digiio  2.1.0.0
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DIGI IO Click

DIGI I/O Click is a compact add-on board for flexible industrial digital input and output control. This board features the MAX14906, a quad-channel industrial digital input/output IC from Analog Devices, compliant with IEC 61131-2 standard. Each channel can be individually configured as a high-side switch, push-pull driver, or digital input, supporting various operating modes with current limiting up to 1.2A and fast signal transmission. The board supports 24V operation by default, with options for individual channel power configuration, and includes built-in diagnostics like overvoltage and undervoltage detection, thermal overload, and wire-break detection. DIGI I/O Click is ideal for industrial automation, motor control systems, PLCs, and Distributed Control Systems (DCS).

Click Product page


Click library

  • Author : Stefan Filipovic
  • Date : May 2024.
  • Type : SPI type

Software Support

We provide a library for the DIGI IO 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 DIGI IO Click driver.

Standard key functions :

Example key functions :

  • digiio_write_reg This function writes data to the selected register by using SPI serial interface.
    err_t digiio_write_reg ( digiio_t *ctx, uint8_t reg, uint8_t data_in );
  • digiio_read_reg This function reads data from the selected register by using SPI serial interface.
    err_t digiio_read_reg ( digiio_t *ctx, uint8_t reg, uint8_t *data_out );
  • digiio_sync_io This function synchronizes registers by toggling the SYNC pin logic state.
    void digiio_sync_io ( digiio_t *ctx );

Example Description

This example demonstrates the use of DIGI IO Click board by setting and reading the DOI channels state.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration which sets the DOI1 and DOI2 as output and the DOI3 and DOI4 as inputs.

void application_init ( void )
{
log_cfg_t log_cfg;
digiio_cfg_t digiio_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
digiio_cfg_setup( &digiio_cfg );
DIGIIO_MAP_MIKROBUS( digiio_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == digiio_init( &digiio, &digiio_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( DIGIIO_ERROR == digiio_default_cfg ( &digiio ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Toggles the DOI1 and DOI2 pins state and then reads the status of all four DOI pins and displays the results on the USB UART approximately once per second.

void application_task ( void )
{
uint8_t set_out = 0;
uint8_t doi_level = 0;
digiio_sync_io ( &digiio );
if ( DIGIIO_OK == digiio_read_reg ( &digiio, DIGIIO_REG_SET_OUT, &set_out ) )
{
if ( DIGIIO_OK == digiio_write_reg ( &digiio, DIGIIO_REG_SET_OUT, set_out ) )
{
digiio_sync_io ( &digiio );
}
}
if ( DIGIIO_OK == digiio_read_reg ( &digiio, DIGIIO_REG_DOI_LEVEL, &doi_level ) )
{
if ( doi_level & DIGIIO_DOI_LEVEL_DOI1 )
{
log_printf ( &logger, " DOI1: HIGH\r\n" );
}
else
{
log_printf ( &logger, " DOI1: LOW\r\n" );
}
if ( doi_level & DIGIIO_DOI_LEVEL_DOI2 )
{
log_printf ( &logger, " DOI2: HIGH\r\n" );
}
else
{
log_printf ( &logger, " DOI2: LOW\r\n" );
}
if ( doi_level & DIGIIO_DOI_LEVEL_DOI3 )
{
log_printf ( &logger, " DOI3: HIGH\r\n" );
}
else
{
log_printf ( &logger, " DOI3: LOW\r\n" );
}
if ( doi_level & DIGIIO_DOI_LEVEL_DOI4 )
{
log_printf ( &logger, " DOI4: HIGH\r\n" );
}
else
{
log_printf ( &logger, " DOI4: LOW\r\n" );
}
log_printf ( &logger, "\r\n" );
}
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.DIGIIO

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.


DIGIIO_ERROR
@ DIGIIO_ERROR
Definition: digiio.h:551
digiio_cfg_t
DIGI IO Click configuration object.
Definition: digiio.h:524
DIGIIO_DOI_LEVEL_DOI4
#define DIGIIO_DOI_LEVEL_DOI4
Definition: digiio.h:169
DIGIIO_DOI_LEVEL_DOI2
#define DIGIIO_DOI_LEVEL_DOI2
Definition: digiio.h:171
DIGIIO_SET_OUT_HIGH_O1_MASK
#define DIGIIO_SET_OUT_HIGH_O1_MASK
Definition: digiio.h:130
application_task
void application_task(void)
Definition: main.c:66
DIGIIO_OK
@ DIGIIO_OK
Definition: digiio.h:550
digiio_init
err_t digiio_init(digiio_t *ctx, digiio_cfg_t *cfg)
DIGI IO initialization function.
digiio_write_reg
err_t digiio_write_reg(digiio_t *ctx, uint8_t reg, uint8_t data_in)
DIGI IO write reg function.
digiio_t
DIGI IO Click context object.
Definition: digiio.h:500
DIGIIO_REG_SET_OUT
#define DIGIIO_REG_SET_OUT
DIGI IO register list.
Definition: digiio.h:74
DIGIIO_DOI_LEVEL_DOI1
#define DIGIIO_DOI_LEVEL_DOI1
Definition: digiio.h:172
DIGIIO_REG_DOI_LEVEL
#define DIGIIO_REG_DOI_LEVEL
Definition: digiio.h:76
digiio_cfg_setup
void digiio_cfg_setup(digiio_cfg_t *cfg)
DIGI IO configuration object setup function.
DIGIIO_DOI_LEVEL_DOI3
#define DIGIIO_DOI_LEVEL_DOI3
Definition: digiio.h:170
application_init
void application_init(void)
Definition: main.c:30
DIGIIO_SET_OUT_HIGH_O2_MASK
#define DIGIIO_SET_OUT_HIGH_O2_MASK
Definition: digiio.h:127
DIGIIO_MAP_MIKROBUS
#define DIGIIO_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: digiio.h:482
digiio_read_reg
err_t digiio_read_reg(digiio_t *ctx, uint8_t reg, uint8_t *data_out)
DIGI IO read reg function.
digiio_default_cfg
err_t digiio_default_cfg(digiio_t *ctx)
DIGI IO default configuration function.
digiio_sync_io
void digiio_sync_io(digiio_t *ctx)
DIGI IO sync io function.