Migrate System to ESP-IDF 5.0

Inter-Processor Call

IPC (Inter-Processor Call) component has been moved to esp_system.

Thus, any project presenting a CMakeLists.txt file with the parameters PRIV_REQUIRES esp_ipc or REQUIRES esp_ipc, should be modified to simply remove these options as esp_system component is included by default.

ESP Clock

The old headers ESP32/clk.h, esp_clk.h have been removed.

Therefore, If you want to use the function with the prefix esp_clk please include esp_private/esp_clk.h instead.

Cache Error Interrupt

The old headers ESP32/cache_err_int.h have been removed. Please include esp_private/cache_err_int.h instead.

Brownout

The header brownout.h has been made private. ESP-IDF developers should include esp_private/brownout.h instead.

Trax

The header trax.h has been made private. ESP-IDF developers should include esp_private/trax.h instead.

ROM

Deprecated ROM related header files from components/esp32/rom/ (old include path: rom/*.h) have been deleted. Please update to use the new target-specific path from components/esp_rom/include/ESP32/ (new include path: ESP32/rom/*.h).

ESP HW Support

  • The header files soc/cpu.h have been deleted and deprecated CPU util functions have been removed. ESP-IDF developers should include esp_cpu.h instead for equivalent functions.

  • The header file esp_intr.h has been deleted. Please include esp_intr_alloc.h to allocate and manipulate interrupts.

  • The header file esp_panic.h has been deleted. ESP-IDF developers should include esp_private/panic_reason.h to get supported panic reasons. And should include esp_debug_helpers.h to use any debug related helper functions, e.g. print backtrace.

  • The header file soc_log.h is now renamed to esp_hw_log.h and all logging macros have been updated from SOC_LOGx to ESP_HW_LOGx. ESP-IDF users must use the later form.

  • The header files spinlock.h, clk_ctrl_os.h and rtc_wdt.h must now be included without the soc prefix. Eg:- #include "spinlock.h".

PSRAM

  • The header file esp_spiram.h file has been deleted. Users should use the <target>/spiram.h file instead.

  • The header file esp32/himem.h file has been deleted. Users should use the esp_himem.h file instead.

  • esp_spiram_get_chip_size has been deleted.

  • esp_spiram_get_size has been moved to esp_private/spiram_private.h

ESP Common

  • EXT_RAM_ATTR is deprecated. Use this new macro EXT_RAM_BSS_ATTR to put .bss on PSRAM.

ESP System

  • The header files esp_random.h, esp_mac.h and esp_chip_info.h, which were all previously indirectly included via the header file esp_system.h, must now be included directly. These headers are removed from esp_system.h.

  • The header file eh_frame_parser.h must now be included with a esp_private prefix like #include "esp_private/eh_frame_parser.h".

  • The header file esp_int_wdt.h must now be included with a esp_private prefix like #include "esp_private/esp_int_wdt.h".

SOC dependency

  • Public API headers who are listed in the Doxyfiles won’t expose unstable and unnecessary soc header files like soc/soc.h, soc/rtc.h. That means, the user has to explicitly include them in their code if these “missing” header files are still wanted.

  • Kconfig option LEGACY_INCLUDE_COMMON_HEADERS is also removed.

  • The header file soc/soc_memory_types.h has been deprecated. Users should use the esp_memory_utils.h instead. Including soc/soc_memory_types.h will bring a build warning like soc_memory_types.h is deprecated, please migrate to esp_memory_utils.h

APP Trace

One of the timestamp sources has changed from the legacy timer group driver to the new GPTimer. Kconfig choices like APPTRACE_SV_TS_SOURCE_TIMER00 has been changed to APPTRACE_SV_TS_SOURCE_GPTIMER. User doesn’t need to choose the group and timer ID any more.

ESP Timer

Removed the FRC2 based legacy implementation of esp_timer available on ESP32. The simpler and more efficient implementation based on the LAC timer is now the only option.

ESP image

Rename the image SPI speed enum definition. - Enum ESP_IMAGE_SPI_SPEED_80M has been renamed to ESP_IMAGE_SPI_SPEED_DIV_1. - Enum ESP_IMAGE_SPI_SPEED_40M has been renamed to ESP_IMAGE_SPI_SPEED_DIV_2. - Enum ESP_IMAGE_SPI_SPEED_26M has been renamed to ESP_IMAGE_SPI_SPEED_DIV_3. - Enum ESP_IMAGE_SPI_SPEED_20M has been renamed to ESP_IMAGE_SPI_SPEED_DIV_4.

Task Watchdog Timers

  • The API for esp_task_wdt_init() has changed as follows

    • Configuration is now passed as a configuration structure.

    • The function will now handle subscribing of the idle tasks if configured to do so