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Multiprotocol/HOTT_cc2500.ino
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214
Multiprotocol/HOTT_cc2500.ino
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/*
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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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#if defined(HOTT_CC2500_INO)
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#include "iface_cc2500.h"
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#define HOTT_COARSE 0
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#define HOTT_TX_PACKET_LEN 50
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#define HOTT_RX_PACKET_LEN 22
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#define HOTT_PACKET_PERIOD 10000
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enum {
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HOTT_START = 0x00,
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HOTT_CAL = 0x01,
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HOTT_DATA1 = 0x02,
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HOTT_RX1 = 0x03,
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HOTT_RX2 = 0x04,
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};
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#define HOTT_FREQ0_VAL 0x6E
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// Some important initialization parameters, all others are either default,
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// or not important in the context of transmitter
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// FIFOTHR 00
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// SYNC1 D3
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// SYNC0 91
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// PKTLEN 32 - Packet length, 50 bytes
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// PKTCTRL1 04 - APPEND_STATUS on=RSSI+LQI, all other are receive parameters - irrelevant
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// PKTCTRL0 44 - whitening, use FIFO, use CRC, fixed packet length
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// ADDR 00
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// CHANNR 10
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// FSCTRL1 09 - IF
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// FSCTRL0 00 - zero freq offset
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// FREQ2 5C - synthesizer frequencyfor 26MHz crystal
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// FREQ1 6C
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// FREQ0 B9
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// MDMCFG4 2D -
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// MDMCFG3 3B -
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// MDMCFG2 73 - disable DC blocking, MSK, no Manchester code, 32 bits sync word
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// MDMCFG1 A3 - FEC enable, 4 preamble bytes, CHANSPC_E - 03
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// MDMCFG0 AA - CHANSPC_M - AA
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// DEVIATN 47 -
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// MCSM2 07 -
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// MCSM1 00 - always use CCA, go to IDLE when done
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// MCSM0 08 - disable autocalibration, PO_TIMEOUT - 64, no pin radio control, no forcing XTAL to stay in SLEEP
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// FOCCFG 1D
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const PROGMEM uint8_t HOTT_init_values[] = {
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/* 00 */ 0x2F, 0x2E, 0x2F, 0x00, 0xD3, 0x91, 0x32, 0x04,
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/* 08 */ 0x44, 0x00, 0x00, 0x09, 0x00, 0x5C, 0x6C, HOTT_FREQ0_VAL + HOTT_COARSE,
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/* 10 */ 0x2D, 0x3B, 0x73, 0xA3, 0xAA, 0x47, 0x07, 0x00, //original 0x17=0
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/* 18 */ 0x08, 0x1D, 0x1C, 0xC7, 0x09, 0xF0, 0x87, 0x6B,
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/* 20 */ 0xF0, 0xB6, 0x10, 0xEA, 0x0A, 0x00, 0x11
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};
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static void __attribute__((unused)) HOTT_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(&HOTT_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)) HOTT_tune_chan()
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{
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CC2500_Strobe(CC2500_SIDLE);
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CC2500_WriteReg(CC2500_0A_CHANNR, (rf_ch_num+1)*3);
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CC2500_Strobe(CC2500_SCAL);
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}
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static void __attribute__((unused)) HOTT_tune_chan_fast()
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{
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CC2500_Strobe(CC2500_SIDLE);
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CC2500_WriteReg(CC2500_0A_CHANNR, (rf_ch_num+1)*3);
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CC2500_WriteReg(CC2500_25_FSCAL1, calData[rf_ch_num]);
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}
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static void __attribute__((unused)) HOTT_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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CC2500_WriteReg(CC2500_0F_FREQ0, HOTT_FREQ0_VAL + HOTT_COARSE);
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prev_option = option ;
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phase = HOTT_START; // Restart the tune process if option is changed to get good tuned values
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}
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}
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uint8_t HOTT_hop[75]= { 48, 37, 16, 62, 9, 50, 42, 22, 68, 0, 55, 35, 21, 74, 1, 56, 31, 20, 70, 11, 45, 32, 24, 71, 8, 54, 38, 26, 61, 13, 53, 30, 15, 65, 7, 52, 34, 28, 60, 3, 47, 39, 18, 69, 2, 49, 44, 23, 72, 5, 51, 43, 19, 64, 12, 46, 33, 17, 67, 6, 58, 36, 29, 73, 14, 57, 41, 25, 63, 4, 59, 40, 27, 66, 10 };
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uint16_t HOTT_hop_val = 0xC06B;
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// Channel values are PPM*2
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static void __attribute__((unused)) HOTT_data_packet()
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{
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packet[2] = hopping_frequency_no;
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packet[3] = 0x00; // unknown, may be for additional channels
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for(uint8_t i=4;i<28;i+=2)
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{
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uint16_t val=Channel_data[(i-4)>>1];
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val=(((val<<2)+val)>>2)+860*2; //value range 860<->2140 *2 <-> -125%<->+125%
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packet[i] = val;
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packet[i+1] = val>>8;
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}
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packet[28] = 0x8C; // unknown
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packet[29] = 0x02; // unknown
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CC2500_SetTxRxMode(TX_EN);
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CC2500_SetPower();
