mirror of
https://github.com/pascallanger/DIY-Multiprotocol-TX-Module.git
synced 2025-02-04 18:38:13 +00:00
336 lines
12 KiB
C++
336 lines
12 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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// Radiolink surface protocol. TXs: RC4GS,RC6GS. Compatible RXs:R7FG(Std),R6FG,R6F,R8EF,R8FM,R8F,R4FGM
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#if defined(RLINK_CC2500_INO)
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#include "iface_cc2500.h"
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//#define RLINK_FORCE_ID
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#define RLINK_TX_PACKET_LEN 33
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#define RLINK_RX_PACKET_LEN 15
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#define RLINK_TX_ID_LEN 4
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#define RLINK_HOP 16
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enum {
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RLINK_DATA = 0x00,
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RLINK_RX1 = 0x01,
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RLINK_RX2 = 0x02,
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};
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const PROGMEM uint8_t RLINK_hopping[][8] = {
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/* 4C494E4B */ { 0xBC, 0x5A, 0x70, 0x4E, 0xDF, 0x32, 0x16, 0x89 },
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/* 4D494E4B */ { 0x4C, 0xF3, 0xEA, 0x5B, 0x62, 0x9D, 0x01, 0x87 },
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/* 4E494E4B */ { 0x86, 0xEA, 0xD0, 0xC9, 0x2B, 0x53, 0x7F, 0x41 },
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/* 4F494E4B */ { 0xAC, 0x91, 0x7D, 0x48, 0xE0, 0xB5, 0x32, 0xF6 },
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/* 50494E4B */ { 0xD6, 0x7C, 0xA4, 0x93, 0x5F, 0xE1, 0x02, 0xB8 },
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/* 51494E4B */ { 0xED, 0x04, 0x73, 0xC8, 0x56, 0xB9, 0x1F, 0xA2 },
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/* 52494E4B */ { 0xA7, 0xF0, 0x36, 0xB2, 0x95, 0x4E, 0x1C, 0xD8 },
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/* 53494E4B */ { 0x76, 0x8B, 0xA0, 0x3E, 0x51, 0x4C, 0x9D, 0x2F },
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/* 54494E4B */ { 0x07, 0x23, 0x16, 0xFD, 0xC9, 0x5B, 0x84, 0xAE },
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/* 55494E4B */ { 0xD3, 0xA0, 0x69, 0xBF, 0x12, 0x8C, 0x4E, 0x57 },
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/* 56494E4B */ { 0xA6, 0xBE, 0x91, 0xD3, 0x7C, 0x4F, 0x82, 0x50 },
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/* 57494E4B */ { 0x91, 0xDA, 0xBC, 0x75, 0x82, 0x36, 0x4E, 0xF0 },
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/* 58494E4B */ { 0x9A, 0x27, 0x5C, 0xF4, 0xD8, 0xB0, 0x36, 0xE1 },
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/* 59494E4B */ { 0x92, 0xF1, 0x34, 0xA7, 0x5B, 0x0C, 0xED, 0x86 },
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/* 5A494E4B */ { 0x8C, 0x2B, 0x51, 0xF9, 0x3E, 0x4A, 0x67, 0xD0 },
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/* 5B494E4B */ { 0x5E, 0x3D, 0x67, 0x9B, 0xA2, 0x84, 0xFC, 0x01 },
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/* 5C494E4B */ { 0xF9, 0x35, 0xBD, 0x78, 0x26, 0x1C, 0x0E, 0xA4 },
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/* 5D494E4B */ { 0xD9, 0x7B, 0x48, 0x0E, 0x2A, 0xCF, 0x13, 0x65 },
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/* 5E494E4B */ { 0x07, 0xE4, 0xF9, 0x8A, 0x3C, 0x21, 0xB5, 0xD6 },
