259 lines
8.9 KiB
C
259 lines
8.9 KiB
C
/*!
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Copyright 2017 ÀÎ "ÍÈÈÝÒ" è ÎÎÎ "ÍÏÔ ÂÅÊÒÎÐ"
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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\file V_UserMemory.c
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\brief Ðàáîòà ñ ïîëüçîâàòåëüñêîé ýíåðãîíåçàâèñèìîé ïàìÿòüþ 1921BK028 (ñì. TUserMemory)
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\author Ëàøêåâè÷ Ì.Ì., Øïàê Ä.Ì.
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\version v 1.0 21/03/2019
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*/
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/** \addtogroup TUserMemory */
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/*@{*/
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#include "main.h"
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#include "DSP.h"
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//!Èíèöèàëèçàöèÿ
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//!Èíèöèàëèçàöèÿ USERMEMORY
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//! \memberof TUserMemory
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void USERMEMORY_Init(TUserMemory *p)
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{
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USERMEMORY_ReadToCache(p,0);//÷èòàåì â îïåðàòèâêó íóëåâîé ñòðàíèöû (÷òîáû áûëà òåêóùàÿ ñòðàíèöà è âñå ðàáîòàëî êîððåêòíî äàëüøå)
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}
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//! Âñïîìîãàòåëüíàÿ ôóíêöèÿ îæèäàíèÿ îïåðàöèè, âîçâðàùåò "0" åñëè âñ¸ ÎÊ, è "1", åñëè íå âñ¸ ÎÊ
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Uint16 waitUserFlashBusy (TUserMemory *p) {
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p->waitClocks = 0;
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__NOP(); // Â äîêóìåíòàöèè ñêàçàëè ïîäîæäàòü ïåðåä ïðîâåðêîé ñòàòóñà
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__NOP();
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__NOP();
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__NOP();
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__NOP();
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while(NVRFLASH->STAT_bit.BUSY == 0x1){//æäåì
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p->waitClocks++;
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if (p->waitClocks > USERMEMORY_MAX_WAITCLOCKS){//óñòàëè æäàòü
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return 1;
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}
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}
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return 0;
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}
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//! Ïðîâåðêà, íå íóæíî ëè ñìåíèòü ñòðàíèöó
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//! Ïðîâåðÿåò òåêóùèé àäðåñ íà ôëåøêå, ñ êîòîðûì ðàáîòàåò ïîëüçîâàòåëü. Åñëè àäðåñ âûøåë èç òåêóùåé ñòðàíèöû, ñòðàíèöà çàïèñûâàåòñÿ íà ôëåø è ÷èòàåòñÿ â RAM íîâûé
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//! \memberof TUserMemory
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void USERMEMORY_UpdateCurrentPage(TUserMemory *p, Uint16 spiaddr)
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{
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Uint16 newPage=spiaddr>>PAGE_SIZE_LOG2;//íîìåð ñòðàíèöû - ýòî âåðõíåå çíà÷åíèå àäðåñà, òàê êàê ñòðàíèöà 256 áàéò
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if (newPage!=p->PageInCache){//ñòðàíèöà äðóãàÿ?
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if (p->PageRAM_and_FLASH_IdenticalFlag==0)//è åñòü èçìåíåííûå äàííûå â ýòîé ñòðàíèöå â îïåðàòèâêå â êåøå?
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USERMEMORY_Flush(p);//çàãîíÿåì ñòðàíèöó íà ôëåø
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if (p->receivedCode!=USERMEMORY_OP_OK)//íå âûøëî?
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return;
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//÷èòàåì â îïåðàòèâêó íîâóþ ñòðàíèöó
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USERMEMORY_ReadToCache(p,newPage);
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if (p->receivedCode!=USERMEMORY_OP_OK)//íå âûøëî?
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return;
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}
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}
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//! Çàïèñü â ïàìÿòü
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//!Ìåäëåííàÿ ôóíêöèÿ, çàïèñûâàþùàÿ íà flash çàäàííûå äàííûå.