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CC2500_WriteReg(CC2500_06_PKTLEN, 0x32);
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CC2500_WriteData(packet, HOTT_TX_PACKET_LEN);
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#if 0
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debug("P:");
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for(uint8_t i=0;i<HOTT_TX_PACKET_LEN;i++)
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debug(" %02X",packet[i]);
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debugln("");
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#endif
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hopping_frequency_no++;
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hopping_frequency_no %= 75;
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rf_ch_num=HOTT_hop[hopping_frequency_no];
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}
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uint16_t ReadHOTT()
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{
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switch(phase)
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{
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case HOTT_START:
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rf_ch_num = 0;
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HOTT_tune_chan();
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phase = HOTT_CAL;
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return 2000;
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case HOTT_CAL:
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calData[rf_ch_num]=CC2500_ReadReg(CC2500_25_FSCAL1);
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if (++rf_ch_num < 75)
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HOTT_tune_chan();
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else
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{
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hopping_frequency_no = 0;
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rf_ch_num=HOTT_hop[hopping_frequency_no];
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counter = 0;
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phase = HOTT_DATA1;
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}
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return 2000;
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/* Work cycle: 10ms */
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case HOTT_DATA1:
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//TX
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telemetry_set_input_sync(10000);
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HOTT_tune_freq();
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HOTT_tune_chan_fast();
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HOTT_data_packet();
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phase = HOTT_RX1;
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return 4500;
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case HOTT_RX1:
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//RX
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CC2500_SetTxRxMode(RX_EN);
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CC2500_WriteReg(CC2500_06_PKTLEN, HOTT_RX_PACKET_LEN);
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CC2500_Strobe(CC2500_SRX);
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phase = HOTT_RX2;
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return 4500;
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case HOTT_RX2:
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//Telemetry
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len = CC2500_ReadReg(CC2500_3B_RXBYTES | CC2500_READ_BURST) & 0x7F;
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if (len==HOTT_RX_PACKET_LEN+2)
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{
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CC2500_ReadData(packet_in, len);
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debug("T:");
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for(uint8_t i=0;i<HOTT_RX_PACKET_LEN;i++)
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debug(" %02X", packet_in[i]);
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debugln("");
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}
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CC2500_Strobe(CC2500_SFRX); //Flush the RXFIFO
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phase=HOTT_DATA1;
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return 1000;
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}
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return 0;
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}
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static void __attribute__((unused)) HOTT_init()
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{
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packet[0] = HOTT_hop_val;
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packet[1] = HOTT_hop_val>>8;
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memcpy(&packet[30],"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x07\x7C\x94\x00\x0C\x50\x4D\xF2\x00\x00\xB1",20); //unknown
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}
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uint16_t initHOTT()
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{
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BIND_DONE; // Not a TX bind protocol
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HOTT_init();
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HOTT_rf_init();
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phase = HOTT_START;
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return 10000;
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}
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#endif
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@ -19,7 +19,7 @@
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#define VERSION_MAJOR 1
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#define VERSION_MINOR 3
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#define VERSION_REVISION 0
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#define VERSION_PATCH_LEVEL 32
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#define VERSION_PATCH_LEVEL 33
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//******************
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// Protocols
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@ -73,7 +73,7 @@ uint32_t blink=0,last_signal=0;
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//
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uint16_t counter;
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uint8_t channel;
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uint8_t packet[40];
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uint8_t packet[50];
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#define NUM_CHN 16
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// Servo data
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@ -113,6 +113,8 @@ uint8_t num_ch;
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#ifdef CC2500_INSTALLED
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#ifdef SCANNER_CC2500_INO
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uint8_t calData[255];
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#elif defined(HOTT_CC2500_IN0)
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uint8_t calData[75];
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#else
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uint8_t calData[50];
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#endif
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