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- #include <cc1101_regs.h>
- /* ========================== DATA RATE SETTINGS ===============================
- *
- * This is how to configure registers MDMCFG3 and MDMCFG4.
- *
- * MDMCFG3 is the data rate mantissa, the exponent is in MDMCFG4,
- * last 4 bits of the register.
- *
- * The rate (assuming 26Mhz crystal) is calculated as follows:
- *
- * ((256+MDMCFG3)*(2^MDMCFG4:0..3bits)) / 2^28 * 26000000.
- *
- * For instance for the default values of MDMCFG3[0..3] (34) and MDMCFG4 (12):
- *
- * ((256+34)*(2^12))/(2^28)*26000000 = 115051.2688000000, that is 115KBaud
- *
- * ============================ BANDWIDTH FILTER ===============================
- *
- * Bandwidth filter setting:
- *
- * BW filter as just 16 possibilities depending on how the first nibble
- * (first 4 bits) of the MDMCFG4 bits are set. Instead of providing the
- * formula, it is simpler to show all the values of the nibble and the
- * corresponding bandwidth filter.
- *
- * 0 812khz
- * 1 650khz
- * 2 541khz
- * 3 464khz
- * 4 406khz
- * 5 325khz
- * 6 270khz
- * 7 232khz
- * 8 203khz
- * 9 162khz
- * a 135khz
- * b 116khz
- * c 102khz
- * d 82 khz
- * e 68 khz
- * f 58 khz
- *
- * ============================== FSK DEVIATION ================================
- *
- * FSK deviation is controlled by the DEVIATION register. In Ruby:
- *
- * dev = (26000000.0/2**17)*(8+(deviation&7))*(2**(deviation>>4&7))
- *
- * deviation&7 (last three bits) is the deviation mantissa, while
- * deviation>>4&7 (bits 6,5,4) are the exponent.
- *
- * Deviations values according to certain configuration of DEVIATION:
- *
- * 0x04 -> 2.380371 kHz
- * 0x24 -> 9.521484 kHz
- * 0x34 -> 19.042969 Khz
- * 0x40 -> 25.390625 Khz
- * 0x43 -> 34.912109 Khz
- * 0x45 -> 41.259765 Khz
- * 0x47 -> 47.607422 kHz
- */
- /* 20 KBaud, 2FSK, 28.56 kHz deviation, 325 Khz bandwidth filter. */
- static uint8_t protoview_subghz_tpms1_fsk_async_regs[][2] = {
- /* GPIO GD0 */
- {CC1101_IOCFG0, 0x0D}, // GD0 as async serial data output/input
- /* Frequency Synthesizer Control */
- {CC1101_FSCTRL1, 0x06}, // IF = (26*10^6) / (2^10) * 0x06 = 152343.75Hz
- /* Packet engine */
- {CC1101_PKTCTRL0, 0x32}, // Async, continious, no whitening
- {CC1101_PKTCTRL1, 0x04},
- // // Modem Configuration
- {CC1101_MDMCFG0, 0x00},
- {CC1101_MDMCFG1, 0x02},
- {CC1101_MDMCFG2,
- 0x04}, // Format 2-FSK/FM, No preamble/sync, Disable (current optimized). Other code reading TPMS uses GFSK, but should be the same when in RX mode.
