ok i have switch out two different bl touch and have pins setting correct but some how in klipper my bl touch is staying trigger. the light is just red no blinking at all. this is my settings for it.

[bltouch]
sensor_pin: ^PE5
control_pin: PC13
pin_move_time: 0.680
#stow_on_each_sample: True
probe_with_touch_mode: False
pin_up_reports_not_triggered: False
pin_up_touch_mode_reports_triggered: True
#set_output_mode: 5V
x_offset: 27
y_offset: -5
#z_offset: 0.245
speed: 10.0
samples: 1
#sample_retract_dist:
samples_result: average
#samples_tolerance:
#samples_tolerance_retries:

See the "probe" section for information on these parameters.

Hi I'm looking into using the PT100 with the SKR3. I cannot find anywhere for this compatability between the skr3 and pt100's. I know that the PT1000 can be plugged directly into this board and in the firmware you can set this but is it possible to plug the pt100 into this port and change any values to allow this to work correctly.

Thanks

I have enabled sensorless homing on my X and Y axes in marlin and all works well until I need to use the available spare pins of E0DET and E1DET, because these pins are defined as x/y/z max end stops they cant be used for filament detection function or even as spare pins if sensorless homing is enabled.

If I did want to use the filament detection and sensorless homing together I wouldn’t be able to so it defeats the object of having the two very usable functions if you have to sacrifice one for the other

I have tried to work around this but it’s just not allowing it and I need to use those extra pins of E0/E1DET along with sensorless homing on x and y

Maybe one day soon I’ll be able to actually print something with this board once it all works 100%

Dear BTT team,
Can you please also upload a klipper config for the EZ variant (I saw some differences in the schematics)?
I want to make sure I've set my config right.
Also, I'm working on getting it working in my Artillery Genius - you can check out my config here:
https://github.com/Dviros/Klipper-Configs/blob/main/skr_3_EZ_printer.cfg

Thanks in advance!

Hi,
i got a M3 Screw style type K thermocouple and a MAX 31865, but got no clue how to wire this correctly to the SKR-3.
The manual only states that the integrated PT1000 circuit has a much lower resolution, but nothing more.

I seem to be unable to get the ESP32 wifi board to install on the system.

My steps:
I installed a ESP32 board on a BTT SKR 3 EZ motherboard per the docs,
I configured Marlin serial port 3 per the docs and installed that version on the board.
I downloaded the current firmware from the wiki link and compiled it in Platform IO. *no changes in any config files.
I copied the firmware.bin file from the esp8266 directory to an sd card and named it esp3d.bin, then inserted that in the board's SD card slot and reset the board.
the red status lite blinked for a few minutes on both the SKR and ESP boards... then the status lite went out.
according to the docs, the file should be renamed to esp3d.cur afterwards, but the .bin file remained.

At this point. I am not seeing a wifi network with the name of ESP3D. I am seeing one called ESP_xxxxxx (with the xxxxxx being the last 6 of the MAC address on the board) when I connect to that network, (no password), it provides an address in the 192.168.4.x range, and the .1 host does not accept any connections.

Am I missing something? do I need to change something in the firmware? is there a log file or other error message that would tell me what is going on that the firmware did not seem to install correctly?

The instructions on luc-github seem to imply that I need to install the firmware before installing the card on the board... but the instructions in the docs do not mention that.

Hi
I am getting
Unable to write tmc spi 'stepper_x' register GLOBALSCALER
error when I try to home steppers on SKR 3 EZ, using EZ5160 drivers

below is my printer.cfg config, pretty standard with minimal changes. Everything boots up, can heat extruder/bed, when trying to home steppers getting this error. Can be related to software spi but since the card is pretty new not much examples on the web

Thank you!

This file contains common pin mappings for the BigTreeTech SKR 3.

To use this config, the firmware should be compiled for the

STM32H743 with a "128KiB bootloader".

See docs/Config_Reference.md for a description of parameters.

[include mainsail.cfg]

VzBoT############

#######################

[printer]
kinematics: corexy
max_velocity: 2000
max_accel: 50000
#max_accel_to_decel: 100000
max_z_velocity: 30
max_z_accel: 1500
square_corner_velocity: 20

########################
########################

#[mcu rpi]
#serial: /tmp/klipper_host_mcu

[mcu]
serial: /dev/serial/by-id/usb-Klipper_stm32h743xx_1C002C001651303232383230-if00

#[adxl345]
#cs_pin: rpi:None

#[resonance_tester]
#accel_chip: adxl345
#probe_points:

155,155,20 # an example

########################
########################
#[static_digital_output disable_max31865] pins: !PF8

[stepper_x]
step_pin: PD4
dir_pin: PD3
enable_pin: !PD6
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC1
position_endstop: 0
position_max: 200
homing_speed: 50

[stepper_y]
step_pin: PA15
dir_pin: !PA8
enable_pin: !PD1
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC3
position_endstop: 0
position_max: 200
homing_speed: 50

[stepper_z]
step_pin: PE2
dir_pin: PE3
enable_pin: !PE0
microsteps: 16
rotation_distance: 40
endstop_pin: ^PC0
position_endstop: 0.5
position_max: 200

[extruder]
step_pin: PD15
dir_pin: PD14
enable_pin: !PC7
microsteps: 16
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PB3
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PA2
rotation_distance: 5.57
full_steps_per_rotation: 200
filament_diameter: 1.750
max_extrude_only_velocity: 120
max_extrude_only_accel: 800
pressure_advance_smooth_time: 0.02
min_extrude_temp: 170
#control: pid
#pid_Kp: 22.2
#pid_Ki: 1.08
#pid_Kd: 114
min_temp: 0
max_temp: 250

[firmware_retraction]
retract_speed: 120
unretract_extra_length: 0
unretract_speed: 120

#[extruder1]
#step_pin: PD11
#dir_pin: PD10
#enable_pin: !PD13
#heater_pin: PB4
#sensor_pin: PA3
#...