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//!Ðàáîòàåò ñ çàêåøèðîâàííûìè â îïåðàòèâêå äàííûìè, à ôèçè÷åñê ïèøåò íà ôëåø òîëüêî åñëè àäðåñ âûëåç çà ãðàíèöû òåêóùåé ñòðàíèöû
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//! Àäðåñ âî ôëåøå spiaddr, àäðåñ 16òè ðàçðÿäíûõ äàííûõ ïîëüçîâàòåëÿ startaddr, ðàçìåð data_length. Âñå â áàéòàõ
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//! Ïðè âûïîëåíèè îïåðàöèè startaddr èíêðåìåíòèðóåòñÿ, à spiaddr íåò
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//! \memberof TUserMemory
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void USERMEMORY_Write(TUserMemory *p)
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{
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Uint16 i = 0;
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Uint16 spiaddrTmp=p->MemStartAddr;//àäðåñ íà ôëåøå â áàéòàõ
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p->MCUStartAddr8=(Uint8*)p->MCUStartAddr;//ìåíÿåì óêàçàòåëü íà äàííûå - èç óêàçàòåëÿ íà 16òè ðàçðÿäíûå äàííûå íà óêàçàòåëü íà áàéòû - òàê óäîáíåå
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for(i = 0; i < p->data_length; i++){//ïî âñåì äàííûì, ÷òî õî÷åò ïîëüçîâàòåëü
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USERMEMORY_UpdateCurrentPage(p,spiaddrTmp);//ñìåíèòü è ïåðå÷èòàòü ñòðàíèöó, åñëè îíà äðóãàÿ
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Uint16 addrInPage=spiaddrTmp&0xFFFF;//àäðåñ âíóòðè ñòðàíèöû
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if (p->cacheArr[addrInPage] != (*(p->MCUStartAddr8))){//äàííûå íà ñîâïàäàþò ñ òåì, ÷òî óæå â îïåðàòèâêå â ýòîì ìåñòå?
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p->cacheArr[addrInPage]=(*(p->MCUStartAddr8));//êëàäåì äàííûå â îïåðàòèâêó
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p->PageRAM_and_FLASH_IdenticalFlag=0;//ôëàã, ÷òî äàííûå â îïåðàòèâêå îòëè÷àþòñÿ îò çàïèñàííûõ íà ôëåøå
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}
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spiaddrTmp++;
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p->MCUStartAddr8++;
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}
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//p->MCUStartAddr=(Uint16*)p->MCUStartAddr8;//÷òîáû àäðåñ íà äàííûå ïîìåíÿëñÿ (íå çíàþ, íàäî ýòî êîìó èëè íåò)
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p->receivedCode = USERMEMORY_OP_OK;
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}
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//! ×òåíèå èç ïàìÿòè
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//!Ìåäëåííàÿ ôóíêöèÿ, ñ÷èòûâàþùàÿ èç flash çàäàííûå äàííûå. Ïîäðîáíîñòè ñì. TUserMemory.
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//! Àäðåñ âî ôëåøå spiaddr, àäðåñ àäðåñ 16òè ðàçðÿäíûõ äàííûõ ïîëüçîâàòåëÿ startaddr, ðàçìåð data_length. Âñå â áàéòàõ.
