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[SX1278] Add support for coding rate 4/4

pull/1587/head
GUVWAF 2025-09-01 19:51:47 +02:00
rodzic 47bc673bc5
commit b7fbf2fc23
6 zmienionych plików z 17 dodań i 8 usunięć
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3
src/modules/SX127x/SX1276.h
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@ -29,7 +29,8 @@ class SX1276: public SX1278 {
\param freq Carrier frequency in MHz. Allowed values range from 137.0 MHz to 1020.0 MHz.
\param bw %LoRa link bandwidth in kHz. Allowed values are 7.8, 10.4, 15.6, 20.8, 31.25, 41.7, 62.5, 125, 250 and 500 kHz.
\param sf %LoRa link spreading factor. Allowed values range from 6 to 12.
\param cr %LoRa link coding rate denominator. Allowed values range from 5 to 8.
\param cr %LoRa link coding rate denominator. Allowed values range from 4 to 8. Note that a value of 4 means no coding,
is undocumented and not recommended without your own FEC.
\param syncWord %LoRa sync word. Can be used to distinguish different networks. Note that value 0x34 is reserved for LoRaWAN networks.
\param power Transmission output power in dBm. Allowed values range from 2 to 17 dBm.
\param preambleLength Length of %LoRa transmission preamble in symbols. The actual preamble length is 4.25 symbols longer than the set number.

2
src/modules/SX127x/SX1277.cpp
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@ -149,7 +149,7 @@ int16_t SX1277::checkDataRate(DataRate_t dr) {
} else if(modem == RADIOLIB_SX127X_LORA) {
RADIOLIB_CHECK_RANGE(dr.lora.spreadingFactor, 6, 9, RADIOLIB_ERR_INVALID_SPREADING_FACTOR);
RADIOLIB_CHECK_RANGE(dr.lora.bandwidth, 0.0f, 510.0f, RADIOLIB_ERR_INVALID_BANDWIDTH);
RADIOLIB_CHECK_RANGE(dr.lora.codingRate, 5, 8, RADIOLIB_ERR_INVALID_CODING_RATE);
RADIOLIB_CHECK_RANGE(dr.lora.codingRate, 4, 8, RADIOLIB_ERR_INVALID_CODING_RATE);
return(RADIOLIB_ERR_NONE);
}

3
src/modules/SX127x/SX1277.h
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@ -29,7 +29,8 @@ class SX1277: public SX1278 {
\param freq Carrier frequency in MHz. Allowed values range from 137.0 MHz to 1020.0 MHz.
\param bw %LoRa link bandwidth in kHz. Allowed values are 7.8, 10.4, 15.6, 20.8, 31.25, 41.7, 62.5, 125, 250 and 500 kHz.
\param sf %LoRa link spreading factor. Allowed values range from 6 to 9.
\param cr %LoRa link coding rate denominator. Allowed values range from 5 to 8.
\param cr %LoRa link coding rate denominator. Allowed values range from 4 to 8. Note that a value of 4 means no coding,
is undocumented and not recommended without your own FEC.
\param syncWord %LoRa sync word. Can be used to distinguish different networks. Note that value 0x34 is reserved for LoRaWAN networks.
\param power Transmission output power in dBm. Allowed values range from 2 to 17 dBm.
\param preambleLength Length of %LoRa transmission preamble in symbols. The actual preamble length is 4.25 symbols longer than the set number.

5
src/modules/SX127x/SX1278.cpp
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@ -209,6 +209,9 @@ int16_t SX1278::setCodingRate(uint8_t cr) {
// check allowed coding rate values
switch(cr) {
case 4:
newCodingRate = RADIOLIB_SX1278_CR_4_4;
break;
case 5:
newCodingRate = RADIOLIB_SX1278_CR_4_5;
break;
@ -281,7 +284,7 @@ int16_t SX1278::checkDataRate(DataRate_t dr) {
} else if(modem == RADIOLIB_SX127X_LORA) {
RADIOLIB_CHECK_RANGE(dr.lora.spreadingFactor, 6, 12, RADIOLIB_ERR_INVALID_SPREADING_FACTOR);
RADIOLIB_CHECK_RANGE(dr.lora.bandwidth, 0.0f, 510.0f, RADIOLIB_ERR_INVALID_BANDWIDTH);
RADIOLIB_CHECK_RANGE(dr.lora.codingRate, 5, 8, RADIOLIB_ERR_INVALID_CODING_RATE);
RADIOLIB_CHECK_RANGE(dr.lora.codingRate, 4, 8, RADIOLIB_ERR_INVALID_CODING_RATE);
return(RADIOLIB_ERR_NONE);
}

