mirror of
https://github.com/pascallanger/DIY-Multiprotocol-TX-Module.git
synced 2025-02-04 16:38:12 +00:00
661 lines
21 KiB
C++
661 lines
21 KiB
C++
/*
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This project is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Multiprotocol is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Multiprotocol. If not, see <http://www.gnu.org/licenses/>.
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*/
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// sub_protocol: 0=250Kbps, 1=1Mbps, 2=2Mbps. Other values default to 1Mbps.
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// RX_num = address length 3 or 4 or 5. Other values default to 5.
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// option = RF channel number 0..84 and -1 = scan all channels. Other values default to RF channel 0.
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#ifdef XN297DUMP_NRF24L01_INO
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#include "iface_nrf24l01.h"
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// Parameters which can be modified
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#define XN297DUMP_PERIOD_SCAN 50000 // 25000
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#define XN297DUMP_MAX_RF_CHANNEL 84 // Default 84
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// Do not touch from there
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#define XN297DUMP_INITIAL_WAIT 500
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#define XN297DUMP_MAX_PACKET_LEN 32
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#define XN297DUMP_CRC_LENGTH 2
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uint8_t address_length;
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uint16_t timeH=0;
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boolean scramble;
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boolean enhanced;
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boolean ack;
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uint8_t pid;
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uint8_t bitrate;
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static void __attribute__((unused)) XN297Dump_init()
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{
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NRF24L01_Initialize();
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NRF24L01_SetTxRxMode(RX_EN);
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NRF24L01_FlushTx();
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NRF24L01_FlushRx();
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NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
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NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00); // No Auto Acknowledgment on all data pipes
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NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01); // Enable data pipe 0 only
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NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, 0x01); // 3 bytes RX/TX address
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NRF24L01_WriteRegisterMulti(NRF24L01_0A_RX_ADDR_P0, (uint8_t*)"\x55\x0F\x71", 3); // set up RX address to xn297 preamble
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NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0, XN297DUMP_MAX_PACKET_LEN); // Enable rx pipe 0
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debug("XN297 dump, address length=%d, bitrate=",address_length);
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switch(bitrate)
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{
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case XN297DUMP_250K:
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NRF24L01_SetBitrate(NRF24L01_BR_250K);
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debugln("250K");
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break;
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case XN297DUMP_2M:
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NRF24L01_SetBitrate(NRF24L01_BR_2M);
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debugln("2M");
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break;
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default:
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NRF24L01_SetBitrate(NRF24L01_BR_1M);
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debugln("1M");
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break;
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}
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NRF24L01_Activate(0x73); // Activate feature register
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NRF24L01_WriteReg(NRF24L01_1C_DYNPD, 0x00); // Disable dynamic payload length on all pipes
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NRF24L01_WriteReg(NRF24L01_1D_FEATURE, 0x01);
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NRF24L01_Activate(0x73);
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NRF24L01_SetPower();
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}
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static boolean __attribute__((unused)) XN297Dump_process_packet(void)
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{
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uint16_t crcxored;
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uint8_t packet_sc[XN297DUMP_MAX_PACKET_LEN], packet_un[XN297DUMP_MAX_PACKET_LEN];
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enhanced=false;
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// init crc
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crc = 0xb5d2;
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/*debug("P: 71 0F 55 ");
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for(uint8_t i=0; i<XN297DUMP_MAX_PACKET_LEN; i++)
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debug("%02X ",packet[i]);
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debugln("");*/
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//Try normal payload
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// address
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for (uint8_t i = 0; i < address_length; i++)
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{
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crc = crc16_update(crc, packet[i], 8);
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packet_un[address_length-1-i]=packet[i];
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packet_sc[address_length-1-i]=packet[i] ^ xn297_scramble[i];
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}
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// payload
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for (uint8_t i = address_length; i < XN297DUMP_MAX_PACKET_LEN-XN297DUMP_CRC_LENGTH; i++)
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{
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crc = crc16_update(crc, packet[i], 8);
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packet_sc[i] = bit_reverse(packet[i]^xn297_scramble[i]);
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packet_un[i] = bit_reverse(packet[i]);
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// check crc
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crcxored = crc ^ pgm_read_word(&xn297_crc_xorout[i+1 - 3]);
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if( (crcxored >> 8) == packet[i + 1] && (crcxored & 0xff) == packet[i + 2])
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{
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packet_length=i+1;
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memcpy(packet,packet_un,packet_length);
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scramble=false;
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return true;
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}
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crcxored = crc ^ pgm_read_word(&xn297_crc_xorout_scrambled[i+1 - 3]);
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if( (crcxored >> 8) == packet[i + 1] && (crcxored & 0xff) == packet[i + 2])
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{
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packet_length=i+1;
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memcpy(packet,packet_sc,packet_length);
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scramble=true;
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return true;
