UART / RS485 Overview
Functions, scope, source layout, and reading order for UART / RS485.
UART / RS485 Configuration
Hardware checks, kernel configuration, Device Tree, build, and DTB validation for UART / RS485.
UART / RS485 Development and Testing
Interfaces, target commands, and functional validation for UART / RS485.
UART / RS485 Diagnostics and FAQ
Logs, debug nodes, and common-failure diagnosis for UART / RS485.