Mikroelektronika d.o.o.
Multi-Stepper TB62269 Click-Platine
Multi-Stepper TB62269 Click-Platine
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Das Multi Stepper TB62269 Click Board™ ist eine kompakte Zusatzplatine, die einen bipolaren Schrittmotortreiber enthält. Diese Platine verfügt über den TB62269FTG, einen bipolaren Schrittmotortreiber mit CLOCK-in-Steuerung per PWM-Methode von Toshiba Semiconductor. Er unterstützt einen PWM-Antrieb mit konstantem Strom und ermöglicht eine Auflösung von Vollschritt bis zu 1/32 Schritten für weniger Motorgeräusche und eine sanftere Steuerung. Er verfügt über einen großen Betriebsspannungsbereich von 10 V bis 38 V mit einer Ausgangsstromkapazität von 1,2 A sowie über mehrere integrierte Fehlererkennungsschaltungen. Dieses Click Board™ ist die perfekte Lösung für Schrittmotoren in verschiedenen Anwendungen wie Büroautomatisierung, kommerziellen und industriellen Geräten.
Das Multi Stepper TB62269 Click Board™ wird von einer mikroSDK-kompatiblen Bibliothek unterstützt, die Funktionen enthält, die die Softwareentwicklung vereinfachen. Dieses Click Board™ wird als vollständig getestetes Produkt geliefert und ist bereit für den Einsatz auf einem System, das mit der mikroBUS™-Buchse ausgestattet ist.
How Does The Multi Stepper TC62269 Click Board™ Work?
The Multi Stepper TC62269 Click Board™ as its foundation uses the TB62269FTG, a two-phase bipolar stepping motor driver using a PWM chopper (customized by external resistance R2 and capacitor C1) from Toshiba Semiconductor. The TB62269FTG comes with a built-in clock-in decoder (CLOCK-in controlled), which means that each up-edge of the CLK signal, routed to the PWM pin of the mikroBUS™ socket, will shift the motor's electrical angle per step. It also incorporates a low on-resistance MOSFET output stage, which can deliver a 1.2A current with a motor output voltage rating of 38V, in addition to integrated protection mechanisms such as over-current and over-temperature detection. In addition, it allows from full-step up to 1/32 steps resolution, with the help of which motor noise can be significantly reduced with smoother operation and more precise control.
As mentioned before, the TB62269FTG supports various step resolution configurations through its control signals. These control signals are provided through the PCA9555A port expander, which establishes communication with the MCU via the I2C serial interface. This Click board™ also allows a connection of external step-resolution control signals on the onboard header J1 on pins labelled as P1 and P2 for the device's DMODE1 and DMODE2 control. The PCA9555A also allows choosing the least significant bit (LSB) of its I2C slave address by positioning SMD jumpers labelled as ADDR SEL to an appropriate position marked as 0 and 1.
The output channels current value can be set manually using an onboard trimmer labelled as VR1, which sets the reference voltage from 0V to 3.3V. The default configuration of the JP4 jumper is the VREF position that sets both channels' output current via the VR1 trimmer. In this case, avoid position P4 on a jumper JP4 since the VREFA pin requires analogue signal for setting.
Also, this Click board™ has a Standby function, activated when all three step-resolution control signals are on its low logic state, used to switch to Standby mode by setting all motor control pins to a low logic state. When the Standby mode is active, the TB62269FTG stops supplying the power to the internal oscillating circuit and motor output part (the motor drive cannot be performed).
In addition to the I2C communication, several GPIO pins connected to the mikroBUS™ socket are also used. The Enable pin, labelled as EN and routed to the CS pin of the mikroBUS™ socket, optimizes power consumption used for power ON/OFF purposes. Also, a simple rotation direction function routed to the AN pin on the mikroBUS™ socket allows MCU to manage the direction of the stepper motor (clockwise or counterclockwise), while the RST pin of the mikroBUS™ socket initializes an electrical angle in the internal counter to set an initial position.
When it comes to angle monitoring, this driver has a dual way of monitoring selected by positioning SMD jumper labelled as JP5 to an appropriate position marked as P6 or INT, which choose to monitor via expander or INT pin of the mikroBUS™ socket. In the case of the selected INT position of the JP5 jumper, the JP10 jumper needs to be unpopulated. Also, it has an additional LED for anomaly indication. Suppose a state such as an overtemperature or overcurrent is detected. In that case, such anomaly is indicated by a red LED marked as DIAG and via P7 pin over the I2C INT to the mikroBUS™ INT pin, proceeding JP5 is set to P6.
