stepper14  2.1.0.0
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Stepper 14 click

The Stepper 14 Click is a Click board™ that features the DRV8847PWPR, a step motor driver, from Texas Instruments. This Click board™ provides a bipolar step motor controle, It features an H-bridge bipolar step motor driver, which supports full-, half-, quarter-, or eighth-step modes. This click board™ also carries a port expander so that the communication can be done with a minimal number of pins, through the mikroBUS™ I2C bus.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Mar 2024.
  • Type : I2C type

Software Support

We provide a library for the Stepper 14 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 Stepper 14 Click driver.

Standard key functions :

Example key functions :

  • stepper14_set_direction This function sets the motor direction to clockwise or counter-clockwise in ctx->direction.
    void stepper14_set_direction ( stepper14_t *ctx, uint8_t dir );
  • stepper14_set_step_mode This function sets the step mode resolution settings in ctx->step_mode.
    void stepper14_set_step_mode ( stepper14_t *ctx, uint8_t mode );
  • stepper14_drive_motor This function drives the motor for the specific number of steps at the selected speed.
    err_t stepper14_drive_motor ( stepper14_t *ctx, uint32_t steps, uint8_t speed );

Example Description

This example demonstrates the use of the Stepper 14 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;
stepper14_cfg_t stepper14_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
stepper14_cfg_setup( &stepper14_cfg );
STEPPER14_MAP_MIKROBUS( stepper14_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == stepper14_init( &stepper14, &stepper14_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( STEPPER14_ERROR == stepper14_default_cfg ( &stepper14 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Drives the motor clockwise for 200 full steps and then counter-clockwise for 400 half

steps with a 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: medium\r\n\n" );
Delay_ms ( 2000 );
log_printf ( &logger, " Move 400 half steps counter-clockwise, speed: fast\r\n\n" );
Delay_ms ( 2000 );
}

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.Stepper14

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.


STEPPER14_SPEED_FAST
#define STEPPER14_SPEED_FAST
Definition: stepper14.h:131
application_task
void application_task(void)
Definition: main.c:66
stepper14_t
Stepper 14 Click context object.
Definition: stepper14.h:182
STEPPER14_MODE_FULL_STEP
#define STEPPER14_MODE_FULL_STEP
Stepper 14 step resolution setting.
Definition: stepper14.h:138
stepper14_set_direction
void stepper14_set_direction(stepper14_t *ctx, uint8_t dir)
Stepper 14 set direction function.
application_init
void application_init(void)
Definition: main.c:30
STEPPER14_ERROR
@ STEPPER14_ERROR
Definition: stepper14.h:227
stepper14_default_cfg
err_t stepper14_default_cfg(stepper14_t *ctx)
Stepper 14 default configuration function.
STEPPER14_SPEED_MEDIUM
#define STEPPER14_SPEED_MEDIUM
Definition: stepper14.h:130
stepper14_drive_motor
err_t stepper14_drive_motor(stepper14_t *ctx, uint32_t steps, uint8_t speed)
Stepper 14 driver motor function.
stepper14_init
err_t stepper14_init(stepper14_t *ctx, stepper14_cfg_t *cfg)
Stepper 14 initialization function.
stepper14_cfg_t
Stepper 14 Click configuration object.
Definition: stepper14.h:207
STEPPER14_MAP_MIKROBUS
#define STEPPER14_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: stepper14.h:167
stepper14_set_step_mode
void stepper14_set_step_mode(stepper14_t *ctx, uint8_t mode)
Stepper 14 set step mode function.
stepper14_cfg_setup
void stepper14_cfg_setup(stepper14_cfg_t *cfg)
Stepper 14 configuration object setup function.
STEPPER14_DIR_CW
#define STEPPER14_DIR_CW
Stepper 14 direction setting.
Definition: stepper14.h:107
STEPPER14_MODE_HALF_STEP
#define STEPPER14_MODE_HALF_STEP
Definition: stepper14.h:139
STEPPER14_DIR_CCW
#define STEPPER14_DIR_CCW
Definition: stepper14.h:108