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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.3
mikroSDK Library: 2.0.0.0
Category: Stepper
Downloaded: 37 times
Not followed.
License: MIT license
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.
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5674_stepper_14_click.zip [310.22KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for AVR mikroC AI for dsPIC XC16 |
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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.
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.
This library contains API for Stepper 14 Click driver.
stepper14_cfg_setup
Config Object Initialization function.
void stepper14_cfg_setup ( stepper14_cfg_t *cfg );
stepper14_init
Initialization function.
err_t stepper14_init ( stepper14_t *ctx, stepper14_cfg_t *cfg );
stepper14_default_cfg
Click Default Configuration function.
err_t stepper14_default_cfg ( stepper14_t *ctx );
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 );
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 :
Initializes the driver and performs the Click default configuration.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
stepper14_cfg_t stepper14_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.
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 " );
}
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" );
stepper14_set_direction ( &stepper14, STEPPER14_DIR_CW );
stepper14_set_step_mode ( &stepper14, STEPPER14_MODE_FULL_STEP );
stepper14_drive_motor ( &stepper14, 200, STEPPER14_SPEED_MEDIUM );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
log_printf ( &logger, " Move 400 half steps counter-clockwise, speed: fast\r\n\n" );
stepper14_set_direction ( &stepper14, STEPPER14_DIR_CCW );
stepper14_set_step_mode ( &stepper14, STEPPER14_MODE_HALF_STEP );
stepper14_drive_motor ( &stepper14, 400, STEPPER14_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:
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.