powerstep2

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Power Step 2 Click

Power Step 2 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : Stefan Filipovic
• Date : Jan 2025.
• Type : SPI type

Software Support

Example Description

This example demonstrates the use of the Power Step 2 Click board for precise control of stepper motors. The application showcases various step modes, directions, and speeds while demonstrating the board's ability to control motors using different operation modes.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.PowerStep2

Example Key Functions

• powerstep2_cfg_setup Config Object Initialization function.

  void powerstep2_cfg_setup ( powerstep2_cfg_t *cfg );

• powerstep2_init Initialization function.

  err_t powerstep2_init ( powerstep2_t *ctx, powerstep2_cfg_t *cfg );

• powerstep2_default_cfg Click Default Configuration function.

  err_t powerstep2_default_cfg ( powerstep2_t *ctx );

• powerstep2_set_step_mode This function sets the step mode (microstepping level) of the Power Step 2 device.

  err_t powerstep2_set_step_mode ( powerstep2_t *ctx, uint8_t step_mode );

• powerstep2_set_speed This function sets the minimum and maximum speeds for motor movement.

  err_t powerstep2_set_speed ( powerstep2_t *ctx, float min_speed, float max_speed );

• powerstep2_move This function moves the motor a specified number of steps in a given direction.

  err_t powerstep2_move ( powerstep2_t *ctx, uint8_t dir, uint32_t n_step );

Application Init

Initializes the logger and configures the Power Step 2 Click board. The default settings are applied to prepare the device for motor control operations.

void application_init ( void )
{
    log_cfg_t log_cfg;  
    powerstep2_cfg_t powerstep2_cfg;  

    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );
 
    // Click initialization.
    powerstep2_cfg_setup( &powerstep2_cfg );
    POWERSTEP2_MAP_MIKROBUS( powerstep2_cfg, MIKROBUS_POSITION_POWERSTEP2 );
    if ( SPI_MASTER_ERROR == powerstep2_init( &powerstep2, &powerstep2_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( POWERSTEP2_ERROR == powerstep2_default_cfg ( &powerstep2 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Demonstrates motor control with various configurations. The example alternates between multiple step modes (1/8, 1/16, 1/32, 1/4), directions (CW, CCW), speeds, and control modes (voltage, current). Each configuration is applied sequentially, with the motor driven through specified steps before switching to the next configuration.

void application_task ( void )
{
    log_printf ( &logger, " Step mode: 1/8\r\n" );
    log_printf ( &logger, " Direction: CW\r\n" );
    log_printf ( &logger, " Steps: 16000\r\n" );
    log_printf ( &logger, " Speed: [0, 500]\r\n" );
    log_printf ( &logger, " Acc-Dec: [200, 100]\r\n" );
    log_printf ( &logger, " Control mode: Command voltage\r\n\n" );
    powerstep2_clear_status ( &powerstep2 );
    powerstep2_set_control_mode ( &powerstep2, POWERSTEP2_CONTROL_MODE_VOLTAGE );
    powerstep2_set_step_mode ( &powerstep2, POWERSTEP2_STEP_MODE_1_OVER_8 );
    powerstep2_set_speed ( &powerstep2, 0, 500 );
    powerstep2_set_acc_dec ( &powerstep2, 200, 100 );
    powerstep2_move ( &powerstep2, POWERSTEP2_DIR_CW, 16000 );
    powerstep2_soft_hiz ( &powerstep2 );
    Delay_ms ( 1000 );
 
    log_printf ( &logger, " Step mode: 1/16\r\n" );
    log_printf ( &logger, " Direction: CCW\r\n" );
    log_printf ( &logger, " Steps: 32000\r\n" );
    log_printf ( &logger, " Speed: [350, 600]\r\n" );
    log_printf ( &logger, " Acc-Dec: [100, 200]\r\n" );
    log_printf ( &logger, " Control mode: Command current\r\n\n" );
    powerstep2_clear_status ( &powerstep2 );
    powerstep2_set_control_mode ( &powerstep2, POWERSTEP2_CONTROL_MODE_CURRENT );
    powerstep2_set_step_mode ( &powerstep2, POWERSTEP2_STEP_MODE_1_OVER_16 );
    powerstep2_set_speed ( &powerstep2, 350, 600 );
    powerstep2_set_acc_dec ( &powerstep2, 100, 200 );
    powerstep2_move ( &powerstep2, POWERSTEP2_DIR_CCW, 32000 );
    powerstep2_soft_hiz ( &powerstep2 );
    Delay_ms ( 1000 );
 
    log_printf ( &logger, " Step mode: 1/32\r\n" );
    log_printf ( &logger, " Direction: CW\r\n" );
    log_printf ( &logger, " Steps: 16000\r\n" );
    log_printf ( &logger, " Speed: Very fast\r\n" );
    log_printf ( &logger, " Control mode: Step-clock voltage\r\n\n" );
    powerstep2_clear_status ( &powerstep2 );
    powerstep2_set_control_mode ( &powerstep2, POWERSTEP2_CONTROL_MODE_VOLTAGE );
    powerstep2_set_step_mode ( &powerstep2, POWERSTEP2_STEP_MODE_1_OVER_32 );
    powerstep2_step_clock ( &powerstep2, POWERSTEP2_DIR_CW );
    powerstep2_drive_motor ( &powerstep2, 16000, POWERSTEP2_SPEED_VERY_FAST );
    powerstep2_soft_hiz ( &powerstep2 );
    Delay_ms ( 1000 );
 
    log_printf ( &logger, " Step mode: 1/4\r\n" );
    log_printf ( &logger, " Direction: CCW\r\n" );
    log_printf ( &logger, " Steps: 2000\r\n" );
    log_printf ( &logger, " Speed: Medium\r\n" );
    log_printf ( &logger, " Control mode: Step-clock current\r\n\n" );
    powerstep2_clear_status ( &powerstep2 );
    powerstep2_set_control_mode ( &powerstep2, POWERSTEP2_CONTROL_MODE_CURRENT );
    powerstep2_set_step_mode ( &powerstep2, POWERSTEP2_STEP_MODE_QUARTER_STEP );
    powerstep2_step_clock ( &powerstep2, POWERSTEP2_DIR_CCW );
    powerstep2_drive_motor ( &powerstep2, 2000, POWERSTEP2_SPEED_MEDIUM );
    powerstep2_soft_hiz ( &powerstep2 );
    Delay_ms ( 1000 );
}

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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