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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_create_dma_object()

i2s_create_dma_object() function

Syntax

Show:

Summary

Declaration

from i2s_legacy.c:665

static esp_err_t i2s_create_dma_object(i2s_port_t i2s_num, i2s_dma_t **dma);

Arguments

Argument

Declared as

i2s_num

dma

References

Code

Location

Referrer

static esp_err_t i2s_create_dma_object(i2s_port_t i2s_num, i2s_dma_t **dma)

i2s_legacy.c:665

ESP_RETURN_ON_ERROR(i2s_create_dma_object(i2s_num, &p_i2s[i2s_num]->tx), TAG, "I2S TX DMA object create failed");

i2s_legacy.c:1293

i2s_dma_object_init()

ESP_RETURN_ON_ERROR(i2s_create_dma_object(i2s_num, &p_i2s[i2s_num]->rx), TAG, "I2S RX DMA object create failed");

i2s_legacy.c:1297

i2s_dma_object_init()

Call Tree

i2s_create_dma_object() is called by 1 function and calls 7 functions:

i2s_dma_object_init()

i2s_create_dma_object()

esp_log_timestamp()

esp_log_write()

heap_caps_calloc()

xQueueCreateMutex()

xQueueGenericCreate()

i2s_destroy_dma_object()

Data Use

i2s_create_dma_object() reads 12 variables and writes 4 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

i2s_dma_t::desc

i2s_obj_t::dma_desc_num

i2s_dma_t::queue

i2s_create_dma_object()

i2s_dma_t::desc

i2s_dma_t::queue

Class Tree

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Override Tree

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Implementations

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Instances

Lifecycle

i2s_create_dma_object() frees 1 types:

i2s_create_dma_object()