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}
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}
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//Try enhanced payload
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crc = 0xb5d2;
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packet_length=0;
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uint16_t crc_enh;
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for (uint8_t i = 0; i < XN297DUMP_MAX_PACKET_LEN-XN297DUMP_CRC_LENGTH; i++)
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{
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packet_sc[i]=packet[i]^xn297_scramble[i];
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crc = crc16_update(crc, packet[i], 8);
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crc_enh = crc16_update(crc, packet[i+1] & 0xC0, 2);
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crcxored=(packet[i+1]<<10)|(packet[i+2]<<2)|(packet[i+3]>>6) ;
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if((crc_enh ^ pgm_read_word(&xn297_crc_xorout_scrambled_enhanced[i - 3])) == crcxored)
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{ // Found a valid CRC for the enhanced payload mode
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packet_length=i;
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scramble=true;
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i++;
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packet_sc[i]=packet[i]^xn297_scramble[i];
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memcpy(packet_un,packet_sc,packet_length+2); // unscramble packet
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break;
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}
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if((crc_enh ^ pgm_read_word(&xn297_crc_xorout_enhanced[i - 3])) == crcxored)
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{ // Found a valid CRC for the enhanced payload mode
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packet_length=i;
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scramble=false;
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memcpy(packet_un,packet,packet_length+2); // packet is unscrambled
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break;
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}
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}
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if(packet_length!=0)
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{ // Found a valid CRC for the enhanced payload mode
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enhanced=true;
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//check selected address length
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if((packet_un[address_length]>>1)!=packet_length-address_length)
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{
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for(uint8_t i=3;i<=5;i++)
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if((packet_un[i]>>1)==packet_length-i)
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address_length=i;
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debugln("Detected wrong address length, using %d intead", address_length );
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}
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pid=((packet_un[address_length]&0x01)<<1)|(packet_un[address_length+1]>>7);
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ack=(packet_un[address_length+1]>>6)&0x01;
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// address
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for (uint8_t i = 0; i < address_length; i++)
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packet[address_length-1-i]=packet_un[i];
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// payload
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for (uint8_t i = address_length; i < packet_length; i++)
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packet[i] = bit_reverse((packet_un[i+1]<<2)|(packet_un[i+2]>>6));
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return true;
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}
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return false;
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}
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static void __attribute__((unused)) XN297Dump_overflow()
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{
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if(TIMER2_BASE->SR & TIMER_SR_UIF)
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{ // timer overflow
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timeH++;
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TIMER2_BASE->SR = 0x1E5F & ~TIMER_SR_UIF; // Clear Timer2 overflow flag
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}
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}
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static uint16_t XN297Dump_callback()
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{
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static uint32_t time=0,*time_rf;
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//!!!Blocking mode protocol!!!
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TX_MAIN_PAUSE_off;
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tx_resume();
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while(1)
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{
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if(sub_protocol<XN297DUMP_AUTO)
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{
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if(option==0xFF && bind_counter>XN297DUMP_PERIOD_SCAN)
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{ // Scan frequencies
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hopping_frequency_no++;
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bind_counter=0;
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}
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if(hopping_frequency_no!=rf_ch_num)
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{ // Channel has changed
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if(hopping_frequency_no>XN297DUMP_MAX_RF_CHANNEL)
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hopping_frequency_no=0; // Invalid channel 0 by default
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rf_ch_num=hopping_frequency_no;
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debugln("Channel=%d,0x%02X",hopping_frequency_no,hopping_frequency_no);
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NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency_no);
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// switch to RX mode
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NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
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NRF24L01_SetTxRxMode(TXRX_OFF);
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NRF24L01_SetTxRxMode(RX_EN);
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NRF24L01_FlushRx();
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NRF24L01_WriteReg(NRF24L01_00_CONFIG, (0 << NRF24L01_00_EN_CRC) // switch to RX mode and disable CRC
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| (1 << NRF24L01_00_CRCO)
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| (1 << NRF24L01_00_PWR_UP)
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| (1 << NRF24L01_00_PRIM_RX));
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phase=0; // init timer
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}
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XN297Dump_overflow();
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if( NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR))
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{ // RX fifo data ready
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if(NRF24L01_ReadReg(NRF24L01_09_CD) || option != 0xFF)
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{
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NRF24L01_ReadPayload(packet,XN297DUMP_MAX_PACKET_LEN);
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XN297Dump_overflow();
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uint16_t timeL=TCNT1;
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if(TIMER2_BASE->SR & TIMER_SR_UIF)
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{//timer just rolled over...
