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Node / ReticulumProjects / RNode_Firmware.git / commits / 7f26633


Commit 7f2663366ec7a4bcdac1d43a0d0e17e231d90e66

󰉖 Browse tree at this commit

Parents : 1275c58
Author : tomelec <tomgh@tomelec.net>
Date : 2019-10-14T23:16:30+02:00

LoRa: Enable LowDataRateOptimize for symbol length >16ms

Changes

2 files changed, 18 insertions(+), 0 deletions(-)

M LoRa.cpp +16
M LoRa.h +2

Diff

diff --git a/LoRa.cpp b/LoRa.cpp
index eb3ec2a..dcf5edc 100644
--- a/LoRa.cpp
+++ b/LoRa.cpp
@@ -418,6 +418,8 @@ void LoRaClass::setSpreadingFactor(int sf)
}
writeRegister(REG_MODEM_CONFIG_2, (readRegister(REG_MODEM_CONFIG_2) & 0x0f) | ((sf << 4) & 0xf0));
+
+ handleLowDataRate();
}
long LoRaClass::getSignalBandwidth()
@@ -437,6 +439,18 @@ long LoRaClass::getSignalBandwidth()
}
}
+void LoRaClass::handleLowDataRate(){
+ int sf = (readRegister(REG_MODEM_CONFIG_2) >> 4);
+ if ( long( (1<<sf) / (getSignalBandwidth()/1000)) > 16) {
+ // set auto AGC and LowDataRateOptimize
+ writeRegister(REG_MODEM_CONFIG_3, (1<<3)|(1<<2));
+ }
+ else {
+ // set auto AGC
+ writeRegister(REG_MODEM_CONFIG_3, (1<<2));
+ }
+}
+
void LoRaClass::setSignalBandwidth(long sbw)
{
int bw;
@@ -464,6 +478,8 @@ void LoRaClass::setSignalBandwidth(long sbw)
}
writeRegister(REG_MODEM_CONFIG_1, (readRegister(REG_MODEM_CONFIG_1) & 0x0f) | (bw << 4));
+
+ handleLowDataRate();
}
void LoRaClass::setCodingRate4(int denominator)

diff --git a/LoRa.h b/LoRa.h
index c65ce64..f191a74 100644
--- a/LoRa.h
+++ b/LoRa.h
@@ -82,6 +82,8 @@ private:
static void onDio0Rise();
+ void handleLowDataRate();
+
private:
SPISettings _spiSettings;
int _ss;


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