[heater_bed]
heater_pin: PD7
sensor_type: Generic 3950
sensor_pin: PA1
#control: watermark
min_temp: -100
max_temp: 130

[fan]
pin: PB7

[heater_fan fan1]
pin: PB6

#[heater_fan fan2]
#pin: PB5

########################################

EXP1 / EXP2 (display) pins

########################################

[board_pins]
aliases:
# EXP1 header
EXP1_1=PC5, EXP1_3=PB1, EXP1_5=PE9, EXP1_7=PE11, EXP1_9=,
EXP1_2=PB0, EXP1_4=PE8, EXP1_6=PE10, EXP1_8=PE12, EXP1_10=<5V>,
# EXP2 header
EXP2_1=PA6, EXP2_3=PE7, EXP2_5=PB2, EXP2_7=PC4, EXP2_9=,
EXP2_2=PA5, EXP2_4=PA4, EXP2_6=PA7, EXP2_8=, EXP2_10=

See the sample-lcd.cfg file for definitions of common LCD displays.

########################################

TMC2209 configuration

########################################

#[tmc2209 stepper_x]
#uart_pin: PD5
#run_current: 0.800
#diag_pin:

#[tmc2209 stepper_y]
#uart_pin: PD0
#run_current: 0.800
#diag_pin:

[tmc2209 stepper_z]
uart_pin: PE1
run_current: 0.800
diag_pin:

[tmc2209 extruder]
uart_pin: PC6
run_current: 0.600
diag_pin:

#[tmc2209 extruder1]
#uart_pin: PD12
#run_current: 0.600
#diag_pin:

########################################

TMC2130 configuration

########################################

[tmc5160 stepper_x]
cs_pin: PD5
spi_software_miso_pin: PE15
spi_software_mosi_pin: PE13
spi_software_sclk_pin: PE14
diag1_pin: PC1
run_current: 1.800
sense_resistor: 0.075
interpolate: false
stealthchop_threshold: 0

[tmc5160 stepper_y]
cs_pin: PD0
spi_software_miso_pin: PE15
spi_software_mosi_pin: PE13
spi_software_sclk_pin: PE14
run_current: 1.800
sense_resistor: 0.075
interpolate: false
stealthchop_threshold: 0
diag1_pin: PC3

#[tmc2130 stepper_z]
#cs_pin: PE1
#spi_software_miso_pin: PE15
#spi_software_mosi_pin: PE13
#spi_software_sclk_pin: PE14
#run_current: 0.650
#stealthchop_threshold: 999999
#diag1_pin: PC0

#[tmc2130 extruder]
#cs_pin: PC6
#spi_software_miso_pin: PE15
#spi_software_mosi_pin: PE13
#spi_software_sclk_pin: PE14
#run_current: 0.800
#stealthchop_threshold: 999999
#diag1_pin: PC2

#[tmc2130 extruder1]
#cs_pin: PD12
#spi_software_miso_pin: PE15
#spi_software_mosi_pin: PE13
#spi_software_sclk_pin: PE14
#run_current: 0.800
#stealthchop_threshold: 999999
#diag1_pin: PA0

## <---------------------- SAVE_CONFIG ---------------------->
## DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
##
## [extruder]
## control = pid
## pid_kp = 18.160
## pid_ki = 1.131
## pid_kd = 72.869
##
## [heater_bed]
## control = pid
## pid_kp = 35.229
## pid_ki = 0.536
## pid_kd = 578.632

Hello,
I'm trying to flash marlin on a SKR 3 with STM32H723 MCU. After flashing, the file on the sd is renamed .CUR but the display is not working and nothing happen if I plug the USB to my pc (I tried a Windows notebook, a macbook and a Nuc with linux). If i put the board in DFU mode it works and I can dump and flash the bootloader. If I flash Klipper or RRF when I plug the usb to my pc the usb serial device appear without problems. Now it's working with Klipper, but I'd like to use it without a pc connected.
Both Klipper and RFF use a specific configuration for this MCU but I cannot find something similar in Marlin.
Is there someone who successfully flashed Marlin on this version of the board?

I already sent a mail to the support but the say the H743 and H723 version share the same cores.
But if Klipper and RRF made a specific configuration for the 2 versions of the board maybe they aren't the same thing.

Thanks

Hi

according to
https://github.com/bigtreetech/SKR-3/blob/master/Hardware%20(SKR%203%20EZ)/BIGTREETECH%20SKR%203%20EZ%20V1.0-SCH.pdf

Endstop X, Y, Z, E0Det, E1Det have internal pullup resistors 10K.
But when i measure by multimeter
https://github.com/bigtreetech/SKR-3/blob/master/Hardware%20(SKR%203%20EZ)/BIGTREETECH%20SKR%203%20EZ%20V1.0-PIN.pdf
only E0Det and E1Det have 3V3 on pin PC2 and PA0.
But PC0, PC1, PC3 are not 3V3.

What is the real design?

PS. i use recent Marlin software on it.

Updated my Ender 5 Plus with the Mini E3 V3 board and TFT 35 V3.0.1 display.

I've updated Marlin to the most recent 2.1.x bugfix version. I have updated the display firmware per the github page.

Config.h has been updated to reflect all of the stuff

#define SERIAL_PORT 2
#define BAUDRATE 115200
#define SERIAL_PORT_2 -1
#define BAUDRATE_2 115200
#define CR10_STOCKDISPLAY

I've made sure that the baudrate on the display matches the firmware. I've tried 115200 and 250000.

When I switch over to Marlin Mode, the screen says Marlin Mode at the top but I cannot do anything. The touchscreen side works but is giving me the No printer attached error.

Fairly certain I have wired it in correctly. Using the EXP3 slot on the TFT.

Any suggestions are greatly appreciated.

