I2C 1-Wire 2 click
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Click library
- Author : Stefan Ilic
- Date : Dec 2023.
- Type : I2C type
Software Support
We provide a library for the I2C 1-Wire 2 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 1-Wire 2 Click driver.
Standard key functions :
i2c1wire2_cfg_setup
Config Object Initialization function.
void i2c1wire2_cfg_setup(i2c1wire2_cfg_t *cfg)
I2C 1-Wire 2 configuration object setup function.
I2C 1-Wire 2 Click configuration object.
Definition: i2c1wire2.h:210
i2c1wire2_init
Initialization function.
err_t i2c1wire2_init(i2c1wire2_t *ctx, i2c1wire2_cfg_t *cfg)
I2C 1-Wire 2 initialization function.
I2C 1-Wire 2 Click context object.
Definition: i2c1wire2.h:196
i2c1wire2_default_cfg
Click Default Configuration function.
err_t i2c1wire2_default_cfg(i2c1wire2_t *ctx)
I2C 1-Wire 2 default configuration function.
Example key functions :
i2c1wire2_master_reset
This function is used to reset device, and return all configuration registers to the default values.
err_t i2c1wire2_master_reset(i2c1wire2_t *ctx)
I2C 1-Wire 2 master reset function.
i2c1wire2_write_port_cfg
This function is used to write a 1-Wire configuration register.
err_t i2c1wire2_write_port_cfg(i2c1wire2_t *ctx, uint8_t reg, uint8_t *data_in)
I2C 1-Wire 2 write port configuration function.
i2c1wire2_search
This function is used to perform 1-Wire Search algorithm and return one device ROMID. err_t
i2c1wire2_search (
i2c1wire2_t *ctx, uint8_t *flag, uint8_t *rom_id, uint8_t *last_flag, uint8_t param_data, uint8_t command_code );
err_t i2c1wire2_search(i2c1wire2_t *ctx, uint8_t *flag, uint8_t *rom_id, uint8_t *last_flag, uint8_t param_data, uint8_t command_code)
I2C 1-Wire 2 search function.
Example Description
This example demonstrates the use of the I2C 1-Wire 2 Click board
by searching if a device is connected and reading its ROMID.
The demo application is composed of two sections :
Application Init
Initialization of I2C module, log UART and perform Click default configuration.
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
if ( I2C_MASTER_ERROR ==
i2c1wire2_init( &i2c1wire2, &i2c1wire2_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
#define I2C1WIRE2_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: i2c1wire2.h:184
@ I2C1WIRE2_ERROR
Definition: i2c1wire2.h:226
void application_init(void)
Definition: main.c:29
Application Task
Performing 1-Wire Search algorithm to find if any device is connected.
If a device is connected and detected, its ROMID will be read and displayed.
{
err_t error_flag;
uint8_t flag;
uint8_t last_flag;
uint8_t rom_id[ 8 ] = { 0 };
#define I2C1WIRE2_DEVICE_SEARCH_CODE 0xF0
{
{
log_printf( &logger, " Device found: \r\n" );
log_printf( &logger, " Device ROMID: 0x" );
for ( uint8_t n_cnt = 0; n_cnt < 8; n_cnt++ )
{
log_printf( &logger, "%.2X", ( uint16_t ) rom_id[ n_cnt ] );
}
log_printf( &logger, " \r\n" );
log_printf( &logger, " Last device flag %d \r\n", last_flag );
}
{
log_printf( &logger, " No device detected \r\n" );
}
{
log_printf( &logger, " No presence puls \r\n" );
}
}
else
{
log_printf( &logger, " ERROR \r\n" );
}
Delay_ms( 1000 );
}
#define I2C1WIRE2_SEARCH_1WIRE_RESET
I2C 1-Wire 2 search command setting.
Definition: i2c1wire2.h:146
#define I2C1WIRE2_NO_PRESENCE_PULS
Definition: i2c1wire2.h:156
#define I2C1WIRE2_RESULT_BYTE_OK
I2C 1-Wire 2 Result byte setting.
Definition: i2c1wire2.h:154
#define I2C1WIRE2_NO_DEVICE_DETECTED
Definition: i2c1wire2.h:157
#define I2C1WIRE2_SEARCH_RESET
Definition: i2c1wire2.h:148
@ I2C1WIRE2_OK
Definition: i2c1wire2.h:225
void application_task(void)
Definition: main.c:65
#define I2C1WIRE2_DEVICE_SEARCH_CODE
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.I2C1Wire2
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.