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XN297Dump_overflow();
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timeL=0;
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}
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if((phase&0x01)==0)
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{
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phase=1;
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time=0;
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}
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else
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time=(timeH<<16)+timeL-time;
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if(XN297Dump_process_packet())
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{ // valid crc found
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debug("RX: %5luus C=%d ", time>>1 , hopping_frequency_no);
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time=(timeH<<16)+timeL;
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if(enhanced)
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{
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debug("Enhanced ");
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debug("pid=%d ",pid);
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if(ack) debug("ack ");
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}
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debug("S=%c A=",scramble?'Y':'N');
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for(uint8_t i=0; i<address_length; i++)
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{
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debug(" %02X",packet[i]);
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}
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debug(" P(%d)=",packet_length-address_length);
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for(uint8_t i=address_length; i<packet_length; i++)
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{
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debug(" %02X",packet[i]);
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}
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debugln("");
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}
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else
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{
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debugln("RX: %5luus C=%d Bad CRC", time>>1 , hopping_frequency_no);
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}
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}
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XN297Dump_overflow();
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// restart RX mode
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NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
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NRF24L01_SetTxRxMode(TXRX_OFF);
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NRF24L01_SetTxRxMode(RX_EN);
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NRF24L01_FlushRx();
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NRF24L01_WriteReg(NRF24L01_00_CONFIG, (0 << NRF24L01_00_EN_CRC) // switch to RX mode and disable CRC
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| (1 << NRF24L01_00_CRCO)
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| (1 << NRF24L01_00_PWR_UP)
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| (1 << NRF24L01_00_PRIM_RX));
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XN297Dump_overflow();
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}
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}
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else
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{
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switch(phase)
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{
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case 0:
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debugln("------------------------");
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debugln("Detecting XN297 packets.");
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XN297Dump_init();
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debug("Trying RF channel: 0");
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hopping_frequency_no=0;
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bitrate=0;
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phase++;
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break;
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case 1:
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if(bind_counter>XN297DUMP_PERIOD_SCAN)
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{ // Scan frequencies
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hopping_frequency_no++;
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bind_counter=0;
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if(hopping_frequency_no>XN297DUMP_MAX_RF_CHANNEL)
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{
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hopping_frequency_no=0;
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bitrate++;
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bitrate%=3;
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debugln("");
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XN297Dump_init();
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debug("Trying RF channel: 0");
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}
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if(hopping_frequency_no)
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debug(",%d",hopping_frequency_no);
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NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency_no);
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// switch to RX mode
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NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
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NRF24L01_SetTxRxMode(TXRX_OFF);
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NRF24L01_SetTxRxMode(RX_EN);
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NRF24L01_FlushRx();
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NRF24L01_WriteReg(NRF24L01_00_CONFIG, (0 << NRF24L01_00_EN_CRC) // switch to RX mode and disable CRC
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| (1 << NRF24L01_00_CRCO)
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| (1 << NRF24L01_00_PWR_UP)
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| (1 << NRF24L01_00_PRIM_RX));
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}
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if( NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR))
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{ // RX fifo data ready
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if(NRF24L01_ReadReg(NRF24L01_09_CD))
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{
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NRF24L01_ReadPayload(packet,XN297DUMP_MAX_PACKET_LEN);
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if(XN297Dump_process_packet())
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{ // valid crc found
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debug("\r\n\r\nPacket detected: bitrate=");
