README.md

GD32F130 AVC-LAN CANBOX Decoder

Production-grade AVC-LAN bridge firmware for:

• Lexus RX300
• Toyota AVC-LAN systems
• Mark Levinson audio systems
• Android head unit integration

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Hardware

MCU:

• GD32F130C8T6
• Cortex-M3
• 48 MHz
• 64 KB FLASH
• 8 KB SRAM

Transceiver:

• SP485EE

Bus:

• Toyota AVC-LAN

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Features

AVC-LAN

• TX engine
• RX engine
• ACK handling
• Retry logic
• Arbitration
• Packet builder
• Checksum
• Device emulation
• CD changer emulation
• Amplifier control

Android Bridge

• UART bridge
• Android command parser
• Protocol layer

System

• Watchdog
• Scheduler
• Software timers
• Cooperative tasks
• Debug logger
• Runtime statistics
• Diagnostics
• Panic handler
• Health monitor

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Build

Toolchain:

• arm-none-eabi-gcc

Build:

make