µracoli Manual Version foo

- µracoli
- User Guide
- Reference Guide

xmpl_radio_range.c

This application sends periodically a test frame and is the rest of the time in receive mode. All parameters of the received frames (ED, LQI, sequence number) are printed to the host interface.

The LEDs have the following meaning:

- LED0 flashes and signalizes the transmission of a frame.
- LED1 toggles with each received frame.

/* Copyright (c) 2008 Axel Wachtler
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the authors nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE. */
/* $Id$ */
/* Example use of the radio and ioutil functions for a simple range test */
#include <stdio.h>
#include "board.h"
#include "hif.h"
#include "radio.h"
#include "xmpl.h"
/* === Macros ========================================================== */
#define T_TX_PERIOD MSEC(500)
#define RT_ADDR (0x1234)
#define RT_PANID (0xcafe)
#define GET_CFG_ADDR() (0xfffc)
#define ABSDIFF(a,b) ( (a>b) ? a - b : b - a )
#define FRAME_CTRL (0x8841)
/* === Types =========================================================== */
time_t tmr_transmit(timer_arg_t t);
typedef struct
{
uint16_t fctl;
uint8_t seq;
uint16_t pan;
uint16_t dst;
uint16_t src;
/* frame payload */
uint8_t keycnt;
uint8_t data[8];
uint16_t crc;
} rt_frame_t;
/* === Globals ========================================================= */
rt_frame_t TxFrame = {
.fctl = FRAME_CTRL,
.pan = RT_PANID,
.dst = RT_ADDR,
.src = 0xffff
};
uint8_t RxFrame[MAX_FRAME_SIZE];
volatile bool do_init = true;
volatile uint8_t keycnt = 0;
/* === Implementation ================================================== */
void app_init(void)
{
mcu_init();
LED_INIT();
KEY_INIT();
hif_init(HIF_DEFAULT_BAUDRATE);
timer_init();
radio_init(RxFrame, sizeof(RxFrame));
radio_set_state(STATE_OFF);
radio_set_param(RP_CHANNEL(CHANNEL));
radio_set_param(RP_IDLESTATE(STATE_RXAUTO));
radio_set_param(RP_SHORTADDR(RT_ADDR));
radio_set_param(RP_PANID(RT_PANID));
#if RADIO_TYPE == RADIO_AT86RF212
radio_set_param(RP_DATARATE(OQPSK100));
#endif
}
int main(void)
{
node_config_t nc = {.short_addr = 0, .pan_id = 0};
/* setup hardware */
app_init();
/* copy flash settings */
get_node_config(&nc);
TxFrame.src = nc.short_addr;
MCU_IRQ_ENABLE();
PRINTF("Simple Range Test\n\r This is node: 0x%04x TX-FRAME: %d\n\r",
nc.short_addr, sizeof(TxFrame));
PRINTF("PWR: 0x%x CHAN: %d\r\n",
trx_reg_read(RG_PHY_TX_PWR), trx_bit_read(SR_CHANNEL));
do_init = true;
timer_start(tmr_transmit,T_TX_PERIOD,0);
while(1)
{
DELAY_MS(10);
if( keys_debounced() )
{
LED_TOGGLE(0);
keycnt ++;
}
}
}
time_t tmr_transmit(timer_arg_t t)
{
radio_set_state(STATE_TXAUTO);
TxFrame.keycnt = keycnt;
radio_send_frame(sizeof(TxFrame) , (uint8_t *)&TxFrame, 0);
LED_TOGGLE(0);
return 0;
}
uint8_t * usr_radio_receive_frame(uint8_t len, uint8_t *frm, uint8_t lqi, int8_t ed, uint8_t crc)
{
rt_frame_t *pfrm;
static struct rxstatus_tag
{
uint8_t seq;
uint16_t lostpckts;
uint16_t rxdpckts;
uint16_t src;
uint8_t keycnt;
uint8_t lqi;
int8_t ed;
} rxstatus;
bool doprint;
LED_TOGGLE(1);
pfrm = (rt_frame_t *) frm;
doprint = false;
/* verify if one of the variables has changed. */
if (do_init == true)
{
do_init = false;
rxstatus.seq = pfrm->seq;
rxstatus.rxdpckts = 0;
rxstatus.lostpckts = 0;
}
rxstatus.rxdpckts ++;
if(pfrm->seq != rxstatus.seq)
{
/* improve lost packet counting with timestamp */
rxstatus.lostpckts += ABSDIFF(pfrm->seq, rxstatus.seq);
doprint = true;
}
if(pfrm->src != rxstatus.src)
{
rxstatus.src = pfrm->src;
doprint = true;
}
if(pfrm->keycnt != rxstatus.keycnt)
{
rxstatus.keycnt = pfrm->keycnt;
doprint = true;
}
if(lqi != rxstatus.lqi)
{
rxstatus.lqi = lqi;
doprint = true;
}
if(ed != rxstatus.ed)
{
rxstatus.ed = ed;
doprint = true;
}
if (doprint == true)
{
PRINTF(":sta 0x%04x seq %d key %d lqi %d ed %d rxd %d lost %d \n\r",
pfrm->src, pfrm->seq, pfrm->keycnt, lqi, ed,
rxstatus.rxdpckts, rxstatus.lostpckts );
rxstatus.rxdpckts = 0;
rxstatus.lostpckts = 0;
}
rxstatus.seq = pfrm->seq + 1;
return frm;
}
void usr_radio_tx_done(radio_tx_done_t status)
{
LED_TOGGLE(0);
if (status == TX_OK)
{
TxFrame.seq++;
}
timer_start(tmr_transmit, T_TX_PERIOD, 0);
}
/* XEOF */