Hello,

I have SKR3 EZ board with old TMC2209 drivers that should be compatible. However, I am getting:

Driver registers:                                                                                                                     
                X       0x00:00:00:00    Bad response!                                                                                
                Y       0xC0:10:00:00                                                                                                 
                Z       0x00:00:00:00    Bad response!                                                                                
                Z2      0x00:00:00:00    Bad response!                                                                                
                E       0x80:14:00:C0                                                                                                 
                                                                                                                                      
                                                                                                                                      
Testing X connection... Error: All LOW                                                                                                
Testing Y connection... OK                                                                                                            
Testing Z connection... Error: All LOW                                                                                                
Testing Z2 connection... Error: All LOW                                                                                               
Testing E connection... OK                                                                                                            
//action:notification TMC CONNECTION ERROR   

but despite of this, all axis can move, so it looks like a spurious error? Also it changes randomly, which connection is ok and which has an error. Z2 is connected to E1, number of extruders is set to 1.

Starts printing. But nothing happens. Writes on the display "Heating BED". but there are no heating numbers on the display, it was 20/0 after starting from the sd, it writes the heating of the table for printing, but nothing happens. so it remains 20/0. The table stays cold.

How to make the motherboard SD card work normally?

suspect that it needs a setting placed in the pins file so we can use ZBM.

In file included from c:\scratch\marlin-bugfix-2.0.9.3.x-skr3\marlin\src\pins\pins.h:876,
from c:\scratch\marlin-bugfix-2.0.9.3.x-skr3\marlin\src\inc\marlinconfig.h:35,
from buildroot/share/PlatformIO/scripts/common-dependencies.h:29:
c:\scratch\marlin-bugfix-2.0.9.3.x-skr3\marlin\src\pins\pins_postprocess.h:790:8: error: #error "No E stepper plug left for Z2!"
790 | #error "No E stepper plug left for Z2!"
| ^~~~~
CalledProcessError: Command '"C:\Users\Stephen.platformio\packages\toolchain-gccarmnoneeabi\bin\arm-none-eabi-g++.exe" -D__MARLIN_FIRMWARE__ -DNDEBUG -DHAL_STM32 -DUSBCON -DUSBD_USE_CDC -DTIM_IRQ_PRIO=13 -DADC_RESOLUTION=12 -DPIN_SERIAL1_RX=PA_10 -DPIN_SERIAL1_TX=PA_9 -DPIN_SERIAL3_RX=PD_9 -DPIN_SERIAL3_TX=PD_8 -DPIN_SERIAL4_RX=PA_1 -DPIN_SERIAL4_TX=PA_0 -DSERIAL_RX_BUFFER_SIZE=1024 -DSERIAL_TX_BUFFER_SIZE=1024 -DTIMER_SERVO=TIM5 -DTIMER_TONE=TIM2 -DSTEP_TIMER_IRQ_PRIO=0 -DD_CACHE_DISABLED -D__MARLIN_DEPS__ -w -dM -E -x c++ buildroot/share/PlatformIO/scripts/common-dependencies.h' returned non-zero exit status 1.:
File "C:\Users\Stephen.platformio\penv\lib\site-packages\platformio\builder\main.py", line 186:
env.SConscript(item, exports="env")
File "C:\Users\Stephen.platformio\packages\tool-scons\scons-local-4.3.0\SCons\Script\SConscript.py", line 597:
return _SConscript(self.fs, *files, **subst_kw)
File "C:\Users\Stephen.platformio\packages\tool-scons\scons-local-4.3.0\SCons\Script\SConscript.py", line 285:
exec(compile(scriptdata, scriptname, 'exec'), call_stack[-1].globals)
File "C:\scratch\Marlin-bugfix-2.0.9.3.x-skr3\buildroot\share\PlatformIO\scripts\common-dependencies.py", line 247:
apply_features_config()
File "C:\scratch\Marlin-bugfix-2.0.9.3.x-skr3\buildroot\share\PlatformIO\scripts\common-dependencies.py", line 133:
if not env.MarlinFeatureIsEnabled(feature):
File "C:\Users\Stephen.platformio\packages\tool-scons\scons-local-4.3.0\SCons\Util.py", line 742:
return self.method(*nargs, **kwargs)
File "C:\scratch\Marlin-bugfix-2.0.9.3.x-skr3\buildroot\share\PlatformIO\scripts\common-dependencies.py", line 216:
load_marlin_features()
File "C:\scratch\Marlin-bugfix-2.0.9.3.x-skr3\buildroot\share\PlatformIO\scripts\common-dependencies.py", line 204:
define_list = run_preprocessor(env)
File "C:\scratch\Marlin-bugfix-2.0.9.3.x-skr3\buildroot\share\PlatformIO\scripts\preprocessor.py", line 42:
define_list = subprocess.check_output(cmd, shell=True).splitlines()
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2800.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 415:
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2800.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 516:
raise CalledProcessError(retcode, process.args,

I have just upgraded to a SKR 3 ez on my Ender 5 Plus and am having issues with my BLTouch v3.1 which does not power on nor respond to any commands. The BLTouch v3.1 in question works on another printer without issue and I have also tested a second BLTouch which also does not function. I have also tried a different set of wires to eliminate this as a possibility.

The console throws an error which reads: "BLTouch failed to verify sensor state"

My Klipper config can be found [HERE (I have updated this with recent changes)]

My BLTouch wiring can be seen above and appears to match the wiring diagram in the manual.

I am starting to suspect a defective board, can anyone sanity check this issue for me?

This ist not a Bug. More a question.

Which bootloader the skr3 ist using? Where i can find it?
I mean the custom bootloader Not the one from stm.

Thank you 👌

Hello,

I just received my board. Successfully compile the Marlin firmware.

I copy firmware.bin on the SD card, and power up the board. The power led turn on, and the status led flashes.

However, I don't get any USB device reported on my computer. I checked the CAN/USB switch, it's in correct position. On the SD card, the FIRMWARE.CUR file appear correctly.

