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HELLO I USE STM32F100RB
I WANT write and read from flash mem : /********************FLASH MEMORY******************************/ //WRITE DATA TO FLASH MEMORY /* Unlock the Flash to enable the flash control register access *************/ HAL_FLASH_Unlock(); /* Unlock the Options Bytes *************************************************/ HAL_FLASH_OB_Unlock();
FLASH_PageErase(0);//uint32_t PageAddress HAL_FLASHEx_OBErase(); test3=FLASH_OB_ProgramData(0x080000FFU,0x12);
//HAL_FLASH_OB_Launch();//reserts the system
HAL_FLASH_OB_Lock(); HAL_FLASH_Lock(); //READ THE DATA FROM FLASH MEMORY flash_data=HAL_FLASHEx_OBGetUserData(0x080000FFU);
/********************FLASH MEMORY******************************/
but the software doesnt compile
SDT_LCD_KEYPAD\SDT_LCD_KEYPAD.axf: Error: L6218E: Undefined symbol FLASH_OB_ProgramData (referred from main.o). ?????
is there someone leaved this situation can u help me find solution pl zdid i forget something
thanks much i think no need to touch the options byte at all!!
... just i wannt to know can i use all the pages for exemple page 0 to page 31 ,, is there a specification for saving an appication data ,,, im using stm 32f100rb
where is the prgm position in the flash ,,, i get a lot to pdf docs it desnt tell exactly where i can use or not .,, can you advice im new in the stm ,
just need to write one byte and then read it :)
thanks
what about this program ;why it doesnt give me any result doesnt do any thing and my program bloks looks like not going on while 1 loop ???plz advice stm32f100rb
// /********************FLASH MEMORY******************************/ //WRITE DATA TO FLASH MEMORY ///* Unlock the Flash to enable the flash control register access *************/ HAL_FLASH_Unlock(); HAL_FLASH_OB_Unlock(); FLASH_PageErase(0);//uint32_t PageAddress erasing page 0 :0x0800 0000 - 0x0800 03FF FLASH_Program_HalfWord(0x080000FFU, 0x0012); HAL_FLASH_OB_Lock(); HAL_FLASH_Lock(); // READ THE DATA FROM FLASH MEMORY flash32_data=HAL_FLASHEx_OBGetUserData(0x080000FFU); // flash_data=0x0001411; //key=(flash_data & 0x0000FF00 )>> 8;//high byte key=flash32_data & 0x000000FF;//low byte lcd_clear(); //write key to lcd// lcd_write_char(key+48,1,1,8); HAL_FLASH_OB_Launch(); /********************FLASH MEMORY******************************/
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