spiisolator8  2.1.0.0
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SPI Isolator 8 click

SPI Isolator 8 Click is a compact add-on board representing a digital isolator optimized for a serial peripheral interface. This board features the ISOW7743, a quad-channel digital isolator from Texas Instruments. This device has a maximum data rate of 100Mbps and transfers digital signals between circuits with different power domains featuring reinforced isolation for a withstand voltage rating of 5kVRMS for 60 seconds.

click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Aug 2023.
  • Type : SPI type

Software Support

We provide a library for the SPI Isolator 8 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 SPI Isolator 8 Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of SPI Isolator 8 Click boardâ„¢ by reading the manufacturer ID and device ID of the connected Flash 11 Click boardâ„¢.

The demo application is composed of two sections :

Application Init

The initialization of SPI module, log UART, and additional pins. After the driver init, the application enabled both isolated sides of the device.

void application_init ( void )
{
log_cfg_t log_cfg;
spiisolator8_cfg_t spiisolator8_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
spiisolator8_cfg_setup( &spiisolator8_cfg );
SPIISOLATOR8_MAP_MIKROBUS( spiisolator8_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == spiisolator8_init( &spiisolator8, &spiisolator8_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
spiisolator8_default_cfg ( &spiisolator8 );
Delay_ms( 100 );
log_info( &logger, " Application Task " );
log_printf( &logger, " -----------------------\r\n" );
Delay_ms( 100 );
}

Application Task

The demo application reads and checks the manufacturer ID and device ID of the connected Flash 11 Click boardâ„¢. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
static uint8_t cmd_get_id[ 6 ] = { FLASH11_CMD_GET_ID };
static uint8_t read_id[ 6 ] = { 0 };
if ( SPIISOLATOR8_OK == spiisolator8_transfer( &spiisolator8, &cmd_get_id[ 0 ], &read_id[ 0 ], 6 ) )
{
if ( ( FLASH11_MANUFACTURER_ID == read_id[ 4 ] ) && ( FLASH11_DEVICE_ID == read_id[ 5 ] ) )
{
log_printf( &logger, " Manufacturer ID: 0x%.2X\r\n", ( uint16_t ) read_id[ 4 ] );
log_printf( &logger, " Device ID: 0x%.2X \r\n", ( uint16_t ) read_id[ 5 ] );
log_printf( &logger, " -----------------------\r\n" );
Delay_ms( 3000 );
}
}
}

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.SPIIsolator8

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.


spiisolator8_default_cfg
void spiisolator8_default_cfg(spiisolator8_t *ctx)
SPI Isolator 8 default configuration function.
spiisolator8_init
err_t spiisolator8_init(spiisolator8_t *ctx, spiisolator8_cfg_t *cfg)
SPI Isolator 8 initialization function.
spiisolator8_cfg_t
SPI Isolator 8 Click configuration object.
Definition: spiisolator8.h:115
FLASH11_CMD_GET_ID
#define FLASH11_CMD_GET_ID
Definition: main.c:32
spiisolator8_transfer
err_t spiisolator8_transfer(spiisolator8_t *ctx, uint8_t *data_in, uint8_t *data_out, uint8_t len)
SPI Isolator 8 data transfer function.
spiisolator8_t
SPI Isolator 8 Click context object.
Definition: spiisolator8.h:95
spiisolator8_enp_enable
void spiisolator8_enp_enable(spiisolator8_t *ctx)
SPI Isolator 8 enable side 2 function.
application_task
void application_task(void)
Definition: main.c:71
SPIISOLATOR8_MAP_MIKROBUS
#define SPIISOLATOR8_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: spiisolator8.h:78
spiisolator8_enc_enable
void spiisolator8_enc_enable(spiisolator8_t *ctx)
SPI Isolator 8 enable side 1 function.
spiisolator8_cfg_setup
void spiisolator8_cfg_setup(spiisolator8_cfg_t *cfg)
SPI Isolator 8 configuration object setup function.
SPIISOLATOR8_OK
@ SPIISOLATOR8_OK
Definition: spiisolator8.h:140
FLASH11_DEVICE_ID
#define FLASH11_DEVICE_ID
Definition: main.c:34
application_init
void application_init(void)
Definition: main.c:36
FLASH11_MANUFACTURER_ID
#define FLASH11_MANUFACTURER_ID
Definition: main.c:33