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https://github.com/meshcore-dev/MeshCore.git
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109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
#include "LoRaFEMControl.h"
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#include <driver/rtc_io.h>
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#include <esp_sleep.h>
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#include <Arduino.h>
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void LoRaFEMControl::init(void)
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{
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// Power on FEM LDO — set registers before releasing RTC hold for
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// atomic transition (no glitch on deep sleep wake).
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pinMode(P_LORA_PA_POWER, OUTPUT);
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digitalWrite(P_LORA_PA_POWER, HIGH);
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rtc_gpio_hold_dis((gpio_num_t)P_LORA_PA_POWER);
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esp_reset_reason_t reason = esp_reset_reason();
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if (reason != ESP_RST_DEEPSLEEP) {
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delay(1); // FEM startup time after cold power-on
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}
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// Auto-detect FEM type via shared GPIO2 default pull level.
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// GC1109 CSD: internal pull-down → reads LOW
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// KCT8103L CSD: internal pull-up → reads HIGH
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rtc_gpio_hold_dis((gpio_num_t)P_LORA_KCT8103L_PA_CSD);
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pinMode(P_LORA_KCT8103L_PA_CSD, INPUT);
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delay(1);
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if(digitalRead(P_LORA_KCT8103L_PA_CSD)==HIGH) {
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// FEM is KCT8103L (V4.3)
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fem_type= KCT8103L_PA;
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pinMode(P_LORA_KCT8103L_PA_CSD, OUTPUT);
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digitalWrite(P_LORA_KCT8103L_PA_CSD, HIGH);
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rtc_gpio_hold_dis((gpio_num_t)P_LORA_KCT8103L_PA_CTX);
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pinMode(P_LORA_KCT8103L_PA_CTX, OUTPUT);
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digitalWrite(P_LORA_KCT8103L_PA_CTX, lna_enabled ? LOW : HIGH);
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setLnaCanControl(true);
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} else {
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// FEM is GC1109 (V4.2)
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fem_type= GC1109_PA;
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pinMode(P_LORA_GC1109_PA_EN, OUTPUT);
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digitalWrite(P_LORA_GC1109_PA_EN, HIGH);
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pinMode(P_LORA_GC1109_PA_TX_EN, OUTPUT);
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digitalWrite(P_LORA_GC1109_PA_TX_EN, LOW);
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}
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}
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void LoRaFEMControl::setSleepModeEnable(void)
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{
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if(fem_type==GC1109_PA) {
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/*
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* Do not switch the power on and off frequently.
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* After turning off P_LORA_PA_EN, the power consumption has dropped to the uA level.
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*/
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digitalWrite(P_LORA_GC1109_PA_EN, LOW);
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digitalWrite(P_LORA_GC1109_PA_TX_EN, LOW);
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} else if(fem_type==KCT8103L_PA) {
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// shutdown the PA
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digitalWrite(P_LORA_KCT8103L_PA_CSD, LOW);
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}
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}
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void LoRaFEMControl::setTxModeEnable(void)
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{
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if(fem_type==GC1109_PA) {
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digitalWrite(P_LORA_GC1109_PA_EN, HIGH); // CSD=1: Chip enabled
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digitalWrite(P_LORA_GC1109_PA_TX_EN, HIGH); // CPS: 1=full PA, 0=bypass (for RX, CPS is don't care)
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} else if(fem_type==KCT8103L_PA) {
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digitalWrite(P_LORA_KCT8103L_PA_CSD, HIGH);
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digitalWrite(P_LORA_KCT8103L_PA_CTX, HIGH);
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}
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}
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void LoRaFEMControl::setRxModeEnable(void)
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{
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if(fem_type==GC1109_PA) {
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digitalWrite(P_LORA_GC1109_PA_EN, HIGH); // CSD=1: Chip enabled
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digitalWrite(P_LORA_GC1109_PA_TX_EN, LOW);
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} else if(fem_type==KCT8103L_PA) {
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digitalWrite(P_LORA_KCT8103L_PA_CSD, HIGH);
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if(lna_enabled) {
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digitalWrite(P_LORA_KCT8103L_PA_CTX, LOW); // LNA on
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} else {
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digitalWrite(P_LORA_KCT8103L_PA_CTX, HIGH); // LNA bypass
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}
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}
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}
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void LoRaFEMControl::setRxModeEnableWhenMCUSleep(void)
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{
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digitalWrite(P_LORA_PA_POWER, HIGH);
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rtc_gpio_hold_en((gpio_num_t)P_LORA_PA_POWER);
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if(fem_type==GC1109_PA) {
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digitalWrite(P_LORA_GC1109_PA_EN, HIGH);
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rtc_gpio_hold_en((gpio_num_t)P_LORA_GC1109_PA_EN);
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gpio_pulldown_en((gpio_num_t)P_LORA_GC1109_PA_TX_EN);
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} else if(fem_type==KCT8103L_PA) {
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digitalWrite(P_LORA_KCT8103L_PA_CSD, HIGH);
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rtc_gpio_hold_en((gpio_num_t)P_LORA_KCT8103L_PA_CSD);
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if(lna_enabled) {
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digitalWrite(P_LORA_KCT8103L_PA_CTX, LOW); // LNA on
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} else {
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digitalWrite(P_LORA_KCT8103L_PA_CTX, HIGH); // LNA bypass
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}
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rtc_gpio_hold_en((gpio_num_t)P_LORA_KCT8103L_PA_CTX);
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}
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}
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void LoRaFEMControl::setLNAEnable(bool enabled)
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{
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lna_enabled = enabled;
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}
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