FLASH Memory Programming functions.
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FLASH Memory Programming functions.
===============================================================================
FLASH Memory Programming functions
===============================================================================
This group includes the following functions:
- void FLASH_Unlock(void)
- void FLASH_Lock(void)
- FLASH_Status FLASH_EraseSector(uint32_t FLASH_Sector, uint8_t VoltageRange)
- FLASH_Status FLASH_EraseAllSectors(uint8_t VoltageRange)
- FLASH_Status FLASH_ProgramDoubleWord(uint32_t Address, uint64_t Data)
- FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data)
- FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data)
- FLASH_Status FLASH_ProgramByte(uint32_t Address, uint8_t Data)
Any operation of erase or program should follow these steps:
1. Call the FLASH_Unlock() function to enable the FLASH control register access
2. Call the desired function to erase sector(s) or program data
3. Call the FLASH_Lock() function to disable the FLASH control register access
(recommended to protect the FLASH memory against possible unwanted operation)
Erases all FLASH Sectors.
- Parameters
-
| VoltageRange,: | The device voltage range which defines the erase parallelism. This parameter can be one of the following values:
- VoltageRange_1: when the device voltage range is 1.8V to 2.1V, the operation will be done by byte (8-bit)
- VoltageRange_2: when the device voltage range is 2.1V to 2.7V, the operation will be done by half word (16-bit)
- VoltageRange_3: when the device voltage range is 2.7V to 3.6V, the operation will be done by word (32-bit)
- VoltageRange_4: when the device voltage range is 2.7V to 3.6V + External Vpp, the operation will be done by double word (64-bit)
|
- Return values
-
| FLASH | Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_ERROR_OPERATION or FLASH_COMPLETE. |
| FLASH_Status FLASH_EraseSector |
( |
uint32_t |
FLASH_Sector, |
|
|
uint8_t |
VoltageRange |
|
) |
| |
Erases a specified FLASH Sector.
- Parameters
-
| FLASH_Sector,: | The Sector number to be erased. This parameter can be a value between FLASH_Sector_0 and FLASH_Sector_11 |
| VoltageRange,: | The device voltage range which defines the erase parallelism. This parameter can be one of the following values:
- VoltageRange_1: when the device voltage range is 1.8V to 2.1V, the operation will be done by byte (8-bit)
- VoltageRange_2: when the device voltage range is 2.1V to 2.7V, the operation will be done by half word (16-bit)
- VoltageRange_3: when the device voltage range is 2.7V to 3.6V, the operation will be done by word (32-bit)
- VoltageRange_4: when the device voltage range is 2.7V to 3.6V + External Vpp, the operation will be done by double word (64-bit)
|
- Return values
-
| FLASH | Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_ERROR_OPERATION or FLASH_COMPLETE. |
Locks the FLASH control register access.
- Parameters
-
- Return values
-
| FLASH_Status FLASH_ProgramByte |
( |
uint32_t |
Address, |
|
|
uint8_t |
Data |
|
) |
| |
Programs a byte (8-bit) at a specified address.
- Note
- This function can be used within all the device supply voltage ranges.
- Parameters
-
| Address,: | specifies the address to be programmed. This parameter can be any address in Program memory zone or in OTP zone. |
| Data,: | specifies the data to be programmed. |
- Return values
-
| FLASH | Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_ERROR_OPERATION or FLASH_COMPLETE. |
| FLASH_Status FLASH_ProgramDoubleWord |
( |
uint32_t |
Address, |
|
|
uint64_t |
Data |
|
) |
| |
Programs a double word (64-bit) at a specified address.
- Note
- This function must be used when the device voltage range is from 2.7V to 3.6V and an External Vpp is present.
- Parameters
-
| Address,: | specifies the address to be programmed. |
| Data,: | specifies the data to be programmed. |
- Return values
-
| FLASH | Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_ERROR_OPERATION or FLASH_COMPLETE. |
| FLASH_Status FLASH_ProgramHalfWord |
( |
uint32_t |
Address, |
|
|
uint16_t |
Data |
|
) |
| |
Programs a half word (16-bit) at a specified address.
- Note
- This function must be used when the device voltage range is from 2.1V to 3.6V.
- Parameters
-
| Address,: | specifies the address to be programmed. This parameter can be any address in Program memory zone or in OTP zone. |
| Data,: | specifies the data to be programmed. |
- Return values
-
| FLASH | Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_ERROR_OPERATION or FLASH_COMPLETE. |
| FLASH_Status FLASH_ProgramWord |
( |
uint32_t |
Address, |
|
|
uint32_t |
Data |
|
) |
| |
Programs a word (32-bit) at a specified address.
- Parameters
-
| Address,: | specifies the address to be programmed. This parameter can be any address in Program memory zone or in OTP zone. |
- Note
- This function must be used when the device voltage range is from 2.7V to 3.6V.
- Parameters
-
| Data,: | specifies the data to be programmed. |
- Return values
-
| FLASH | Status: The returned value can be: FLASH_BUSY, FLASH_ERROR_PROGRAM, FLASH_ERROR_WRP, FLASH_ERROR_OPERATION or FLASH_COMPLETE. |
| void FLASH_Unlock |
( |
void |
| ) |
|
Unlocks the FLASH control register access.
- Parameters
-
- Return values
-
1.8.3.1