dacifb_example2.c File Reference

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

Functions
static void	init_gclk (void)
static void	init_pevc (void)
int	main (void)
	main function : do init and loop to display ADC values 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_OPTIONS

static void init_gclk ( void  )

static

References scif_gc_enable(), scif_gc_setup(), and SCIF_GCCTRL_SLOWCLOCK.

Referenced by main().

static void init_pevc ( void  )

static

References AVR32_PEVC_ID_GEN_GCLK_0, AVR32_PEVC_ID_USER_DACIFB1_CHB, FAIL, pevc_evs_opt_t::igfdr, pevc_channel_configure(), pevc_channels_enable(), PEVC_EVS_EVF_OFF, PEVC_EVS_EVR_ON, and PEVC_EVS_IGF_OFF.

Referenced by main().

int main

(

void

)

main function : do init and loop to display ADC values

References dac_channel_audio, dacifb_configure(), dacifb_configure_channel(), dacifb_get_calibration_data(), dacifb_start_channel(), EXAMPLE_DAC_AUDIO_FUNCTION, EXAMPLE_DAC_AUDIO_INSTANCE, EXAMPLE_DAC_AUDIO_PIN, EXAMPLE_DAC_PRESCALER_CLOCK, EXAMPLE_PDCA_CHANNEL_DAC, FOSC0, gpio_enable_module(), init_dbg_rs232(), init_gclk(), init_pevc(), 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(), and INTC_register_interrupt().

Referenced by main().

uint8_t dac_channel_audio = EXAMPLE_DAC_AUDIO_CHANNEL

Referenced by main().

int16_t dac_value_audio = -1

dacifb_channel_opt_t dacifb_channel_opt

Initial value:

= {
    .auto_refresh_mode    = false,
    .trigger_mode         = DACIFB_TRIGGER_MODE_EVENT,
    .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_OPTIONS

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
}