:link_to_translation:`zh_CN:[中文]`
.. toctree::
:maxdepth: 1
Application Level Tracing <app_trace>
Application Startup Flow <startup>
:SOC_BT_SUPPORTED: BluFi <blufi>
Bootloader <bootloader>
Build System <build-system>
:esp32: Build System (Legacy GNU Make) <build-system-legacy>
Deep Sleep Wake Stubs <deep-sleep-stub>
:SOC_USB_OTG_SUPPORTED: Device Firmware Upgrade through USB <dfu>
Error Handling <error-handling>
:SOC_BT_SUPPORTED: ESP-BLE-MESH <esp-ble-mesh/ble-mesh-index>
ESP-WIFI-MESH <esp-wifi-mesh>
Core Dump <core_dump>
Event Handling <event-handling>
:SOC_SPIRAM_SUPPORTED: External SPI-connected RAM <external-ram>
Fatal Errors <fatal-errors>
Flash Encryption <../security/flash-encryption>
:esp32s3: Flash and External SPI RAM Configuration <flash_psram_config>
FreeRTOS SMP Changes <freertos-smp>
Hardware Abstraction <hardware-abstraction>
:CONFIG_IDF_TARGET_ARCH_XTENSA: High Level Interrupts <hlinterrupts>
JTAG Debugging <jtag-debugging/index>
Linker Script Generation <linker-script-generation>
Memory Types <memory-types>
lwIP TCP/IP Stack <lwip>
OpenThread <openthread>
Partition Tables <partition-tables>
Performance <performance/index>
RF Calibration <RF_calibration>
:esp32: Secure Boot <../security/secure-boot-v1>
Secure Boot V2 <../security/secure-boot-v2>
Thread Local Storage <thread-local-storage>
Tools <tools/index>
:SOC_ULP_SUPPORTED: ULP Coprocessor <ulp>
:esp32: ULP Coprocessor (Legacy GNU Make) <ulp-legacy>
:SOC_RISCV_COPROC_SUPPORTED: ULP-RISC-V Coprocessor <ulp-risc-v>
Unit Testing (Target) <unit-tests>
Unit Testing (Linux Host) <linux-host-testing>
:esp32: Unit Testing (Legacy GNU Make) <unit-tests-legacy>
:SOC_USB_OTG_SUPPORTED: USB OTG Console <usb-otg-console>
:SOC_USB_SERIAL_JTAG_SUPPORTED: USB Serial/JTAG Controller Console <usb-serial-jtag-console>
Wi-Fi Driver <wifi>
Wi-Fi Security <wifi-security>