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https://github.com/MarekZegare4/MeshCore-Solo.git
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JakubandClaude Opus 5.5
b50ecc83d5
The speaker's I2S channel was only disabled when idle, which leaves MCLK running. Its fractional divider (160 MHz / 39 1/16 = 4.096 MHz) makes a comb of lines every 256 kHz: one at 869.632 MHz, in the EU narrow mesh channel, lifted the LoRa noise floor from ~-102 to ~-85 dBm, and others land near GPS L1 and BeiDou B1. The channel is now deleted and its pins held low after each sound, and made again for the next one. Measured: noise floor -102 dBm, outdoor first fix 87 s (was 620 s and more). Also: TCXO at 3.0 V (the L2's part, as Meshtastic has it); GLONASS enabled on the L76K after each power-up; begin() on a running receiver no longer resets it (a reset threw away the acquisition in progress). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
#pragma once
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#define RADIOLIB_STATIC_ONLY 1
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#include <RadioLib.h>
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#include <helpers/radiolib/RadioLibWrappers.h>
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#include <helpers/radiolib/CustomSX1262Wrapper.h>
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#include "WioTrackerL2Board.h"
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#include <helpers/AutoDiscoverRTCClock.h>
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#include <helpers/SensorManager.h>
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#include <helpers/sensors/EnvironmentSensorManager.h>
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#include <helpers/sensors/MicroNMEALocationProvider.h>
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#ifdef DISPLAY_CLASS
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#include "WioTrackerL2Display.h"
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#include <helpers/ui/MomentaryButton.h>
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#endif
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// The L76K's power and reset lines are on the IO expander, out of the NMEA
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// provider's reach: begin() / stop() / reset() drive them here, so GPS off
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// (Settings, duty cycling) really powers the receiver down. begin() on a
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// running receiver does nothing: a reset there (the app setting "gps" again)
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// threw away the acquisition in progress.
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class L2GpsProvider : public MicroNMEALocationProvider {
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bool _uart_off = false;
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bool _started = false; // begin() ran (the boot one does the reset)
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bool _cfg_pending = false; // constellations to set once the module talks
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uint32_t _cfg_rx = 0;
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public:
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using MicroNMEALocationProvider::MicroNMEALocationProvider;
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void begin() override;
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void stop() override;
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void reset() override;
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bool isEnabled() override;
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void loop() override;
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};
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extern WioTrackerL2Board board;
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extern WRAPPER_CLASS radio_driver;
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extern AutoDiscoverRTCClock rtc_clock;
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extern EnvironmentSensorManager sensors;
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extern L2GpsProvider gps;
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#ifdef DISPLAY_CLASS
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extern DISPLAY_CLASS display;
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extern MomentaryButton user_btn;
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#endif
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bool radio_init();
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mesh::LocalIdentity radio_new_identity();
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