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switch(bitrate)
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{
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case XN297DUMP_250K:
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NRF24L01_SetBitrate(NRF24L01_BR_250K);
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debug("250K");
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break;
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case XN297DUMP_2M:
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NRF24L01_SetBitrate(NRF24L01_BR_2M);
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debug("2M");
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break;
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default:
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NRF24L01_SetBitrate(NRF24L01_BR_1M);
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debug("1M");
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break;
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}
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debug(" C=%d ", hopping_frequency_no);
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if(enhanced)
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{
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debug("Enhanced ");
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debug("pid=%d ",pid);
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if(ack) debug("ack ");
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}
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debug("S=%c A=",scramble?'Y':'N');
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for(uint8_t i=0; i<address_length; i++)
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{
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debug(" %02X",packet[i]);
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rx_tx_addr[i]=packet[i];
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}
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debug(" P(%d)=",packet_length-address_length);
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for(uint8_t i=address_length; i<packet_length; i++)
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{
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debug(" %02X",packet[i]);
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}
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packet_length=packet_length-address_length;
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debugln("\r\n--------------------------------");
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phase=2;
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debugln("Identifying all RF channels in use.");
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bind_counter=0;
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hopping_frequency_no=0;
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rf_ch_num=0;
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packet_count=0;
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debug("Trying RF channel: 0");
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NRF24L01_Initialize();
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XN297_SetScrambledMode(scramble?XN297_SCRAMBLED:XN297_UNSCRAMBLED);
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XN297_SetTXAddr(rx_tx_addr,address_length);
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XN297_SetRXAddr(rx_tx_addr,address_length);
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NRF24L01_FlushRx();
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NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
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NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00); // No Auto Acknowldgement on all data pipes
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NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01); // Enable data pipe 0 only
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NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0, packet_length + 2 + (enhanced?2:0) ); // 2 extra bytes for xn297 crc
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NRF24L01_WriteReg(NRF24L01_05_RF_CH,0);
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NRF24L01_SetTxRxMode(TXRX_OFF);
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NRF24L01_FlushRx();
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NRF24L01_SetTxRxMode(RX_EN);
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XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP) | _BV(NRF24L01_00_PRIM_RX));
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}
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}
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}
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break;
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case 2:
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if(bind_counter>XN297DUMP_PERIOD_SCAN)
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{ // Scan frequencies
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hopping_frequency_no++;
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bind_counter=0;
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if(packet_count && packet_count<=5)
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debug("\r\nTrying RF channel: ");
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packet_count=0;
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if(hopping_frequency_no>XN297DUMP_MAX_RF_CHANNEL)
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{
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debug("\r\n\r\n%d RF channels identified:",rf_ch_num);
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for(uint8_t i=0;i<rf_ch_num;i++)
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debug(" %d",hopping_frequency[i]);
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time_rf=(uint32_t*)malloc(rf_ch_num*sizeof(time));
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if(time_rf==NULL)
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{
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debugln("\r\nCan't allocate memory for next phase!!!");
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phase=0;
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break;
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}
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debugln("\r\n--------------------------------");
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debugln("Identifying RF channels order.");
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hopping_frequency_no=1;
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phase=3;
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packet_count=0;
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bind_counter=0;
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debugln("Time between CH:%d and CH:%d",hopping_frequency[0],hopping_frequency[hopping_frequency_no]);
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time_rf[hopping_frequency_no]=-1;
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NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency[0]);
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uint16_t timeL=TCNT1;
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if(TIMER2_BASE->SR & TIMER_SR_UIF)
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{//timer just rolled over...