9
src/modules/SX127x/SX1278.h
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@ -49,7 +49,8 @@
#define RADIOLIB_SX1278_BW_125_00_KHZ 0b01110000 // 7 4 125.00 kHz
#define RADIOLIB_SX1278_BW_250_00_KHZ 0b10000000 // 7 4 250.00 kHz
#define RADIOLIB_SX1278_BW_500_00_KHZ 0b10010000 // 7 4 500.00 kHz
#define RADIOLIB_SX1278_CR_4_5 0b00000010 // 3 1 error coding rate: 4/5
#define RADIOLIB_SX1278_CR_4_4 0b00000000 // 3 1 error coding rate: 4/4 (undocumented)
#define RADIOLIB_SX1278_CR_4_5 0b00000010 // 3 1 4/5
#define RADIOLIB_SX1278_CR_4_6 0b00000100 // 3 1 4/6
#define RADIOLIB_SX1278_CR_4_7 0b00000110 // 3 1 4/7
#define RADIOLIB_SX1278_CR_4_8 0b00001000 // 3 1 4/8
@ -120,7 +121,8 @@ class SX1278: public SX127x {
\param freq Carrier frequency in MHz. Allowed values range from 137.0 MHz to 525.0 MHz.
\param bw %LoRa link bandwidth in kHz. Allowed values are 7.8, 10.4, 15.6, 20.8, 31.25, 41.7, 62.5, 125, 250 and 500 kHz.
\param sf %LoRa link spreading factor. Allowed values range from 6 to 12.
\param cr %LoRa link coding rate denominator. Allowed values range from 5 to 8.
\param cr %LoRa link coding rate denominator. Allowed values range from 4 to 8. Note that a value of 4 means no coding,
is undocumented and not recommended without your own FEC.
\param syncWord %LoRa sync word. Can be used to distinguish different networks. Note that value 0x34 is reserved for LoRaWAN networks.
\param power Transmission output power in dBm. Allowed values range from 2 to 17 dBm.
\param preambleLength Length of %LoRa transmission preamble in symbols. The actual preamble length is 4.25 symbols longer than the set number.
@ -174,7 +176,8 @@ class SX1278: public SX127x {
virtual int16_t setSpreadingFactor(uint8_t sf);
/*!
\brief Sets %LoRa link coding rate denominator. Allowed values range from 5 to 8. Only available in %LoRa mode.
\brief Sets %LoRa link coding rate denominator. Allowed values range from 4 to 8. Only available in %LoRa mode.
Note that a value of 4 means no coding, is undocumented and not recommended without your own FEC.
\param cr %LoRa link coding rate denominator to be set.
\returns \ref status_codes
*/

3
src/modules/SX127x/SX1279.h
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@ -29,7 +29,8 @@ class SX1279: public SX1278 {
\param freq Carrier frequency in MHz. Allowed values range from 137.0 MHz to 960.0 MHz.
\param bw %LoRa link bandwidth in kHz. Allowed values are 7.8, 10.4, 15.6, 20.8, 31.25, 41.7, 62.5, 125, 250 and 500 kHz.
\param sf %LoRa link spreading factor. Allowed values range from 6 to 12.
\param cr %LoRa link coding rate denominator. Allowed values range from 5 to 8.
\param cr %LoRa link coding rate denominator. Allowed values range from 4 to 8. Note that a value of 4 means no coding,
is undocumented and not recommended without your own FEC.
\param syncWord %LoRa sync word. Can be used to distinguish different networks. Note that value 0x34 is reserved for LoRaWAN networks.
\param power Transmission output power in dBm. Allowed values range from 2 to 17 dBm.
\param preambleLength Length of %LoRa transmission preamble in symbols. The actual preamble length is 4.25 symbols longer than the set number.