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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.15
mikroSDK Library: 2.0.0.0
Category: Clock generator
Downloaded: 248 times
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License: MIT license
Waveform 2 Click is a compact add-on board that contains a direct digital synthesis device for waveform generator applications. This board features the AD9834, a 75 MHz low power DDS device capable of producing high-performance sine/triangle/square outputs from Analog Devices. It provides the capability for phase and frequency modulation and has an on-board comparator that allows the production of a square wave signal for clock generation.
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Waveform 2 Click is a compact add-on board that contains a direct digital synthesis device for waveform generator applications. This board features the AD9834, a 75 MHz low power DDS device capable of producing high-performance sine/triangle/square outputs from Analog Devices. It provides the capability for phase and frequency modulation and has an on-board comparator that allows the production of a square wave signal for clock generation.
We provide a library for the Waveform2 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 Waveform2 Click driver.
waveform2_cfg_setup
Config Object Initialization function.
void waveform2_cfg_setup ( waveform2_cfg_t *cfg );
waveform2_init
Initialization function.
err_t waveform2_init ( waveform2_t *ctx, waveform2_cfg_t *cfg );
waveform2_default_cfg
Click Default Configuration function.
err_t waveform2_default_cfg ( waveform2_t *ctx );
waveform2_eeprom_read_string
Waveform 2 read string function.
void waveform2_eeprom_read_string ( waveform2_t *ctx, uint16_t addr, uint8_t *data_buf, uint16_t len );
waveform2_eeprom_write_string
Waveform 2 write string function.
void waveform2_eeprom_write_string ( waveform2_t *ctx, uint16_t addr, uint8_t *data_buf, uint16_t len );
waveform2_sine_output
Waveform 2 set sine output function.
void waveform2_sine_output ( waveform2_t *ctx );
This is an example that demonstrates the use of the Waveform 2 Click board.
The demo application is composed of two sections :
Initialize the communication interface, preforming hardware reset, and configure the Click board.
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
waveform2_cfg_t waveform2_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.
waveform2_cfg_setup( &waveform2_cfg );
WAVEFORM2_MAP_MIKROBUS( waveform2_cfg, MIKROBUS_1 );
err_t init_flag = waveform2_init( &waveform2, &waveform2_cfg );
if ( ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
waveform2_default_cfg ( &waveform2 );
log_printf( &logger, "---- EEPROM test ----\r\n " );
log_printf( &logger, ">> Write [MikroE] to address 0x0123\r\n " );
waveform2_eeprom_write_string( &waveform2, 0x0123, demo_tx_buf, 6 );
waveform2_eeprom_read_string ( &waveform2, 0x0123, demo_rx_buf, 6 );
log_printf( &logger, ">> Read data: %s from address 0x0123.... \r\n ", demo_rx_buf );
Delay_ms ( 1000 );
waveform2_hw_reset( &waveform2 );
Delay_ms ( 1000 );
log_printf( &logger, "---- Waveform set freqency ----\r\n" );
int32_t freqency;
freqency = aprox_freq_calculation( value );
waveform2_set_freq( &waveform2, freqency );
waveform2_triangle_output( &waveform2 );
Delay_ms ( 1000 );
log_info( &logger, " Application Task " );
}
Predefined characters are inputed from the serial port. Depending on the character sent the signal frequency, waveform or amplitude will be changed.
void application_task ( void ) {
char rx_data;
uint32_t freq_data;
if ( log_read( &logger, &rx_data, 1 ) ) {
switch ( rx_data ) {
case '+': {
if ( value > 200000 ) {
value = 0;
}
value += 100000;
freq_data = aprox_freq_calculation( value );
waveform2_set_freq( &waveform2, freq_data );
log_printf( &logger, ">> Increasing the frequency \r\n " );
break;
}
case '-': {
if ( value < 200000 ) {
value = 400000;
}
value -= 100000;
freq_data = aprox_freq_calculation( value );
waveform2_set_freq( &waveform2, freq_data );
log_printf( &logger, ">> Decreasing the frequency \r\n " );
break;
}
case 't': {
waveform2_triangle_output( &waveform2 );
log_printf( &logger, ">> Triangle output \r\n " );
break;
}
case 's': {
waveform2_sine_output( &waveform2 );
log_printf( &logger, ">> Sinusoid output \r\n " );
break;
}
}
}
}
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:
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.