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/* 5F494E4B */ { 0xEB, 0xFA, 0x29, 0xD1, 0x54, 0x3C, 0x07, 0x86 },
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/* 60494E4B */ { 0xDF, 0xCE, 0x0A, 0x32, 0x71, 0x5B, 0x96, 0x48 },
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/* 61494E4B */ { 0x19, 0x86, 0xF5, 0x3A, 0x27, 0xDC, 0x0E, 0xB4 },
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/* 62494E4B */ { 0xF8, 0x47, 0x9C, 0xE0, 0x2D, 0xBA, 0x15, 0x36 },
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/* 63494E4B */ { 0xED, 0x78, 0x01, 0xA3, 0x2B, 0x6C, 0x45, 0xF9 },
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/* 64494E4B */ { 0xE0, 0xA2, 0xD4, 0x6B, 0xF5, 0x18, 0x3C, 0x79 },
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/* 65494E4B */ { 0x26, 0x90, 0x8B, 0x5D, 0x31, 0xCF, 0xE7, 0x4A },
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/* 66494E4B */ { 0x7B, 0x12, 0xA8, 0x4F, 0xC0, 0x65, 0xD9, 0x3E },
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/* 67494E4B */ { 0x35, 0xA2, 0x14, 0xBE, 0x06, 0x7D, 0x98, 0xFC },
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/* 68494E4B */ { 0xD2, 0xA9, 0x7E, 0x40, 0x6F, 0x83, 0x5C, 0xB1 },
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/* 69494E4B */ { 0xE5, 0xB9, 0xC1, 0x04, 0x83, 0x27, 0xA6, 0xFD },
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/* 6A494E4B */ { 0x8E, 0x0C, 0x4A, 0x51, 0xFB, 0x63, 0x92, 0x7D },
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/* 6B494E4B */ { 0xC7, 0x1D, 0x02, 0x93, 0x45, 0xF8, 0xA6, 0xBE },
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/* 6C494E4B */ { 0xC1, 0x64, 0x59, 0x0A, 0x7D, 0x3F, 0x28, 0xEB },
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/* 6D494E4B */ { 0xEF, 0x75, 0xAB, 0x94, 0xD2, 0x83, 0x1C, 0x60 },
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/* 6E494E4B */ { 0xA1, 0x20, 0x54, 0x68, 0x9E, 0x7B, 0x3D, 0xFC },
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/* 6F494E4B */ { 0x3E, 0x60, 0x28, 0xFC, 0xDA, 0x45, 0x9B, 0x71 },
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/* 70494E4B */ { 0xB7, 0x0E, 0xA8, 0x23, 0xFC, 0x65, 0x4D, 0x91 },
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/* 71494E4B */ { 0x29, 0x34, 0x51, 0x7C, 0xB8, 0xFD, 0x0E, 0x6A },
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/* 72494E4B */ { 0x1B, 0x06, 0x3C, 0x89, 0xF5, 0x2A, 0x7E, 0xD4 },
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/* 73494E4B */ { 0xF2, 0xC9, 0x63, 0x57, 0x0A, 0xB1, 0x48, 0xDE },
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/* 74494E4B */ { 0x24, 0xAE, 0x0C, 0x19, 0x53, 0x7B, 0xF6, 0x8D },
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/* 75494E4B */ { 0xEC, 0xD8, 0xF2, 0x4B, 0xA3, 0x51, 0x09, 0x76 },
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/* 76494E4B */ { 0x98, 0x71, 0x5E, 0xAD, 0xFC, 0x04, 0x3B, 0x62 },
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/* 77494E4B */ { 0xAE, 0xF6, 0xB7, 0x01, 0x52, 0x34, 0x9D, 0x8C },
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/* 78494E4B */ { 0x69, 0x48, 0xF1, 0x3C, 0xDB, 0x0E, 0x25, 0xA7 },
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/* 79494E4B */ { 0xCF, 0x60, 0x94, 0xAD, 0xB1, 0x82, 0x73, 0xE5 },
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/* 7A494E4B */ { 0xFA, 0xC1, 0xD7, 0xB0, 0x53, 0x92, 0x6E, 0x48 },
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/* 7B494E4B */ { 0xAC, 0x7D, 0xE5, 0x8B, 0x41, 0x96, 0x2F, 0x30 },
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/* 7C494E4B */ { 0xFD, 0xC1, 0xB9, 0x02, 0xE4, 0x87, 0x56, 0x3A },
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/* 7D494E4B */ { 0x30, 0xDA, 0x4F, 0x8E, 0x5C, 0xB9, 0x26, 0x71 },