The Multi Stepper TC62269 Click Board™ supports an external power supply for the TB62269FTG, which can be connected to the input terminal labelled as VM and should be within the range of 10V to 38V, while the stepper motor coils can be connected to the terminals labelled as B+, B-, A-, and A+.
The Multi Stepper TC62269 Click Board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
| Type | Stepper |
| Applications | Can be used for stepping motors in various applications such as office automation, commercial, and industrial equipment |
| On-board modules | TB62269FTG - CLOCK-in controlled bipolar stepping motor driver from Toshiba Semiconductor |
| Key Features | Low power consumption, capable of controlling 1 bipolar stepping motor, from full-step up to 1/32 steps resolution, built-in clock decoder, integrated error detection circuits, and more |
| Interface | GPIO,I2C |
| Compatibility | mikroBUS |
| Click board size | L (57.15 x 25.4 mm) |
| Input Voltage | External,3.3V or 5V |
PINOUT DIAGRAM
This table shows how the pinout of the Multi Stepper TC62269 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| Rotation Direction | AN | 1 | AN | PWM | 16 | CLK | Clock Signal |
| Reset | RST | 2 | RST | INT | 15 | INT | Interrupt |
| Enable | EN | 3 | CS | RX | 14 | NC | |
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| LD2 | DIAG | - | Anomaly Detection LED Indicator |
| JP1-JP2 | ADDR SEL | Left | I2C Address Selection 0/1: Left position 0, Right position 1 |
| JP3 | VCC SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
| JP4 | JP4 | Left | A-Channel Current Reference Selection VREF/P4: Left position VREF, Right position P4 |
| JP5 | JP5 | Left | Angle Monitoring Selection P6/INT: Left position P6, Right position INT |
| JP10 | JP10 | Populated | Angle Monitoring via Expander |
| J1 | J1 | Unpopulated | External Step Resolution Signals Connection Header |
| VR1 | VR1 | - | Current Threshold Trimmer |
| TP1 | VREF | - | Voltage Reference Testpoint |
| TP2 | OSCM | - | Oscillating Circuit Crequency Testpoint |
| TP3 | GND | - | Ground Testpoint |
MULTI STEPPER CLICK - TB62269 ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage VCC | 3.3 | - | 5 | V |
| External Supply Voltage VM | 10 | 24 | 38 | V |
| Motor Output Current | - | 1.2 | - | A |
| Motor Output Voltage | 10 | - | 38 | V |
| Operating Temperature Range | -20 | +25 | +85 | °C |
Software Support
We provide a library for the Multi Stepper TC62269 Click Board™ as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on MikroE the Github account.
Library Description
This library contains API for the Multi Stepper TC62269 Click Board™ driver.
Key functions
-
multisteppertb62269_set_step_modeThis function sets the step mode resolution settings. -
multisteppertb62269_drive_motorThis function drives the motor for the specific number of steps at the selected speed. -
multisteppertb62269_set_directionThis function sets the motor direction by setting the AN pin logic state.
Example Description
This example demonstrates the use of the Multi Stepper TC62269 Click Board™ by driving the motor in both directions for a desired number of steps.
void application_task ( void )
{
log_printf ( &logger, " Move 200 steps clockwise rnn" );
multisteppertb62269_set_direction ( &multisteppertb62269, MULTISTEPPERTB62269_DIR_CW );
multisteppertb62269_drive_motor ( &multisteppertb62269, 200, MULTISTEPPERTB62269_SPEED_FAST );
Delay_ms ( 2000 );
log_printf ( &logger, " Move 100 steps counter-clockwise rnn" );
multisteppertb62269_set_direction ( &multisteppertb62269, MULTISTEPPERTB62269_DIR_CCW );
multisteppertb62269_drive_motor ( &multisteppertb62269, 100, MULTISTEPPERTB62269_SPEED_FAST );
Delay_ms ( 2000 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on MikroE Github account.
Other MikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.MultiStepperTB62269
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.
MIKROSDK
The Multi Stepper TC62269 Click Board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
Multi-Stepper TB62269 Click-Platine
Frequently Asked Questions
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