- {CC1101_MDMCFG3, 0x93}, // Data rate is 20kBaud
- {CC1101_MDMCFG4, 0x59}, // Rx bandwidth filter is 325 kHz
- {CC1101_DEVIATN, 0x41}, // Deviation 28.56 kHz
- /* Main Radio Control State Machine */
- {CC1101_MCSM0, 0x18}, // Autocalibrate on idle-to-rx/tx, PO_TIMEOUT is 64 cycles(149-155us)
- /* Frequency Offset Compensation Configuration */
- {CC1101_FOCCFG,
- 0x16}, // no frequency offset compensation, POST_K same as PRE_K, PRE_K is 4K, GATE is off
- /* Automatic Gain Control */
- {CC1101_AGCCTRL0,
- 0x91}, //10 - Medium hysteresis, medium asymmetric dead zone, medium gain ; 01 - 16 samples agc; 00 - Normal AGC, 01 - 8dB boundary
- {CC1101_AGCCTRL1,
- 0x00}, // 0; 0 - LNA 2 gain is decreased to minimum before decreasing LNA gain; 00 - Relative carrier sense threshold disabled; 0000 - RSSI to MAIN_TARGET
- {CC1101_AGCCTRL2, 0x07}, // 00 - DVGA all; 000 - MAX LNA+LNA2; 111 - MAIN_TARGET 42 dB
- /* Wake on radio and timeouts control */
- {CC1101_WORCTRL, 0xFB}, // WOR_RES is 2^15 periods (0.91 - 0.94 s) 16.5 - 17.2 hours
- /* Frontend configuration */
- {CC1101_FREND0, 0x10}, // Adjusts current TX LO buffer
- {CC1101_FREND1, 0x56},
- /* End */
- {0, 0},
- /* CC1101 2FSK PATABLE. */
- {0xC0, 0},
- {0, 0},
- {0, 0},
- {0, 0}};
- /* This is like the default Flipper OOK 640Khz bandwidth preset, but
- * the bandwidth is changed to 10kBaud to accomodate TPMS frequency. */
- static const uint8_t protoview_subghz_tpms2_ook_async_regs[][2] = {
- /* GPIO GD0 */
- {CC1101_IOCFG0, 0x0D}, // GD0 as async serial data output/input
- /* FIFO and internals */
- {CC1101_FIFOTHR, 0x07}, // The only important bit is ADC_RETENTION
- /* Packet engine */
- {CC1101_PKTCTRL0, 0x32}, // Async, continious, no whitening
- /* Frequency Synthesizer Control */
- {CC1101_FSCTRL1, 0x06}, // IF = (26*10^6) / (2^10) * 0x06 = 152343.75Hz
- // Modem Configuration
- {CC1101_MDMCFG0, 0x00}, // Channel spacing is 25kHz
- {CC1101_MDMCFG1, 0x00}, // Channel spacing is 25kHz
- {CC1101_MDMCFG2, 0x30}, // Format ASK/OOK, No preamble/sync
- {CC1101_MDMCFG3, 0x93}, // Data rate is 10kBaud
- {CC1101_MDMCFG4, 0x18}, // Rx BW filter is 650.000kHz
- /* Main Radio Control State Machine */
- {CC1101_MCSM0, 0x18}, // Autocalibrate on idle-to-rx/tx, PO_TIMEOUT is 64 cycles(149-155us)
- /* Frequency Offset Compensation Configuration */
- {CC1101_FOCCFG,
- 0x18}, // no frequency offset compensation, POST_K same as PRE_K, PRE_K is 4K, GATE is off
- /* Automatic Gain Control */
- {CC1101_AGCCTRL0,
- 0x91}, // 10 - Medium hysteresis, medium asymmetric dead zone, medium gain ; 01 - 16 samples agc; 00 - Normal AGC, 01 - 8dB boundary
- {CC1101_AGCCTRL1,
- 0x0}, // 0; 0 - LNA 2 gain is decreased to minimum before decreasing LNA gain; 00 - Relative carrier sense threshold disabled; 0000 - RSSI to MAIN_TARGET
- {CC1101_AGCCTRL2, 0x07}, // 00 - DVGA all; 000 - MAX LNA+LNA2; 111 - MAIN_TARGET 42 dB
- /* Wake on radio and timeouts control */
- {CC1101_WORCTRL, 0xFB}, // WOR_RES is 2^15 periods (0.91 - 0.94 s) 16.5 - 17.2 hours
- /* Frontend configuration */
- {CC1101_FREND0, 0x11}, // Adjusts current TX LO buffer + high is PATABLE[1]
- {CC1101_FREND1, 0xB6}, //
- /* End */
- {0, 0},
- /* CC1101 OOK PATABLE. */
- {0, 0xC0},
- {0, 0},
- {0, 0},
- {0, 0}};
- /* GFSK 19k dev, 325 Khz filter, 20kBaud. Different AGI settings.
