TRINAMIC TMC2208-EVAL Evolution Board User Manual
- June 10, 2024
- TRINAMIC
Table of Contents
Now part of Maxim Integrated
EVALUATION BOARD
Evaluation Board for Stepper
TMC2208-EVAL Evaluation Board
Document Revision V1.0 · 2019-MAY-08
The TMC2208-EVAL allows evaluation of the TMC2208 in combination with the
Trinamic evaluation board system, or as stand-alone-board. It uses the
standard schematic and offers several options in order to test different modes
of operation.
Features
- 2-phase stepper motor up to 1.35A coil current (2A peak)
- Supply Voltage 4.75. . . 36V DC
- UART
- 1…256 microsteps
- Step/Dir interface
- StealthChop™ silent PWM mode
- SpreadCycle™ smart mixed decay
Applications
- Compatible Design Upgrade
- 3D Printers
- Printers, POS
- Office and home automation
- Textile, Sewing Machines
- CCTV, Security
- ATM, Cash recycler
- HVAC
Simplified Block Diagram
Getting Started
You need
- TMC2208-EVAL
- Landungsbruecke or Startrampe with latest firmware
- TMC2208-Bridge
- Stepper motor (e.g. QMot line)
- USB interface
- Power Supply
- Latest TMCL-IDE V3.0 and PC
- Cables for interface, motors and power
Precautions
- Do not mix up connections or short-circuit pins.
- Avoid bundling I/O wires with motor wires.
- Do not exceed the maximum rated supply supply voltage!
- Do not connect or disconnect the motor while powered!
- START WITH POWER SUPPLY OFF!
Figure 1: Getting started
©2021 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany Terms of delivery and rights to technical change reserved. Download newest version at www.trinamic.com Downloaded from Arrow.com.
TMC2208-EVAL Evaluation Board · Document Revision V1.0 · 2019-MAY-08
First Start-Up
-
Make sure that the latest version of the TMCL-IDE 3.0 is installed. The TMCL-IDE can be downloaded from www.trinamic.com/support/software/tmcl-ide/.
-
Open the TMCL-IDE and connect the Landungsbruecke or Startrampe via USB to the computer. For Windows 8 and higher is no driver needed, on Windows 7 machines the TMCL-IDE is installing the driver automatically.
-
Verify that the Landungsbruecke or Startrampe is using the latest firmware version. The firmware version is shown in the connected device tree.
-
The TMCL-IDE 3.0 needs room to show all important information and to provide a good overview. Therefore, arrange the main window related to your needs. We recommend using full screen. For evaluation boards it is essential to have access to the registers. Therefore open up the Register Browser (left side). For a better view click top right on the normal icon to get a maximized register browser window.
-
The TMCL-IDE includes a dialogue for diagnostic tasks. Further, the dialogue provides an overview of the connected motion controller and driver chips. Thus, a window pops up immediately after connecting the evaluation kit the first time. The window shows the actual status of the connections. The second tab of the dialogue offers the possibility to choose basic settings or to reset the module to factory 1defaults.
Hardware Information
All design files for our evaluation boards are available for free. We offer
the original ECAD files, Gerber data, the BOM, and PDF copies. Typically, the
ECAD files are in KiCAD format. Some (older) evaluation boards may only be
available in Eagle, Altium, or PADS format. Please check schematics for Jumper
settings and input/output connector description.
The files can be downloaded from the evaluation boards’ website directly at
out homepage: TRINAMIC Eval Kit homepage.
Note
If files are missing on the website or something is wrong please send us a
note.
Bridge Board Jumpers
The TMC2208 Bridge board provides multiple jumpers. The UART Jumper selects between 3 different options for the PDN_UART pin.
| Option | Function |
|---|---|
| μC | UART communication enabled |
| SHDN | PDN_UART = GND (stand still power down enabled) |
| Open | PDN_UART = open (stand still power down disabled) |
Table 1: Jumper
UART The CLK jumper selects the CLK input source.
| Option | Function |
|---|---|
| Ext | CLK comes from Microcontroller. Allows to try with different frequencies |
| Int | CLK input at GND; uses internal clock source default |
| open | CLK input at GND; uses internal clock source default (internal pull |
down, not recommended)
Table 2: Jumper
CLK The VREF jumper selects between different source for the motor current setting pin VREF.
| Option | Function |
|---|---|
| PWM | VREF input of driver can be controlled by Microcontroller PWM. Set motor |
base current via the duty cycle
POT| VREF input is controlled via the Poti. Scale motor current using poti.
open| Internal reference used
Table 3: Jumper VREF
The jumpers MS1 and MS2 select the microstep resolution in standalone mode.
| MS1 | MS2 | Function |
|---|---|---|
| 0 | 0 | 8 microsteps |
| 1 | 0 | 2 microsteps |
| 0 | 1 | 4 microsteps |
| 1 | 1 | 16 microsteps |
Table 4: Jumpers MS1 and MS2
The Jumper ENABLE disables or enables the driver.
| Option | Function |
|---|---|
| EN | Driver is enabled |
| DIS | Driver is disabled. In this mode, it is allowed to remove / attach a |
motor.
open| undefined
Table 5: Jumper ENABLE
Onboard Jumpers and OTP
The TMC2208-Eval board has two jumpers to select between Step/Direction source between MCU and external pin header (lower right corner). The silk screen also displays the three OTP bytes in the IC. The user can mark programmed bits manually to remember which bits have been set in the IC.
Evaluation Features in the TMCL-IDE
This chapter gives some hints and tips on using the functionality of the TMCL- IDE, e.g., how to use the velocity mode or some feature-based tools.
Note
In order to achieve good settings please refer to descriptions and
flowcharts in the TMC2208-LA data sheet. The register browser of the TMCL-IDE
provides helpful information about any currently selected parameter. Beyond
that, the data sheet explains concepts and ideas which are essential for
understanding how the registers are linked together and which setting will fit
for which kind of application. For getting more familiar with the evaluation
kit in the beginning of your examinations, drive the motor using velocity mode
and/or positioning mode first. Beyond this, the direct mode function can be
used. This way, TMCL commands can be sent to the evaluation board system.
Velocity Mode
To move the motor in velocity mode, open the velocity mode tool by clicking the appropriate entry in the tool tree. In the velocity mode tool you can enter the desired velocity and acceleration and then move the motor using the arrow buttons. The motor can be stopped at any time by clicking the stop button. Open the velocity graph tool to get a graphical view of the actual velocity.
Note
In order to get a more accurate graphical velocity view, close the register
browser window when using the velocity graph.
Figure 4: Driving the motor in velocity mode (TMCL-IDE provides similar view for TMC2208-EVAL)
Position Mode
To move the motor in position mode, open the position mode tool by clicking
the appropriate entry in the tool tree. In the position mode tool you can
enter a target position and then start positioning by clicking the Absolute or
Relative Move button. The speed and acceleration used for positioning can also
be adjusted here.
Open the position graph tool to get a graphical view of the actual position.
Note
In order to get a more accurate graphical position view, close the register
browser window when using the position graph.
Figure 5: Driving the motor in position mode (TMCL-IDE provides similar view for TMC2208-EVAL)
Revision History
Document Revision
| Version | Date | Author | Description |
|---|---|---|---|
| 0.9 | 2017-OCT-19 | MN | Initial release. |
| 1.0 | 2019-MAY-08 | OM | Bridge board jumper description added. |
Table 6: Document Revision
©2021 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany
Terms of delivery and rights to technical change reserved.
Download newest version at www.trinamic.com
Downloaded from Arrow.com.
Read entire documentation.
Documents / Resources
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