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47 lines
1.8 KiB
C
47 lines
1.8 KiB
C
#include <cc1101.h>
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static uint8_t protoview_subghz_tpms_async_regs[][2] = {
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/* GPIO GD0 */
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{CC1101_IOCFG0, 0x0D}, // GD0 as async serial data output/input
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/* Frequency Synthesizer Control */
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{CC1101_FSCTRL1, 0x06}, // IF = (26*10^6) / (2^10) * 0x06 = 152343.75Hz
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/* Packet engine */
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{CC1101_PKTCTRL0, 0x32}, // Async, continious, no whitening
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{CC1101_PKTCTRL1, 0x04},
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// // Modem Configuration
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{CC1101_MDMCFG0, 0x00},
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{CC1101_MDMCFG1, 0x02},
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{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.
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{CC1101_MDMCFG3, 0x93}, // Data rate is 20kBaud
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{CC1101_MDMCFG4, 0x59}, // Rx bandwidth filter is 325 kHz
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{CC1101_DEVIATN, 0x41}, // Deviation 28.56 kHz
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/* Main Radio Control State Machine */
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{CC1101_MCSM0, 0x18}, // Autocalibrate on idle-to-rx/tx, PO_TIMEOUT is 64 cycles(149-155us)
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/* Frequency Offset Compensation Configuration */
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{CC1101_FOCCFG,
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0x16}, // no frequency offset compensation, POST_K same as PRE_K, PRE_K is 4K, GATE is off
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/* Automatic Gain Control */
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{CC1101_AGCCTRL0,
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0x91}, //10 - Medium hysteresis, medium asymmetric dead zone, medium gain ; 01 - 16 samples agc; 00 - Normal AGC, 01 - 8dB boundary
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{CC1101_AGCCTRL1,
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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
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{CC1101_AGCCTRL2, 0x07}, // 00 - DVGA all; 000 - MAX LNA+LNA2; 111 - MAIN_TARGET 42 dB
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/* Wake on radio and timeouts control */
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{CC1101_WORCTRL, 0xFB}, // WOR_RES is 2^15 periods (0.91 - 0.94 s) 16.5 - 17.2 hours
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/* Frontend configuration */
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{CC1101_FREND0, 0x10}, // Adjusts current TX LO buffer
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{CC1101_FREND1, 0x56},
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/* End */
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{0, 0},
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};
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