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[SX126x] Improved RNG

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This commit is contained in:
jgromes 2023-04-02 21:01:13 +02:00
parent 45c5859338
commit 5f0cfa9bf6
2 changed files with 22 additions and 2 deletions
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8
src/modules/SX126x/SX126x.cpp
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@ -1391,6 +1391,10 @@ int16_t SX126x::autoLDRO() {
} }
uint8_t SX126x::randomByte() { uint8_t SX126x::randomByte() {
// set some magic registers
_mod->SPIsetRegValue(RADIOLIB_SX126X_REG_ANA_LNA, RADIOLIB_SX126X_LNA_RNG_ENABLED, 0, 0);
_mod->SPIsetRegValue(RADIOLIB_SX126X_REG_ANA_MIXER, RADIOLIB_SX126X_MIXER_RNG_ENABLED, 0, 0);
// set mode to Rx // set mode to Rx
setRx(RADIOLIB_SX126X_RX_TIMEOUT_INF); setRx(RADIOLIB_SX126X_RX_TIMEOUT_INF);
@ -1408,6 +1412,10 @@ uint8_t SX126x::randomByte() {
// set mode to standby // set mode to standby
standby(); standby();
// restore the magic registers
_mod->SPIsetRegValue(RADIOLIB_SX126X_REG_ANA_LNA, RADIOLIB_SX126X_LNA_RNG_DISABLED, 0, 0);
_mod->SPIsetRegValue(RADIOLIB_SX126X_REG_ANA_MIXER, RADIOLIB_SX126X_MIXER_RNG_DISABLED, 0, 0);
return(randByte); return(randByte);
} }

16
src/modules/SX126x/SX126x.h
View file

@ -114,6 +114,7 @@
#define RADIOLIB_SX126X_REG_BROADCAST_ADDRESS 0x06CE #define RADIOLIB_SX126X_REG_BROADCAST_ADDRESS 0x06CE
#define RADIOLIB_SX126X_REG_PAYLOAD_LENGTH 0x0702 #define RADIOLIB_SX126X_REG_PAYLOAD_LENGTH 0x0702
#define RADIOLIB_SX126X_REG_PACKET_PARAMS 0x0704 #define RADIOLIB_SX126X_REG_PACKET_PARAMS 0x0704
#define RADIOLIB_SX126X_REG_LORA_SYNC_TIMEOUT 0x0706
#define RADIOLIB_SX126X_REG_IQ_CONFIG 0x0736 #define RADIOLIB_SX126X_REG_IQ_CONFIG 0x0736
#define RADIOLIB_SX126X_REG_LORA_SYNC_WORD_MSB 0x0740 #define RADIOLIB_SX126X_REG_LORA_SYNC_WORD_MSB 0x0740
#define RADIOLIB_SX126X_REG_LORA_SYNC_WORD_LSB 0x0741 #define RADIOLIB_SX126X_REG_LORA_SYNC_WORD_LSB 0x0741
@ -132,8 +133,10 @@
#define RADIOLIB_SX126X_REG_RSSI_AVG_WINDOW 0x089B #define RADIOLIB_SX126X_REG_RSSI_AVG_WINDOW 0x089B
#define RADIOLIB_SX126X_REG_RX_GAIN 0x08AC #define RADIOLIB_SX126X_REG_RX_GAIN 0x08AC
#define RADIOLIB_SX126X_REG_TX_CLAMP_CONFIG 0x08D8 #define RADIOLIB_SX126X_REG_TX_CLAMP_CONFIG 0x08D8
#define RADIOLIB_SX126X_REG_ANA_LNA 0x08E2
#define RADIOLIB_SX126X_REG_LNA_CAP_TUNE_N 0x08E3 #define RADIOLIB_SX126X_REG_LNA_CAP_TUNE_N 0x08E3
#define RADIOLIB_SX126X_REG_LNA_CAP_TUNE_P 0x08E4 #define RADIOLIB_SX126X_REG_LNA_CAP_TUNE_P 0x08E4
#define RADIOLIB_SX126X_REG_ANA_MIXER 0x08E5
#define RADIOLIB_SX126X_REG_OCP_CONFIGURATION 0x08E7 #define RADIOLIB_SX126X_REG_OCP_CONFIGURATION 0x08E7
#define RADIOLIB_SX126X_REG_RTC_CTRL 0x0902 #define RADIOLIB_SX126X_REG_RTC_CTRL 0x0902
#define RADIOLIB_SX126X_REG_XTA_TRIM 0x0911 #define RADIOLIB_SX126X_REG_XTA_TRIM 0x0911
@ -419,8 +422,17 @@
#define RADIOLIB_SX126X_SPECTRAL_SCAN_COMPLETED 0xFF // 7 0 completed #define RADIOLIB_SX126X_SPECTRAL_SCAN_COMPLETED 0xFF // 7 0 completed
// RADIOLIB_SX126X_REG_RSSI_AVG_WINDOW // RADIOLIB_SX126X_REG_RSSI_AVG_WINDOW
#define RADIOLIB_SX126x_SPECTRAL_SCAN_WINDOW_DEFAULT (0x05 << 2) // 7 0 default RSSI average window #define RADIOLIB_SX126X_SPECTRAL_SCAN_WINDOW_DEFAULT (0x05 << 2) // 7 0 default RSSI average window
// RADIOLIB_SX126X_REG_ANA_LNA
#define RADIOLIB_SX126X_LNA_RNG_DISABLED 0b00000001 // 0 0 random number: disabled
#define RADIOLIB_SX126X_LNA_RNG_ENABLED 0b00000000 // 0 0 enabled
// RADIOLIB_SX126X_REG_ANA_MIXER
#define RADIOLIB_SX126X_MIXER_RNG_DISABLED 0b00000001 // 7 7 random number: disabled
#define RADIOLIB_SX126X_MIXER_RNG_ENABLED 0b00000000 // 7 7 enabled
// size of the spectral scan result
#define RADIOLIB_SX126X_SPECTRAL_SCAN_RES_SIZE (33) #define RADIOLIB_SX126X_SPECTRAL_SCAN_RES_SIZE (33)
/*! /*!
@ -1089,7 +1101,7 @@ class SX126x: public PhysicalLayer {
\returns \ref status_codes \returns \ref status_codes
*/ */
int16_t spectralScanStart(uint16_t numSamples, uint8_t window = RADIOLIB_SX126x_SPECTRAL_SCAN_WINDOW_DEFAULT, uint8_t interval = RADIOLIB_SX126X_SCAN_INTERVAL_8_20_US); int16_t spectralScanStart(uint16_t numSamples, uint8_t window = RADIOLIB_SX126X_SPECTRAL_SCAN_WINDOW_DEFAULT, uint8_t interval = RADIOLIB_SX126X_SCAN_INTERVAL_8_20_US);
/*! /*!
\brief Abort an ongoing spectral scan. \brief Abort an ongoing spectral scan.