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SourceVuESP-IDF Framework and ExamplesESP-IDFesp_psram_extram_reserve_dma_pool()

esp_psram_extram_reserve_dma_pool() function

Reserve a pool of internal memory for specific DMA/internal allocations

Syntax

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Summary

Declaration

Definition

from esp_psram_extram.h:46

esp_err_t esp_psram_extram_reserve_dma_pool(size_t size);

Implemented in esp_psram.c:407

Arguments

Argument

Description

size

Size of reserved pool in bytes

Return value

- ESP_OK: On success - ESP_ERR_NO_MEM: When no memory available for pool

Examples

esp_psram_extram_reserve_dma_pool() is referenced by 1 libraries and example projects:

FreeRTOS

References

from 0/1 examples

Code

Location

esp_err_t esp_psram_extram_reserve_dma_pool(size_t size)

esp_psram.c:407

esp_err_t esp_psram_extram_reserve_dma_pool(size_t size);

esp_psram_extram.h:46

Call Tree

from 0/1 examples

esp_psram_extram_reserve_dma_pool() calls 6 functions:

esp_psram_extram_reserve_dma_pool()

esp_log_get_default_level()

esp_log_timestamp()

heap_caps_malloc()

heap_caps_get_largest_free_block()

esp_rom_printf()

heap_caps_add_region_with_caps()

Data Use

from 0/1 examples

esp_psram_extram_reserve_dma_pool() reads 3 variables:

esp_log_level_t::ESP_LOG_INFO

esp_log_level_t::ESP_LOG_DEBUG

TAG

esp_psram_extram_reserve_dma_pool()

Class Tree

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Override Tree

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Implementations

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Instances

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Lifecycle

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