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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_read()

i2s_read() function

Syntax

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Summary

Declaration

from i2s_legacy.c:1804

esp_err_t i2s_read(i2s_port_t i2s_num, void *dest, size_t size, size_t *bytes_read, TickType_t ticks_to_wait);

Arguments

Argument

i2s_num

dest

size

bytes_read

ticks_to_wait

References

Code

Location

esp_err_t i2s_read(i2s_port_t i2s_num, void *dest, size_t size, size_t *bytes_read, TickType_t ticks_to_wait)

i2s_legacy.c:1804

Call Tree

i2s_read() calls 7 functions:

i2s_read()

esp_log_timestamp()

esp_log_write()

xQueueGenericSend()

xQueueReceive()

xQueueSemaphoreTake()

esp_pm_lock_acquire()

esp_pm_lock_release()

Data Use

i2s_read() reads 14 variables and writes 1 variable:

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::buf_size

i2s_dma_t::rw_pos

i2s_dma_t::curr_ptr

i2s_dma_t::queue

i2s_obj_t::pm_lock

i2s_read()

i2s_dma_t::rw_pos

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Lifecycle

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