System API
- App Image Format
- Bootloader Image Format
- Application Level Tracing
- Call function with external stack
- Chip Revision
- 控制台终端
- eFuse Manager
- 错误代码和辅助函数
- ESP HTTPS OTA
- Event Loop Library
- FreeRTOS (Overview)
- FreeRTOS (ESP-IDF)
- FreeRTOS (Supplemental Features)
- 堆内存分配
- Memory Management for MMU Supported Memory
- Heap Memory Debugging
- 高分辨率定时器（ESP 定时器）
- Internal and Unstable APIs
- Inter-Processor Call
- Interrupt allocation
- Logging library
- 杂项系统 API
- 空中升级 (OTA)
- Performance Monitor
- 电源管理
- POSIX Threads Support
- Random Number Generation
- 睡眠模式
- SoC Capabilities
- 系统时间
- The himem allocation API
- ULP 协处理器编程
- Watchdogs
此部分 API 代码示例存放在 ESP-IDF 示例项目的 system 目录下。