I have no idea what to try next. Any idea ?

I have a skr 3 with tmc2209 driver in uart mode and sensorless homing and all works fine, so i decided to upgrade my drivers to ez2209 with ez driver connectors for better heat dissipation and after installing the new drivers my printers was homing in the wrong direction.
what i have worked out is the end stops are showing triggered with the ez2209 but open with the tmc2209 ?????

In Klipper printer.cfg, sensor type shows no data
[temperature_sensor SKR3_temp]
sensor_type: temperature_mcu
min_temp: 0
max_temp: 100

Hello, I am quite versed in the ability to make my ender 3v2 rotary knob LCD work w both the SKR 1.4 turbo and the SKR 2 which are functionally similar to this board.

I can't figure out why this board doesn't seem to light up the screen like the other two did, and it was functional with the other two.

Any tips would be great. Did the pin tracing and lined up with diagrams and made my own custom cable and all that. Tx/Rx is going to the TFT connector hookup. There is a MISO and MOSI outputs on the EXP1 header and I am debating if I should be instead utilizing those instead of the two TFT pins as in previous board iterations.

Thanks for any info.

Has anyone been successful in getting the SKR 3 to communicate to the MMU2 dip Board through FTF port 2 or any other port for that mater.

I've been working on this for 3 week now and have not had an success ?

Thanks

Hi,

I see from the schematic that the SWCLK and SWDIO connections on the SWD header are shared with SCL and SDA on the AT24C32 EEPROM. The SDA pin on the EEPROM is open drain, and I think SWDIO is usually push pull?

Any recommendations for safely using SWD with this device? My concern is that the EEPROM may attempt to pull SDA low while it's being driven high by an attached ST-Link..

Hello!
Why does X write ALL LOW. Rearranged the driver in some places, but writes an error on X?
Everything prints fine with this error.

Haven't been able to connect to RS232 TFT50 yet. No connection.
I had to connect to UART3. Works but does not print from SD card SKR 3 EZ. He sees the card, writes that the printing has begun, but there is no heating.
From pronterfeys everything prints well and sees the card. But it gives an error M122 X ALL LOW.

Prints well from the SD TFT screen.
When all wires are connected for Marlin mode, the sound from the screen disappears.
Does not stop printing. Do heaters and coolers turn off when you press STOP?
The motors stop.

Please help set up!

PS Foto https://www.dropbox.com/scl/fo/vnacc8recw12cl2iijdbn/h?dl=0&rlkey=3gpb1whn6d95tbdiy4e67ixs9

Received my board Today and tried installing the reprap firmware.
All goes well, firmware.bin renames to FIRMWARE.cur, but everytime I try to connect with putty to flash the WIfi card, I get "Unable to mount SD card" error.
Tried with the latest firmware from teamgloomy, as well as downloading from the official bigtreetech repository. Same error.

If I enable #define pins_debugging I receive:
\marlin\skr-3\skr-3\firmware\marlin-bugfix-2.0.9.3.x\marlin\src\hal\stm32\pinsdebug.h:168:14: error: 'NUM_ANALOG_FIRST' was not declared in this scope; did you mean 'NUM_ANALOG_INPUTS'? 168 | Ard_num -= NUM_ANALOG_FIRST; | ^~~~~~~~~~~~~~~~ | NUM_ANALOG_INPUTS
Any chance this could be patched?
Thank you.

On page 10 of the skr3 manual it shows pins PE13,14,15 as spi pins for the motor spi option but where exactly on the board physically are they? I don’t need motor spi so they are potentially usable pins that I need to use,they are listed on the pins description page in the manual but are not actually broken out on the board as would be expected if they are listed as available pins sonit begs to question where exactly can I find them on the board if they don’t pop up in the other headers anywhere.

I’m starting to regret buying another btt board and it seems btt don’t really reply to anything anymore, maybe I should start trying lerge boards next time.

Hi I have TMC connection error and I can't fix it.

version: Marlin-2.1.x
Board procesor: STM32H743VIT6
TMC: Old BTT TMC2209 v1.2

-------------------M122-----------------------------------------------
Testing X connection... Error: All LOW
Testing Y connection... Error: All LOW
Testing Z connection... Error: All LOW
Testing E connection... Error: All LOW

-------------------my stm32h7.ini-------------------------------------

#
# BigTreeTech SKR V3.0 / V3.0 EZ (STM32H743VIT6 ARM Cortex-M7)
#
[env:STM32H743Vx_btt]
extends                     = stm32_variant
platform                    = ststm32@~15.4.1
platform_packages           = framework-arduinoststm32@~4.20200.220530
board                       = marlin_STM32H743Vx
board_build.offset          = 0x20000
board_upload.offset_address = 0x08020000
build_flags                 = ${stm32_variant.build_flags}
                              -DPIN_SERIAL1_RX=PA_10 -DPIN_SERIAL1_TX=PA_9
                              -DPIN_SERIAL3_RX=PD_9 -DPIN_SERIAL3_TX=PD_8
                              -DPIN_SERIAL4_RX=PA_1 -DPIN_SERIAL4_TX=PA_0
                              -DSERIAL_RX_BUFFER_SIZE=1024 -DSERIAL_TX_BUFFER_SIZE=1024
                              -DTIMER_SERVO=TIM5 -DTIMER_TONE=TIM2
                              -DSTEP_TIMER_IRQ_PRIO=0
                              -DD_CACHE_DISABLED
upload_protocol             = cmsis-dap
debug_tool                  = cmsis-dap

