ESP-IDF
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Outline
#include <stdint.h>
#include <string.h>
#include "sdkconfig.h"
#include "esp_attr.h"
#include "esp_err.h"
#include "esp_check.h"
#include "esp_system.h"
#include "esp_log.h"
#include "spi_flash_mmap.h"
#include "esp_flash_internal.h"
#include "esp_newlib.h"
#include "esp_xt_wdt.h"
#include "esp_cpu.h"
#include "esp_private/startup_internal.h"
#include "soc/soc_caps.h"
#include "hal/wdt_hal.h"
#include "hal/uart_types.h"
#include "hal/uart_ll.h"
#include "private/esp_coexist_internal.h"
#include "esp_pm.h"
#include "esp_private/pm_impl.h"
#include "esp_private/esp_clk.h"
#include "esp_private/spi_flash_os.h"
#include "esp_private/brownout.h"
#include "esp_rom_caps.h"
#include "esp_rom_sys.h"
#include "hal/brownout_ll.h"
TAG
esp_system_include_startup_funcs()
esp_system_init_fn_init_show_cpu_freq
esp_system_init_fn_init_brownout
esp_system_init_fn_init_newlib_time
esp_system_init_fn_init_flash
esp_system_init_fn_init_coexist
esp_system_init_fn_init_disable_rtc_wdt
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/esp_system/startup_funcs.c
 
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/* * SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #include <stdint.h> #include <string.h> #include "sdkconfig.h" #include "esp_attr.h" #include "esp_err.h" #include "esp_check.h" #include "esp_system.h" #include "esp_log.h" #include "spi_flash_mmap.h" #include "esp_flash_internal.h" #include "esp_newlib.h" #include "esp_xt_wdt.h" #include "esp_cpu.h" #include "esp_private/startup_internal.h" #include "soc/soc_caps.h" #include "hal/wdt_hal.h" #include "hal/uart_types.h" #include "hal/uart_ll.h"18 includes #if CONFIG_SW_COEXIST_ENABLE || CONFIG_EXTERNAL_COEX_ENABLE #include "private/esp_coexist_internal.h" #endif #if CONFIG_PM_ENABLE #include "esp_pm.h" #include "esp_private/pm_impl.h"/* ... */ #endif #include "esp_private/esp_clk.h" #include "esp_private/spi_flash_os.h" #include "esp_private/brownout.h" #include "esp_rom_caps.h" #include "esp_rom_sys.h"5 includes #if SOC_BOD_SUPPORTED #include "hal/brownout_ll.h" #endif // Using the same tag as in startup.c to keep the logs unchanged static const char* TAG = "cpu_start"; // Hook to force the linker to include this file void esp_system_include_startup_funcs(void) { }{ ... } // [refactor-todo] Most of these init functions should be moved to the respective components. ESP_SYSTEM_INIT_FN(init_show_cpu_freq, CORE, BIT(0), 10) { ESP_EARLY_LOGI(TAG, "Pro cpu start user code"); int cpu_freq = esp_clk_cpu_freq(); ESP_EARLY_LOGI(TAG, "cpu freq: %d Hz", cpu_freq); return ESP_OK; }{ ... } ESP_SYSTEM_INIT_FN(init_brownout, CORE, BIT(0), 104) { // [refactor-todo] leads to call chain rtc_is_register (driver) -> esp_intr_alloc (esp32/esp32s2) -> // malloc (newlib) -> heap_caps_malloc (heap), so heap must be at least initialized #if CONFIG_ESP_BROWNOUT_DET esp_brownout_init(); #else #if SOC_CAPS_NO_RESET_BY_ANA_BOD brownout_ll_ana_reset_enable(false); #endif // SOC_CAPS_NO_RESET_BY_ANA_BOD/* ... */ #endif // CONFIG_ESP_BROWNOUT_DET return ESP_OK; }{ ... } ESP_SYSTEM_INIT_FN(init_newlib_time, CORE, BIT(0), 105) { esp_newlib_time_init(); return ESP_OK; }{ ... } #if !CONFIG_APP_BUILD_TYPE_PURE_RAM_APP ESP_SYSTEM_INIT_FN(init_flash, CORE, BIT(0), 130) { #if CONFIG_SPI_FLASH_ROM_IMPL spi_flash_rom_impl_init(); #endif esp_flash_app_init(); esp_err_t flash_ret = esp_flash_init_default_chip(); assert(flash_ret == ESP_OK); (void)flash_ret; #if CONFIG_SPI_FLASH_BROWNOUT_RESET spi_flash_needs_reset_check(); #endif // CONFIG_SPI_FLASH_BROWNOUT_RESET return ESP_OK; }{ ... } #endif // !CONFIG_APP_BUILD_TYPE_PURE_RAM_APP #if CONFIG_ESP_XT_WDT ESP_SYSTEM_INIT_FN(init_xt_wdt, CORE, BIT(0), 170) { esp_xt_wdt_config_t cfg = { .timeout = CONFIG_ESP_XT_WDT_TIMEOUT, .auto_backup_clk_enable = CONFIG_ESP_XT_WDT_BACKUP_CLK_ENABLE, }{...}; return esp_xt_wdt_init(&cfg); }{...} #endif // CONFIG_ESP_XT_WDT #if CONFIG_PM_ENABLE ESP_SYSTEM_INIT_FN(init_pm, SECONDARY, BIT(0), 201) { esp_pm_impl_init(); return ESP_OK; }{...} #endif // CONFIG_PM_ENABLE #if SOC_APB_BACKUP_DMA ESP_SYSTEM_INIT_FN(init_apb_dma, SECONDARY, BIT(0), 203) { extern void esp_apb_backup_dma_lock_init(void); esp_apb_backup_dma_lock_init(); return ESP_OK; }{...} #endif #if CONFIG_SW_COEXIST_ENABLE || CONFIG_EXTERNAL_COEX_ENABLE ESP_SYSTEM_INIT_FN(init_coexist, SECONDARY, BIT(0), 204) { esp_coex_adapter_register(&g_coex_adapter_funcs); coex_pre_init(); return ESP_OK; }{ ... } #endif // CONFIG_SW_COEXIST_ENABLE || CONFIG_EXTERNAL_COEX_ENABLE #ifndef CONFIG_BOOTLOADER_WDT_DISABLE_IN_USER_CODE ESP_SYSTEM_INIT_FN(init_disable_rtc_wdt, SECONDARY, BIT(0), 999) { wdt_hal_context_t rtc_wdt_ctx = RWDT_HAL_CONTEXT_DEFAULT(); wdt_hal_write_protect_disable(&rtc_wdt_ctx); wdt_hal_disable(&rtc_wdt_ctx); wdt_hal_write_protect_enable(&rtc_wdt_ctx); return ESP_OK; }{ ... } #endif // CONFIG_BOOTLOADER_WDT_DISABLE_IN_USER_CODE
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