void rx_init()
{
uint8_t bbcal[6] = { 0x3f , 0x4c , 0x84 , 0x6F , 0x9c , 0x20 };
writeregs( bbcal , sizeof(bbcal) );
uint8_t rfcal[8] = { 0x3e , 0xc9 , 0x9a , 0x80 , 0x61 , 0xbb , 0xab , 0x9c };
writeregs( rfcal , sizeof(rfcal) );
uint8_t demodcal[6] = { 0x39 , 0x0b , 0xdf , 0xc4 , 0xa7 , 0x03};
writeregs( demodcal , sizeof(demodcal) );
int rxaddress[5] = { 0 , 0 , 0 , 0 , 0 };
xn_writerxaddress( rxaddress);
xn_writereg( EN_AA , 0 ); // aa disabled
xn_writereg( EN_RXADDR , 1 ); // pipe 0 only
xn_writereg( RF_SETUP , B00000001); // lna high current on ( better performance )
xn_writereg( RX_PW_P0 , 15 ); // payload size
xn_writereg( SETUP_RETR , 0 ); // no retransmissions ( redundant?)
xn_writereg( SETUP_AW , 3 ); // address size (5 bits)
xn_command( FLUSH_RX);
xn_writereg( RF_CH , 0 ); // bind on channel 0
xn_writereg( 0 , B00001111 ); // power up, crc enabled
#ifdef RADIO_CHECK
void check_radio(void);
check_radio();
#endif
}
void rx_init()
{
// always on (CH_ON) channel set 1
aux[AUXNUMBER - 2] = 1;
// always off (CH_OFF) channel set 0
aux[AUXNUMBER - 1] = 0;
#ifdef AUX1_START_ON
aux[CH_AUX1] = 1;
#endif
#ifdef RADIO_XN297L
#define XN_TO_RX B10001111
#define XN_TO_TX B10000010
#define XN_POWER B00111111
#endif
#ifdef RADIO_XN297
static uint8_t bbcal[6] = { 0x3f , 0x4c , 0x84 , 0x6F , 0x9c , 0x20 };
writeregs( bbcal , sizeof(bbcal) );
// new values
static uint8_t rfcal[8] = { 0x3e , 0xc9 , 0x9a , 0xA0 , 0x61 , 0xbb , 0xab , 0x9c };
writeregs( rfcal , sizeof(rfcal) );
static uint8_t demodcal[6] = { 0x39 , 0x0b , 0xdf , 0xc4 , 0xa7 , 0x03};
writeregs( demodcal , sizeof(demodcal) );
#define XN_TO_RX B00001111
#define XN_TO_TX B00000010
#define XN_POWER B00000111
#endif
bleinit();
delay(100);
int rxaddress[5] = { 0 , 0 , 0 , 0 , 0 };
xn_writerxaddress( rxaddress);
xn_writereg( EN_AA , 0 ); // aa disabled
xn_writereg( EN_RXADDR , 1 ); // pipe 0 only
xn_writereg( RF_SETUP , XN_POWER); // lna high current on ( better performance )
xn_writereg( RX_PW_P0 , 15 ); // payload size
xn_writereg( SETUP_RETR , 0 ); // no retransmissions ( redundant?)
xn_writereg( SETUP_AW , 3 ); // address size (5 bits)
xn_command( FLUSH_RX);
xn_writereg( RF_CH , 0 ); // bind on channel 0
// set above
// xn_writereg( 29 , 32); // feture reg , CE mode (software controlled)
#ifdef RADIO_XN297L
xn_writereg( 0x1d, B00111000 ); // 64 bit payload , software ce
spi_cson();
spi_sendbyte( 0xFD); // internal CE high command
spi_sendbyte( 0); // required for above
spi_csoff();
#endif
#ifdef RADIO_XN297
xn_writereg( 0x1d, B00011000 ); // 64 bit payload , software ce
#endif
xn_writereg( 0 , XN_TO_RX ); // power up, crc enabled, rx mode
#ifdef RADIO_CHECK
void check_radio(void);
check_radio();
#endif
}