i2cisolator5  2.1.0.0
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I2C Isolator 5 click

I2C Isolator 5 Click is a compact add-on board that offers completely isolated bidirectional communication. This board features ISO1644, a hot-swappable bidirectional I2C isolator with enhanced EMC and GPIOs from Texas Instruments. The ISO1644 provides two bidirectional channels, supporting a completely isolated I2C interface that eliminates the need for splitting I2C signals into separate transmit and receive signals for use with standalone optocouplers.

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Click library

  • Author : Stefan Ilic
  • Date : Apr 2023.
  • Type : I2C type

Software Support

We provide a library for the I2C Isolator 5 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 I2C Isolator 5 Click driver.

Standard key functions :

Example key functions :

Example Description

This library contains API for the I2C Isolator 5 click driver.

This demo application shows an example of an I2C Isolator 5 click wired to the VAV Press click for reading differential pressure and temperature measurement.

The demo application is composed of two sections :

Application Init

Initialization of I2C module and log UART.

After driver initialization and default settings, the app set VAV Press click I2C slave address ( 0x5C ) and enable device.

void application_init ( void )
{
log_cfg_t log_cfg;
i2cisolator5_cfg_t i2cisolator5_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
i2cisolator5_cfg_setup( &i2cisolator5_cfg );
I2CISOLATOR5_MAP_MIKROBUS( i2cisolator5_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == i2cisolator5_init( &i2cisolator5, &i2cisolator5_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_printf( &logger, " Set VAV Press Click I2C Slave Address \r\n" );
Delay_ms( 100 );
log_info( &logger, " Application Task " );
}

Application Task

This is an example that shows the use of an I2C Isolator 5 click boardâ„¢.

Logs pressure difference [ Pa ] and temperature [ degree Celsius ] values of the VAV Press click written to the I2C Isolator 5 click boardâ„¢.
Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
{
log_printf( &logger, " Diff. Pressure : %.4f Pa \r\n", diff_press );
log_printf( &logger, " Temperature : %.2f C \r\n", temperature );
log_printf( &logger, "--------------------------------\r\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.I2CIsolator5

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.


i2cisolator5_init
err_t i2cisolator5_init(i2cisolator5_t *ctx, i2cisolator5_cfg_t *cfg)
I2C Isolator 5 initialization function.
i2cisolator5_get_ina_state
uint8_t i2cisolator5_get_ina_state(i2cisolator5_t *ctx)
I2C Isolator 5 get input A state function.
application_task
void application_task(void)
Definition: main.c:89
i2cisolator5_t
I2C Isolator 5 Click context object.
Definition: i2cisolator5.h:110
i2cisolator5_cfg_setup
void i2cisolator5_cfg_setup(i2cisolator5_cfg_t *cfg)
I2C Isolator 5 configuration object setup function.
I2CISOLATOR5_MAP_MIKROBUS
#define I2CISOLATOR5_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: i2cisolator5.h:95
i2cisolator5_set_slave_address
err_t i2cisolator5_set_slave_address(i2cisolator5_t *ctx, uint8_t address)
I2C Isolator 5 set I2C Slave address function.
i2cisolator5_cfg_t
I2C Isolator 5 Click configuration object.
Definition: i2cisolator5.h:131
application_init
void application_init(void)
Definition: main.c:55
i2cisolator5_set_outa_state
void i2cisolator5_set_outa_state(i2cisolator5_t *ctx, uint8_t outa_state)
I2C Isolator 5 set output A state function.
i2cisolator5_get_press_and_temp
err_t i2cisolator5_get_press_and_temp(void)
I2C Isolator 5 get pressure difference and temperature function.
Definition: main.c:113
I2CISOLATOR5_VAV_PRESS_DEV_ADDR
#define I2CISOLATOR5_VAV_PRESS_DEV_ADDR
Definition: main.c:33
I2CISOLATOR5_OK
@ I2CISOLATOR5_OK
Definition: i2cisolator5.h:150