- * Works well with Toyota. */
- static uint8_t protoview_subghz_tpms3_gfsk_async_regs[][2] = {
- /* GPIO GD0 */
- {CC1101_IOCFG0, 0x0D}, // GD0 as async serial data output/input
- /* Frequency Synthesizer Control */
- {CC1101_FSCTRL1, 0x06}, // IF = (26*10^6) / (2^10) * 0x06 = 152343.75Hz
- /* Packet engine */
- {CC1101_PKTCTRL0, 0x32}, // Async, continious, no whitening
- {CC1101_PKTCTRL1, 0x04},
- // // Modem Configuration
- {CC1101_MDMCFG0, 0x00},
- {CC1101_MDMCFG1, 0x02}, // 2 is the channel spacing exponet: not used
- {CC1101_MDMCFG2, 0x10}, // GFSK without any other check
- {CC1101_MDMCFG3, 0x93}, // Data rate is 20kBaud
- {CC1101_MDMCFG4, 0x59}, // Rx bandwidth filter is 325 kHz
- {CC1101_DEVIATN, 0x34}, // Deviation 19.04 Khz.
- /* Main Radio Control State Machine */
- {CC1101_MCSM0, 0x18}, // Autocalibrate on idle-to-rx/tx, PO_TIMEOUT is 64 cycles(149-155us)
- /* Frequency Offset Compensation Configuration */
- {CC1101_FOCCFG,
- 0x16}, // no frequency offset compensation, POST_K same as PRE_K, PRE_K is 4K, GATE is off
- /* Automatic Gain Control */
- {CC1101_AGCCTRL0, 0x80},
- {CC1101_AGCCTRL1, 0x58},
- {CC1101_AGCCTRL2, 0x87},
- /* Wake on radio and timeouts control */
- {CC1101_WORCTRL, 0xFB}, // WOR_RES is 2^15 periods (0.91 - 0.94 s) 16.5 - 17.2 hours
- /* Frontend configuration */
- {CC1101_FREND0, 0x10}, // Adjusts current TX LO buffer
- {CC1101_FREND1, 0x56},
- /* End */
- {0, 0},
- /* CC1101 2FSK PATABLE. */
- {0xC0, 0},
- {0, 0},
- {0, 0},
- {0, 0}};
- /* 40 KBaud, 2FSK, 28 kHz deviation, 270 Khz bandwidth filter. */
- static uint8_t protoview_subghz_40k_fsk_async_regs[][2] = {
- /* GPIO GD0 */
- {CC1101_IOCFG0, 0x0D}, // GD0 as async serial data output/input
- /* Frequency Synthesizer Control */
- {CC1101_FSCTRL1, 0x06}, // IF = (26*10^6) / (2^10) * 0x06 = 152343.75Hz
- /* Packet engine */
- {CC1101_PKTCTRL0, 0x32}, // Async, continious, no whitening
- {CC1101_PKTCTRL1, 0x04},
- // // Modem Configuration
- {CC1101_MDMCFG0, 0x00},
- {CC1101_MDMCFG1, 0x02},
- {CC1101_MDMCFG2,
- 0x04}, // Format 2-FSK/FM, No preamble/sync, Disable (current optimized). Other code reading TPMS uses GFSK, but should be the same when in RX mode.
