From 0bd5bdc8963d6a8b5110aa34da897053f3d6c311 Mon Sep 17 00:00:00 2001
From: jgromes <jan.gromes@gmail.com>
Date: Sun, 24 Nov 2024 09:29:58 +0100
Subject: [PATCH] [SX126x] Allow 15 dBm on SX1261 (#1329)
---
src/modules/SX126x/SX1261.cpp | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/src/modules/SX126x/SX1261.cpp b/src/modules/SX126x/SX1261.cpp
index d6a90c34..89af5c83 100644
--- a/src/modules/SX126x/SX1261.cpp
+++ b/src/modules/SX126x/SX1261.cpp
@@ -16,11 +16,19 @@ int16_t SX1261::setOutputPower(int8_t power) {
RADIOLIB_ASSERT(state);
// set PA config
- state = SX126x::setPaConfig(0x04, RADIOLIB_SX126X_PA_CONFIG_SX1261, 0x00);
+ uint8_t paDutyCycle = 0x04;
+ int8_t txPwr = power;
+ if(power == 15) {
+ // for 15 dBm, increase the duty cycle and lowe the power to set
+ // SX1261/2 datasheet, DS.SX1261-2.W.APP Rev. 2.1 page 78
+ paDutyCycle = 0x06;
+ txPwr--;
+ }
+ state = SX126x::setPaConfig(paDutyCycle, RADIOLIB_SX126X_PA_CONFIG_SX1261, 0x00);
RADIOLIB_ASSERT(state);
// set output power with default 200us ramp
- state = SX126x::setTxParams(power, RADIOLIB_SX126X_PA_RAMP_200U);
+ state = SX126x::setTxParams(txPwr, RADIOLIB_SX126X_PA_RAMP_200U);
RADIOLIB_ASSERT(state);
// restore OCP configuration
@@ -29,9 +37,9 @@ int16_t SX1261::setOutputPower(int8_t power) {
int16_t SX1261::checkOutputPower(int8_t power, int8_t* clipped) {
if(clipped) {
- *clipped = RADIOLIB_MAX(-17, RADIOLIB_MIN(14, power));
+ *clipped = RADIOLIB_MAX(-17, RADIOLIB_MIN(15, power));
}
- RADIOLIB_CHECK_RANGE(power, -17, 14, RADIOLIB_ERR_INVALID_OUTPUT_POWER);
+ RADIOLIB_CHECK_RANGE(power, -17, 15, RADIOLIB_ERR_INVALID_OUTPUT_POWER);
return(RADIOLIB_ERR_NONE);
}