:orphan:

.. title:: SPI_FLASH_AT45_USE_READ_MODIFY_WRITE

.. option:: CONFIG_SPI_FLASH_AT45_USE_READ_MODIFY_WRITE

*Use Read-Modify-Write command in flash_write()*

Type: ``bool``

Help
====

Use the Read-Modify-Write command (opcode 0x58) instead of the default
Main Memory Program without Built-In Erase (opcode 0x02). This allows
writing of data without prior erasing of corresponding pages.

Direct dependencies
===================

\ :option:`SPI_FLASH_AT45 <CONFIG_SPI_FLASH_AT45>` && \ :option:`FLASH <CONFIG_FLASH>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- y

Kconfig definition
==================

.. highlight:: kconfig

At ``drivers/flash/Kconfig.at45:22``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:32`` → ``drivers/Kconfig:60`` → ``drivers/flash/Kconfig:61``

Menu path: (Top) → Device Drivers → Flash hardware support → AT45 family flash driver

.. parsed-literal::

    config SPI_FLASH_AT45_USE_READ_MODIFY_WRITE
    	bool "Use Read-Modify-Write command in flash_write()"
    	default y
    	depends on \ :option:`SPI_FLASH_AT45 <CONFIG_SPI_FLASH_AT45>` && \ :option:`FLASH <CONFIG_FLASH>`
    	help
    	  Use the Read-Modify-Write command (opcode 0x58) instead of the default
    	  Main Memory Program without Built-In Erase (opcode 0x02). This allows
    	  writing of data without prior erasing of corresponding pages.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*