sdmmc_host_init_slot() function

Initialize given slot of SDMMC peripheral On the ESP32, SDMMC peripheral has two slots: - Slot 0: 8-bit wide, maps to HS1_* signals in PIN MUX - Slot 1: 4-bit wide, maps to HS2_* signals in PIN MUX Card detect and write protect signals can be routed to arbitrary GPIOs using GPIO matrix.

Syntax

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Summary

Declaration

Definition

from sdmmc_host.h:99

esp_err_t sdmmc_host_init_slot(int slot, const sdmmc_slot_config_t* slot_config);

Implemented in sdmmc_host.c:618

Arguments

Argument

Declared as

Description

slot

int

slot number (SDMMC_HOST_SLOT_0 or SDMMC_HOST_SLOT_1)

slot_config

const sdmmc_slot_config_t*

additional configuration for the slot

Return value

- ESP_OK on success - ESP_ERR_INVALID_STATE if host has not been initialized using sdmmc_host_init - ESP_ERR_INVALID_ARG if GPIO pins from slot_config are not valid

Notes

This function is not thread safe

Examples

sdmmc_host_init_slot() is referenced by 3 libraries and example projects:

References

from examples

sdmmc_host_init_slot() function

Syntax

Arguments

Return value

Notes

Examples

References

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