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//! Ïðè âûïîëåíèè îïåðàöèè startaddr èíêðåìåíòèðóåòñÿ, à spiaddr íåò
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//! \memberof TUserMemory
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void USERMEMORY_Read(TUserMemory *p)
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{
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Uint16 i = 0;
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Uint16 spiaddrTmp=p->MemStartAddr;
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p->MCUStartAddr8=(Uint8*)p->MCUStartAddr;
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for(i = 0; i < p->data_length; i++){//ïî âñåì äàííûì, ÷òî õî÷åò ïîëüçîâàòåëü
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USERMEMORY_UpdateCurrentPage(p,spiaddrTmp);//ñìåíèòü è ïåðå÷èòàòü ñòðàíèöó, åñëè îíà äðóãàÿ
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Uint16 addrInPage=spiaddrTmp&0xFFFF;//àäðåñ âíóòðè ñòðàíèöû
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*(p->MCUStartAddr8) = p->cacheArr[addrInPage];//îòäàåì äàííûå èç îïåðàòèâêè, îíè äîëæíû áûòü òàì àêòóàëüíûå ïîñëå USERMEMORY_UpdateCurrentPage
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spiaddrTmp++;
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p->MCUStartAddr8++;
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}
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p->MCUStartAddr=(Uint16*)p->MCUStartAddr8;//÷òîáû àäðåñ íà äàííûå ïîìåíÿëñÿ (íå çíàþ, íàäî ýòî êîìó èëè íåò)
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p->receivedCode = USERMEMORY_OP_OK;
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}
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//! Çàïèñûâàåò ñòðàíèöó äàííûå íà ôëåøêó èç êåøà (èç îïåðàòèâêè îäíó ñòðàíèöó)
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//! \memberof TUserMemory
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void USERMEMORY_WriteFromCache(TUserMemory *p, int16 pageNum)
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{
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int16 i = 0, readDataWord = 0;
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Uint32 *arrayPointer;
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Uint16 addrOffset=pageNum*USERMEMORY_PAGE_SIZE;//íà÷àëüíûé àäðåñ íà ôëåøêå (îò íà÷àëà ñòðàíèöû)
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NVRFLASH->STAT = 0x3;//ñáðîñ ñòàòóñà
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NVRFLASH->ADDR = addrOffset;//àäðåñ íà÷àëà ñòðàíèöû
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NVRFLASH->CMD = (USERMEMORY_USERFLASH_KEY | USERMEMORY_CMD_PAGE_ERASE);//ñòèðàåì ñòðàíèöó
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if (waitUserFlashBusy(p) != 0){
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p->receivedCode = USERMEMORY_WRITE_TIMEOUT;
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return;
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}
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for(i = 0; i < USERMEMORY_PAGE_SIZE; i += NUMBER_OF_BYTE_ON_PAGE){//öèêë ïî ðàçìåðó ñòðàíèöû
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NVRFLASH->STAT = 0x3; //ñáðîñ ñòàòóñà
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NVRFLASH->ADDR = addrOffset + i; //àäðåñ
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arrayPointer = (Uint32*)(&p->cacheArr[i]);
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for (readDataWord = 0; readDataWord < NUMBER_OF_32BIT_WORDS_AT_ONCE; readDataWord++){
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NVRFLASH->DATA[readDataWord].DATA = *arrayPointer;
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arrayPointer++;
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}
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NVRFLASH->CMD = (USERMEMORY_USERFLASH_KEY | USERMEMORY_CMD_WRITE);//êîìàíäà íà çàïèñü áàéòà
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if (waitUserFlashBusy(p) != 0){
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p->receivedCode = USERMEMORY_WRITE_TIMEOUT;
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return;
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}
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}
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NVRFLASH->STAT = 0x3;//ñáðîñ ñòàòóñà
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p->receivedCode = USERMEMORY_OP_OK;//âñå õîðîøî
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p->PageRAM_and_FLASH_IdenticalFlag=1;//äàííûå ñòðàíèöû â îïåðàòèâêå è âî ôëåøå òåïåðü èäåíòè÷íû
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}
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//! ×èòàåò ñòðàíèöó äàííûõ èç ôëåøà â êåø (â îïåðàòèâêó)
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//! \memberof TUserMemory
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void USERMEMORY_ReadToCache(TUserMemory *p, int16 pageNum)
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{
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int16 i = 0, readDataWord = 0;
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Uint16 addrOffset = pageNum * USERMEMORY_PAGE_SIZE;//íà÷àëüíûé àäðåñ íà ôëåøêå (îò íà÷àëà ñòðàíèöû)
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Uint32 *arrayPointer;
