expand11  2.1.0.0
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Expand 11 click

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Click library

  • Author : Stefan Filipovic
  • Date : Feb 2023.
  • Type : I2C type

Software Support

We provide a library for the Expand 11 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 Expand 11 Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of Expand 11 click board by setting and reading the port state.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the click default configuration which sets the pins P0-P1 as output and P2-P3 as input.

void application_init ( void )
{
log_cfg_t log_cfg;
expand11_cfg_t expand11_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
expand11_cfg_setup( &expand11_cfg );
EXPAND11_MAP_MIKROBUS( expand11_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == expand11_init( &expand11, &expand11_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( EXPAND11_ERROR == expand11_default_cfg ( &expand11 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Toggles all output pins and then reads the status of the whole port and displays the results on the USB UART approximately once per second.

void application_task ( void )
{
static uint16_t pin_num = EXPAND11_PIN_0_MASK;
uint8_t port_value = 0;
if ( EXPAND11_OK == expand11_set_all_pins_value( &expand11, pin_num ) )
{
if ( EXPAND11_OK == expand11_read_port_value( &expand11, &port_value ) )
{
log_printf( &logger, " PORT STATUS \r\n" );
log_printf( &logger, " P0: %u\r\n", ( uint16_t ) ( port_value & EXPAND11_PIN_0_MASK ) );
log_printf( &logger, " P1: %u\r\n", ( uint16_t ) ( ( port_value & EXPAND11_PIN_1_MASK ) >> 1 ) );
log_printf( &logger, " P2: %u\r\n", ( uint16_t ) ( ( port_value & EXPAND11_PIN_2_MASK ) >> 2 ) );
log_printf( &logger, " P3: %u\r\n\n", ( uint16_t ) ( ( port_value & EXPAND11_PIN_3_MASK ) >> 3 ) );
pin_num = ( ~pin_num ) & EXPAND11_ALL_PINS_MASK;
}
}
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.Expand11

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.


expand11_cfg_setup
void expand11_cfg_setup(expand11_cfg_t *cfg)
Expand 11 configuration object setup function.
expand11_set_pin_direction
err_t expand11_set_pin_direction(expand11_t *ctx, uint8_t direction, uint8_t pin_mask)
Expand 11 set pin direction function.
EXPAND11_PIN_1_MASK
#define EXPAND11_PIN_1_MASK
Definition: expand11.h:83
EXPAND11_OK
@ EXPAND11_OK
Definition: expand11.h:186
expand11_t
Expand 11 Click context object.
Definition: expand11.h:152
EXPAND11_ERROR
@ EXPAND11_ERROR
Definition: expand11.h:187
expand11_init
err_t expand11_init(expand11_t *ctx, expand11_cfg_t *cfg)
Expand 11 initialization function.
EXPAND11_ALL_PINS_MASK
#define EXPAND11_ALL_PINS_MASK
Definition: expand11.h:86
expand11_default_cfg
err_t expand11_default_cfg(expand11_t *ctx)
Expand 11 default configuration function.
application_task
void application_task(void)
Definition: main.c:66
EXPAND11_PIN_3_MASK
#define EXPAND11_PIN_3_MASK
Definition: expand11.h:85
EXPAND11_PIN_2_MASK
#define EXPAND11_PIN_2_MASK
Definition: expand11.h:84
expand11_set_all_pins_value
err_t expand11_set_all_pins_value(expand11_t *ctx, uint8_t set_mask)
Expand 11 set all pins value function.
application_init
void application_init(void)
Definition: main.c:30
EXPAND11_MAP_MIKROBUS
#define EXPAND11_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: expand11.h:139
expand11_cfg_t
Expand 11 Click configuration object.
Definition: expand11.h:169
EXPAND11_PIN_0_MASK
#define EXPAND11_PIN_0_MASK
Definition: expand11.h:82
expand11_read_port_value
err_t expand11_read_port_value(expand11_t *ctx, uint8_t *data_out)
Expand 11 read port value function.