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AD-SWIO 3 Click is a compact add-on board representing a software configurable input/output solution for various purposes. This board features the AD74115H, a single-channel, software-configurable input and output with HART mode from Analog Devices. It provides many functionality for analog input, analog output, digital input, digital output, 2-wire, 3-wire, and 4-wire resistance temperature detector (RTD), and thermocouple measurement capability. The supply power and isolation part are managed by the ADP1034, a 3-channel isolated micropower management unit with seven digital isolators and programmable power control, also from Analog Devices.
- Author : Nenad Filipovic
- Date : Oct 2023.
- Type : SPI type
We provide a library for the AD-SWIO 3 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.
This library contains API for AD-SWIO 3 Click driver.
adswio3_cfg_setupConfig Object Initialization function.
void adswio3_cfg_setup ( adswio3_cfg_t *cfg );adswio3_initInitialization function.
err_t adswio3_init ( adswio3_t *ctx, adswio3_cfg_t *cfg );adswio3_default_cfgClick Default Configuration function.
err_t adswio3_default_cfg ( adswio3_t *ctx );adswio3_get_voltage_inputThis function reads the raw ADC value and converts them to a proportional voltage level measured by the voltage between the I/OP and I/ON screw terminals.
err_t adswio3_get_voltage_input ( adswio3_t *ctx, uint8_t adc_sel, float *voltage );adswio3_get_diag_resThis function is used to read the desired diagnostic conversion results.
err_t adswio3_get_diag_res ( adswio3_t *ctx, uint8_t diag_sel, uint16_t *adc_diag_data );adswio3_set_adc_cnvThis function is used to control the ADC conversions that must be performed.
err_t adswio3_set_adc_cnv ( adswio3_t *ctx, adswio3_adc_cnv_ctrl_t adc_cnv_ctrl );This library contains API for the AD-SWIO 3 Click driver for measurements of the analog output, analog input, digital input, resistance temperature detector (RTD), and thermocouple measurements.
The demo application is composed of two sections :
Initialization of SPI and log UART. After driver initialization, the app executes a default configuration that enables and sets it to measure IOP/ION voltage input from 0V to 12V, with 4.8k SPS and enabled four diagnostics measurements (AVDD, VASS, VACC and LVIN).
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
adswio3_cfg_t adswio3_cfg; /**< Click config object. */
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
adswio3_cfg_setup( &adswio3_cfg );
ADSWIO3_MAP_MIKROBUS( adswio3_cfg, MIKROBUS_1 );
if ( SPI_MASTER_ERROR == adswio3_init( &adswio3, &adswio3_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( ADSWIO3_ERROR == adswio3_default_cfg ( &adswio3 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
Delay_ms ( 100 );
for ( uint8_t n_cnt = ADSWIO3_GPIO_CONFIG_SEL_A; n_cnt <= ADSWIO3_GPIO_CONFIG_SEL_D; n_cnt ++ )
{
if ( ADSWIO3_ERROR == adswio3_set_gpio_config( &adswio3, n_cnt,
ADSWIO3_GPIO_CONFIG_GPO_DATA_HIGH,
ADSWIO3_GPIO_CONFIG_GP_WK_PD_DIS,
ADSWIO3_GPIO_CONFIG_MODE_OUT ) )
{
log_error( &logger, " Set GPIO configuration. " );
for ( ; ; );
}
Delay_ms ( 100 );
}
float diag_vtg = 0;
log_printf( &logger, "_________________________\r\n" );
log_printf( &logger, " > Diagnostic Voltages <\r\n" );
if ( ADSWIO3_OK == adswio3_get_diag_vtg( &adswio3, ADSWIO3_DIAG_RESULT_SEL_0, &diag_vtg ) )
{
log_printf( &logger, " AVDD: %.2f V\r\n", diag_vtg );
Delay_ms ( 100 );
}
if ( ADSWIO3_OK == adswio3_get_diag_vtg( &adswio3, ADSWIO3_DIAG_RESULT_SEL_1, &diag_vtg ) )
{
log_printf( &logger, " VASS: %.2f V\r\n", diag_vtg );
Delay_ms ( 100 );
}
if ( ADSWIO3_OK == adswio3_get_diag_vtg( &adswio3, ADSWIO3_DIAG_RESULT_SEL_2, &diag_vtg ) )
{
log_printf( &logger, " VACC: %.2f V\r\n", diag_vtg );
Delay_ms ( 100 );
}
if ( ADSWIO3_OK == adswio3_get_diag_vtg( &adswio3, ADSWIO3_DIAG_RESULT_SEL_3, &diag_vtg ) )
{
log_printf( &logger, " LVIN: %.2f V\r\n", diag_vtg );
Delay_ms ( 100 );
}
log_printf( &logger, "_________________________\r\n" );
Delay_ms ( 1000 );
}This example demonstrates the use of the AD-SWIO 3 Click board. The demo application reads and displays the voltage level input, measured by the voltage between the I/OP and I/ON screw terminals and NTC thermistor temperature in degrees Celsius. Results are being sent to the UART Terminal, where you can track their changes.
void application_task ( void )
{
float ntc_temp = 0, iop_ion_vtg = 0;
if ( ADSWIO3_OK == adswio3_get_ntc_temp( &adswio3, ADSWIO3_DIAG_RESULT_SEL_3, &ntc_temp ) )
{
log_printf( &logger, " NTC Temperature: %.2f degC\r\n", ntc_temp );
Delay_ms ( 100 );
}
if ( ADSWIO3_OK == adswio3_get_voltage_input( &adswio3, 0, &iop_ion_vtg ) )
{
log_printf( &logger, "IOP/ION Voltage: %.3f V\r\n", iop_ion_vtg );
Delay_ms ( 100 );
}
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.ADSWIO3
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.