tal_rx.c File Reference

This file implements the frame reception functions.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include "pal.h"
#include "return_val.h"
#include "tal.h"
#include "ieee_const.h"
#include "stack_config.h"
#include "bmm.h"
#include "qmm.h"
#include "tal_constants.h"
#include "tal_pib.h"
#include "tal_irq_handler.h"
#include "at86rf212b.h"
#include "tal_rx.h"
#include "tal_internal.h"
#include "tal_slotted_csma.h"

Macros
#define	ED_LEVEL_MAX_REG_VALUE   (84)
#define	ED_LEVEL_MULTIPLIER   (255.0 / ED_LEVEL_MAX_REG_VALUE)
#define	ED_MAX
#define	ED_THRESHOLD   (60)
#define	LQI_MAX   (3)
#define	US_PER_OCTECT   (32)

Functions
void	handle_received_frame_irq (void)
	Handle received frame interrupt. More...
static uint8_t	normalize_lqi (uint8_t lqi, uint8_t ed_value)
	Normalize LQI. More...
void	process_incoming_frame (buffer_t *buf_ptr)
	Parses received frame and create the frame_info_t structure. More...

#define ED_LEVEL_MAX_REG_VALUE   (84)

#define ED_LEVEL_MULTIPLIER   (255.0 / ED_LEVEL_MAX_REG_VALUE)

#define ED_MAX

Value:

(-RSSI_BASE_VAL_BPSK_300_DBM - \
	ED_THRESHOLD)

Referenced by normalize_lqi().

#define ED_THRESHOLD   (60)

#define LQI_MAX   (3)

Referenced by normalize_lqi().

#define US_PER_OCTECT   (32)

static uint8_t normalize_lqi ( uint8_t  lqi, uint8_t  ed_value  )

inlinestatic

Normalize LQI.

This function normalizes the LQI value based on the ED and the originally appended LQI value.

Parameters

lqi	Measured LQI
ed_value	Read ED value

Returns

The calculated LQI value: ppduLinkQuality

References ED_MAX, LQI_MAX, and tal_pib.

Referenced by process_incoming_frame().