#include "flash.h"
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#include "bootloader_iap.h"
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void FlashInit(void)
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{
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CMU_PERCLK_SetableEx(FLASHCLK, ENABLE);
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}
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/******************************************
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* func: FlashPageErase
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* desc: ÄÚ²¿FlashÒ³£¨512 Bytes£©²Á
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* input: address£ºFlash¿Õ¼äµØÖ·
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* output: none
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* return: PASS£º³É¹¦ FAIL£ºÊ§°Ü
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*****************************************/
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ErrorStatus FlashPageErase(uint32_t address)
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{
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#define FLS_PAGE_ERASE_KEY0 0x96969696
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#define FLS_PAGE_ERASE_KEY1 0xEAEAEAEA
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#define FLS_PAGE_ERASE_DATA 0x1234ABCD
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uint16_t i;
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CMU_OPCCR2_NVMCKE_Setable(ENABLE);
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FLS_EPCR_ERTYPE_Set(FLS_EPCR_ERTYPE_PAGE);
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FLS_EPCR_EREQ_Set(FLS_EPCR_EREQ_Msk);
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FLS_KEY_Write(FLS_PAGE_ERASE_KEY0);
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FLS_KEY_Write(FLS_PAGE_ERASE_KEY1);
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*(uint32_t *)address = FLS_PAGE_ERASE_DATA;
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while (SET != FLS_ISR_ERD_Chk()) { __NOP(); }
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FLS_ISR_ERD_Clr();
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FLS_KEY_Write(0x00000000);
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CMU_OPCCR2_NVMCKE_Setable(DISABLE);
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for (i = 0; i < 128; i++ )
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{
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if (*(uint32_t *)address != 0xFFFFFFFF)
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{
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return FAIL;
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}
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}
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return PASS;
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#undef FLS_PAGE_ERASE_KEY0
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#undef FLS_PAGE_ERASE_KEY1
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#undef FLS_PAGE_ERASE_DATA
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}
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/******************************************
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* func: LL_FLASH_Program_Word
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* desc: ÄÚ²¿Flash×Ö£¨32 Bits£©Ð´
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* input: address£ºFlash¿Õ¼äµØÖ·
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data£ºÊý¾Ý
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* output: none
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* return: PASS£º³É¹¦
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*****************************************/
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ErrorStatus LL_FLASH_Program_Word(uint32_t address, uint32_t data)
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{
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#define FLS_PROG_KEY0 0xA5A5A5A5
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#define FLS_PROG_KEY1 0xF1F1F1F1
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CMU_OPCCR2_NVMCKE_Setable(ENABLE);
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FLS_EPCR_PREQ_Set(FLS_EPCR_PREQ_Msk);
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FLS_KEY_Write(FLS_PROG_KEY0); // дÈëflash±à³Ìkey0
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FLS_KEY_Write(FLS_PROG_KEY1); // дÈëflash±à³Ìkey1
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*(uint32_t *)address = data;
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while (FLS_ISR_PRD_Chk() == RESET); // µÈ´ýд²Ù×÷Íê³É
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FLS_ISR_PRD_Clr(); // Çå³ýдÍê³ÉÖжϱêÖ¾
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FLS_KEY_Write(0x00000000);
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CMU_OPCCR2_NVMCKE_Setable(DISABLE);
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#undef FLS_PROG_KEY0
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#undef FLS_PROG_KEY1
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return PASS;
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}
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/******************************************
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* func: LL_FLASH_Program_String
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* desc: ÄÚ²¿Flash×Ö£¨4 bytes£©Ð´¶à´Î
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* input: address£ºFlash¿Õ¼äµØÖ·
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*data£ºÊý¾Ý
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Length£ºÐ´µÄ³¤¶È
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* output: none
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* return: PASS£º³É¹¦ FAIL£ºÊ§°Ü
