コード例 #1
0
ファイル: esky_nrf24l01.c プロジェクト: DeviationTX/deviation
static void esky_init2()
{
    NRF24L01_FlushTx();
    packet_sent = 0;
    rf_ch_num = 0;
    u32 channel_ord = rand32_r(0, 0) % 74;
    channel_code = 10 + (u8) channel_ord;
    u8 channel1, channel2;
    channel1 = 10 + (u8) ((37 + channel_ord*5) % 74);
    channel2 = 10 + (u8) ((channel_ord*5) % 74) ;
    printf("channel code %d, channel1 %d, channel2 %d\n", (int) channel_code, (int) channel1, (int) channel2);

    rf_channels[0] = channel1;
    rf_channels[1] = channel1;
    rf_channels[2] = channel1;
    rf_channels[3] = channel2;
    rf_channels[4] = channel2;
    rf_channels[5] = channel2;

    end_bytes[0] = 6;
    end_bytes[1] = channel1*2;
    end_bytes[2] = channel2*2;
    end_bytes[3] = 6;
    end_bytes[4] = channel1*2;
    end_bytes[5] = channel2*2;

    // Turn radio power on
    NRF24L01_SetTxRxMode(TX_EN);
    u8 config = BV(NRF24L01_00_EN_CRC) | BV(NRF24L01_00_CRCO) | BV(NRF24L01_00_PWR_UP);
    NRF24L01_WriteReg(NRF24L01_00_CONFIG, config);
    // Implicit delay in callback
    // delayMicroseconds(150);
}
コード例 #2
0
//Send a packet and receive the ACK
//Return true in case of success.
//Polling implementation
unsigned char NRF24L01_SendPacket(char *payload, char len, char *ackPayload, char *ackLen)
{
  char status = 0;
  
  //Send the packet
  NRF24L01_TxPacket(payload, len);
  //Wait for something to happen
  while(((status=NRF24L01_Nop())&0x70) == 0);
  
  // Clear the flags
  NRF24L01_WriteReg(REG_STATUS, 0x70);
  
  //Return FALSE if the packet has not been transmited
  if (status&BIT_MAX_RT) {
    NRF24L01_FlushTx();
    return 0;
  }
    
  //Receive the ackPayload if any has been received
  if (status&BIT_RX_DR)
    *ackLen = NRF24L01_RxPacket(ackPayload);
  else 
    *ackLen = 0;
  
  NRF24L01_FlushRx();
  
  return status&BIT_TX_DS;
}
コード例 #3
0
void send_packet()
{
    u32 temp;
    for(u8 ch=0;ch<8;ch++)
    {
        temp=((s32)Channels[ch] * 0x1f1 / CHAN_MAX_VALUE + 0x5d9)<<3;
        packet[2*ch]=temp>>8;
        packet[2*ch+1]=temp;
    }
    for(u8 i=0; i<ADDRESS_LENGTH; i++)
        packet[16+i]=packet[23-i];
    NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);        // Clear data ready, data sent, and retransmit
    NRF24L01_FlushTx();
    NRF24L01_WritePayload(packet, PACKET_SIZE);

    // Check and adjust transmission power. We do this after
    // transmission to not bother with timeout after power
    // settings change -  we have plenty of time until next
    // packet.
    if (tx_power != Model.tx_power) {
        //Keep transmit power updated
        tx_power = Model.tx_power;
        NRF24L01_SetPower(tx_power);
    }
}
コード例 #4
0
ファイル: nrf24_v202.c プロジェクト: basdelfos/betaflight
static void v202Nrf24Setup(rx_spi_protocol_e protocol)
{
    NRF24L01_Initialize(BV(NRF24L01_00_CONFIG_EN_CRC) | BV(NRF24L01_00_CONFIG_CRCO)); // 2-bytes CRC

    NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);      // No Auto Acknowledgment
    NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, BV(NRF24L01_02_EN_RXADDR_ERX_P0));  // Enable data pipe 0
    NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, NRF24L01_03_SETUP_AW_5BYTES);   // 5-byte RX/TX address
    NRF24L01_WriteReg(NRF24L01_04_SETUP_RETR, 0xFF); // 4ms retransmit t/o, 15 tries
    if (protocol == RX_SPI_NRF24_V202_250K) {
        NRF24L01_WriteReg(NRF24L01_06_RF_SETUP, NRF24L01_06_RF_SETUP_RF_DR_250Kbps | NRF24L01_06_RF_SETUP_RF_PWR_n12dbm);
    } else {
        NRF24L01_WriteReg(NRF24L01_06_RF_SETUP, NRF24L01_06_RF_SETUP_RF_DR_1Mbps | NRF24L01_06_RF_SETUP_RF_PWR_n12dbm);
    }
    NRF24L01_WriteReg(NRF24L01_07_STATUS, BV(NRF24L01_07_STATUS_RX_DR) | BV(NRF24L01_07_STATUS_TX_DS) | BV(NRF24L01_07_STATUS_MAX_RT));     // Clear data ready, data sent, and retransmit
    NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0, V2X2_PAYLOAD_SIZE);  // bytes of data payload for pipe 0
    NRF24L01_WriteReg(NRF24L01_17_FIFO_STATUS, 0x00); // Just in case, no real bits to write here
#define RX_TX_ADDR_LEN 5
    const uint8_t rx_tx_addr[RX_TX_ADDR_LEN] = {0x66, 0x88, 0x68, 0x68, 0x68};
    NRF24L01_WriteRegisterMulti(NRF24L01_0A_RX_ADDR_P0, rx_tx_addr, RX_TX_ADDR_LEN);
    NRF24L01_WriteRegisterMulti(NRF24L01_10_TX_ADDR, rx_tx_addr, RX_TX_ADDR_LEN);

    NRF24L01_FlushTx();
    NRF24L01_FlushRx();

    rf_ch_num = 0;
    bind_phase = PHASE_NOT_BOUND;
    prepare_to_bind();
    switch_channel();
    NRF24L01_SetRxMode(); // enter receive mode to start listening for packets
}
コード例 #5
0
ファイル: cflie_nrf24l01.c プロジェクト: phantom-8/deviation
static void send_search_packet()
{
    uint8_t buf[1];
    buf[0] = 0xff;
    // clear packet status bits and TX FIFO
    NRF24L01_WriteReg(NRF24L01_07_STATUS, (BV(NRF24L01_07_TX_DS) | BV(NRF24L01_07_MAX_RT)));
    NRF24L01_FlushTx();

    if (rf_channel++ > 125) {
        rf_channel = 0;
        switch(data_rate) {
        case NRF24L01_BR_250K:
            data_rate = NRF24L01_BR_1M;
            break;
        case NRF24L01_BR_1M:
            data_rate = NRF24L01_BR_2M;
            break;
        case NRF24L01_BR_2M:
            data_rate = NRF24L01_BR_250K;
            break;
        }
    }

    set_rate_channel(data_rate, rf_channel);

    NRF24L01_WritePayload(buf, sizeof(buf));

    ++packet_counter;
}
コード例 #6
0
ファイル: nrf24l01.c プロジェクト: nongxiaoming/STM32F4_Tx
int NRF24L01_Reset()
{
    NRF24L01_FlushTx();
    NRF24L01_FlushRx();
    u8 status1 = Strobe(NOP);
    u8 status2 = NRF24L01_ReadReg(0x07);
    NRF24L01_SetTxRxMode(TXRX_OFF);
    return (status1 == status2 && (status1 & 0x0f) == 0x0e);
}
コード例 #7
0
ファイル: rx_v202.c プロジェクト: woogluf/bradwii
void initrx(void)
{
    NRF24L01_Initialize();

    reset_beken();

