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SourceVuESP-IDF Framework and Exampleshost sampleessl_sdio_get_packet()

essl_sdio_get_packet() function

Get a packet from an ESSL SDIO slave.

Syntax

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Summary

Declaration

Definition

from essl_sdio.h:125

esp_err_t essl_sdio_get_packet(void *arg, void *out_data, size_t size, uint32_t wait_ms);

Implemented in essl_sdio.c:323

Arguments

Argument

Description

arg

Context of the component.

out_data

Data output address

size

The size of the output buffer, if the buffer is smaller than the size of data to receive from slave, the driver returns ``ESP_ERR_NOT_FINISHED``

wait_ms

Time to wait before timeout, in ms.

Return value

- ESP_OK Success, all the data are read from the slave. - ESP_ERR_NOT_FINISHED Read success, while there're data remaining. - One of the error codes from SDMMC host controller

References

Code

Location

Referrer

esp_err_t essl_sdio_get_packet(void *arg, void *out_data, size_t size, uint32_t wait_ms)

essl_sdio.c:323

esp_err_t essl_sdio_get_packet(void *arg, void *out_data, size_t size, uint32_t wait_ms);

essl_sdio.h:125

*dev = ESSL_SDIO_DEFAULT_CONTEXT();

essl_sdio.c:119

essl_sdio_init_dev()

Call Tree

essl_sdio_get_packet() calls 6 functions:

essl_sdio_get_packet()

esp_log_timestamp()

esp_log_write()

essl_sdio_get_rx_data_size()

essl_sdio_update_rx_data_size()

sdmmc_io_read_bytes()

sdmmc_io_read_blocks()

Data Use

essl_sdio_get_packet() reads 8 variables and writes 2 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

TAG

essl_sdio_context_t::rx_got_bytes

essl_sdio_context_t::card

essl_sdio_get_packet()

essl_sdio_init_dev()

essl_sdio_context_t::rx_got_bytes

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