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*****************************************/
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//ErrorStatus LL_FLASH_Program_String(uint32_t Address, uint32_t *data,uint32_t Length)
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//{
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// uint32_t i;
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// ErrorStatus ret;
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// for(i=0; i<Length; i++)
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// {
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// if(((Address + i * 4) & 3) == 0) //µØÖ·Ò»¶¨ÒªÊÇ4µÄ±¶Êý
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// {
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// ret = LL_FLASH_Program_Word( Address + i * 4, data[i]);
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// if(ret == FAIL)
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// return FAIL;
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// }
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// else
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// return FAIL;
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// }
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// return PASS;
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//}
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/******************************************
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* func: Flash_App_Write_String
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* desc: ÄÚ²¿Flash_APP£¨Ó¦ÓóÌÐò£©µØÖ·Á¬Ðø×Ö£¨4 bytes£©Ð´
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* input: prog_addr£º±»Ð´flashÊ×µØÖ·
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prog_data ´ýдÊý¾Ý»º³åÇø
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Len дÈ볤¶È(Ò»´Î²»ÒªÐ´ÈëÌ«¶à£¬ÒÔÃâ¿´ÃŹ·Òç³ö)
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* output: none
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* return: SUCCESS_0£º³É¹¦ ERROR_1£ºÊ§°Ü
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*****************************************/
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ErrorStatus_STM32 Flash_App_Write_String( uint32_t prog_addr,uint32_t* prog_data, uint16_t Len)
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{
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uint16_t i;
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uint32_t *PFlash;
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PFlash = (uint32_t*)prog_addr;
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uint16_t len_word = Len >> 2; // µÈ¼ÛÓÚ / 4
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if(prog_addr < BOOTLOAD_DIFF_SECTOR_MAP_ADDRESS) return ERROR_1;//½ûֹдbootloaderÇø
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for(i=0; i< len_word; i++)
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{
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if(((prog_addr + i * 4) & 3) == 0) //µØÖ·Ò»¶¨ÒªÊÇ4µÄ±¶Êý
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LL_FLASH_Program_Word( prog_addr + i * 4, prog_data[i]);
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else
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return ERROR_1;
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if (PFlash[i] != prog_data[i])
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return ERROR_1;
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}
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return SUCCESS_0;
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}
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/******************************************
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* func: Flash_AppErasePage£¨×îСµ¥Î»£©
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* desc: ÄÚ²¿Flash_APP£¨Ó¦ÓóÌÐò£©Ò³²Á³ý
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* input: EraseAddr£º²Á³ýµÄµØÖ·
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* output: none
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* return: SUCCESS_0£º³É¹¦ ERROR_1£ºÊ§°Ü
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*****************************************/
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ErrorStatus_STM32 Flash_AppPageErase( uint32_t EraseAddr )
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{
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uint16_t i;
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uint32_t PageNum = EraseAddr / BOOTLOAD_PAGE_SIZE;//µ±Ç°µÚ¼¸Ò³
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uint32_t *PFlash = (uint32_t *)(uint32)(PageNum * BOOTLOAD_PAGE_SIZE);
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if(EraseAddr < BOOTLOAD_DIFF_SECTOR_MAP_ADDRESS) return ERROR_1;//½ûÖ¹²Á³ýbootÇø
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/*ΪʲôҪÏȳýÒÔ512ÔÙ³ËÒÔ512£¬ÊÇÒòΪFM33A0µÄFlash²Á³ýÊÇÒÔÒ³£¨512×Ö½Ú£©Îª×îСµ¥Î»
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Èç¹ûµØַΪ1ÄÇô¾ÍÊǵÚÒ»Ò³£¨0~511£©£¬µØַΪ530ÄǾÍÊǵڶþÒ³£¨512~1023£©*/
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FlashPageErase(PageNum * BOOTLOAD_PAGE_SIZE);//²Á³ýAPPÖ¸¶¨Ò³
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for (i = 0; i < 128; i++ )
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{
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if (PFlash[i] != 0xFFFFFFFF )
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{
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return ERROR_1;
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}
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}
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return SUCCESS_0;
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}
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