    // 2-bytes CRC, radio off
    uint8_t config = BV(NRF24L01_00_EN_CRC) | BV(NRF24L01_00_CRCO) | BV(NRF24L01_00_PRIM_RX);

    NRF24L01_WriteReg(NRF24L01_00_CONFIG, config);
    NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);      // No Auto Acknoledgement
    NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);  // Enable data pipe 0
    NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, 0x03);   // 5-byte RX/TX address
    NRF24L01_WriteReg(NRF24L01_04_SETUP_RETR, 0xFF); // 4ms retransmit t/o, 15 tries
//    NRF24L01_WriteReg(NRF24L01_05_RF_CH, 0x08);      // Channel 8 - bind
    //NRF24L01_SetBitrate(NRF24L01_BR_1M);                          // 1Mbps
    NRF24L01_SetBitrate(NRF24L01_BR_250K); //250k for longer range.
    NRF24L01_SetPower(TXPOWER_100mW);
    NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);     // Clear data ready, data sent, and retransmit
    NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0, V2X2_PAYLOAD_SIZE);  // bytes of data payload for pipe 0
    NRF24L01_WriteReg(NRF24L01_17_FIFO_STATUS, 0x00); // Just in case, no real bits to write here
    uint8_t rx_tx_addr[] = {0x66, 0x88, 0x68, 0x68, 0x68};
//    uint8_t rx_p1_addr[] = {0x88, 0x66, 0x86, 0x86, 0x86};
    NRF24L01_WriteRegisterMulti(NRF24L01_0A_RX_ADDR_P0, rx_tx_addr, 5);
//    NRF24L01_WriteRegisterMulti(NRF24L01_0B_RX_ADDR_P1, rx_p1_addr, 5);
    NRF24L01_WriteRegisterMulti(NRF24L01_10_TX_ADDR, rx_tx_addr, 5);

    initialize_beken();

    lib_timers_delaymilliseconds(50);

    NRF24L01_FlushTx();
    NRF24L01_FlushRx();

    rf_ch_num = 0;

    // Turn radio power on
    config |= BV(NRF24L01_00_PWR_UP);
    NRF24L01_WriteReg(NRF24L01_00_CONFIG, config);
    // delayMicroseconds(150);
    lib_timers_delaymilliseconds(1); // 6 times more than needed

    valid_packets = missed_packets = bad_packets = 0;

    if (usersettings.boundprotocol == PROTO_NONE) {
        bind_phase = PHASE_NOT_BOUND;
        prepare_to_bind();
    } else {
        // Prepare to listen to bound protocol, if fails
        // try to bind
        bind_phase = PHASE_JUST_BOUND;
        set_bound();
    }
    switch_channel();
}
コード例 #8
0
static uint16_t esky150_init2()
{
    NRF24L01_FlushTx();
    NRF24L01_FlushRx();
    packet_sent = 0;
    packet_count = 0;
    rf_ch_num = 0;

    // Turn radio power on
    NRF24L01_WriteReg(NRF24L01_00_CONFIG, CRC_CONFIG | BV(NRF24L01_00_PWR_UP));
    // delayMicroseconds(150);
    return 150u;
}
コード例 #9
0
void init()
{
    NRF24L01_Initialize();
    NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, 0x02);          // 4 bytes rx/tx address
    NRF24L01_WriteRegisterMulti(NRF24L01_10_TX_ADDR, (u8 *)"\x80\x80\x80\xB8", ADDRESS_LENGTH);     // Bind address
    NRF24L01_WriteRegisterMulti(NRF24L01_0A_RX_ADDR_P0, (u8 *)"\x80\x80\x80\xB8", ADDRESS_LENGTH);  // Bind address
    NRF24L01_FlushTx();
    NRF24L01_FlushRx();
    NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);            // Clear data ready, data sent, and retransmit
    NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);             // No Auto Acknowldgement on all data pipes
    NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);         // Enable data pipe 0 only
    NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0, PACKET_SIZE);
    NRF24L01_SetPower(Model.tx_power);
}
コード例 #10
0
ファイル: dm002_nrf24l01.c プロジェクト: F-D-R/deviation
static void DM002_init()
{
    NRF24L01_Initialize();
    NRF24L01_SetTxRxMode(TX_EN);
    XN297_SetTXAddr((uint8_t *)"\x26\xA8\x67\x35\xCC", DM002_ADDRESS_SIZE);

