System API
- App image format
- Application Level Tracing
- Console Component
- eFuse Manager
- Error Codes and Helper Functions
- ESP HTTPS OTA
- POSIX Threads Support
- Event Loop Library
- FreeRTOS
- FreeRTOS Additions
- Heap Memory Allocation
- Heap Memory Debugging
- High Resolution Timer
- Himem (large external SPI RAM) API
- Inter-Processor Call
- Call function with external stack
- Interrupt Allocation
- Logging
- Miscellaneous System APIs
- Over The Air Updates (OTA)
- Performance Monitor
- Power Management
- Random Number Generation
- Sleep Modes
- Watchdogs
- System Time
- Internal and Unstable API
Code examples for this API section are provided in the system directory of ESP-IDF examples.