dacifb_example1.c File Reference

#include <asf.h>
#include "conf_example.h"
#include "sinus.h"

Functions
int	main (void)
	Main function to configure the DAC and DMA, and begin conversions. More...
static void	pdca_set_irq (void)
	PDCA interrupt handler, fired each time the complete sine wave table has been sent to the DAC. More...

Variables
uint8_t	dac_channel_audio = EXAMPLE_DAC_AUDIO_CHANNEL
int16_t	dac_value_audio = -1
dacifb_channel_opt_t	dacifb_channel_opt
dacifb_opt_t	dacifb_opt
pdca_channel_options_t	pdca_opt

int main

(

void

)

Main function to configure the DAC and DMA, and begin conversions.

References dac_channel_audio, dacifb_configure(), dacifb_configure_channel(), dacifb_get_calibration_data(), dacifb_reload_timer(), dacifb_start_channel(), gpio_enable_module(), pdca_enable(), pdca_enable_interrupt_reload_counter_zero(), pdca_init_channel(), pdca_set_irq(), and sysclk_init().

static void pdca_set_irq ( void  )

static

PDCA interrupt handler, fired each time the complete sine wave table has been sent to the DAC.

Initialize interrupt controller and register PDCA interrupt handler.

References Disable_global_interrupt, Enable_global_interrupt, INTC_init_interrupts(), INTC_register_interrupt(), and pdca_int_handler().

Referenced by main().

uint8_t dac_channel_audio = EXAMPLE_DAC_AUDIO_CHANNEL

int16_t dac_value_audio = -1

dacifb_channel_opt_t dacifb_channel_opt

Initial value:

= {
    .auto_refresh_mode    = false,
    .trigger_mode         = DACIFB_TRIGGER_MODE_TIMER,
    .left_adjustment      = false,
    .data_shift           = 0,
    .data_round_enable    = false
}

dacifb_opt_t dacifb_opt

Initial value:

= {
    .reference            = DACIFB_REFERENCE_VDDANA,
    .channel_selection    = DACIFB_CHANNEL_SELECTION_B,
    .low_power            = false,
    .dual                 = false,
    .prescaler_clock_hz   = EXAMPLE_DAC_PRESCALER_CLOCK
}

pdca_channel_options_t pdca_opt

Initial value:

= {
    .addr                 = (void *)sin_table, 
    .pid                  = AVR32_PDCA_PID_DAC_TX,
    .size                 = SINUS_SAMPLES,
    .r_addr               = NULL,
    .r_size               = 0,
    .transfer_size        = PDCA_TRANSFER_SIZE_HALF_WORD
}