    NRF24L01_FlushTx();
    NRF24L01_FlushRx();
    NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);     // Clear data ready, data sent, and retransmit
    NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);      // No Auto Acknowldgement on all data pipes
    NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);  // Enable data pipe 0 only
    NRF24L01_SetBitrate(NRF24L01_BR_1M);             // 1Mbps
    NRF24L01_SetPower(Model.tx_power);
    
    // Check for Beken BK2421/BK2423 chip
    // It is done by using Beken specific activate code, 0x53
    // and checking that status register changed appropriately
    // There is no harm to run it on nRF24L01 because following
    // closing activate command changes state back even if it
    // does something on nRF24L01
    NRF24L01_Activate(0x53); // magic for BK2421 bank switch
    dbgprintf("Trying to switch banks\n");
    if (NRF24L01_ReadReg(NRF24L01_07_STATUS) & 0x80) {
        dbgprintf("BK2421 detected\n");
        // Beken registers don't have such nice names, so we just mention
        // them by their numbers
        // It's all magic, eavesdropped from real transfer and not even from the
        // data sheet - it has slightly different values
        NRF24L01_WriteRegisterMulti(0x00, (u8 *) "\x40\x4B\x01\xE2", 4);
        NRF24L01_WriteRegisterMulti(0x01, (u8 *) "\xC0\x4B\x00\x00", 4);
        NRF24L01_WriteRegisterMulti(0x02, (u8 *) "\xD0\xFC\x8C\x02", 4);
        NRF24L01_WriteRegisterMulti(0x03, (u8 *) "\x99\x00\x39\x21", 4);
        NRF24L01_WriteRegisterMulti(0x04, (u8 *) "\xD9\x96\x82\x1B", 4);
        NRF24L01_WriteRegisterMulti(0x05, (u8 *) "\x24\x06\x7F\xA6", 4);
        NRF24L01_WriteRegisterMulti(0x0C, (u8 *) "\x00\x12\x73\x00", 4);
        NRF24L01_WriteRegisterMulti(0x0D, (u8 *) "\x46\xB4\x80\x00", 4);
        NRF24L01_WriteRegisterMulti(0x04, (u8 *) "\xDF\x96\x82\x1B", 4);
        NRF24L01_WriteRegisterMulti(0x04, (u8 *) "\xD9\x96\x82\x1B", 4);
    } else {
        dbgprintf("nRF24L01 detected\n");
    }
    NRF24L01_Activate(0x53); // switch bank back
}
コード例 #11
0
ファイル: cflie_nrf24l01.c プロジェクト: phantom-8/deviation
// Helper for sending a packet
// Assumes packet data has been put in tx_packet
// and tx_payload_len has been set correctly
static void send_packet()
{
    // clear packet status bits and Tx/Rx FIFOs
    NRF24L01_WriteReg(NRF24L01_07_STATUS, (BV(NRF24L01_07_TX_DS) | BV(NRF24L01_07_MAX_RT)));
    NRF24L01_FlushTx();
    NRF24L01_FlushRx();

    // Transmit the payload
    NRF24L01_WritePayload(tx_packet, tx_payload_len);

    ++packet_counter;

