STM32F0 Flash Read and write

Flash size 64k rom+8k RAM size, stm32f051 has 64k ROM, the total is divided into 64 pages, a page 1024byte, in the Flash Rom write data power-down save, equivalent to W25q80

uint32_t flash_start_addr = 0x08000000+1024*63; 10,241-page size 1k, 64K Flash has the last page at the beginning of the first address to write
/*****************************************************************************
function: Flash Write

Input: Addr: Write address 0-one page size data:4 byte data

return: None
******************************************************************************/
void Writeflash (uint32_t addr,uint32_t data)
{
Flash_unlock (); ½âëøflash±à³ì²á³ý¿øöææ÷
Flash_clearflag (flash_flag_bsy| flash_flag_eop| flash_flag_pgerr| FLASH_FLAG_WRPERR);//çå³ý±êö¾î»
Flash_erasepage (FLASH_START_ADDR); ²á³ýö¸¶¨µøö ò³
Flash_programword (flash_start_addr+ (addr*4), data); ´óö¸¶¨ò³µä0µøö ¿ªê¼ð´
Flash_clearflag (flash_flag_bsy| flash_flag_eop| flash_flag_pgerr| FLASH_FLAG_WRPERR);//çå³ý±êö¾î»
Flash_lock (); Ëø¶¨flash±à³ì²á³ý¿øöææ÷
}

/*****************************************************************************
function: Read Flash

Input: Read address

Return: Read 4 bytes of data
******************************************************************************/
uint32_t Readflash (uint16_t addr)
{
uint32_t value;
Value = * (uint32_t*) (flash_start_addr+ (addr*4));
return value;
}

STM32F0 Flash Read and write