename on the SD changes to FIRMWARE.CUR, but it is not possible to connect via SERIAL. Any ideas would be very helpful!

Thank you in advance,
Nico

Can this run on LPC1768? SKR boards?

Hi, can GRBL-LPC also run on LCP1768 boards like the Bigtreetech SKR v1.3 board?

Homing does not move motors

Firmware and Board Version
grbl 1.1f
MKS-SBASE v1.3

Input and Output

$$

 $0=1
 $1=25
 $2=0
 $3=3
 $4=0
 $5=0
 $6=0
 $10=0
 $11=0.010
 $12=0.002
 $13=0
 $20=0
 $21=0
 $22=1
 $23=1
 $24=25.000
 $25=500.000
 $26=250
 $27=5.000
 $30=1000
 $31=0
 $32=1
 $33=1000.000
 $34=0.000
 $35=0.000
 $36=100.000
 $100=160.000
 $101=160.000
 $102=160.000
 $110=24000.000
 $111=24000.000
 $112=24000.000
 $120=1500.000
 $121=1500.000
 $122=1000.000
 $130=300.000
 $131=200.000
 $132=50.000
 $140=0.400
 $141=0.600
 $142=0.000

$H

 ALARM: 9 - Homing fail. Could not find limit switch within search distance. Defined as 1.5 * max_travel on search and 5 * pulloff on locate phases.

Expected Behavior
Motors moving in the -X and +Y direction until end stops.

Observed Behavior
Motors not moving at all.
Motors "locking" and making high pitch noise.