    // Check and adjust transmission power. We do this after
    // transmission to not bother with timeout after power
    // settings change -  we have plenty of time until next
    // packet.
    if (tx_power != Model.tx_power) {
        //Keep transmit power updated
        tx_power = Model.tx_power;
        NRF24L01_SetPower(tx_power);
    }
}
コード例 #12
0
static void send_packet(u8 bind)
{
    union {
        u16 value;
        struct {
            u8 lsb;
            u8 msb;
        } bytes;
    } chanval;

    if (bind) {
        if (telemetry)
            packet[0] = 0xa3;
        else
            packet[0] = 0xa4;

        memcpy(&packet[1], rx_tx_addr, 5);
        memcpy(&packet[6], rf_channels, 4);
        switch (Model.proto_opts[PROTOOPTS_FORMAT]) {
                case FORMAT_REGULAR:
                    packet[10] = txid[0];
                    packet[11] = txid[1];
                    break;
                case FORMAT_X16_AH:
                    packet[10] = 0x00;
                    packet[11] = 0x00;
                    break;
                case FORMAT_IRDRONE:
                    packet[10] = 0x30;
                    packet[11] = 0x01;
                    break;
        }

    } else {
        switch (Model.proto_opts[PROTOOPTS_FORMAT]) {
                case FORMAT_REGULAR:
                    packet[0] = 0xa5;
                    break;
                case FORMAT_X16_AH:
                case FORMAT_IRDRONE:
                    packet[0] = 0xa6;
                    break;
        }
        packet[1] = 0xfa;       // normal mode is 0xf7, expert 0xfa
        packet[2] = GET_FLAG(CHANNEL_FLIP, 0x08)
            | GET_FLAG(CHANNEL_HEADLESS, 0x02)
            | GET_FLAG(CHANNEL_RTH, 0x01)
            | GET_FLAG(CHANNEL_VIDEO, 0x10)
            | GET_FLAG(CHANNEL_PICTURE, 0x20);
        packet[3] = GET_FLAG(CHANNEL_INVERTED, 0x80)
            | GET_FLAG(CHANNEL_TO, 0x20)
		    | GET_FLAG(CHANNEL_EMGSTOP, 0x04);
        chanval.value = scale_channel(CHANNEL1, 0x3ff, 0);      // aileron
        packet[4] = chanval.bytes.msb + DYNTRIM(chanval.value);
        packet[5] = chanval.bytes.lsb;
        chanval.value = scale_channel(CHANNEL2, 0, 0x3ff);      // elevator
        packet[6] = chanval.bytes.msb + DYNTRIM(chanval.value);
        packet[7] = chanval.bytes.lsb;
        chanval.value = scale_channel(CHANNEL3, 0, 0x3ff);      // throttle
        packet[8] = chanval.bytes.msb + 0x7c;
        packet[9] = chanval.bytes.lsb;
        chanval.value = scale_channel(CHANNEL4, 0x3ff, 0);      // rudder
        packet[10] = chanval.bytes.msb + DYNTRIM(chanval.value);
        packet[11] = chanval.bytes.lsb;
    }

    switch (Model.proto_opts[PROTOOPTS_FORMAT]) {
            case FORMAT_REGULAR:
                packet[12] = txid[2];
                packet[13] = 0x0a;
                break;
            case FORMAT_X16_AH:
                packet[12] = 0x00;
                packet[13] = 0x00;
                break;
            case FORMAT_IRDRONE:
                packet[12] = 0xe0;
                packet[13] = 0x2e;
                break;
    }

    packet[14] = checksum();



    NRF24L01_WriteReg(NRF24L01_05_RF_CH,
              bind ? bind_chan : rf_channels[rf_chan++]);

    rf_chan %= sizeof(rf_channels);

    NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
    NRF24L01_FlushTx();

    XN297_WritePayload(packet, PACKET_SIZE);

    NRF24L01_SetTxRxMode(TXRX_OFF);
    NRF24L01_SetTxRxMode(TX_EN);

