crashtest-r0ket/firmware/funk/openbeacon.c

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2011-07-17 12:25:15 +00:00
#include "openbeacon.h"
#include "nrf24l01p.h"
#include "basic/byteorder.h"
const uint32_t key = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
const uint8_t enctoggle = 0;
uint32_t mid = 0;
uint32_t mctr = 0;
uint8_t strength = 0;
void openbeaconSetup(uint32_t id, uint32_t ctr)
{
mid = id;
mctr = ctr;
strength = 0;
}
void openbeaconSendPacket(uint32_t id, uint32_t ctr, uint8_t flags, uint8_t strength)
{
uint8_t buf[32];
int status;
buf[0]=0x10; // Length: 16 bytes
buf[1]=0x17; // Proto - fixed at 0x17?
buf[2]=flags;
buf[3]=strength*85; // Send intensity
uint322uint8p(ctr, buf+4);
uint322uint8p(id, buf+8);
buf[12]=0xff; // salt (0xffff always?)
buf[13]=0xff;
status=nrf_snd_pkt_crc_encr(16,buf,enctoggle?testkey:NULL);
}
void openbeaconSend(void)
{
//uint8_t tmp = nrfgetstrength();
//nrfsetstrength(strength);
openbeaconSendPacket(mid, ctr++, 0xFF, strength++);
if( strength == 4 )
strength = 0;
//maybe this produces timing problems?
//nrfsetstrength(tmp);
}