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UM1581

FLASH Memory (FLASH)

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11.2.8.4 FLASH_OB_Erase

Function Name

FLASH_Status FLASH_OB_Erase ( void )

Function Description

Erases the FLASH option bytes.

Parameters

 None.

Return values

 FLASH Status: The returned value can be:

FLASH_ERROR_PG, FLASH_ERROR_WRP,

FLASH_COMPLETE or FLASH_TIMEOUT.

Notes

 This functions erases all option bytes except the Read

protection (RDP).

11.2.8.5 FLASH_OB_EnableWRP

Function Name

FLASH_Status FLASH_OB_EnableWRP ( uint32_t OB_WRP)

Function Description

Write protects the desired pages.

Parameters

 OB_WRP : specifies the address of the pages to be write

protected. This parameter can be:

 value :

 OB_WRP_AllPages :

Return values

 FLASH Status: The returned value can be:

FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP,

FLASH_COMPLETE or FLASH_TIMEOUT.

Notes

 To correctly run this function, the FLASH_OB_Unlock()

function must be called before.

 Call the FLASH_OB_Lock() to disable the flash control

the FLASH memory against possible unwanted operation)

11.2.8.6 FLASH_OB_RDPConfig

Function Name

FLASH_Status FLASH_OB_RDPConfig ( uint8_t OB_RDP)

ST STM32F31xx User Manual

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