API Guides ********** :link_to_translation:`zh_CN:[中文]` .. toctree:: :maxdepth: 1 Application Level Tracing <app_trace> :esp32: BluFi <blufi> Bootloader <bootloader> Build System <build-system> :esp32: Build System (Legacy GNU Make) <build-system-legacy> Deep Sleep Wake Stubs <deep-sleep-stub> Error Handling <error-handling> :esp32: ESP-BLE-MESH <esp-ble-mesh/ble-mesh-index> ESP-MESH (Wi-Fi) <mesh> Core Dump <core_dump> Event Handling <event-handling> External SPI-connected RAM <external-ram> Fatal Errors <fatal-errors> Flash Encryption <../security/flash-encryption> FreeRTOS SMP Changes <freertos-smp> General Notes <general-notes> High Level Interrupts <hlinterrupts> JTAG Debugging <jtag-debugging/index> Linker Script Generation <linker-script-generation> lwIP TCP/IP Stack <lwip> Partition Tables <partition-tables> :esp32: RF Calibration <RF_calibration> ROM debug console <romconsole> :esp32: Secure Boot <../security/secure-boot-v1> :esp32: Secure Boot V2 <../security/secure-boot-v2> Thread Local Storage <thread-local-storage> Tools <tools/index> ULP Coprocessor <ulp> :esp32: ULP Coprocessor (Legacy GNU Make) <ulp-legacy> Unit Testing <unit-tests> :esp32: Unit Testing (Legacy GNU Make) <unit-tests-legacy> WiFi Driver <wifi>