---------------------------After I start build-----------------------------

Processing STM32H743Vx_btt (platform: ststm32@~15.4.1; board: marlin_STM32H743Vx; framework: arduino)
-----------------------------------------------------------------------------------------------------------------------------------------------------Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/ststm32/marlin_STM32H743Vx.html
PLATFORM: ST STM32 (15.4.1) > STM32H743VI (1024k RAM. 2048k Flash)
HARDWARE: STM32H743VIT6 480MHz, 1MB RAM, 2MB Flash
DEBUG: Current (cmsis-dap) External (cmsis-dap, jlink, stlink)    
PACKAGES:
 - framework-arduinoststm32 @ 4.20200.221104 (2.2.0)
 - framework-cmsis @ 2.50700.210515 (5.7.0)
 - toolchain-gccarmnoneeabi @ 1.90201.191206 (9.2.1)
Converting Marlin.ino
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft

------------------------Photos--------------------------------------------

user manual v01.00 1st draft 2022/04/15, page 10:
pinout for al motors 2B2A1A1B i wrong!. Phases pins should be adjacent (xBxBxAxA or xAxAxBxB) wher x is 1 or 2. Please confirm

Ordering of connection on schematics () of the E1DM 2x8 pin connector does not match the pin ordering on the bottom silkscreen.

The bottom silk screen shows:
EN M0 M1 M2 RST SLP STP DIR
The schematic shows:
EN M1 M2 M3 RST SLO STP DIR

additionally, the other 8 pin connector bottom silk screen shows:
VM GND B1 B2 A2 A1 VDD GND
Whereas the schematic shows the connector is:
VT G 2B 2A 1A 1B V G

Which is correct? Please and thank you.

I have a fresh install of vscode/platformio, and a fresh download of this repo, no changes. i hit build, and it says fatal error: variant_MARLIN_STM32H743VX.h: No such file or directory

i cant find any reference to this file at all
This was on ubuntu, tried it under windows and it worked first shot

Upgrading from SKR 1.4. TMC2209 on all axes. Installed all jumpers according to manual.

Sensorless homing not working.

Send: M122
Recv: X Y Z E E1
Recv: Address 0 0 0 0 0
Recv: Enabled false false false false false
Recv: Set current 800 800 800 800 800
Recv: RMS current 1436 1436 1436 1436 1436
Recv: MAX current 2025 2025 2025 2025 2025
Recv: Run current 25/31 25/31 25/31 25/31 25/31
Recv: Hold current 12/31 12/31 12/31 12/31 12/31
Recv: CS actual 0/31 0/31 0/31 0/31 0/31
Recv: PWM scale
Recv: vsense 0=.325 0=.325 0=.325 0=.325 0=.325
Recv: stealthChop false false false false false
Recv: msteps 256 256 256 256 256
Recv: interp false false false false false
Recv: tstep 0 0 0 0 0
Recv: PWM thresh. 1756 1756 10541 3077 3077
Recv: [mm/s] 90 90 3 30 30
Recv: OT prewarn false false false false false
Recv: triggered
Recv: OTP false false false false false
Recv: pwm scale sum 0 0 0 0 0
Recv: pwm scale auto 0 0 0 0 0
Recv: pwm offset auto 0 0 0 0 0
Recv: pwm grad auto 0 0 0 0 0
Recv: off time 0 0 0 0 0
Recv: blank time 16 16 16 16 16
Recv: hysteresis
Recv: -end -3 -3 -3 -3 -3
Recv: -start 1 1 1 1 1
Recv: Stallguard thrs 80 70 0 0 0
Recv: uStep count 0 0 0 0 0
Recv: DRVSTATUS X Y Z E E1
Recv: sg_result 0 0 0 0 0
Recv: stst * * * * *
Recv: olb
Recv: ola
Recv: s2gb
Recv: s2ga
Recv: otpw
Recv: ot
Recv: 157C
Recv: 150C
Recv: 143C
Recv: 120C
Recv: s2vsa
Recv: s2vsb
Recv: Driver registers:
Recv: X 0x00:00:00:00 Bad response!
Recv: Y 0x00:00:00:00 Bad response!
Recv: Z 0x00:00:00:00 Bad response!
Recv: E 0x00:00:00:00 Bad response!
Recv: E1 0x00:00:00:00 Bad response!
Recv:
Recv:
Recv: Testing X connection... Error: All LOW
Recv: Testing Y connection... Error: All LOW
Recv: Testing Z connection... Error: All LOW
Recv: Testing E connection... Error: All LOW
Recv: Testing E1 connection... Error: All LOW

Hello, it is advertised in the manual and on the website that the skr ez supports powering the raspberry pi directly. I don't see any explanation on this anywhere. I would really appreciate some help. thank you.

trying to instal a SKR 3 EZ in my ender 5 pro but when I plug in the bl Touch the BigTreeTech tft goes off I have tried turning the plug around but nothing can anyone tell me where i'm going wrong

I have a knock off bl touch and I cannot get it to correctly home. I have tried all variants of probe_with_touch_mode: True, False;
pin_up_touch_mode_reports_triggered: False, True, and taking the pulloff of the sensor pin. My sensor pin is ^PC13, and the control pin is PE5. The wiring is solid, it tests correctly when starting up my printer, and it responds to the commands for debugging minus the open status for all query probes. My z offset is set to 0.00. My other printer works as expected with the cr touch/SKR 3 combo but this combo has not so far. Any ideas?

Hotend never reaches set temperature with M109 command. If, for example i issue M109 T1 R230, hotend gets to about 220 and then suddenly starts cooling down. After about a minute printer halts with Recv: Error:Heating failed, system stopped! Heater_ID: E1

I have new PT1000 cartridges, jumpers set accordingly. Otherwise hotends can reach any temperature, but not with M109
This happens randomly with both E0 and E1 regardless of temp target with both M104 and M109

Has anyone else had any problems with a Reprapdiscount full graphic LCD not having any display?

Hello,

should this board be compatible with vanila Marlin 2.1? I use mostly the same config as for 2.0.9 from this git, but after flash, I get error:
error:eeprom datasize error.
and board does not boot. Is this known problem?

