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SourceVuESP-IDF Framework and ExamplesESP-IDFesp_rom_efuse_get_flash_gpio_info()

esp_rom_efuse_get_flash_gpio_info() function

Get SPI Flash GPIO pin configurations from eFuse

Syntax

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Summary

Declaration

from esp_rom_efuse.h:41

uint32_t esp_rom_efuse_get_flash_gpio_info(void);

Return value

uint32_t - 0: default SPI pins (ESP_ROM_EFUSE_FLASH_DEFAULT_SPI) - 1: default HSPI pins (ESP_ROM_EFUSE_FLASH_DEFAULT_HSPI) - Others: Customized pin configuration mask. Pins are encoded as per the EFUSE_SPICONFIG_RET_SPICLK, EFUSE_SPICONFIG_RET_SPIQ, EFUSE_SPICONFIG_RET_SPID, EFUSE_SPICONFIG_RET_SPICS0, EFUSE_SPICONFIG_RET_SPIHD macros.

Notes

WP pin (for quad I/O modes) is not saved in eFuse and not returned by this function.

References

Code

Location

Referrer

uint32_t esp_rom_efuse_get_flash_gpio_info(void);

esp_rom_efuse.h:41

const uint32_t spiconfig = esp_rom_efuse_get_flash_gpio_info();

bootloader_flash_config_esp32.c:99

bootloader_flash_gpio_config()

const uint32_t spiconfig = esp_rom_efuse_get_flash_gpio_info();

bootloader_flash_config_esp32.c:213

bootloader_configure_spi_pins()

const uint32_t spiconfig = esp_rom_efuse_get_flash_gpio_info();

esp_psram_impl_quad.c:911

esp_psram_impl_enable()

spiconfig = esp_rom_efuse_get_flash_gpio_info();

flash_ops.c:271

esp_mspi_get_io()

esp_rom_spiflash_select_qio_pins(bootloader_flash_get_wp_pin(), esp_rom_efuse_get_flash_gpio_info());

flash_qio_mode.c:110

s_flash_set_qio_pins()

Call Tree

esp_rom_efuse_get_flash_gpio_info() is called by 5 functions:

s_flash_set_qio_pins()

bootloader_flash_gpio_config()

bootloader_configure_spi_pins()

esp_mspi_get_io()

esp_psram_impl_enable()

esp_rom_efuse_get_flash_gpio_info()

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