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/* 7E494E4B */ { 0xDC, 0xF9, 0x57, 0x30, 0x82, 0x1E, 0x6A, 0x4B },
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/* 7F494E4B */ { 0x84, 0x1D, 0x7E, 0x29, 0x3C, 0x65, 0xA0, 0xBF },
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/* 80494E4B */ { 0x01, 0xA3, 0xF6, 0xE2, 0x4C, 0x8B, 0x5D, 0x79 },
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/* 81494E4B */ { 0xA1, 0x32, 0xE7, 0x08, 0x4D, 0x5B, 0x9F, 0x6C },
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/* 82494E4B */ { 0x31, 0x40, 0x67, 0x8F, 0xBA, 0x95, 0x2C, 0xED },
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/* 83494E4B */ { 0x91, 0x76, 0xFA, 0x83, 0x20, 0x4B, 0xEC, 0x5D },
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/* 84494E4B */ { 0xDB, 0x54, 0xC2, 0x61, 0xF0, 0xA9, 0x87, 0x3E },
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/* 85494E4B */ { 0xC0, 0xB4, 0x61, 0xD3, 0x7A, 0x5F, 0x82, 0x9E },
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/* 86494E4B */ { 0xD6, 0xCF, 0x9B, 0x75, 0xE1, 0x42, 0x3A, 0x80 },
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/* 87494E4B */ { 0xFE, 0xA2, 0xB4, 0x9C, 0x10, 0x7D, 0x56, 0x83 },
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/* 88494E4B */ { 0xD2, 0x79, 0x54, 0xEF, 0xC8, 0x0B, 0x36, 0xA1 },
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/* 89494E4B */ { 0x8D, 0xCF, 0x23, 0x64, 0xE5, 0x0B, 0x1A, 0x97 },
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/* 8A494E4B */ { 0x07, 0xC4, 0xEF, 0x9A, 0x61, 0xD8, 0xB3, 0x52 },
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/* 8B494E4B */ { 0x45, 0x6E, 0xBF, 0x8C, 0x9A, 0x2D, 0x31, 0x70 },
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#ifdef RLINK_FORCE_ID
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/* 3A99223A */ { 0x1F, 0x89, 0x25, 0x06, 0x4E, 0xBD, 0x3A, 0xC7 },
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/* FC110D20 */ { 0xBC, 0xFE, 0x59, 0x84, 0x37, 0xA1, 0xD0, 0x62 }
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#endif
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};
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static void __attribute__((unused)) RLINK_load_hopp(uint8_t num)
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{
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uint8_t inc=3*(rx_tx_addr[0]&3);
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for (uint8_t i = 0; i < RLINK_HOP>>1; i++)
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{
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uint8_t val=pgm_read_byte_near(&RLINK_hopping[num][i]);
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hopping_frequency[ i<<1 ]=12*(val>>4 )+inc;
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hopping_frequency[(i<<1)+1]=12*(val&0x0F)+inc;
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}
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// replace one of the channel randomely
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rf_ch_num=random(0xfefefefe)%0x11; // 0x00..0x10
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if(inc==9) inc=6; // frequency exception
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hopping_frequency[rf_ch_num]=12*16+inc;
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}
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static void __attribute__((unused)) RLINK_init()
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{
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// channels order depend on ID and currently unknown so using a table of 64 entries...
