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mikroSDK Library

Silent Step Click

Rating:

5

Author: MIKROE

Last Updated: 2019-08-29

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Stepper

Downloaded: 2848 times

Not followed.

License: MIT license  

Silent Step Click is the complete integrated bipolar step motor driver solution, rich with many features that allow extremely smooth and silent operation of the connected motor while being able to provide up to 2.5A peak motor current and withstand up to 46V supply voltage.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Silent Step Click

Silent Step Click

Native view of the Silent Step Click board.

View full image
Silent Step Click

Silent Step Click

Front and back view of the Silent Step Click board.

View full image

Library Description

Library carries everything needed for stepper motor control including speed and acceleration setup. Library is also adjustable to working on different amount of ticks per second, also speed and acceleration can be provided in float format. Buffer used for movement calculation is defined by user so this library can be adjusted for MCUs with very limited RAM resources. Library also performs a motor control by using SPI driver. Check documentation for more details how to use it.

Key functions:

  • uint8_t stepper11_setSpeed( float minSpeed, float maxSpeed, float accelRatio, T_STEPPER11_OBJ obj ) - Setup motor speed.
  • uint8_t stepper11_setRoute( const uint8_t direction, uint32_t steps, T_STEPPER11_OBJ obj ) - Setup new route.
  • void stepper11_start( T_STEPPER11_OBJ obj ) - Start motor movement.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes all GPIO pins found on Silent Step click and timer to 1ms interrupt.
  • Application Initialization - First segment initializes driver and stepper control. Second segment setup movement limits, maximum and minimum speed, and acceleration ratio. Third segment performs a mode and microstep selection and setup new route which will be called from application task.
  • Application Task - (code snippet) - Sequentialy moves motor. Every part of sequence executes movement until the end, but with different speed, direction and microstep resolution.
void applicationTask()
{
    stepper11_setSpeed( 250.0, 250.0, 0.1, (T_STEPPER11_OBJ)&myStepper );
    stepper11_setRoute( _STEPPER11_DIR_CW, 200, (T_STEPPER11_OBJ)&myStepper );
    if (stealthCheck == _STEPPER11_STEALTH_DIS)
    {
        stepper11_setMicrostepResolution( _STEPPER11_SPREAD_FULL_STEP );
    }
    stepper11_start( (T_STEPPER11_OBJ)&myStepper );
    while ( myStepper.status.running )
    {
        stepper11_process( (T_STEPPER11_OBJ)&myStepper );
    }
    
    stepper11_setRoute( _STEPPER11_DIR_CCW, 200, (T_STEPPER11_OBJ)&myStepper );
    stepper11_start( (T_STEPPER11_OBJ)&myStepper );
    while ( myStepper.status.running )
    {
        stepper11_process( (T_STEPPER11_OBJ)&myStepper );
    }
    Delay_ms( 200 );
    
    stepper11_setSpeed( 10.0, 500.0, 0.1, (T_STEPPER11_OBJ)&myStepper );
    stepper11_setRoute( _STEPPER11_DIR_CW, 200, (T_STEPPER11_OBJ)&myStepper );
    if (stealthCheck == _STEPPER11_STEALTH_DIS)
    {
        stepper11_setMicrostepResolution( _STEPPER11_SPREAD_HALF_STEP );
    }
    stepper11_start( (T_STEPPER11_OBJ)&myStepper );
    while ( myStepper.status.running )
    {
        stepper11_process( (T_STEPPER11_OBJ)&myStepper );
    }
    Delay_ms( 2000 );
}


In addition to library function calls example carries necessay Timer ISR and Timer initialization. Check Timer initialization setings and update it according to your MCU - Timer Calculator.

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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