# Serial Flash Library Release Notes
Provides functions for interacting with an external flash connected through its Single/Dual/Quad/Octal SPI interface.

### What's Included?
* APIs for Read/Write/Erase operations
* Supports Execute-in-Place (XIP) mode of operation
* Accepts the configuration generated by the QSPI Configurator tool
* Allows for providing information to the programming tool to program the external memory.

### What Changed?
#### v1.4.2
* Added support for CAT1C devices.
#### v1.3.0
* Added support for CAT1B device - CYW20829.
#### v1.2.0
* Added support for HAL API v1 or v2
#### v1.1.0
* Added the following functions:
    - `cy_serial_flash_qspi_read_async()` - Supports asynchronous (non-blocking) read using fixed DMA resources. Refer to the API reference manual for details on the list of devices supported for DMA operation and the exact DMA resources used.
    - `cy_serial_flash_qspi_abort_read()` - Aborts an ongoing asynchronous read operation
    - `cy_serial_flash_qspi_set_dma_interrupt_priority()` - Changes the DMA interrupt priority
* Implemented thread-safety for use with multi-threaded RTOS environment using the [abstraction-rtos](https://github.com/infineon/abstraction-rtos) library
    - Add `DEFINES=CY_SERIAL_FLASH_QSPI_THREAD_SAFE` in the Makefile to enable thread-safety
* Updated `cy_serial_flash_qspi_get_erase_size()` to support memories with hybrid sectors
#### v1.0.2
* Added new function `cy_serial_flash_qspi_get_prog_size()` to get the programming size
* Minor documentation updates
#### v1.0.1
* Minor update for documentation & branding
#### v1.0.0
* Initial release

### Supported Software and Tools
This version of the Serial Flash library was validated for compatibility with the following Software and Tools:

| Software and Tools                        | Version |
| :---                                      | :----:  |
| ModusToolbox™ Software Environment        | 3.0.0   |
| GCC Compiler                              | 11.3.1  |
| IAR Compiler                              | 9.30.1  |
| ARM Compiler 6                            | 6.11    |

Minimum required ModusToolbox™ Software Environment: v2.0

### More information

* [API Reference Guide](https://infineon.github.io/serial-flash/html/index.html)
* [Cypress Semiconductor, an Infineon Technologies Company](http://www.cypress.com)
* [Infineon GitHub](https://github.com/infineon)
* [ModusToolbox™](https://www.cypress.com/products/modustoolbox-software-environment)
* [PSoC™ 6 Code Examples using ModusToolbox™ IDE](https://github.com/infineon/Code-Examples-for-ModusToolbox-Software)
* [ModusToolbox™ Software](https://github.com/Infineon/modustoolbox-software)
* [PSoC™ 6 Resources - KBA223067](https://community.cypress.com/docs/DOC-14644)

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