Hi,
The TFT35 E3 v3.0.1 connected to SKR3-EZ shows "no printer attached"

SKR3-EZ

Using the latest marlin firmware with the following changes:

• file: Configuration.h

#define STRING_CONFIG_H_AUTHOR "(18.9.22, SKR3EZ)" // Who made the changes.
#define MOTHERBOARD BOARD_BTT_SKR_V3_0_EZ
#define SERIAL_PORT -1 // Enable TFT serial port
#define BAUDRATE 115200
#define SERIAL_PORT_2 1 // Enable USB emulated serial port
#define X_DRIVER_TYPE  TMC2209
#define Y_DRIVER_TYPE  TMC2209
#define Z_DRIVER_TYPE  TMC2209
#define Z2_DRIVER_TYPE TMC2209
#define E0_DRIVER_TYPE TMC2209
#define EEPROM_SETTINGS     // Persistent storage with M500 and M501
#define SDSUPPORT
#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

• file: Configuration_adv.h

#define LONG_FILENAME_HOST_SUPPORT   
#define AUTO_REPORT_SD_STATUS         // Auto-report media status with 'M27 S<seconds>'
#define SDCARD_CONNECTION ONBOARD
#define BABYSTEPPING
#define EMERGENCY_PARSER
#define SERIAL_FLOAT_PRECISION 4
#define SENSORLESS_HOMING // StallGuard capable drivers only
#define IMPROVE_HOMING_RELIABILITY
#define TMC_DEBUG
#define AUTO_REPORT_POSITION
#define M115_GEOMETRY_REPORT
#define M114_DETAIL         // Use 'M114` for details to check planner calculations
#define REPORT_FAN_CHANGE   // Report the new fan speed when changed by M106 (and others)
#define HOST_ACTION_COMMANDS
#define HOST_PROMPT_SUPPORT           // Initiate host prompts to get user feedback
#define HOST_STATUS_NOTIFICATIONS   // Send some status messages to the host as notifications

TFT35 E3

Firmware used: BIGTREE_TFT35_V3.0_E3.27.x.bin with the default config.ini file, yet the info screen shows GD_TFT35_E3_V3.0

Output

the output of the M115 command is

SENDING:M115
FIRMWARE_NAME:Marlin bugfix-2.1.x (Sep 19 2022 09:48:14) SOURCE_CODE_URL:github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:jm3d EXTRUDER_COUNT:1 UUID:cede2a2f-41a2-4748-9b12-c55c62f367ff
Cap:SERIAL_XON_XOFF:0
Cap:BINARY_FILE_TRANSFER:0
Cap:EEPROM:1
Cap:VOLUMETRIC:1
Cap:AUTOREPORT_POS:1
Cap:AUTOREPORT_TEMP:1
Cap:PROGRESS:0
Cap:PRINT_JOB:1
Cap:AUTOLEVEL:0
Cap:RUNOUT:0
Cap:Z_PROBE:0
Cap:LEVELING_DATA:0
Cap:BUILD_PERCENT:0
Cap:SOFTWARE_POWER:0
Cap:TOGGLE_LIGHTS:0
Cap:CASE_LIGHT_BRIGHTNESS:0
Cap:EMERGENCY_PARSER:1
Cap:HOST_ACTION_COMMANDS:1
Cap:PROMPT_SUPPORT:1
Cap:SDCARD:1
Cap:MULTI_VOLUME:0
Cap:REPEAT:0
Cap:SD_WRITE:1
Cap:AUTOREPORT_SD_STATUS:1
Cap:LONG_FILENAME:1
Cap:LFN_WRITE:0
Cap:CUSTOM_FIRMWARE_UPLOAD:0
Cap:EXTENDED_M20:1
Cap:THERMAL_PROTECTION:1
Cap:MOTION_MODES:0
Cap:ARCS:1
Cap:BABYSTEPPING:1
Cap:CHAMBER_TEMPERATURE:0
Cap:COOLER_TEMPERATURE:0
Cap:MEATPACK:0
Cap:CONFIG_EXPORT:0
area:{full:{min:{x:0.0000,y:0.0000,z:0.0000},max:{x:200.0000,y:200.0000,z:200.0000}},work:{min:{x:0.0000,y:0.0000,z:0.0000},max:{x:200.0000,y:200.0000,z:200.0000}}}

Hi friends , sorry for basic question, but let me explain the problem...
I have bought a new skr 3 (not ez) version with tmc2209 ez drivers and ez connector ...
I used to use 800 miliamps for XYZE but someone said thats too high and thats the reason of my steppers overheating... so i lowered them to around 650
On X Y Z axis it worked and still works perfectly fine, but in E0 it started to underextrude ,skipping steps , terriblenoise ,etc, so i tried all the solutions and at the end i revert the amps to 750, and it kinda solved
But now , i still get noise , underextruding and etc on Extruder ...
And No help even with fan blowing to drivers
Also i tried to use spreadcycle in E0 (instead of stealth chop) but it had no diffrence , still getting noise even in one hour prints ,
And also i tried running drivers without fan , and their temps was around 50°C , is this ok? Or they are overheating?

Also microsteps:
X Y 64
Z 8 or 16
E 8

Hi, When I attach the SKR3 EZ to my computer with a USB cable, I cannot communicate using YAT (among others) as no COM port is created. The indicator lights show that the RepRap firmware has been installed. What am I doing wrong?

Jerry

My Display (Type: DZ2004A) form the Geeetech Prusa I3 Pro X doesn´t start even the Backlight with Marlin 2.1.2.

I Installed the SKR 3.0 (no EZ) on my Geeetech and the Display wouldn`t show something.

1. I compliled marlin several times with different Display-types (REPRAP_DISCOUNT_SMART_CONTROLLER, REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER),
2. switched the cables
3. tried to take my old GT2560, plugged the LCD-Wire in. (worked, so the Display seems to be fine)

Now I think the Pinout May be faulty. Do you have an advice?