    // Power on, TX mode, 2byte CRC
    // Why CRC0? xn297 does not interpret it - either 16-bit CRC or nothing
    XN297_Configure(BV(NRF24L01_00_EN_CRC) | BV(NRF24L01_00_CRCO) |
                    BV(NRF24L01_00_PWR_UP));


    if (telemetry) {
        // switch radio to rx, no crc
        NRF24L01_WriteReg(NRF24L01_00_CONFIG, 0x03);
    }
    // Check and adjust transmission power. We do this after
    // transmission to not bother with timeout after power
    // settings change -  we have plenty of time until next
    // packet.
    if (tx_power != Model.tx_power) {
        //Keep transmit power updated
        tx_power = Model.tx_power;
        NRF24L01_SetPower(tx_power);
    }
#ifdef EMULATOR
    dbgprintf("next chan 0x%02x, bind %d, data %02x",
              bind ? bind_chan : rf_channels[rf_chan], bind,
              packet[0]);
    for (int i = 1; i < PACKET_SIZE; i++)
        dbgprintf(" %02x", packet[i]);
    dbgprintf("\n");
#endif
}
コード例 #13
0
ファイル: dm002_nrf24l01.c プロジェクト: F-D-R/deviation
static void DM002_send_packet(u8 bind)
{
    memcpy(&packet[5],(uint8_t *)"\x00\x7F\x7F\x7F\x00\x00\x00",7);
    if(bind)
    {
        packet[0] = 0xAA;
        packet[1] = rx_tx_addr[0]; 
        packet[2] = rx_tx_addr[1];
        packet[3] = rx_tx_addr[2];
        packet[4] = rx_tx_addr[3];
    }
    else
    {
        packet[0]=0x55;
        // Throttle : 0 .. 200
        packet[1]=scale_channel(CHANNEL3,0,200);
        // Other channels min 0x57, mid 0x7F, max 0xA7
        packet[2] = scale_channel(CHANNEL4,0xA7,0x57);     // rudder
        packet[3] = scale_channel(CHANNEL1, 0xA7,0x57);  // aileron
        packet[4] = scale_channel(CHANNEL2, 0xA7, 0x57); // elevator
        // Features
        packet[9] =   DM002_FLAG_HIGH // high rate
                    | GET_FLAG(CHANNEL_FLIP,    DM002_FLAG_FLIP)
                    | GET_FLAG_INV(CHANNEL_LED, DM002_FLAG_LED)
                    | GET_FLAG(CHANNEL_CAMERA1, DM002_FLAG_CAMERA1)
                    | GET_FLAG(CHANNEL_CAMERA2, DM002_FLAG_CAMERA2)
                    | GET_FLAG(CHANNEL_HEADLESS,DM002_FLAG_HEADLESS)
                    | GET_FLAG(CHANNEL_RTH,     DM002_FLAG_RTH);
        // Packet counter
        if(packet_count&0x03)
        {
            packet_count++;
            hopping_frequency_no++;
            hopping_frequency_no&=4;
        }
        packet_count&=0x0F;
        packet[10] = packet_count;
        packet_count++;
    }
    //CRC
    for(uint8_t i=0;i<DM002_PACKET_SIZE-1;i++)
        packet[11]+=packet[i];
    
    // Power on, TX mode, 2byte CRC
    // Why CRC0? xn297 does not interpret it - either 16-bit CRC or nothing
    XN297_Configure(BV(NRF24L01_00_EN_CRC) | BV(NRF24L01_00_CRCO) | BV(NRF24L01_00_PWR_UP));
    if (bind)
        NRF24L01_WriteReg(NRF24L01_05_RF_CH, DM002_RF_BIND_CHANNEL);
    else
        NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[hopping_frequency_no]);
    // clear packet status bits and TX FIFO
    NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
    NRF24L01_FlushTx();
    XN297_WritePayload(packet, DM002_PACKET_SIZE);

    if (tx_power != Model.tx_power) {
        //Keep transmit power updated
        tx_power = Model.tx_power;
        NRF24L01_SetPower(tx_power);
    }
}