BIG TREE TECH MANTA M8P V1.0 User manual

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BIGTREETECH
MANTA M8P V1.0
User Manual

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Contents
Contents.....................................................................2
Revision History .............................................................5
1 Brief Introduction ............................................................6
1.1 Main Features .........................................................6
1.2 Basic Parameters ......................................................7
1.3 Product Dimension .....................................................9
2 Peripheral Interface .........................................................10
2.1 Interface Diagram .....................................................10
2.2 Pin-out...............................................................10
3 Interface Instruction .........................................................11
3.1 USB Power Supply ....................................................11
3.2 Stepper Motor Drive ...................................................11
3.2.1 Normal STEP/DIR(STANDALONE) Mode ...........................11
3.2.2 UART Mode of TMC Driver .......................................12
3.2.3 SPI Mode of TMC Driver..........................................13
3.2.4 DIAG(Sensorless Homing) of TMC Driver ...........................13
3.2.5 Selection of driving power supply for stepping motor .................13
3.3 Installing the Core Board ...............................................14
3.4 Voltage Selection of CNC Fans .........................................15
3.5 100K NTC or PT1000 Setting ...........................................15
3.6 BLTouch Wiring .......................................................16
3.7 Auto Shutdown Module(Relay V1.2) Wiring ...............................16
3.8 EXP1+EXP2 and LCD Screen Wiring ....................................17
3.9 RGB Wiring ..........................................................17
3.10 Filament Runout Detection Wiring ......................................18
3.11 40 Pin GPIO.........................................................18
3.12 DSI/CSI Connection ..................................................19

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3.13 Proximity Switch Wiring ...............................................19
3.14 Wiring of the 4-wire CNC Fan and the Water Cooling Device(12V as an
example, as shown in the following figure:)...................................20
4. Raspberry PI CM4 Setup steps...............................................21
4.1 Download OS Image...................................................21
4.2 Download and Install Raspberry Pi Imager................................21
4.3 Write OS Image .......................................................22
4.3.1 CM4 LITE Version (Micro SD Card) ................................22
4.3.2 CM4 eMMC Version(Note: eMMC version will not tun the system from the
Micro SD card.) ......................................................25
4.4. System Settings (CM4) ................................................26
4.4.1 USB 2.0 Hub Ports ..............................................26
4.4.2 DSI1 Display Interface ...........................................26
4.4.3 CSI1 Camera ...................................................26
5. BIGTREETECH CB1 Setup steps ............................................27
5.1 Download OS Image...................................................27
5.2 Download and Install Raspberry Pi Imager................................27
5.3 Write OS Image .......................................................27
5.4 WIFI Setting ..........................................................29
5.5 Install Klipper with kiauh Script ..........................................30
5.6 Checkout Klipper Branch ...............................................31
5.7 Fix KlipperScreen .....................................................33
6. Configure the motherboard ..................................................34
6.1 ssh connect to device..................................................34
6.2 Compile firmware .....................................................36
6.3 Firmware update ......................................................37
6.3.1 Update using SD Card ...........................................37
6.3.2 Update using DFU ...............................................37
6.4 Configure Klipper......................................................38

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7 Precautions ................................................................39

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Revision History
Revision
Description
Date
01.00
First Draft
2022/06/18
01.01
Delete 31865
2022/08/04

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1 Brief Introduction
BIGTREETECH MANTA M8P is a 32-bit printer motherboard developed by the 3D
printing team of Shenzhen Big Tree Technology Co., Ltd. for Klipper firmware. You
can simply plug in the core board to run the Klipper firmware, which greatly
simplifies the connection between the motherboard and the Raspberry Pi, and
saves a lot of space. Moreover, the BTB connector is designed to install CM4 or
other solutions to solve the current expensive problem of CM4.
1.1 Main Features
1. Adopt 32-bit 64MHz ARM Cortex-M0+ series STM32G0B1VET6 as the main
control chip;
2. The power chip, TPS5450-5A, supports DC12/24V power input. The output
current of the chip is up to 5A, and the peak value can reach 6A, which
perfectly supports the power supply of Raspberry Pi;
3. There is a BOOT button reserved on the motherboard, users can update the
bootloader through DFU;
4. The thermistor part includes a protection circuit that protects the main control
chip from the possibility of burning caused by leakage of the heated bed or
heater cartridge;
5. 24V, 12V, and 5V voltages are available for CNC fans, eliminating the need
for an external transformer module, thereby reducing the chance of damage
to the motherboard due to improper operation;
6. The thermistor can select the pull-up resistor value through the jumper, in this
way, it supports PT1000 without an external module, which is convenient for
customers to DIY;
7. The MCU firmware can be updated via an SD card, or through Klipper's make
flash command using DFU;
8. The motherboard and the core board use the BTB connection to allow using
other solutions other than CM4;
9. On-board TMC-driver SPI and UART working modes, on-board DIAG function
pins, can be used by simply plugging and unplugging the jumper cap;
10. Support filament runout detection, auto shutdown, BLTouch, RGB lights...
11. High efficiency MOSFET for less heat generation;
12. Adopt replaceable fuse for easy replacement;

