mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-24 13:33:06 +00:00
317 lines
11 KiB
C
317 lines
11 KiB
C
#include <cc1101.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}};
|