mirror of
https://github.com/meshtastic/firmware.git
synced 2026-03-29 04:23:08 -04:00
ea3386f34a
Problem: - Inserting a µSD card causes RadioLib to hit a critical error and reboot - Device enters a boot loop as the SD card remains inserted Reproduction: - Insert a µSD card and power on - RadioLib reports a critical error on boot - Device reboots, repeating indefinitely Root cause: - On T-Lora Pager, SX1262 and the µSD slot share the same physical SPI bus (same SCK/MOSI/MISO pins, differentiated only by CS) - SDCARD_USE_SPI1 is intended for boards where SD is on a separate SPI bus; it initializes a second ESP32 SPI peripheral (SPI3) for SD - SPI2 is already driving those same pins for LoRa, so both controllers simultaneously drive the same GPIO lines, causing bus contention Fix: - Remove SDCARD_USE_SPI1 so both devices share a single SPI peripheral (SPI2), with CS pins providing device selection as intended - Tested on a custom fork of device-ui; LoRa and SD card map tiles both work correctly with an SD card inserted Signed-off-by: Andrew Yong <me@ndoo.sg>
Meshtastic Firmware
Overview
This repository contains the official device firmware for Meshtastic, an open-source LoRa mesh networking project designed for long-range, low-power communication without relying on internet or cellular infrastructure. The firmware supports various hardware platforms, including ESP32, nRF52, RP2040/RP2350, and Linux-based devices.
Meshtastic enables text messaging, location sharing, and telemetry over a decentralized mesh network, making it ideal for outdoor adventures, emergency preparedness, and remote operations.
Get Started
- 🔧 Building Instructions – Learn how to compile the firmware from source.
- ⚡ Flashing Instructions – Install or update the firmware on your device.
Join our community and help improve Meshtastic! 🚀
Stats