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XN297Dump_overflow();
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timeL=0;
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}
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time=(timeH<<16)+timeL;
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NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
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NRF24L01_SetTxRxMode(TXRX_OFF);
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|
NRF24L01_SetTxRxMode(RX_EN);
|
|
NRF24L01_FlushRx();
|
|
NRF24L01_WriteReg(NRF24L01_00_CONFIG, (0 << NRF24L01_00_EN_CRC) // switch to RX mode and disable CRC
|
|
| (1 << NRF24L01_00_CRCO)
|
|
| (1 << NRF24L01_00_PWR_UP)
|
|
| (1 << NRF24L01_00_PRIM_RX));
|
|
XN297Dump_overflow();
|
|
break;
|
|
}
|
|
debug(",%d",hopping_frequency_no);
|
|
NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency_no);
|
|
// switch to RX mode
|
|
NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
|
|
NRF24L01_SetTxRxMode(TXRX_OFF);
|
|
NRF24L01_SetTxRxMode(RX_EN);
|
|
NRF24L01_FlushRx();
|
|
XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP) | _BV(NRF24L01_00_PRIM_RX));
|
|
}
|
|
if( NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR))
|
|
{ // RX fifo data ready
|
|
if(NRF24L01_ReadReg(NRF24L01_09_CD))
|
|
{
|
|
boolean res;
|
|
if(enhanced)
|
|
res=XN297_ReadEnhancedPayload(packet, packet_length);
|
|
else
|
|
res=XN297_ReadPayload(packet, packet_length);
|
|
if(res)
|
|
{ // valid crc found
|
|
XN297Dump_overflow();
|
|
uint16_t timeL=TCNT1;
|
|
if(TIMER2_BASE->SR & TIMER_SR_UIF)
|
|
{//timer just rolled over...
|
|
XN297Dump_overflow();
|
|
timeL=0;
|
|
}
|
|
if(packet_count==0)
|
|
{//save channel
|
|
hopping_frequency[rf_ch_num]=hopping_frequency_no;
|
|
rf_ch_num++;
|
|
time=0;
|
|
}
|
|
else
|
|
time=(timeH<<16)+timeL-time;
|
|
debug("\r\nRX on channel: %d, Time: %5luus P:",hopping_frequency_no, time>>1);
|
|
time=(timeH<<16)+timeL;
|
|
for(uint8_t i=0;i<packet_length;i++)
|
|
debug(" %02X",packet[i]);
|
|
packet_count++;
|
|
if(packet_count>5)
|
|
{//change channel
|
|
bind_counter=XN297DUMP_PERIOD_SCAN+1;
|
|
debug("\r\nTrying RF channel: ");
|
|
}
|
|
}
|
|
}
|
|
// restart RX mode
|
|
NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
|
|
NRF24L01_SetTxRxMode(TXRX_OFF);
|
|
NRF24L01_SetTxRxMode(RX_EN);
|
|
NRF24L01_FlushRx();
|
|
XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP) | _BV(NRF24L01_00_PRIM_RX));
|
|
}
|
|
XN297Dump_overflow();
|
|
break;
|
|
case 3:
|
|
if(bind_counter>XN297DUMP_PERIOD_SCAN)
|
|
{ // Scan frequencies
|
|
hopping_frequency_no++;
|
|
bind_counter=0;
|
|
if(hopping_frequency_no>=rf_ch_num)
|
|
{
|
|
uint8_t next=0;
|
|
debugln("\r\n\r\nChannel order:");
|
|
debugln("%d: 0us",hopping_frequency[0]);
|
|
uint8_t i=1;
|
|
do
|
|
{
|
|
time=time_rf[i];
|
|
if(time!=-1)
|
|
{
|
|
next=i;
|
|
for(uint8_t j=2;j<rf_ch_num;j++)
|
|
if(time>time_rf[j])
|
|
{
|
|
next=j;
|
|
time=time_rf[j];
|
|
}
|
|
time_rf[next]=-1;
|
|
debugln("%d: %5luus",hopping_frequency[next],time);
|
|
i=0;
|
|
}
|
|
i++;
|
|
}
|
|
while(i<rf_ch_num);
|
|
free(time_rf);
|
|
debugln("\r\n--------------------------------");
|
|
debugln("Identifying Sticks and features.");
|
|
phase=4;
|
|
hopping_frequency_no=0;
|
|
break;
|
|
}
|
|
debugln("Time between CH:%d and CH:%d",hopping_frequency[0],hopping_frequency[hopping_frequency_no]);
|
|
time_rf[hopping_frequency_no]=-1;
|
|
NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency[0]);
|
|
uint16_t timeL=TCNT1;
|
|
if(TIMER2_BASE->SR & TIMER_SR_UIF)
|
|
{//timer just rolled over...
