audio_telemetry_hw.c File Reference

#include "audio_telemetry.h"
#include "types.h"
#include "armVIC.h"

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Macros
#define	NB_STATE   2
#define	NB_PHASE   2

Functions
static uint8_t	get_next_bit (void)
void	TIMER1_ISR (void)

Variables
uint8_t	audio_telemetry_nb_ovrn
uint8_t	tx_head
volatile uint8_t	tx_tail
uint8_t	tx_buf [TX_BUF_SIZE]
uint8_t	ck_a
uint8_t	ck_b
uint8_t	tx_byte
uint8_t	tx_bit_idx
static const uint16_t	audio_telemetry_sample [NB_STATE][NB_PHASE][SAMPLES_PER_PERIOD]
static uint8_t	audio_telemetry_sample_idx = 0
static uint8_t	audio_telemetry_phase = 0

Macro Definition Documentation

#define NB_PHASE   2

Definition at line 15 of file audio_telemetry_hw.c.

#define NB_STATE   2

Definition at line 14 of file audio_telemetry_hw.c.

Function Documentation

static uint8_t get_next_bit ( void  )

inlinestatic

Definition at line 30 of file audio_telemetry_hw.c.

References tx_bit_idx, tx_buf, tx_byte, tx_head, and tx_tail.

Referenced by TIMER1_ISR().

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void TIMER1_ISR

(

void

)

Definition at line 66 of file audio_telemetry_hw.c.

References audio_telemetry_phase, audio_telemetry_sample, audio_telemetry_sample_idx, DACR, get_next_bit(), ISR_ENTRY, ISR_EXIT, SAMPLES_PER_PERIOD, T1IR, TIR_MR0I, and VICVectAddr.

Referenced by audio_telemetry_init().

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Variable Documentation

uint8_t audio_telemetry_nb_ovrn

Definition at line 5 of file audio_telemetry_hw.c.

uint8_t audio_telemetry_phase = 0

static

Definition at line 27 of file audio_telemetry_hw.c.

Referenced by TIMER1_ISR().

const uint16_t audio_telemetry_sample[NB_STATE][NB_PHASE][SAMPLES_PER_PERIOD]

static

Initial value:

= {
  { {512, 1023, 512, 1},
    {512 , 1 , 512 , 1023}
  },
  { {512, 874, 1023, 874},
    {512 , 150 , 1 , 150}
  }
}

Definition at line 17 of file audio_telemetry_hw.c.

Referenced by TIMER1_ISR().

uint8_t audio_telemetry_sample_idx = 0

static

Definition at line 26 of file audio_telemetry_hw.c.

Referenced by TIMER1_ISR().

uint8_t ck_a

Definition at line 9 of file audio_telemetry_hw.c.

uint8_t ck_b

Definition at line 9 of file audio_telemetry_hw.c.

uint8_t tx_bit_idx

Definition at line 11 of file audio_telemetry_hw.c.

Referenced by get_next_bit().

uint8_t tx_buf[TX_BUF_SIZE]

Definition at line 8 of file audio_telemetry_hw.c.

Referenced by get_next_bit(), and spi_submit().

uint8_t tx_byte

Definition at line 10 of file audio_telemetry_hw.c.

Referenced by get_next_bit().

uint8_t tx_head

Definition at line 6 of file audio_telemetry_hw.c.

Referenced by get_next_bit().

volatile uint8_t tx_tail

Definition at line 7 of file audio_telemetry_hw.c.

Referenced by get_next_bit().