System API
- App Image Format
- Application Level Tracing
- Call function with external stack
- Chip Revision
- Console
- eFuse Manager
- Error Codes and Helper Functions
- ESP HTTPS OTA
- Event Loop Library
- FreeRTOS
- FreeRTOS Supplemental Features
- Heap Memory Allocation
- Heap Memory Debugging
- High Resolution Timer (ESP Timer)
- Internal and Unstable APIs
- Inter-Processor Call
- Interrupt allocation
- Logging library
- Miscellaneous System APIs
- Over The Air Updates (OTA)
- Performance Monitor
- Power Management
- POSIX Threads Support
- Random Number Generation
- Sleep Modes
- SoC Capabilities
- System Time
- The himem allocation API
- ULP Coprocessor programming
- Watchdogs
Code examples for this API section are provided in the system directory of ESP-IDF examples.