Silent Step 4 Click

Silent Step 4 Click is a compact add-on board representing a completely integrated step motor driver solution. This board features the TMC2240, a smart integrated stepper driver from Analog Devices. The driver is based on a 256 micro-steps built-in indexer, two fully integrated H-Bridges, and non-dissipative integrated current sensing (ICS). The two H-Bridges can drive motors of up to 36V and 3A at max.

Click Product page

Click library

• Author : Stefan Filipovic
• Date : Oct 2023.
• Type : I2C/SPI type

Software Support

We provide a library for the Silent Step 4 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Silent Step 4 Click driver.

Standard key functions :

• silentstep4_cfg_setup Config Object Initialization function.

  void silentstep4_cfg_setup ( silentstep4_cfg_t *cfg );

• silentstep4_init Initialization function.

  err_t silentstep4_init ( silentstep4_t *ctx, silentstep4_cfg_t *cfg );

• silentstep4_default_cfg Click Default Configuration function.

  err_t silentstep4_default_cfg ( silentstep4_t *ctx );

Example key functions :

• silentstep4_set_direction This function sets the motor direction by setting the DIR pin logic state.

  void silentstep4_set_direction ( silentstep4_t *ctx, uint8_t dir );

• silentstep4_set_step_res This function sets the microstep resolution bits in CHOPCONF register.

  err_t silentstep4_set_step_res ( silentstep4_t *ctx, uint8_t mres );

• silentstep4_drive_motor This function drives the motor for the specific number of steps at the selected speed.

  void silentstep4_drive_motor ( silentstep4_t *ctx, uint32_t steps, uint8_t speed );

Example Description

This example demonstrates the use of the Silent Step 4 Click board by driving the motor in both directions for a desired number of steps.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    silentstep4_cfg_t silentstep4_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    silentstep4_cfg_setup( &silentstep4_cfg );
    SILENTSTEP4_MAP_MIKROBUS( silentstep4_cfg, MIKROBUS_1 );
    err_t init_flag = silentstep4_init( &silentstep4, &silentstep4_cfg );
    if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    if ( SILENTSTEP4_ERROR == silentstep4_default_cfg ( &silentstep4 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

Drives the motor clockwise for 200 full steps and then counter-clockiwse for 200 half steps and 400 quarter steps with 2 seconds delay on driving mode change. All data is being logged on the USB UART where you can track the program flow.

void application_task ( void )
{
    log_printf ( &logger, " Move 200 full steps clockwise, speed: slow\r\n\n" );
    silentstep4_set_direction ( &silentstep4, SILENTSTEP4_DIR_CW );
    silentstep4_set_step_res ( &silentstep4, SILENTSTEP4_MRES_FULLSTEP );
    silentstep4_drive_motor ( &silentstep4, 200, SILENTSTEP4_SPEED_SLOW );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf ( &logger, " Move 200 half steps counter-clockwise, speed: medium\r\n\n" );
    silentstep4_set_direction ( &silentstep4, SILENTSTEP4_DIR_CCW );
    silentstep4_set_step_res ( &silentstep4, SILENTSTEP4_MRES_2 );
    silentstep4_drive_motor ( &silentstep4, 200, SILENTSTEP4_SPEED_MEDIUM );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf ( &logger, " Move 400 quarter steps counter-clockwise, speed: fast\r\n\n" );
    silentstep4_set_direction ( &silentstep4, SILENTSTEP4_DIR_CCW );
    silentstep4_set_step_res ( &silentstep4, SILENTSTEP4_MRES_4 );
    silentstep4_drive_motor ( &silentstep4, 400, SILENTSTEP4_SPEED_FAST );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.SilentStep4

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, 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.