/*
?*?flash_if.c
?*
?*??Created?on:?Aug?12?2020
?*??????Author:?Sudaroot
?*/


/**?@addtogroup?STM32F4xx_IAP_Main
??*?@{
??*/

/*?Includes?------------------------------------------------------------------*/
#include?“flash_if.h“

/*?Private?typedef?-----------------------------------------------------------*/
/*?Private?define?------------------------------------------------------------*/
/*?Private?macro?-------------------------------------------------------------*/
/*?Private?variables?---------------------------------------------------------*/
/*?Private?function?prototypes?-----------------------------------------------*/
static?uint32_t?GetSector（uint32_t?Address）;

/*?Private?functions?---------------------------------------------------------*/

/**
??*?@brief??Unlocks?Flash?for?write?access
??*?@param??None
??*?@retval?None
??*/
void?FLASH_If_Init（void）
{
??HAL_FLASH_Unlock（）;

??/*?Clear?pending?flags?（if?any）?*/
??__HAL_FLASH_CLEAR_FLAG（FLASH_FLAG_EOP?|?FLASH_FLAG_OPERR?|?FLASH_FLAG_WRPERR?|
?????????????????????????FLASH_FLAG_PGAERR?|?FLASH_FLAG_PGPERR?|?FLASH_FLAG_PGSERR）;
}

/**
??*?@brief??This?function?does?an?erase?of?all?user?flash?area
??*?@param??StartSector:?start?of?user?flash?area
??*?@retval?0:?user?flash?area?successfully?erased
??*?????????1:?error?occurred
??*/
uint32_t?FLASH_If_Erase（uint32_t?StartSector）
{
??uint32_t?UserStartSector;
??uint32_t?SectorError;
??FLASH_EraseInitTypeDef?pEraseInit;

??/*?Unlock?the?Flash?to?enable?the?flash?control?register?access?*************/
??FLASH_If_Init（）;

??/*?Get?the?sector?where?start?the?user?flash?area?*/
??UserStartSector?=?GetSector（APPLICATION_ADDRESS）;

??pEraseInit.TypeErase?=?TYPEERASE_SECTORS;
??pEraseInit.Sector?=?UserStartSector;
??pEraseInit.NbSectors?=?10;
??pEraseInit.VoltageRange?=?VOLTAGE_RANGE_3;

??if?（HAL_FLASHEx_Erase（&pEraseInit?&SectorError）?!=?HAL_OK）
??{
?????/*?Error?occurred?while?page?erase?*/
?????return?（1）;
??}

??return?（0）;
}

/**
??*?@brief??This?function?writes?a?data?buffer?in?flash?（data?are?32-bit?aligned）.
??*?@note???After?writing?data?buffer?the?flash?content?is?checked.
??*?@param??FlashAddress:?start?address?for?writing?data?buffer
??*?@param??Data:?pointer?on?data?buffer
??*?@param??DataLength:?length?of?data?buffer?（unit?is?32-bit?word）
??*?@retval?0:?Data?successfully?written?to?Flash?memory
??*?????????1:?Error?occurred?while?writing?data?in?Flash?memory
??*?????????2:?Written?Data?in?flash?memory?is?different?from?expected?one
??*/
uint32_t?FLASH_If_Write（uint32_t?FlashAddress?uint32_t*?Data?uint32_t?DataLength）
{
??uint32_t?i?=?0;

??for?（i?=?0;?（i???{
????/*?Device?voltage?range?supposed?to?be?[2.7V?to?3.6V]?the?operation?will
???????be?done?by?word?*/
????if?（HAL_FLASH_Program（TYPEPROGRAM_WORD?FlashAddress?*（uint32_t*）（Data+i））?==?HAL_OK）
????{
?????/*?Check?the?wri

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????26008??2020-08-16?21:52??IAP?Bootloader\.cproject

?????文件???????6889??2020-08-16?21:52??IAP?Bootloader\.mxproject

?????文件???????1387??2020-08-16?21:46??IAP?Bootloader\.project

?????文件???????2372??2020-08-20?23:31??IAP?Bootloader\.settings\language.settings.xml

?????文件???????2495??2020-08-12?14:35??IAP?Bootloader\Core\Inc\flash_if.h

?????文件???????2181??2020-08-16?21:52??IAP?Bootloader\Core\Inc\main.h

?????文件??????20065??2020-08-16?21:52??IAP?Bootloader\Core\Inc\stm32f4xx_hal_conf.h

?????文件???????2106??2020-08-16?21:52??IAP?Bootloader\Core\Inc\stm32f4xx_it.h

?????文件???????6962??2020-08-13?11:11??IAP?Bootloader\Core\Src\flash_if.c

?????文件???????9497??2020-08-16?22:05??IAP?Bootloader\Core\Src\main.c

?????文件???????4096??2020-08-16?21:52??IAP?Bootloader\Core\Src\stm32f4xx_hal_msp.c

?????文件???????5566??2020-08-16?21:52??IAP?Bootloader\Core\Src\stm32f4xx_it.c

?????文件???????2675??2020-08-12?10:44??IAP?Bootloader\Core\Src\syscalls.c

?????文件???????1468??2020-08-12?10:44??IAP?Bootloader\Core\Src\sysmem.c

?????文件??????26457??2020-07-13?23:42??IAP?Bootloader\Core\Src\system_stm32f4xx.c

?????文件??????24986??2020-07-13?23:42??IAP?Bootloader\Core\Startup\startup_stm32f429igtx.s

?????文件????1480591??2020-07-13?23:42??IAP?Bootloader\Drivers\CMSIS\Device\ST\STM32F4xx\Include\stm32f429xx.h

?????文件???????9485??2020-07-13?23:42??IAP?Bootloader\Drivers\CMSIS\Device\ST\STM32F4xx\Include\stm32f4xx.h

?????文件???????3796??2020-07-13?23:42??IAP?Bootloader\Drivers\CMSIS\Device\ST\STM32F4xx\Include\system_stm32f4xx.h

?????文件??????28208??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\cmsis_armcc.h

?????文件??????56497??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\cmsis_armclang.h

?????文件???????9014??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\cmsis_compiler.h

?????文件??????62344??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\cmsis_gcc.h

?????文件??????28414??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\cmsis_iccarm.h

?????文件???????1716??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\cmsis_version.h

?????文件??????97995??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\core_armv8mbl.h

?????文件?????168914??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\core_armv8mml.h

?????文件??????42208??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\core_cm0.h

?????文件??????50464??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\core_cm0plus.h

?????文件??????43456??2020-07-13?23:43??IAP?Bootloader\Drivers\CMSIS\Include\core_cm1.h

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