ST STM32F31xx

UM1581
FLASH Memory (FLASH)
DocID023800 Rev 1
229/584
Function Description
Programs a half word at a specified Option Byte Data address.
Parameters
 Address : specifies the address to be programmed. This
parameter can be 0x1FFFF804 or 0x1FFFF806.
 Data : specifies the data to be programmed.
Return values
 FLASH Status: The returned value can be:
FLASH_ERROR_PG, 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 register access and the option bytes
(recommended to protect the FLASH memory against
possible unwanted operation)
11.2.8.13 FLASH_OB_GetUser
Function Name
uint8_t FLASH_OB_GetUser ( void )
Function Description
Returns the FLASH User Option Bytes values.
Parameters
 None.
Return values
 The FLASH User Option Bytes .
Notes
 None.
11.2.8.14 FLASH_OB_GetWRP
Function Name
uint32_t FLASH_OB_GetWRP ( void )
Function Description
Returns the FLASH Write Protection Option Bytes value.
Parameters
 None.
Return values
 The FLASH Write Protection Option Bytes value
Notes
 None.