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uint8_t id=rx_tx_addr[3]&0x3F;
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memcpy(rx_tx_addr,"\x4C\x49\x4E\x4B",RLINK_TX_ID_LEN);
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rx_tx_addr[0] += id;
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RLINK_load_hopp(id);
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#ifdef RLINK_FORCE_ID
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//surface RC6GS
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memcpy(rx_tx_addr,"\x3A\x99\x22\x3A",RLINK_TX_ID_LEN);
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RLINK_load_hopp(64);
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//air T8FB
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//memcpy(rx_tx_addr,"\xFC\x11\x0D\x20",RLINK_TX_ID_LEN);
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//RLINK_load_hopp(65);
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#endif
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/* debug("ID:");
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for(uint8_t i=0;i<RLINK_TX_ID_LEN;i++)
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debug(" 0x%02X",rx_tx_addr[i]);
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debugln("");
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debug("Hop(%d):", rf_ch_num);
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for(uint8_t i=0;i<RLINK_HOP;i++)
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debug(" 0x%02X",hopping_frequency[i]);
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debugln("");
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*/
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}
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const PROGMEM uint8_t RLINK_init_values[] = {
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/* 00 */ 0x5B, 0x06, 0x5C, 0x07, 0xAB, 0xCD, 0x40, 0x04,
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/* 08 */ 0x45, 0x00, 0x00, 0x06, 0x00, 0x5C, 0x62, 0x76,
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/* 10 */ 0x7A, 0x7F, 0x13, 0x23, 0xF8, 0x44, 0x07, 0x30,
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/* 18 */ 0x18, 0x16, 0x6C, 0x43, 0x40, 0x91, 0x87, 0x6B,
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/* 20 */ 0xF8, 0x56, 0x10, 0xA9, 0x0A, 0x00, 0x11
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};
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static void __attribute__((unused)) RLINK_rf_init()
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{
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CC2500_Strobe(CC2500_SIDLE);
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for (uint8_t i = 0; i < 39; ++i)
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CC2500_WriteReg(i, pgm_read_byte_near(&RLINK_init_values[i]));
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prev_option = option;
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CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
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CC2500_SetTxRxMode(TX_EN);
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CC2500_SetPower();
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}
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static void __attribute__((unused)) RLINK_tune_freq()
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{
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if ( prev_option != option )
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{
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CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
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prev_option = option ;
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}
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}
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static void __attribute__((unused)) RLINK_TIMING_RFSEND_packet()
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{
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static uint32_t pseudo=0;
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uint32_t bits = 0;
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uint8_t bitsavailable = 0;
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uint8_t idx = 6;
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CC2500_Strobe(CC2500_SIDLE);
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// packet length
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packet[0] = RLINK_TX_PACKET_LEN;
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// header
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if(sub_protocol)
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packet[1] = 0x21; //air 0x21 on dump but it looks to support telemetry at least RSSI
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else
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{//surface
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packet[1] = 0x01;
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//radiolink additionnal ID which is working only on a small set of RXs
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//if(RX_num) packet[1] |= ((RX_num+2)<<4)+4; // RX number limited to 10 values, 0 is a wildcard
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}
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if(packet_count>3)
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packet[1] |= 0x02; // 0x02 telemetry request flag
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// ID
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memcpy(&packet[2],rx_tx_addr,RLINK_TX_ID_LEN);
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// pack 16 channels on 11 bits values between 170 and 1876, 1023 middle. The last 8 channels are failsafe values associated to the first 8 values.