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13. Three-way four-wire fan interface is reserved, and can be used to connect the
water cooling device;
14. The proximity switch interface is reserved, supports NPN and PNP types,
(24V, 12V, 5V) voltage selection is available, common voltage selection with
VFAN6;
15. Provide the SPI expansion interface to allow Klipper firmware users to
connect an external acceleration sensor for acceleration compensation.
1.2 Basic Parameters
1. Product Size: 170 x 102.7mm, you can read more details here
BIGTREETECH MANTA M8P V1.0-SIZE-top.pdf
2. Installation Size: Please read: BIGTREETECH MANTA M8P V1.0-SIZE-
top.pdf
3. Microprocessor: ARM Cortex-M0+ STM32G0B1VET6 64MHz
4. Drive Input Voltage: VIN（12V/24V） Or HV(≤56V)
5. Motherboard Input Voltage: VIN=DC12V or DC24V
6. Heated Bed Input Voltage: BED IN=DC12V or DC24V
7. Logic Voltage: DC3.3V
8. Heating Port: Heated Bed(HB), Heater Cartridge(HE0, HE1, HE2, HE3)
9. The maximum output current of the heated bed port: 10A, Peak Value: 12A
10. The maximum output current of the heater cartridge port: 5.5A, Peak Value:
6A
11. Fan Port: Two-wire CNC Fan (FAN0, FAN1, FAN2, FAN3), four-wire CNC Fan
fan (FAN4, FAN5, FAN6), Always-on Fan (24V FAN x 2), among which the
CNC Fan voltages are 5V, 12V, 24V optional
12. The maximum output current of the fan port: 1A, Peak Value: 1.5A
13. Total current for heater cartridge + driver + fan: ＜12A
14. Extended Interface: BLTouch(Servos, Probe), PS-ON, Fil-DET, RGBx2, SPI
15. Motor Driver: Support TMC5160, TMC2209, TMC2225, TMC2226, TMC2208,
TMC2130, ST820, LV8729, DRV8825, A4988...
16. Driver Working Mode Support: SPI, UART, STEP/DIR

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17. Motor Drive Interface: Motor1, Motor2, Motor3(dual motor interface), Motor4,
Motor5, Motor6, Motor7, Motor8, a total of Eight
18. Temperature Sensor Interface: 5-way 100K NTC, of which 4-way 100K NTC
and PT1000 are optional
19. Support Screen: SPI Touch Screen, LCD Screen
20. PC Communication Interface: Type-C
21. Functional Interface: USB 2.0 x 3, LAN, DSI, CSI, SPI, 40Pin-GPIO, HDMI0
and HDMI1, SOC-Card, MCU-Card
22. Support Machine Structure: Cartesian, Delta, Kossel, Ultimaker, CoreXY
23. Recommended Software: Cura, Simplify3D, Pronterface, Repetier-host,
Makerware

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1.3 Product Dimension

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2 Peripheral Interface
2.1 Interface Diagram
2.2 Pin-out

