Запись во FLASH STM32F4

[STM32F4]

Всем доброго дня)Программеры подскажите, что я не так делаю при записи во FLASH(STM32F4) ?
Я уже и с библиотеками и просто на CMSIS пробовал-толку нет((((((((((((

С использованием "stm32f4xx_flash.h" :

    FLASH_Unlock();
    FLASH_EraseSector(FLASH_Sector_2,VoltageRange_4);
    while ((FLASH-›SR & FLASH_SR_BSY) != 0 );
    FLASH_ProgramHalfWord(0x08008000,4);
    FLASH_Lock(); 

ну и на CMSIS :

    void FLASH_WRITE_16BIT(uint32_t Address,uint16_t data)
    {
        FLASH-›CR &= CR_PSIZE_MASK;
        FLASH-›CR |= FLASH_PSIZE_HALF_WORD;
        FLASH-›CR |= FLASH_CR_PG;
      //Запись данных по адресу Address
        *(__IO uint16_t*)Address = data;
        while ((FLASH-›SR & FLASH_SR_BSY) != 0 );
        FLASH-›CR &= (~FLASH_CR_PG);
    } 

[nahimovv]

В исходники, хоть иногда, заглядывать надобно!

FLASH_EraseSector(FLASH_Sector_2,VoltageRange_4);

* @param VoltageRange: The device voltage range which defines the erase parallelism.
* This parameter can be one of the following values:
* @arg VoltageRange_1: when the device voltage range is 1.8V to 2.1V,
* the operation will be done by byte (8-bit)
* @arg VoltageRange_2: when the device voltage range is 2.1V to 2.7V,
* the operation will be done by half word (16-bit)
* @arg VoltageRange_3: when the device voltage range is 2.7V to 3.6V,
* the operation will be done by word (32-bit)
* @arg 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)

У вас есть External Vpp?

To use VPP, an external high-voltage supply (between 8 and 9 V) must be applied to the VPP
pad. The external supply must be able to sustain this voltage range even if the DC
consumption exceeds 10 mA. It is advised to limit the use of VPP to initial programming on
the factory line. The VPP supply must not be applied for more than an hour, otherwise the
Flash memory might be damaged.

[STM32F4]

Код:

FLASH_EraseSector(FLASH_Sector_2,VoltageRange_4);

У вас есть External Vpp?

Согласен, спасибо за замечание! но этим мою проблему не решить(

[STM32F4]

Неужели никто не работал с flash(

[Impartial]

Похоже не разблокирован флеш

#define FLASH_KEY1 ((uint32_t)0x45670123)
#define FLASH_KEY2 ((uint32_t)0xCDEF89AB)


void FlashErasePage(const void *SavedDomain)
{
/* Authorize the FPEC Access */
FLASH-›KEYR = FLASH_KEY1;
FLASH-›KEYR = FLASH_KEY2;