void nrf_tx_config()
// Configure radio parameters for pTX
{
uint8_t ram_NRF_ADDR[5];
// Make sure radio is in standby
CE_LOW
// SET RADIO TO TX MODE
TX_POWERUP
// Configure NRF RX ADDRESS
// LOAD eeNRF_ADDRESS from EEPROM into ramNRF_ADDR
eeprom_read_block((void *)&ram_NRF_ADDR, (const void *)&eeNRF_ADDRESS,5);
// Configure radio channel
nrf_config_register(RF_CH,eeprom_read_byte(&CH));
// Configure NRF RX ADDRESS
nrf_write_register(RX_ADDR_P0, ram_NRF_ADDR, 5);
// Configure NRF TX ADDRESS
nrf_write_register(TX_ADDR, ram_NRF_ADDR, 5);
// This reset the NRF IRQ , RX_DR, TX_DS, MAX_RT
nrf_config_register(STATUS,(1<<RX_DR)|(1<<TX_DS)|(1<<MAX_RT));
}
void nrf_rx_config()
// Configure radio parameters for pRX
{
uint8_t ram_NRF_ADDR[5];
// Make sure radio is in standby
CE_LOW
// Set radio to RX Mode
RX_POWERUP
// Configure NRF RX ADDRESS
// LOAD eeNRF_ADDRESS from EEPROM into ramNRF_ADDR
eeprom_read_block((void *)&ram_NRF_ADDR, (const void *)&eeNRF_ADDRESS,5);
// Configure radio channel
nrf_config_register(RF_CH,eeprom_read_byte(&CH));
// Configure NRF RX ADDRESS
nrf_write_register(RX_ADDR_P0, ram_NRF_ADDR, 5);
// Configure Payload Width for this Pipe
nrf_config_register(RX_PW_P0, PAYLOAD_WIDTH);
// This reset the NRF IRQ , RX_DR, TX_DS, MAX_RT
nrf_config_register(STATUS,(1<<RX_DR)|(1<<TX_DS)|(1<<MAX_RT));
// Flush any data in RX register.
nrf_command(FLUSH_RX);
// Activate PRX Mode
CE_HIGH
}
void remote_nrf_config(void)
{
// NRF Default Configuration
uint8_t default_NRF_ADDR[5] = {0xE7,0xE7,0xE7,0xE7,0xE7};
uint8_t default_NRF_CH = 2;
// Deactivate radio before changing configuration
CE_LOW
// Set radio to RX Mode
RX_POWERUP
// This reset the NRF IRQ , RX_DR, TX_DS, MAX_RT
nrf_config_register(STATUS,(1<<RX_DR)|(1<<TX_DS)|(1<<MAX_RT));
// Configure default radio channel
nrf_config_register(RF_CH,default_NRF_CH);
// Configure P0 to default values
nrf_write_register(RX_ADDR_P0, default_NRF_ADDR, 5); // Load address in NRF
nrf_config_register(RX_PW_P0, CFG_PAYLOAD_WIDTH); // Configure Payload Width for this Pipe
// Activate PRX Mode
CE_HIGH
nrf_command(FLUSH_RX); // Flush any data in RX register.
// Enable Radio Interrupt
EIMSK |= (1<<INT0);
}
int main(void)
{
ADCON1 = 0x0F;
CMCON = 0x07;
TRISA = 0x00;
PORTA = 0x00;
interrupt_initialize();
timer_initialize();
nrf_initialize(nrf_transmit_mode, nrf_channel_0, CAFE_ADDRESS | NODE_ID);
nrf_packet_t packet;
uint8_t differ = 0x00;
PORTA = 0x00;
while(1)
{
#if CONSTANT_TRANSMIT
#if SEND_TO_APP
packet.address = CAFE_ADDRESS | HUB_ID;
packet.payload_length = 18;
packet.payload[0] = 0x05; // Branch
packet.payload[1] = (NODE_ID >> 8); // Source ID
packet.payload[2] = (NODE_ID & 0xFF);
packet.payload[3] = (HUB_ID >> 8); // Destination ID
packet.payload[4] = (HUB_ID & 0xFF);
packet.payload[5] = 0x00; // Source App
packet.payload[6] = 0x00;
packet.payload[7] = 0x80; // Destination App
packet.payload[8] = 0x41;
packet.payload[9] = 0x07; // Command
packet.payload[10] = 0x00; // Sub-Command
packet.payload[11] = 0x06; // Payload Length
packet.payload[12] = 0xba; // Payload
packet.payload[13] = 0xba;
packet.payload[14] = 0xde;
packet.payload[15] = 0xca;
packet.payload[16] = 0xfe;
packet.payload[17] = differ++;
nrf_set_mode(nrf_transmit_mode, true);
nrf_flush_fifo(true);
nrf_transmit_packet(packet, false);
while(!(nrf_read_register(NRF_REG_FIFO_STATUS) & 0x10));
PORTA ^= 0x01;
timer_delay_ms(1000);
#endif
#if SEND_TO_HUB_APP
packet.address = CAFE_ADDRESS | HUB_ID;
packet.payload_length = 12;
packet.payload[0] = 0x05; // Branch
packet.payload[1] = (NODE_ID >> 8); // Source ID
packet.payload[2] = (NODE_ID & 0xFF);
packet.payload[3] = (HUB_ID >> 8); // Destination ID
packet.payload[4] = (HUB_ID & 0xFF);
packet.payload[5] = 0x00; // Source App
packet.payload[6] = 0x00;
packet.payload[7] = 0x00; // Destination App
packet.payload[8] = 0x00;
packet.payload[9] = 0x04; // Command
packet.payload[10] = 0x05; // Sub-Command
packet.payload[11] = 0x00; // Payload Length