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3 Interface Instruction
3.1 USB Power Supply
After the M8P motherboard is powered on, the D32 red light on the left side of the
MCU will light up, indicating that the power supply is normal. The VUSB in the
middle of the board is the power selection terminal. Only when using USB to
supply power to the motherboard or need to supply power through USB, do you
need to use the jumper to short it.
3.2 Stepper Motor Drive
3.2.1 Normal STEP/DIR(STANDALONE) Mode
For example, A4988, DRV8825, LV8729, ST820...use the jumper cap to short
MS0-MS2 according to the driver subdivision table.
Note: If using A4988or DRV8825, RST and SLP must be shorted with jumper
caps for normal operation.
Driver Chip
MS1
MS2
MS3
Subdivisi
on
Excitation Mode
A4988
Max 16
Subdivisions
35V 2A
L
L
L
Full Step
2 Phase
H
L
L
1/2
1-2 Phase
L
H
L
1/4
W1-2 Phase
H
H
L
1/8
2W1-2 Phase
H
H
H
1/16
4W1-2 Phase
Driving Current
Calculation
Formula
𝐑𝑆=0.1Ω
𝐈𝐓𝐫𝐢𝐩𝐌𝐀𝐗 = 𝐕𝐑𝐄𝐅
𝟖 ∗ 𝐑𝑆

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Driver Chip
MD3
MD2
MD1
Subdivis
ion
Excitation Mode
LV8729
Max 128
Subdivisions
36V 1.8A
L
L
L
Full
Step
2 Phase
L
L
H
1/2
1-2 Phase
L
H
L
1/4
W1-2 Phase
L
H
H
1/8
2W1-2 Phase
H
L
L
1/16
4W1-2 Phase
H
L
H
1/32
8W1-2 Phase
H
H
L
1/64
16W1-2 Phase
H
H
H
1/128
32W1-2 Phase
Driving Current
Calculation
Formula
RF1=0.22Ω
𝐈OUT = (𝐕𝐑𝐄𝐅 / 5 ) / RF1
Driver Chip
MS3
MS2
MS1
Subdivision
ST820
Max 256
Subdivisions
45V 1.5A
L
L
L
Full Step
L
L
H
1/2
L
H
L
1/4
L
H
H
1/8
H
L
L
1/16
H
L
H
1/32
H
H
L
1/128
H
H
H
1/256
Driving Current
Calculation
Formula
Rs=0.15Ω
𝐈𝐩𝐞𝐚𝐤 = 𝐕𝐑𝐄𝐅∗ 𝐕𝐃𝐃
𝟓 ∗ 𝐑𝐒
3.2.2 UART Mode of TMC Driver
For example, TMC2208, TMC2209, TMC2225... Use a jumper cap for each to
connect the position of the red box in the figure, and the subdivision and driver
current is set by firmware.

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3.2.3 SPI Mode of TMC Driver
For example, TMC2130, TMC5160, TMC5161... Use 4 jumper caps for each to
connect the position of the red box in the figure, and the subdivision and driver
current is set by firmware.
3.2.4 DIAG(Sensorless Homing) of TMC Driver
As shown in the figure, plug the jumper cap when using the Sensorless Homing
function, and leave it unplugged when it is not used.
3.2.5 Selection of driving power supply for stepping motor

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3.3 Installing the Core Board
M8P+CM4: Pay attention to the direction, as shown below.
M8P+CB1: Pay attention to the direction, as shown below.

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3.4 Voltage Selection of CNC Fans
Set the output voltage to 5V, 12V, or 24V with a jumper cap. Note: Please confirm
the fan's operating voltage before choosing a voltage. Our company is not
responsible for fan burnout caused by wrong selection.
3.5 100K NTC or PT1000 Setting
When using a 100K NTC thermistor, there is no need to insert the jumper cap,
and the pull-up resistance of TH0-TH3 is 4.7K 0.1%. When using PT1000, you
need to use a jumper cap to connect the two pins in the red box in the figure
below and connect a 4.12K 0.1% resistor in parallel. At this time, the pull-up
resistor of TH0-TH1 is 2.2K (Note: The temperature accuracy read out in this way
will be far less accurate than that read out by MAX31865).

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3.6 BLTouch Wiring
3.7 Auto Shutdown Module(Relay V1.2) Wiring

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3.8 EXP1+EXP2 and LCD Screen Wiring
3.9 RGB Wiring

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3.10 Filament Runout Detection Wiring
3.11 40 Pin GPIO
5V
GND
PC2

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3.12 DSI/CSI Connection
3.13 Proximity Switch Wiring
Always on (NPN type), no need to short-circuit via a jumper cap, 24V as an
example, as shown in the following figure:

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Always off (PNP type), need to short-circuit via a jumper cap, 24V as an example,
as shown in the following figure:
3.14 Wiring of the 4-wire CNC Fan and the Water Cooling Device(12V
as an example, as shown in the following figure:)