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mikroSDK Library

STSPIN820 Click

Rating:

5

Author: MIKROE

Last Updated: 2019-05-09

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Stepper

Downloaded: 3853 times

Not followed.

License: MIT license  

STSPIN820 click is a stepper motor driver with the PWM current control, selectable microstepping up to 256 microsteps, and a wide voltage range.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

STSPIN820 click

STSPIN820 click

Native view of the STSPIN820 click board.

View full image
STSPIN820 click

STSPIN820 click

Front and back view of the STSPIN820 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. Check documentation for more details how to use it.

Key functions:

  • uint8_t stspin820_setSpeed( float minSpeed, float maxSpeed, float accelRatio, T_STSPIN820_OBJ obj ) - Setup motor speed.
  • uint8_t stspin820_setRoute( const uint8_t direction, uint32_t steps, T_STSPIN820_OBJ obj ) - Setup new route.
  • void stspin820_start( T_STSPIN820_OBJ obj ) - Start motor movement.

Examples description

The application is composed of the three sections :

  • System Initialization - Initializes all GPIO pins found on STSPIN820 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 enables motor and setup new route which will be called from application task.
  • Application Task - (code snippet) - Sequentialy moves motor. First part of sequence executes movement until the end. Second part stop motor movement after one second and continues sequence after two seconds.
void applicationTask()
{
    stspin820_start( (T_STSPIN820_OBJ)&myStepper );
    while ( myStepper.status.running )
	{
	    stspin820_process( (T_STSPIN820_OBJ)&myStepper );
	}
    Delay_ms( 2000 );
    
    stspin820_start( (T_STSPIN820_OBJ)&myStepper );
    Delay_ms( 1000 );
    stspin820_stop( (T_STSPIN820_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.

Other mikroE Libraries used in the example:

  • ADC
  • UART
  • Conversions

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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