nrf_set_mode(nrf_transmit_mode, true);
nrf_flush_fifo(true);
nrf_transmit_packet(packet, false);
while(!(nrf_read_register(NRF_REG_FIFO_STATUS) & 0x10));
PORTA ^= 0x02;
timer_delay_ms(1000);
#endif
#if SEND_TO_HUB
packet.address = CAFE_ADDRESS;
packet.payload_length = 13;
packet.payload[0] = 0x05; // Branch
packet.payload[1] = (NODE_ID >> 8); // Source ID
packet.payload[2] = (NODE_ID & 0xFF);
packet.payload[3] = 0x00; // Destination ID
packet.payload[4] = 0x00;
packet.payload[5] = 0x00; // Source App
packet.payload[6] = 0x00;
packet.payload[7] = 0x00; // Destination App
packet.payload[8] = 0x00;
packet.payload[9] = 0x05; // Command
packet.payload[10] = 0x05; // Sub-Command
packet.payload[11] = 0x01; // Payload Length
packet.payload[11] = differ; // Payload
nrf_set_mode(nrf_transmit_mode, true);
nrf_flush_fifo(true);
nrf_transmit_packet(packet, false);
while(!(nrf_read_register(NRF_REG_FIFO_STATUS) & 0x10));
PORTA ^= 0x02;
timer_delay_ms(1000);
#endif
#if SEND_HUB_ID_REQUEST
packet.address = CAFE_ADDRESS | HUB_ID;
packet.payload_length = 13;
packet.payload[0] = 0x05; // Branch
packet.payload[1] = (NODE_ID >> 8); // Source ID
packet.payload[2] = (NODE_ID & 0xFF);
packet.payload[3] = (HUB_ID >> 8); // Destination ID
packet.payload[4] = (HUB_ID & 0xFF);
packet.payload[5] = 0x00; // Source App
packet.payload[6] = 0x00;
packet.payload[7] = 0x00; // Destination App
packet.payload[8] = 0x00;
packet.payload[9] = 0x06; // Command
packet.payload[10] = 0x05; // Sub-Command
packet.payload[11] = 0x01; // Payload Length
packet.payload[12] = 0x01; // Payload
nrf_set_mode(nrf_transmit_mode, true);
nrf_flush_fifo(true);
nrf_transmit_packet(packet, false);
while(!(nrf_read_register(NRF_REG_FIFO_STATUS) & 0x10));
PORTA ^= 0x02;
timer_delay_ms(1000);
#endif
#elif SEND_PACKETS
packet.address = CAFE_ADDRESS | HUB_ID;
packet.payload_length = 18;
packet.payload[0] = 0x05; // Branch
packet.payload[1] = (NODE_ID >> 8); // Source ID
packet.payload[2] = (NODE_ID & 0xFF);
packet.payload[3] = (HUB_ID >> 8); // Destination ID
packet.payload[4] = (HUB_ID & 0xFF);
packet.payload[5] = 0x00; // Source App
packet.payload[6] = 0x00;
packet.payload[7] = 0x00; // Destination App
packet.payload[8] = 0x02;
packet.payload[9] = 0x01; // Command
packet.payload[10] = 0x00; // Sub-Command
packet.payload[11] = 0x00; // Payload Length
PORTA ^= 0x01;
nrf_set_mode(nrf_transmit_mode, true);
nrf_flush_fifo(true);
nrf_transmit_packet(packet, false);
while(!(nrf_read_register(NRF_REG_FIFO_STATUS) & 0x10));
PORTA ^= 0x01;
nrf_set_mode(nrf_receive_mode, true);
nrf_flush_fifo(false);
uint8_t delay_count = 0;
PORTA ^= 0x02;
while((nrf_read_register(NRF_REG_FIFO_STATUS) & 0x01) && (delay_count < 40))
{
timer_delay_ms(25);
delay_count++;
}
PORTA ^= 0x02;
if(delay_count < 40)
{
if(nrf_read_packet(&packet) != SUCCESS)
delay_count = 40;
else
PORTA ^= 0x04;
}
if(delay_count < 40)
timer_delay_ms(2000);
timer_delay_ms(2000);
#elif RECEIVE_PACKETS
nrf_set_mode(nrf_receive_mode, false);
while(!(nrf_read_register(NRF_REG_FIFO_STATUS) & 0x01))
{
timer_delay_ms(50);
PORTA ^= 0x02;
nrf_read_packet(&packet);
uint16_t temp;
temp = (packet.payload[1] << 8);
temp |= packet.payload[2];
packet.address = CAFE_ADDRESS | temp;
packet.payload_length = 12;
packet.payload[1] = (NODE_ID >> 8);
packet.payload[2] = (NODE_ID & 0xFF);
packet.payload[3] = (temp >> 8);
packet.payload[4] = (temp & 0xFF);
temp = (packet.payload[5] << 8);
temp |= packet.payload[6];
packet.payload[5] = packet.payload[7];
packet.payload[6] = packet.payload[8];
packet.payload[7] = (temp >> 8);
packet.payload[8] = (temp & 0xFF);
packet.payload[9] ^= 0x80;
packet.payload[10] = differ++;
packet.payload[11] = 0x00;
PORTA ^= 0x01;
nrf_set_mode(nrf_transmit_mode, true);
nrf_flush_fifo(true);
nrf_transmit_packet(packet, false);
while(!(nrf_read_register(NRF_REG_FIFO_STATUS) & 0x10));
PORTA ^= 0x01;
nrf_set_mode(nrf_receive_mode, false);
nrf_write_register(NRF_REG_STATUS, 0x20);
}
#endif
}
}