You will find my Confiuration.h in the attatchments

If you're going to be slimy and silently change the variant of the MCU being manufactured on your boards, at least document the change with an incremented version number and proper support.

Thanks!

Is it possible to connect the Ender 3 V2 screen without rework? If redoing what and how? I ordered an EZ motherboard, while I'm waiting for the package, I want to set up Marlin.

i got a SKR3 with a diff MCU (STM32H723VGT6). look like Marlin Firmware can load, as firmware.bin has change to firmware.CUR. But USB communication with PC are not alive, no COM Port detected. Any one has this issue.

Platform.ini-
platformio]
src_dir = Marlin
boards_dir = buildroot/share/PlatformIO/boards
default_envs = STM32H743Vx_btt
include_dir = Marlin
extra_configs =
Marlin/config.ini
ini/avr.ini
ini/due.ini
ini/esp32.ini
ini/features.ini
ini/lpc176x.ini
ini/native.ini
ini/samd21.ini
ini/samd51.ini
ini/stm32-common.ini
ini/stm32f0.ini
ini/stm32f1-maple.ini
ini/stm32f1.ini
ini/stm32f4.ini
ini/stm32f7.ini
ini/stm32h7.ini
ini/stm32g0.ini
ini/teensy.ini
ini/renamed.ini

Config.h-
// Choose the name from boards.h that matches your setup
#ifndef MOTHERBOARD
#define MOTHERBOARD BOARD_BTT_SKR_V3_0
#endif

#define SERIAL_PORT -1

/**

• Serial Port Baud Rate
• This is the default communication speed for all serial ports.
• Set the baud rate defaults for additional serial ports below.
• 250000 works in most cases, but you might try a lower speed if
• you commonly experience drop-outs during host printing.
• You may try up to 1000000 to speed up SD file transfer.
• :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000]
  */
  #define BAUDRATE 250000

//#define BAUD_RATE_GCODE // Enable G-code M575 to set the baud rate

/**

• Select a secondary serial port on the board to use for communication with the host.
• Currently Ethernet (-2) is only supported on Teensy 4.1 boards.
• :[-2, -1, 0, 1, 2, 3, 4, 5, 6, 7]
  */
  #define SERIAL_PORT_2 1
  #define BAUDRATE_2 250000 // :[2400, 9600, 19200, 38400, 57600, 115200, 250000, 500000, 1000000] Enable to override BAUDRATE

I had been trubled extruder heater 0 couldn't turn on.
After troubleshooting, I discover jumper pin was inserted imperfectly.
In the trobuleshooting, I found out the jumper pin usase in user manual and this issue is spoted.
This misalige is only for English and normal driver version.

BIGTREETECH SKR 3 user manual.pdf

Why marlin send error when power on printer? I use tmc2209 v1.2 uart by bigtreetech. I can't move any axis. When compile firmware not have error but printer can't move axis.

I not understand why this problem, with skr2 vb when put tmc2209 v1.2 all work fine withouth any problem....

The below section was taken from the Octopus configuration provided by BTT. Can we have the same added for the SKR3 generic cfg file provided in the github repo when using BTT mini1284 display?

########################################
# EXP1 / EXP2 (display) pins
########################################

[board_pins]
aliases:
    # EXP1 header
    EXP1_1=PE8, EXP1_2=PE7,
    EXP1_3=PE9, EXP1_4=PE10,
    EXP1_5=PE12, EXP1_6=PE13,    # Slot in the socket on this side
    EXP1_7=PE14, EXP1_8=PE15,
    EXP1_9=<GND>, EXP1_10=<5V>,

    # EXP2 header
    EXP2_1=PA6, EXP2_2=PA5,
    EXP2_3=PB1, EXP2_4=PA4,
    EXP2_5=PB2, EXP2_6=PA7,      # Slot in the socket on this side
    EXP2_7=PC15, EXP2_8=<RST>,
    EXP2_9=<GND>, EXP2_10=<5V>


######################################################################
#  Mini 12864Panel (with neopixel backlight leds)
######################################################################

[display]
lcd_type: uc1701
cs_pin: EXP1_3
a0_pin: EXP1_4
rst_pin: EXP1_5
encoder_pins: ^EXP2_5, ^EXP2_3
click_pin: ^!EXP1_2
spi_bus: spi            # Some micro-controller boards may require an spi bus to be specified:
contrast: 63            # Alternatively, some micro-controller boards may work with software spi:
spi_software_mosi_pin: PA7
spi_software_miso_pin: PA6
spi_software_sclk_pin: PA5

[output_pin beeper]
pin: EXP1_1

[neopixel btt_mini12864]
pin: EXP1_6
chain_count: 3
color_order: RGB
initial_RED: 0.4
initial_GREEN: 0.4
initial_BLUE: 0.4

Using #define TEMP_SENSOR_BED 11 on line 508 of Configuration.h of the BTT version of Marlin-bugfix-2.0.9.x throws the following error on compile

