dac15  2.1.0.0
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DAC 15 click

DAC 15 Click is a compact add-on board that provides a highly accurate digital-to-analog conversion on two channels. This board features the DAC80502, a dual 16-bit 1-LSB INL voltage-output DAC from Texas Instruments. The DAC operates at a wide power supply range and is a low-power device with as low as 1mA per channel at 5.5V. It also includes a 2.5V, 5-ppm/°C internal reference, giving a full-scale voltage buffered output ranges of 1.25V, 2.5V, and 5.5V.

click Product page


Click library

  • Author : Nenad Filipovic
  • Date : Jul 2023.
  • Type : I2C/SPI type

Software Support

We provide a library for the DAC 15 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 DAC 15 Click driver.

Standard key functions :

Example key functions :

  • dac15_set_dac_data DAC 15 set DAC data function.
    err_t dac15_set_dac_data ( dac15_t *ctx, uint8_t dac_sel, uint16_t dac_data );
  • dac15_get_dac_data DAC 15 get DAC data function.
    err_t dac15_get_dac_data ( dac15_t *ctx, uint8_t dac_sel, uint16_t *dac_data );

Example Description

This example demonstrates the use of DAC 15 Click board™ by changing the output voltage level on the VOUTA and VOUTB.

The demo application is composed of two sections :

Application Init

Initialization of I2C or SPI module and log UART. After driver initialization, the app executes a default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
dac15_cfg_t dac15_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
dac15_cfg_setup( &dac15_cfg );
DAC15_MAP_MIKROBUS( dac15_cfg, MIKROBUS_1 );
err_t init_flag = dac15_init( &dac15, &dac15_cfg );
if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( DAC15_ERROR == dac15_default_cfg ( &dac15 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
log_printf( &logger, " -------------------\r\n" );
Delay_ms ( 100 );
}

Application Task

The demo application changes the output voltage level on the VOUTA and VOUTB. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
static uint16_t dac_data = 0;
for ( uint16_t n_cnt = 0; n_cnt < 60000; n_cnt += 5000 )
{
dac_data = n_cnt;
if ( DAC15_OK == dac15_set_dac_data( &dac15, DAC15_SET_DAC_A, dac_data ) )
{
log_printf( &logger, "VOUTA: %u -> %.2f V\r\n",
dac_data,
( float ) dac_data * DAC15_VREF_3V3 / DAC15_MAX_DAC_DATA );
}
dac_data = DAC15_DAC_RES_16BIT - n_cnt;
if ( DAC15_OK == dac15_set_dac_data( &dac15, DAC15_SET_DAC_B, dac_data ) )
{
log_printf( &logger, "VOUTB: %u -> %.2f V\r\n",
dac_data,
( float ) dac_data * DAC15_VREF_3V3 / DAC15_MAX_DAC_DATA );
}
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.DAC15

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.


dac15_cfg_t
DAC 15 Click configuration object.
Definition: dac15.h:252
dac15_s
DAC 15 Click context object.
Definition: dac15.h:230
DAC15_VREF_3V3
#define DAC15_VREF_3V3
Definition: dac15.h:156
dac15_set_dac_data
err_t dac15_set_dac_data(dac15_t *ctx, uint8_t dac_sel, uint16_t dac_data)
DAC 15 set DAC data function.
DAC15_DAC_RES_16BIT
#define DAC15_DAC_RES_16BIT
DAC 15 calculation data.
Definition: dac15.h:153
DAC15_SET_DAC_A
#define DAC15_SET_DAC_A
DAC 15 DAC selection data.
Definition: dac15.h:146
dac15_default_cfg
err_t dac15_default_cfg(dac15_t *ctx)
DAC 15 default configuration function.
application_task
void application_task(void)
Definition: main.c:69
DAC15_MAX_DAC_DATA
#define DAC15_MAX_DAC_DATA
Definition: dac15.h:154
dac15_cfg_setup
void dac15_cfg_setup(dac15_cfg_t *cfg)
DAC 15 configuration object setup function.
dac15_init
err_t dac15_init(dac15_t *ctx, dac15_cfg_t *cfg)
DAC 15 initialization function.
dac15_get_dac_data
err_t dac15_get_dac_data(dac15_t *ctx, uint8_t dac_sel, uint16_t *dac_data)
DAC 15 get DAC data function.
DAC15_OK
@ DAC15_OK
Definition: dac15.h:279
application_init
void application_init(void)
Definition: main.c:30
DAC15_MAP_MIKROBUS
#define DAC15_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: dac15.h:196
DAC15_SET_DAC_B
#define DAC15_SET_DAC_B
Definition: dac15.h:147
DAC15_ERROR
@ DAC15_ERROR
Definition: dac15.h:280