stepdown9  2.1.0.0
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Step Down 9 click

Step Down 9 Click is a compact add-on board that converts higher voltages into a lower voltage level. This board features the MAX20406, an automotive fully integrated synchronous silent switcher buck converter from Analog Devices.

click Product page


Click library

  • Author : Stefan Ilic
  • Date : Aug 2023.
  • Type : SPI type

Software Support

We provide a library for the Step Down 9 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 Step Down 9 Click driver.

Standard key functions :

Example key functions :

Example Description

This library contains API for the Step Down 9 Click driver.

This driver provides the functions to set the output voltage treshold.

The demo application is composed of two sections :

Application Init

Initialization of I2C module and log UART.

After driver initialization, default settings sets output voltage to 1.6 V.

void application_init ( void )
{
log_cfg_t log_cfg;
stepdown9_cfg_t stepdown9_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
stepdown9_cfg_setup( &stepdown9_cfg );
STEPDOWN9_MAP_MIKROBUS( stepdown9_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == stepdown9_init( &stepdown9, &stepdown9_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( STEPDOWN9_ERROR == stepdown9_default_cfg ( &stepdown9 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

This example demonstrates the use of the Step Down 9 Click boardâ„¢ by changing

output voltage every 5 seconds starting from 1.6 V up to 10 V.

void application_task ( void )
{
for ( uint8_t n_cnt = STEPDOWN9_VOUT_1V6; n_cnt <= STEPDOWN9_VOUT_10V; n_cnt++ )
{
stepdown9_set_output( &stepdown9, n_cnt );
log_printf( &logger, " Selected output is:" );
print_selected_output_level ( n_cnt );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
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:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.StepDown9

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.


stepdown9_set_wiper_pos
err_t stepdown9_set_wiper_pos(stepdown9_t *ctx, uint8_t wiper_pos)
Step Down 9 set wiper position.
stepdown9_t
Step Down 9 Click context object.
Definition: stepdown9.h:178
STEPDOWN9_ERROR
@ STEPDOWN9_ERROR
Definition: stepdown9.h:222
application_task
void application_task(void)
Definition: main.c:75
stepdown9_cfg_t
Step Down 9 Click configuration object.
Definition: stepdown9.h:197
stepdown9_set_en_pin
void stepdown9_set_en_pin(stepdown9_t *ctx, uint8_t pin_state)
Step Down 9 set EN pin state function.
stepdown9_cfg_setup
void stepdown9_cfg_setup(stepdown9_cfg_t *cfg)
Step Down 9 configuration object setup function.
STEPDOWN9_MAP_MIKROBUS
#define STEPDOWN9_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: stepdown9.h:162
stepdown9_set_output
err_t stepdown9_set_output(stepdown9_t *ctx, uint8_t voltage)
Step Down 9 set output voltage.
stepdown9_default_cfg
err_t stepdown9_default_cfg(stepdown9_t *ctx)
Step Down 9 default configuration function.
application_init
void application_init(void)
Definition: main.c:39
stepdown9_init
err_t stepdown9_init(stepdown9_t *ctx, stepdown9_cfg_t *cfg)
Step Down 9 initialization function.
STEPDOWN9_VOUT_10V
#define STEPDOWN9_VOUT_10V
Step Down 9 Vout setting.
Definition: stepdown9.h:98
STEPDOWN9_VOUT_1V6
#define STEPDOWN9_VOUT_1V6
Definition: stepdown9.h:116