ESP-IDF
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Outline
#include "sdkconfig.h"
#include "esp_image_format.h"
bootloader_flash_update_id();
bootloader_flash_update_size(uint32_t);
bootloader_flash_cs_timing_config();
bootloader_flash_clock_config(const esp_image_header_t *);
bootloader_flash_gpio_config(const esp_image_header_t *);
bootloader_flash_dummy_config(const esp_image_header_t *);
bootloader_flash_get_wp_pin();
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/bootloader_support/bootloader_flash/include/bootloader_flash_config.h
 
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/* * SPDX-FileCopyrightText: 2018-2022 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #pragma once #include "sdkconfig.h" #include "esp_image_format.h" #ifdef __cplusplus extern "C" { #endif /** * @brief Update the flash id in g_rom_flashchip(global esp_rom_spiflash_chip_t structure). * * @return None *//* ... */ void bootloader_flash_update_id(void); /** * @brief Update the flash size in g_rom_flashchip (global esp_rom_spiflash_chip_t structure). * * @param size The size to store, in bytes. * @return None *//* ... */ void bootloader_flash_update_size(uint32_t size); /** * @brief Set the flash CS setup and hold time. * * @note CS setup time is recomemded to be 1.5T, and CS hold time is recommended to be 2.5T. * cs_setup = 1, cs_setup_time = 0; cs_hold = 1, cs_hold_time = 1. * * @return None *//* ... */ void bootloader_flash_cs_timing_config(void); /** * @brief Configure SPI flash clock. * * @note This function only set clock frequency for SPI0. * * @param pfhdr Pointer to App image header, from where to fetch flash settings. * * @return None *//* ... */ void bootloader_flash_clock_config(const esp_image_header_t* pfhdr); /** * @brief Configure SPI flash gpio, include the IO matrix and drive strength configuration. * * @param pfhdr Pointer to App image header, from where to fetch flash settings. * * @return None *//* ... */ void bootloader_flash_gpio_config(const esp_image_header_t* pfhdr); #ifdef CONFIG_IDF_TARGET_ESP32 /** * @brief Configure SPI flash read dummy based on different mode and frequency. * * @param pfhdr Pointer to App image header, from where to fetch flash settings. * * @return None *//* ... */ void bootloader_flash_dummy_config(const esp_image_header_t* pfhdr);/* ... */ #else // The meaning has changed on this chip. Deprecated, Call `bootloader_configure_spi_pins()` and `bootloader_flash_set_dummy_out()` directly. void bootloader_flash_dummy_config(const esp_image_header_t* pfhdr) __attribute__((deprecated));/* ... */ #endif #ifdef CONFIG_IDF_TARGET_ESP32 /** * @brief Return the pin number used for custom SPI flash and/or SPIRAM WP pin * * Can be determined by eFuse values in most cases, or overriden in configuration * * This value is only meaningful if the other SPI flash pins are overriden via eFuse. * * This value is only meaningful if flash is set to QIO or QOUT mode, or if * SPIRAM is enabled. * * @return Pin number to use, or -1 if the default should be kept *//* ... */ int bootloader_flash_get_wp_pin(void);/* ... */ #endif #ifdef __cplusplus }{...} #endif
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