From: Keith Packard Date: Thu, 3 Jul 2014 05:30:23 +0000 (-0700) Subject: altos/cc1111: Adjust receive parameters to improve sensitivity X-Git-Tag: 1.4.9.1~11 X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=c20ddde2f9eb0ad8dbb982e9d0cbe91639160a34 altos/cc1111: Adjust receive parameters to improve sensitivity This removes the packet quality test and carrier sense tests when deciding whether to start decoding a packet. This lets more bad packets through, but the CRC check catches those and now we're regularly receiving packets down to -110 or even -112 dBm. Before this change, we'd rarely see packets as low as -105dBm Signed-off-by: Keith Packard --- diff --git a/src/cc1111/ao_pins.h b/src/cc1111/ao_pins.h index b40acbbd..2d524188 100644 --- a/src/cc1111/ao_pins.h +++ b/src/cc1111/ao_pins.h @@ -168,6 +168,7 @@ #define HAS_RSSI 1 #define HAS_AES 0 #define HAS_TELEMETRY 0 + #define AO_RADIO_REG_TEST 1 #endif #if defined(TELEMINI_V_1_0) @@ -363,6 +364,7 @@ #define HAS_RSSI 0 #define HAS_AES 0 #define HAS_TELEMETRY 0 + #define AO_RADIO_REG_TEST 1 #endif #if defined(TELEBT_V_0_1) @@ -410,6 +412,7 @@ #define HAS_RSSI 0 #define HAS_AES 0 #define HAS_TELEMETRY 0 + #define AO_RADIO_REG_TEST 1 #endif #if defined(TELELAUNCH_V_0_1) diff --git a/src/cc1111/ao_radio.c b/src/cc1111/ao_radio.c index 190647ce..fbdf7762 100644 --- a/src/cc1111/ao_radio.c +++ b/src/cc1111/ao_radio.c @@ -126,9 +126,9 @@ static __code uint8_t radio_setup[] = { (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) | (DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)), RF_MDMCFG3_OFF, (DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT), - RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_OFF | + RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_ON | RF_MDMCFG2_MOD_FORMAT_GFSK | - RF_MDMCFG2_SYNC_MODE_15_16_THRES), + RF_MDMCFG2_SYNC_MODE_15_16), RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_EN | RF_MDMCFG1_NUM_PREAMBLE_4 | (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)), @@ -155,8 +155,8 @@ static __code uint8_t radio_setup[] = { RF_FSCAL1_OFF, 0x00, RF_FSCAL0_OFF, 0x1F, - RF_TEST2_OFF, 0x88, - RF_TEST1_OFF, 0x31, + RF_TEST2_OFF, RF_TEST2_RX_LOW_DATA_RATE_MAGIC, + RF_TEST1_OFF, RF_TEST1_RX_LOW_DATA_RATE_MAGIC, RF_TEST0_OFF, 0x09, /* default sync values */ @@ -187,10 +187,16 @@ static __code uint8_t radio_setup[] = { RF_BSCFG_BS_POST_KI_PRE_KI| RF_BSCFG_BS_POST_KP_PRE_KP| RF_BSCFG_BS_LIMIT_0), - RF_AGCCTRL2_OFF, 0x03, - RF_AGCCTRL1_OFF, 0x40, - RF_AGCCTRL0_OFF, 0x91, - + RF_AGCCTRL2_OFF, (RF_AGCCTRL2_MAX_DVGA_GAIN_ALL| + RF_AGCCTRL2_MAX_LNA_GAIN_0| + RF_AGCCTRL2_MAGN_TARGET_33dB), + RF_AGCCTRL1_OFF, (RF_AGCCTRL1_AGC_LNA_PRIORITY_0 | + RF_AGCCTRL1_CARRIER_SENSE_REL_THR_DISABLE | + RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_0DB), + RF_AGCCTRL0_OFF, (RF_AGCCTRL0_HYST_LEVEL_NONE | + RF_AGCCTRL0_WAIT_TIME_8 | + RF_AGCCTRL0_AGC_FREEZE_NORMAL | + RF_AGCCTRL0_FILTER_LENGTH_8), RF_IOCFG2_OFF, 0x00, RF_IOCFG1_OFF, 0x00, RF_IOCFG0_OFF, 0x00, @@ -212,7 +218,7 @@ static __code uint8_t rdf_setup[] = { (RDF_DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)), /* packet length is set in-line */ - RF_PKTCTRL1_OFF, ((1 << PKTCTRL1_PQT_SHIFT)| + RF_PKTCTRL1_OFF, ((0 << PKTCTRL1_PQT_SHIFT)| PKTCTRL1_ADR_CHK_NONE), RF_PKTCTRL0_OFF, (RF_PKTCTRL0_PKT_FORMAT_NORMAL| RF_PKTCTRL0_LENGTH_CONFIG_FIXED), @@ -223,9 +229,9 @@ static __code uint8_t fixed_pkt_setup[] = { (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) | (DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)), RF_MDMCFG3_OFF, (DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT), - RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_OFF | + RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_ON | RF_MDMCFG2_MOD_FORMAT_GFSK | - RF_MDMCFG2_SYNC_MODE_15_16_THRES), + RF_MDMCFG2_SYNC_MODE_15_16), RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_EN | RF_MDMCFG1_NUM_PREAMBLE_4 | (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)), @@ -551,8 +557,31 @@ ao_radio_test_cmd(void) ao_radio_test(0); } +#if AO_RADIO_REG_TEST +static void +ao_radio_set_reg(void) +{ + uint8_t offset; + ao_cmd_hex(); + offset = ao_cmd_lex_i; + if (ao_cmd_status != ao_cmd_success) + return; + ao_cmd_hex(); + printf("RF[%x] %x", offset, RF[offset]); + if (ao_cmd_status == ao_cmd_success) { + RF[offset] = ao_cmd_lex_i; + printf (" -> %x", RF[offset]); + } + ao_cmd_status = ao_cmd_success; + printf("\n"); +} +#endif + __code struct ao_cmds ao_radio_cmds[] = { { ao_radio_test_cmd, "C <1 start, 0 stop, none both>\0Radio carrier test" }, +#if AO_RADIO_REG_TEST + { ao_radio_set_reg, "V \0Set radio register" }, +#endif { 0, NULL }, }; diff --git a/src/cc1111/cc1111.h b/src/cc1111/cc1111.h index 80d3fb70..ac1e71c9 100644 --- a/src/cc1111/cc1111.h +++ b/src/cc1111/cc1111.h @@ -1165,12 +1165,73 @@ __xdata __at (0xdf16) uint8_t RF_BSCFG; __xdata __at (0xdf17) uint8_t RF_AGCCTRL2; #define RF_AGCCTRL2_OFF 0x17 +#define RF_AGCCTRL2_MAX_DVGA_GAIN_ALL (0 << 6) +#define RF_AGCCTRL2_MAX_DVGA_GAIN_BUT_1 (1 << 6) +#define RF_AGCCTRL2_MAX_DVGA_GAIN_BUT_2 (2 << 6) +#define RF_AGCCTRL2_MAX_DVGA_GAIN_BUT_3 (3 << 6) +#define RF_AGCCTRL2_MAX_LNA_GAIN_0 (0 << 3) +#define RF_AGCCTRL2_MAX_LNA_GAIN_2_6 (1 << 3) +#define RF_AGCCTRL2_MAX_LNA_GAIN_6_1 (2 << 3) +#define RF_AGCCTRL2_MAX_LNA_GAIN_7_4 (3 << 3) +#define RF_AGCCTRL2_MAX_LNA_GAIN_9_2 (4 << 3) +#define RF_AGCCTRL2_MAX_LNA_GAIN_11_5 (5 << 3) +#define RF_AGCCTRL2_MAX_LNA_GAIN_14_6 (6 << 3) +#define RF_AGCCTRL2_MAX_LNA_GAIN_17_1 (7 << 3) +#define RF_AGCCTRL2_MAGN_TARGET_24dB (0 << 0) +#define RF_AGCCTRL2_MAGN_TARGET_27dB (1 << 0) +#define RF_AGCCTRL2_MAGN_TARGET_30dB (2 << 0) +#define RF_AGCCTRL2_MAGN_TARGET_33dB (3 << 0) +#define RF_AGCCTRL2_MAGN_TARGET_36dB (4 << 0) +#define RF_AGCCTRL2_MAGN_TARGET_38dB (5 << 0) +#define RF_AGCCTRL2_MAGN_TARGET_40dB (6 << 0) +#define RF_AGCCTRL2_MAGN_TARGET_42dB (7 << 0) + __xdata __at (0xdf18) uint8_t RF_AGCCTRL1; #define RF_AGCCTRL1_OFF 0x18 +#define RF_AGCCTRL1_AGC_LNA_PRIORITY_0 (0 << 6) +#define RF_AGCCTRL1_AGC_LNA_PRIORITY_1 (1 << 6) +#define RF_AGCCTRL1_CARRIER_SENSE_REL_THR_DISABLE (0 << 4) +#define RF_AGCCTRL1_CARRIER_SENSE_REL_THR_6DB (1 << 4) +#define RF_AGCCTRL1_CARRIER_SENSE_REL_THR_10DB (2 << 4) +#define RF_AGCCTRL1_CARRIER_SENSE_REL_THR_14DB (3 << 4) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_DISABLE (0x8 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_7DB_BELOW (0x9 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_6DB_BELOW (0xa << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_5DB_BELOW (0xb << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_4DB_BELOW (0xc << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_3DB_BELOW (0xd << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_2DB_BELOW (0xe << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_1DB_BELOW (0xf << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_0DB (0x0 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_1DB_ABOVE (0x1 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_2DB_ABOVE (0x2 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_3DB_ABOVE (0x3 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_4DB_ABOVE (0x4 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_5DB_ABOVE (0x5 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_6DB_ABOVE (0x6 << 0) +#define RF_AGCCTRL1_CARRIER_SENSE_ABS_THR_7DB_ABOVE (0x7 << 0) + __xdata __at (0xdf19) uint8_t RF_AGCCTRL0; #define RF_AGCCTRL0_OFF 0x19 +#define RF_AGCCTRL0_HYST_LEVEL_NONE (0 << 6) +#define RF_AGCCTRL0_HYST_LEVEL_LOW (1 << 6) +#define RF_AGCCTRL0_HYST_LEVEL_MEDIUM (2 << 6) +#define RF_AGCCTRL0_HYST_LEVEL_HIGH (3 << 6) +#define RF_AGCCTRL0_WAIT_TIME_8 (0 << 4) +#define RF_AGCCTRL0_WAIT_TIME_16 (1 << 4) +#define RF_AGCCTRL0_WAIT_TIME_24 (2 << 4) +#define RF_AGCCTRL0_WAIT_TIME_32 (3 << 4) +#define RF_AGCCTRL0_AGC_FREEZE_NORMAL (0 << 2) +#define RF_AGCCTRL0_AGC_FREEZE_SYNC (1 << 2) +#define RF_AGCCTRL0_AGC_FREEZE_MANUAL_ANALOG (2 << 2) +#define RF_AGCCTRL0_AGC_FREEZE_MANUAL_BOTH (3 << 2) +#define RF_AGCCTRL0_FILTER_LENGTH_8 (0 << 0) +#define RF_AGCCTRL0_FILTER_LENGTH_16 (1 << 0) +#define RF_AGCCTRL0_FILTER_LENGTH_32 (2 << 0) +#define RF_AGCCTRL0_FILTER_LENGTH_64 (3 << 0) + __xdata __at (0xdf1a) uint8_t RF_FREND1; #define RF_FREND1_OFF 0x1a diff --git a/src/telebt-v1.0/ao_pins.h b/src/telebt-v1.0/ao_pins.h index b5562573..4181ef35 100644 --- a/src/telebt-v1.0/ao_pins.h +++ b/src/telebt-v1.0/ao_pins.h @@ -49,6 +49,7 @@ #define HAS_MONITOR 1 #define LEGACY_MONITOR 0 #define HAS_TELEMETRY 0 +#define AO_RADIO_REG_TEST 1 #define HAS_ADC 1 #define AO_PAD_ADC_BATT 0