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for (uint8_t i = 0; i < 16; i++)
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{
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uint32_t val = convert_channel_16b_nolimit(i,170,1876); // allow extended limits
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if (val & 0x8000)
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val = 0;
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else if (val > 2047)
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val=2047;
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bits |= val << bitsavailable;
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bitsavailable += 11;
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while (bitsavailable >= 8) {
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packet[idx++] = bits & 0xff;
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bits >>= 8;
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bitsavailable -= 8;
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}
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}
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// hop
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pseudo=((pseudo * 0xAA) + 0x03) % 0x7673; // calc next pseudo random value
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CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[pseudo & 0x0F]);
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packet[28]= pseudo;
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packet[29]= pseudo >> 8;
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packet[30]= 0x00; // unknown
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packet[31]= 0x00; // unknown
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packet[32]= rf_ch_num; // index of value changed in the RF table
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// check
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uint8_t sum=0;
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for(uint8_t i=1;i<33;i++)
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sum+=packet[i];
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packet[33]=sum;
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// send packet
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CC2500_WriteData(packet, RLINK_TX_PACKET_LEN+1);
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// packets type
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packet_count++;
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if(packet_count>5) packet_count=0;
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//debugln("C= 0x%02X",hopping_frequency[pseudo & 0x0F]);
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//debug("P=");
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//for(uint8_t i=1;i<RLINK_TX_PACKET_LEN+1;i++)
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// debug(" 0x%02X",packet[i]);
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//debugln("");
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}
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#define RLINK_TIMING_PROTO 20000-100 // -100 for compatibility with R8EF
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#define RLINK_TIMING_RFSEND 10500
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#define RLINK_TIMING_CHECK 2000
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uint16_t RLINK_callback()
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{
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switch(phase)
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{
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case RLINK_DATA:
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#ifdef MULTI_SYNC
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telemetry_set_input_sync(RLINK_TIMING_PROTO);
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#endif
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RLINK_tune_freq();
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RLINK_TIMING_RFSEND_packet();
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#if not defined RLINK_HUB_TELEMETRY
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return RLINK_TIMING_PROTO;
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#else
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if(!(packet[1]&0x02))
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return RLINK_TIMING_PROTO; //Normal packet
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//Telemetry packet
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phase++; // RX1
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return RLINK_TIMING_RFSEND;
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case RLINK_RX1:
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CC2500_Strobe(CC2500_SIDLE);
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CC2500_Strobe(CC2500_SFRX);
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CC2500_SetTxRxMode(RX_EN);
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CC2500_Strobe(CC2500_SRX);
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phase++; // RX2
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return RLINK_TIMING_PROTO-RLINK_TIMING_RFSEND-RLINK_TIMING_CHECK;
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case RLINK_RX2:
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len = CC2500_ReadReg(CC2500_3B_RXBYTES | CC2500_READ_BURST) & 0x7F;
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if (len == RLINK_RX_PACKET_LEN + 1 + 2) //Telemetry frame is 15 bytes + 1 byte for length + 2 bytes for RSSI&LQI&CRC
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{
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//debug("Telem:");
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CC2500_ReadData(packet_in, len);
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if(packet_in[0]==RLINK_RX_PACKET_LEN && (packet_in[len-1] & 0x80) && memcmp(&packet[2],rx_tx_addr,RLINK_TX_ID_LEN)==0 && packet_in[6]==packet[1])
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{//Correct telemetry received: length, CRC, ID and type
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//Debug
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//for(uint8_t i=0;i<len;i++)
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// debug(" %02X",packet_in[i]);
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TX_RSSI = packet_in[len-2];
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if(TX_RSSI >=128)
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TX_RSSI -= 128;
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else
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TX_RSSI += 128;
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RX_RSSI=packet_in[7]; //Should be packet_in[7]-256 but since it's an uint8_t...
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v_lipo1=packet_in[8]<<1; //RX Batt
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v_lipo2=packet_in[9]; //Batt
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telemetry_link=1; //Send telemetry out
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pps_counter++;
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packet_count=0;
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}
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//debugln("");
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}
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if (millis() - pps_timer >= 2000)
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{//1 telemetry packet every 100ms
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pps_timer = millis();
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if(pps_counter<20)
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pps_counter*=5;
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else
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pps_counter=100;
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debugln("%d pps", pps_counter);
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TX_LQI = pps_counter; //0..100%
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pps_counter = 0;
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}
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CC2500_SetTxRxMode(TX_EN);
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phase=RLINK_DATA; // DATA
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return RLINK_TIMING_CHECK;
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#endif
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}
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return 0;
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}
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uint16_t initRLINK()
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{
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BIND_DONE; // Not a TX bind protocol
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RLINK_init();
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RLINK_rf_init();
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packet_count = 0;
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phase = RLINK_DATA;
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return 10000;
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}
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#endif |