BIG TREE TECH TMC2208 V3.0 Manuale utente

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

BIGTREETECH

TMC2208-V3.0

Stepper motor driver

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

Parameter description

power tube built-in drive current 1.2A ,peak current 2A

256 microsteps per fullstep

interpolation from lower input resolutions

stealthChop2 - for quiet positioning

spreadCycle - for high speed and high dynamics

Low RDSon LS 280mΩ & HS 290mΩ (typ. at 25°C)

Voltage Range 12V/24VDC

Single Wire UART for advanced configuration options

Integrated Pulse Generator for standalone motion

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

Working mode and potentiometer description

1. STEP/DIRmode：

Choice of working mode：MS1、MS2：

Working Current Reference:

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

2.UART mode：

Note: TMC2208 v3.0 has two modes from our factory : step / dir and UART mode.

Customers can choose according to your own needs.

The user who purchases the step / dir mode driver shall perform the following hardwa

re operations on the driver module before wiring (the user who purchases the UART

mode driver does not need any welding operations):

Weld J2 as shown in the purple area, and put the driver in UART mode.

The benefits of UART mode:

1.Motor current can be set arbitrarily by firmware.

2.Micro-steps can be set arbitrarily by firmware (up to 256 actual micro-steps);

3.The actual and interpolated microsteps can be combined to achieve maximum

torque.

4.Firmware can dynamically switch stepper motors between stealthChop2 and

spreadCycle modes through UART.

5.When the motor is not moving, the standby current of the motor can be reduced

dynamically (through UART).

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

Potentiometer regulation instructions:

Clockwise Rotating Potentiometer - Reduces Vref, thereby reducing drive

current;

Counterclockwise rotating potentiometer - Increase Vref, thereby

increasing the driving current.

The accurate voltage of Vref can only be measured when the main

board is supplied with 12V or 24V voltage.

The range of Vref value: default value: 1V (+0.2); MAX: 2V; MIN:

0V;

Rotating potentiometer must not use too much force to prevent

irreversible damage to the potentiometer; when the counter-clockwise

rotation reaches the maximum, if it continues to rotate, it will become the

minimum; similarly, when the clockwise rotation reaches the minimum, if

it continues to rotate, it will become the maximum

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

Firmware change instructions:

Firmware (marlin-bugfix-2.0)

BIGTREETECH SKR V1.3 as example：

Configuration.h files

TMC2208 - means you want to control SilentStepStick through UART.

TMC2208_STANDALONE - does not use UART control but

STEP/DIR .

TMC2208 SilentStepStick，In other words plug and play.

Configuration_adv.h files

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

Pins_BIGTREE_SKR_V1.3.h file

After the firmware is changed, burned the firmware and check whether

the driver is correctly installed is detected.

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

Shenzhen BIGTREE technology co., LTD.

BIG TREE TECH

Attention ：

1. When hardware chooses UART working mode, cautiously use

soldering iron to prevent scalding hands. After treatment, carefully

observe whether there is residual tin slag in the module. It must be

cleaned up to prevent short circuit burning of the module.

2. Pay attention to the line sequence and IO port when wiring. If the

wrong line is connected, the drive will not work.

3. When inserting drive into the main board, pay attention to see the

direction of drive, can not insert backward, to prevent drive from burning.

4.Make sure to do a good job in heat dissipation (heat sink + heat

dissipation fan) before driving to prevent abnormal operation of the drive.

If you encounter problems in use, welcome to contact us, we will be

answer to you ASAP . If you have any good comments or suggestions on

our products, please tell us , we will carefully consider your comments or

Suggestions. Thank you for choosing BIGTREETECH products, thank you!

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