QSPI: Quad Serial Peripheral Interface

Overview

The MCUXpresso SDK provides a peripheral driver for the Quad Serial Peripheral Interface (QSPI) module of MCUXpresso SDK devices.

QSPI driver includes functional APIs and EDMA transactional APIs.

Functional APIs are feature/property target low level APIs. Functional APIs can be used for QSPI initialization/configuration/operation for optimization/customization purpose. Using the functional API requires the knowledge of the QSPI peripheral and how to organize functional APIs to meet the application requirements. All functional API use the peripheral base address as the first parameter. QSPI functional operation groups provide the functional API set.

Transactional APIs are transaction target high level APIs. Transactional APIs can be used to enable the peripheral and in the application if the code size and performance of transactional APIs satisfy the requirements. If the code size and performance are a critical requirement, see the transactional API implementation and write a custom code. All transactional APIs use the qspi_handle_t as the first parameter. Initialize the handle by calling the QSPI_TransferTxCreateHandleEDMA() or QSPI_TransferRxCreateHandleEDMA() API.

Modules
	Quad Serial Peripheral Interface DMA Driver
	Quad Serial Peripheral Interface Driver
	Quad Serial Peripheral Interface EDMA Driver