ESP-IDF
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Outline
#include <stdint.h>
bootloader_enable_qio_mode();
bootloader_read_flash_id();
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/bootloader_support/bootloader_flash/include/flash_qio_mode.h
 
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/* * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #pragma once #include <stdint.h> #ifdef __cplusplus extern "C" { #endif /** @brief Enable Quad I/O mode in bootloader (if configured) * * Queries attached SPI flash ID and sends correct SPI flash * commands to enable QIO or QOUT mode, then enables this mode. *//* ... */ void bootloader_enable_qio_mode(void); /** * @brief Read flash ID by sending 0x9F command * @return flash raw ID * mfg_id = (ID >> 16) & 0xFF; flash_id = ID & 0xffff; *//* ... */ uint32_t bootloader_read_flash_id(void); #ifdef __cplusplus }{...} #endif
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