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for(i = 0; i < USERMEMORY_PAGE_SIZE; i += NUMBER_OF_BYTE_ON_PAGE){//öèêë ïî ðàçìåðó ñòðàíèöû
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NVRFLASH->STAT = 0x3;//ñáðîñ ñòàòóñà
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NVRFLASH->ADDR = addrOffset + i;//àäðåñ
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NVRFLASH->CMD = (USERMEMORY_USERFLASH_KEY | USERMEMORY_CMD_READ);//êîìàíäà íà ÷òåíèå áàéòà
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if (waitUserFlashBusy(p) != 0){
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p->receivedCode = USERMEMORY_READ_TIMEOUT;
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return;
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}
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arrayPointer = (Uint32*)&(p->cacheArr[i]);
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// Ñ÷èòûâàåòñÿ ïî 16 èëè 4 32-ðàçðÿäíûõ ñëîâà{
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for (readDataWord = 0; readDataWord < NUMBER_OF_32BIT_WORDS_AT_ONCE; readDataWord++){
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*arrayPointer = NVRFLASH->DATA[readDataWord].DATA;//äàííûå (îäèí áàéò) â îïåðàòèâêó
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arrayPointer++;
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}
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}
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NVRFLASH->STAT = 0x3;//ñáðîñ ñòàòóñà
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p->receivedCode = USERMEMORY_OP_OK;
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p->PageInCache=pageNum;//êàêàÿ ñòðàíèöà òåïåðü â êåøå
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p->PageRAM_and_FLASH_IdenticalFlag=1;//äàííûå â îïåðàòèâêå (â êåøå) èäåíòè÷íû ñ ôëåøåì
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}
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//! Ñòåðåòü âñþ ôëåøêó (áóäóò FF)
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//! \memberof TUserMemory
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void USERMEMORY_Full_Erase(TUserMemory *p){
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// Cáðîñ ñòàòóñà, êîìàíäà ñòèðàíèÿ è îæèäàíèå çàâåðøåíèÿ
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NVRFLASH->STAT = 0x3;
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NVRFLASH->CMD = (USERMEMORY_USERFLASH_KEY | USERMEMORY_CMD_FULL_ERASE);//êîìàíäà íà ñòèðàíèå ôñåé ôëåøè
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__NOP(); // Â äîêóìåíòàöèè ñêàçàëè ïîäîæäàòü ïåðåä ïðîâåðêîé ñòàòóñà
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__NOP();
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__NOP();
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__NOP();
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__NOP();
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while(NVRFLASH->STAT_bit.BUSY == 0x1){};
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}
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//! Ñáðîñèòü êåø èç îïåðàòèâêè íà ôëåøêó
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//! \memberof TUserMemory
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void USERMEMORY_Flush(TUserMemory *p){
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USERMEMORY_WriteFromCache(p,p->PageInCache);
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}
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//! Ìåäëåííûé ôîíîâûé ïîñòîÿííûé ðàñ÷åò - íóæåí ïîêà äëÿ ñèñòåìàòè÷åñêîãî ñáðîñà êåøà íà ôëåøêó ïî âðåìåíè
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//! \memberof TUserMemory
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void USERMEMORY_slow_calc(TUserMemory *p){
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if (p->NeedFlushRequest){//íàäî ôëóøèòü?
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USERMEMORY_Flush(p);
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p->NeedFlushRequest=0;
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}
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}
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//! Ìèëëèñåêóíäíûé ðàñ÷åò - íóæåí ïîêà äëÿ ñèñòåìàòè÷åñêîãî ñáðîñà êåøà íà ôëåøêó ïî âðåìåíè
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//! \memberof TUserMemory
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void USERMEMORY_ms_calc(TUserMemory *p){
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if (!p->PageRAM_and_FLASH_IdenticalFlag)//äàííûå íà ôëåøêå è â îïåðàòèâêå íå èäåíòè÷íû
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p->autoFlushCounter++;
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if (p->autoFlushCounter>10000) //çèùèòà îò ïåðåïîëíåíèÿ
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p->autoFlushCounter=10000;
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if (p->autoFlushCounter>500){//äîëãî íå ñáðàñûâàåòñÿ íà ôëåøêó
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p->NeedFlushRequest=1;//íàäî ôëóøèòü, íî òóò ýòî äåëàòü íåëüçÿ, èáî ïðåðûâàíèå, ñòàâèì ðåêâåñò ôîíó
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p->autoFlushCounter=0;
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}
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}
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/*@}*/
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