fhss.c File Reference

FHSS channel sequencer implementation. More...

#include "fhss.h"
#include <aes.h>

Functions
void	fhss_init (void)
	Reset the slot counter to zero.
uint8_t	fhss_next_channel (void)
	Return the next channel in the hopping sequence and advance the slot.
void	fhss_sync_tick (void)
	Advance the slot counter by one (receiver side, no packet received).
void	fhss_set_slot (uint32_t s)
	Force the slot counter to a specific value for RX synchronisation.
uint32_t	fhss_get_slot (void)
	Return the current slot counter value.

Variables
static const uint8_t	shared_key [16]
static uint32_t	slot

Detailed Description

FHSS channel sequencer implementation.

Function Documentation

fhss_get_slot()

uint32_t fhss_get_slot

(

void

)

Return the current slot counter value.

fhss_init()

void fhss_init

(

void

)

Reset the slot counter to zero.

fhss_next_channel()

uint8_t fhss_next_channel

(

void

)

Return the next channel in the hopping sequence and advance the slot.

Returns

Channel index in [0, 39].

fhss_set_slot()

void fhss_set_slot

(

uint32_t

s

)

Force the slot counter to a specific value for RX synchronisation.

Parameters

s	New slot value.

fhss_sync_tick()

void fhss_sync_tick

(

void

)

Advance the slot counter by one (receiver side, no packet received).

Variable Documentation

shared_key

const uint8_t shared_key[16]

static

Initial value:

= {
    0xA3, 0x4F, 0x2C, 0x8B, 0xE1, 0x76, 0x0D, 0x95, 0x4A, 0xB8, 0x3E, 0x72, 0x1F, 0xC9, 0x56, 0x0A,
}

slot

uint32_t slot

static