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SourceVuESP-IDF Framework and ExamplesESP-IDFspi_bus_get_max_transaction_len()

spi_bus_get_max_transaction_len() function

Get max length (in bytes) of one transaction

Syntax

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Summary

Declaration

Definition

from spi_master.h:407

esp_err_t spi_bus_get_max_transaction_len(spi_host_device_t host_id, size_t *max_bytes);

Implemented in spi_master.c:1462

Arguments

Argument

Description

host_id

SPI peripheral

max_bytes

Max length of one transaction, in bytes

Return value

- ESP_OK: On success - ESP_ERR_INVALID_ARG: Invalid argument

Examples

References

from examples