|
|
XN297Dump_overflow();
|
|
timeL=0;
|
|
}
|
|
time=(timeH<<16)+timeL;
|
|
// switch to RX mode
|
|
NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
|
|
NRF24L01_SetTxRxMode(TXRX_OFF);
|
|
NRF24L01_SetTxRxMode(RX_EN);
|
|
NRF24L01_FlushRx();
|
|
XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP) | _BV(NRF24L01_00_PRIM_RX));
|
|
}
|
|
if( NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR))
|
|
{ // RX fifo data ready
|
|
if(NRF24L01_ReadReg(NRF24L01_09_CD))
|
|
{
|
|
boolean res;
|
|
if(enhanced)
|
|
res=XN297_ReadEnhancedPayload(packet, packet_length);
|
|
else
|
|
res=XN297_ReadPayload(packet, packet_length);
|
|
if(res)
|
|
{ // valid crc found
|
|
XN297Dump_overflow();
|
|
uint16_t timeL=TCNT1;
|
|
if(TIMER2_BASE->SR & TIMER_SR_UIF)
|
|
{//timer just rolled over...
|
|
XN297Dump_overflow();
|
|
timeL=0;
|
|
}
|
|
if(packet_count&1)
|
|
{
|
|
time=(timeH<<16)+timeL-time;
|
|
if(time_rf[hopping_frequency_no] > (time>>1))
|
|
time_rf[hopping_frequency_no]=time>>1;
|
|
debugln("Time: %5luus", time>>1);
|
|
NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency[0]);
|
|
}
|
|
else
|
|
{
|
|
time=(timeH<<16)+timeL;
|
|
NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency[hopping_frequency_no]);
|
|
}
|
|
packet_count++;
|
|
if(packet_count>6)
|
|
{
|
|
bind_counter=XN297DUMP_PERIOD_SCAN+1;
|
|
packet_count=0;
|
|
}
|
|
}
|
|
}
|
|
// restart RX mode
|
|
NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
|
|
NRF24L01_SetTxRxMode(TXRX_OFF);
|
|
NRF24L01_SetTxRxMode(RX_EN);
|
|
NRF24L01_FlushRx();
|
|
XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP) | _BV(NRF24L01_00_PRIM_RX));
|
|
}
|
|
XN297Dump_overflow();
|
|
break;
|
|
case 4:
|
|
if( NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR))
|
|
{ // RX fifo data ready
|
|
if(NRF24L01_ReadReg(NRF24L01_09_CD))
|
|
{
|
|
boolean res;
|
|
if(enhanced)
|
|
res=XN297_ReadEnhancedPayload(packet, packet_length);
|
|
else
|
|
res=XN297_ReadPayload(packet, packet_length);
|
|
if(res)
|
|
{ // valid crc found
|
|
if(memcmp(packet_in,packet,packet_length))
|
|
{
|
|
debug("P:");
|
|
for(uint8_t i=0;i<packet_length;i++)
|
|
debug(" %02X",packet[i]);
|
|
debugln("");
|
|
memcpy(packet_in,packet,packet_length);
|
|
}
|
|
}
|
|
}
|
|
// restart RX mode
|
|
NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
|
|
NRF24L01_SetTxRxMode(TXRX_OFF);
|
|
NRF24L01_SetTxRxMode(RX_EN);
|
|
NRF24L01_FlushRx();
|
|
XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP) | _BV(NRF24L01_00_PRIM_RX));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
bind_counter++;
|
|
if(IS_RX_FLAG_on) // Let the radio update the protocol
|
|
{
|
|
if(Update_All()) return 10000; // New protocol selected
|
|
if(prev_option!=option && sub_protocol<XN297DUMP_AUTO)
|
|
{ // option has changed
|
|
hopping_frequency_no=option;
|
|
prev_option=option;
|
|
}
|
|
}
|
|
XN297Dump_overflow();
|
|
}
|
|
return 100;
|
|
}
|
|
|
|
uint16_t initXN297Dump(void)
|
|
{
|
|
BIND_DONE;
|
|
if(sub_protocol<XN297DUMP_AUTO)
|
|
bitrate=sub_protocol;
|
|
else
|
|
bitrate=0;
|
|
address_length=RX_num;
|
|
if(address_length<3||address_length>5)
|
|
address_length=5; //default
|
|
XN297Dump_init();
|
|
bind_counter=0;
|
|
rf_ch_num=0xFF;
|
|
prev_option=option^0x55;
|
|
phase=0; // init
|
|
return XN297DUMP_INITIAL_WAIT;
|
|
}
|
|
|
|
#endif
|