- {CC1101_MDMCFG3, 0x93}, // Data rate is 40kBaud
- {CC1101_MDMCFG4, 0x6A}, // 6 = BW filter 270kHz, A = Data rate exp
- {CC1101_DEVIATN, 0x41}, // Deviation 28kHz
- /* Main Radio Control State Machine */
- {CC1101_MCSM0, 0x18}, // Autocalibrate on idle-to-rx/tx, PO_TIMEOUT is 64 cycles(149-155us)
- /* Frequency Offset Compensation Configuration */
- {CC1101_FOCCFG,
- 0x16}, // no frequency offset compensation, POST_K same as PRE_K, PRE_K is 4K, GATE is off
- /* Automatic Gain Control */
- {CC1101_AGCCTRL0,
- 0x91}, //10 - Medium hysteresis, medium asymmetric dead zone, medium gain ; 01 - 16 samples agc; 00 - Normal AGC, 01 - 8dB boundary
- {CC1101_AGCCTRL1,
- 0x00}, // 0; 0 - LNA 2 gain is decreased to minimum before decreasing LNA gain; 00 - Relative carrier sense threshold disabled; 0000 - RSSI to MAIN_TARGET
- {CC1101_AGCCTRL2, 0x07}, // 00 - DVGA all; 000 - MAX LNA+LNA2; 111 - MAIN_TARGET 42 dB
- /* Wake on radio and timeouts control */
- {CC1101_WORCTRL, 0xFB}, // WOR_RES is 2^15 periods (0.91 - 0.94 s) 16.5 - 17.2 hours
- /* Frontend configuration */
- {CC1101_FREND0, 0x10}, // Adjusts current TX LO buffer
- {CC1101_FREND1, 0x56},
- /* End */
- {0, 0},
- /* CC1101 2FSK PATABLE. */
- {0xC0, 0},
- {0, 0},
- {0, 0},
- {0, 0}};
- /* This is like the default Flipper OOK 640Khz bandwidth preset, but
- * the bandwidth is changed to 40kBaud, in order to receive signals
- * with a pulse width ~25us/30us. */
- static const uint8_t protoview_subghz_40k_ook_async_regs[][2] = {
- /* GPIO GD0 */
- {CC1101_IOCFG0, 0x0D}, // GD0 as async serial data output/input
- /* FIFO and internals */
- {CC1101_FIFOTHR, 0x07}, // The only important bit is ADC_RETENTION
- /* Packet engine */
- {CC1101_PKTCTRL0, 0x32}, // Async, continious, no whitening
- /* Frequency Synthesizer Control */
- {CC1101_FSCTRL1, 0x06}, // IF = (26*10^6) / (2^10) * 0x06 = 152343.75Hz
- // Modem Configuration
- {CC1101_MDMCFG0, 0x00}, // Channel spacing is 25kHz
- {CC1101_MDMCFG1, 0x00}, // Channel spacing is 25kHz
- {CC1101_MDMCFG2, 0x30}, // Format ASK/OOK, No preamble/sync
- {CC1101_MDMCFG3, 0x93}, // Data rate is 40kBaud
- {CC1101_MDMCFG4, 0x1A}, // Rx BW filter is 650.000kHz
- /* Main Radio Control State Machine */
- {CC1101_MCSM0, 0x18}, // Autocalibrate on idle-to-rx/tx, PO_TIMEOUT is 64 cycles(149-155us)
- /* Frequency Offset Compensation Configuration */
- {CC1101_FOCCFG,
- 0x18}, // no frequency offset compensation, POST_K same as PRE_K, PRE_K is 4K, GATE is off
- /* Automatic Gain Control */
- {CC1101_AGCCTRL0,
- 0x91}, // 10 - Medium hysteresis, medium asymmetric dead zone, medium gain ; 01 - 16 samples agc; 00 - Normal AGC, 01 - 8dB boundary
- {CC1101_AGCCTRL1,
- 0x0}, // 0; 0 - LNA 2 gain is decreased to minimum before decreasing LNA gain; 00 - Relative carrier sense threshold disabled; 0000 - RSSI to MAIN_TARGET
- {CC1101_AGCCTRL2, 0x07}, // 00 - DVGA all; 000 - MAX LNA+LNA2; 111 - MAIN_TARGET 42 dB
- /* Wake on radio and timeouts control */
- {CC1101_WORCTRL, 0xFB}, // WOR_RES is 2^15 periods (0.91 - 0.94 s) 16.5 - 17.2 hours
- /* Frontend configuration */
- {CC1101_FREND0, 0x11}, // Adjusts current TX LO buffer + high is PATABLE[1]
- {CC1101_FREND1, 0xB6}, //
- /* End */
- {0, 0},
- /* CC1101 OOK PATABLE. */
- {0, 0xC0},
- {0, 0},
- {0, 0},
- {0, 0}};
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