System API

• FreeRTOS
• FreeRTOS Additions
• Heap Memory Allocation
• Heap Memory Debugging
• Himem (large external SPI RAM) API
• Interrupt Allocation
• Watchdogs
• Inter-Processor Call
• High Resolution Timer
• Logging
• Event Loop Library
• Application Level Tracing
• Power Management
• Sleep Modes
• Over The Air Updates (OTA)
• ESP HTTPS OTA
• ESP pthread
• Error Codes and Helper Functions
• Miscellaneous System APIs

Example code for this API section is provided in system directory of ESP-IDF examples.