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SourceVuESP-IDF Framework and ExamplesESP-IDFsdmmc_host_set_bus_ddr_mode()

sdmmc_host_set_bus_ddr_mode() function

Enable or disable DDR mode of SD interface

Syntax

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Summary

Declaration

Definition

from sdmmc_host.h:150

esp_err_t sdmmc_host_set_bus_ddr_mode(int slot, bool ddr_enabled);

Implemented in sdmmc_host.c:973

Arguments

Argument

Description

slot

slot number (SDMMC_HOST_SLOT_0 or SDMMC_HOST_SLOT_1)

ddr_enabled

enable or disable DDR mode

Return value

- ESP_OK on success - ESP_ERR_NOT_SUPPORTED if DDR mode is not supported on this slot

Examples

sdmmc_host_set_bus_ddr_mode() is referenced by 7 libraries and example projects:

simple_sniffer sample

emmc sample

perf_benchmark sample

References

from 0/7 examples

Code

Location

esp_err_t sdmmc_host_set_bus_ddr_mode(int slot, bool ddr_enabled)

sdmmc_host.c:973

esp_err_t sdmmc_host_set_bus_ddr_mode(int slot, bool ddr_enabled);

sdmmc_host.h:150

Call Tree

from 0/7 examples

sdmmc_host_set_bus_ddr_mode() calls 3 functions:

sdmmc_host_set_bus_ddr_mode()

esp_log_timestamp()

esp_log_write()

sdmmc_ll_enable_ddr_mode()

Data Use

from 0/7 examples

sdmmc_host_set_bus_ddr_mode() reads 11 variables:

esp_log_level_t::ESP_LOG_ERROR

esp_log_level_t::ESP_LOG_WARN

esp_log_level_t::ESP_LOG_INFO

esp_log_level_t::ESP_LOG_DEBUG

esp_log_level_t::ESP_LOG_VERBOSE

sdmmc_hal_context_t::dev

TAG

slot_ctx_t::slot_width

host_ctx_t::hal

host_ctx_t::slot_ctx

s_host_ctx

sdmmc_host_set_bus_ddr_mode()

Class Tree

from 0/7 examples

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Override Tree

from 0/7 examples

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Implementations

from 0/7 examples

sdmmc_host_set_bus_ddr_mode() is implemented by 1 functions:

sdmmc_host_set_bus_ddr_mode()

sdmmc_host_t::set_bus_ddr_mode

Instances

from 0/7 examples

Lifecycle

from 0/7 examples

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