In file included from Marlin\src\inc/MarlinConfigPre.h:37, from Marlin\src\inc/MarlinConfig.h:28, from Marlin\src\MarlinCore.h:24, from Marlin\src\MarlinCore.cpp:31: Marlin\src\module/thermistor/thermistors.h:217:22: error: 'temptable_1' was not declared in this scope; did you mean 'temptable_11'? 217 | #define _TT_NAME(_N) temptable_ ## _N | ^~~~~~~~~~ Marlin\src\inc/../core/macros.h:280:37: note: in definition of macro 'COUNT' 280 | #define COUNT(a) (sizeof(a)/sizeof(*a)) | ^ Marlin\src\module/thermistor/thermistors.h:218:21: note: in expansion of macro '_TT_NAME' 218 | #define TT_NAME(_N) _TT_NAME(_N) | ^~~~~~~~ Marlin\src\module/thermistor/thermistors.h:229:23: note: in expansion of macro 'TT_NAME' 229 | #define TEMPTABLE_1 TT_NAME(TEMP_SENSOR_1) | ^~~~~~~ Marlin\src\module/thermistor/thermistors.h:230:33: note: in expansion of macro 'TEMPTABLE_1' 230 | #define TEMPTABLE_1_LEN COUNT(TEMPTABLE_1) | ^~~~~~~~~~~ Marlin\src\module/thermistor/thermistors.h:327:46: note: in expansion of macro 'TEMPTABLE_1_LEN' 327 | static_assert(255 > TEMPTABLE_0_LEN || 255 > TEMPTABLE_1_LEN || 255 > TEMPTABLE_2_LEN || 255 > TEMPTABLE_3_LEN | ^~~~~~~~~~~~~~~ Marlin\src\module/thermistor/thermistors.h:217:22: error: 'temptable_1' was not declared in this scope; did you mean 'temptable_11'? 217 | #define _TT_NAME(_N) temptable_ ## _N | ^~~~~~~~~~ Marlin\src\inc/../core/macros.h:280:48: note: in definition of macro 'COUNT' 280 | #define COUNT(a) (sizeof(a)/sizeof(*a)) | ^ Marlin\src\module/thermistor/thermistors.h:218:21: note: in expansion of macro '_TT_NAME' 218 | #define TT_NAME(_N) _TT_NAME(_N) | ^~~~~~~~ Marlin\src\module/thermistor/thermistors.h:229:23: note: in expansion of macro 'TT_NAME' 229 | #define TEMPTABLE_1 TT_NAME(TEMP_SENSOR_1) | ^~~~~~~ Marlin\src\module/thermistor/thermistors.h:230:33: note: in expansion of macro 'TEMPTABLE_1' 230 | #define TEMPTABLE_1_LEN COUNT(TEMPTABLE_1) | ^~~~~~~~~~~ Marlin\src\module/thermistor/thermistors.h:327:46: note: in expansion of macro 'TEMPTABLE_1_LEN' 327 | static_assert(255 > TEMPTABLE_0_LEN || 255 > TEMPTABLE_1_LEN || 255 > TEMPTABLE_2_LEN || 255 > TEMPTABLE_3_LEN | ^~~~~~~~~~~~~~~ *** [.pio\build\STM32H743Vx_btt\src\src\MarlinCore.cpp.o] Error 1 In file included from Marlin\src\core\../inc/MarlinConfigPre.h:37, from Marlin\src\core\utility.h:24, from Marlin\src\core\utility.cpp:23: Marlin\src\core\../module/thermistor/thermistors.h:217:22: error: 'temptable_1' was not declared in this scope; did you mean 'temptable_11'? 217 | #define _TT_NAME(_N) temptable_ ## _N | ^~~~~~~~~~ Marlin\src\core\../inc/../core/macros.h:280:37: note: in definition of macro 'COUNT' 280 | #define COUNT(a) (sizeof(a)/sizeof(*a)) | ^ Marlin\src\core\../module/thermistor/thermistors.h:218:21: note: in expansion of macro '_TT_NAME' 218 | #define TT_NAME(_N) _TT_NAME(_N) | ^~~~~~~~ Marlin\src\core\../module/thermistor/thermistors.h:229:23: note: in expansion of macro 'TT_NAME' 229 | #define TEMPTABLE_1 TT_NAME(TEMP_SENSOR_1) | ^~~~~~~ Marlin\src\core\../module/thermistor/thermistors.h:230:33: note: in expansion of macro 'TEMPTABLE_1' 230 | #define TEMPTABLE_1_LEN COUNT(TEMPTABLE_1) | ^~~~~~~~~~~ Marlin\src\core\../module/thermistor/thermistors.h:327:46: note: in expansion of macro 'TEMPTABLE_1_LEN' 327 | static_assert(255 > TEMPTABLE_0_LEN || 255 > TEMPTABLE_1_LEN || 255 > TEMPTABLE_2_LEN || 255 > TEMPTABLE_3_LEN | ^~~~~~~~~~~~~~~ Marlin\src\core\../module/thermistor/thermistors.h:217:22: error: 'temptable_1' was not declared in this scope; did you mean 'temptable_11'? 217 | #define _TT_NAME(_N) temptable_ ## _N | ^~~~~~~~~~ Marlin\src\core\../inc/../core/macros.h:280:48: note: in definition of macro 'COUNT' 280 | #define COUNT(a) (sizeof(a)/sizeof(*a)) | ^ Marlin\src\core\../module/thermistor/thermistors.h:218:21: note: in expansion of macro '_TT_NAME' 218 | #define TT_NAME(_N) _TT_NAME(_N) | ^~~~~~~~ Marlin\src\core\../module/thermistor/thermistors.h:229:23: note: in expansion of macro 'TT_NAME' 229 | #define TEMPTABLE_1 TT_NAME(TEMP_SENSOR_1) | ^~~~~~~ Marlin\src\core\../module/thermistor/thermistors.h:230:33: note: in expansion of macro 'TEMPTABLE_1' 230 | #define TEMPTABLE_1_LEN COUNT(TEMPTABLE_1) | ^~~~~~~~~~~ Marlin\src\core\../module/thermistor/thermistors.h:327:46: note: in expansion of macro 'TEMPTABLE_1_LEN' 327 | static_assert(255 > TEMPTABLE_0_LEN || 255 > TEMPTABLE_1_LEN || 255 > TEMPTABLE_2_LEN || 255 > TEMPTABLE_3_LEN | ^~~~~~~~~~~~~~~ *** [.pio\build\STM32H743Vx_btt\src\src\core\utility.cpp.o] Error 1

Hello,
I want to update the marlin on the motherboard(SKR3 EZ) but it won't load the firmware from the SD card.
The previous Firmware works on it. I want to change some settings.
What's the mistake?
MARLIN 2.1.2
I tried with another SD card. It does not rename the firmware.bin file to .cur on the SD card.

Thanks!