jens
e3ae10069e
git-svn-id: http://moon:8086/svn/software/trunk/libsrc/ihexparse@1 b431acfa-c32f-4a4a-93f1-934dc6c82436
109 lines
2.2 KiB
C
Executable File
109 lines
2.2 KiB
C
Executable File
/*************************************************************************/
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/* ihexparse.h
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/*************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <types.h>
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#include <ihexparse.h>
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UINT32 HexCreate(HEXREC *pObj, char *name)
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{
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pObj->pFile = fopen(name,"wa");
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if (pObj->pFile <= 0)
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return -1;
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return 0;
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}
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UINT32 HexOpen(HEXREC *pObj, char *name)
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{
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pObj->pFile = fopen(name,"ra");
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if (pObj->pFile <= 0)
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return -1;
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return 0;
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}
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UINT32 HexReadRecord(HEXREC *pObj)
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{
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UINT8 val8;
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UINT16 i;
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UINT32 val32;
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INT32 status;
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val8 = 0;
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/* Read Record Start character */
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while (val8 != ':')
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{
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status = fscanf(pObj->pFile,"%c",&val8);
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if (status <= 0)
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return HEXREC_ERROR;
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}
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/* Read Record Length */
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fscanf(pObj->pFile,"%2x",&pObj->length);
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/* check if hex file is finished */
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if (pObj->length == 0)
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{
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status = fscanf(pObj->pFile,"%8x",&val32);
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if (status <= 0)
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return HEXREC_ERROR;
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if (val32 == 0x000001FF)
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return HEXREC_END;
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}
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/* Read Start Address */
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fscanf(pObj->pFile,"%4x",&pObj->dataStart);
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/* Read Record Type */
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fscanf(pObj->pFile,"%2x",&pObj->type);
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/* Read Record Data */
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for (i=0; i <pObj->length; i++)
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fscanf(pObj->pFile,"%2x",&pObj->recData[i]);
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/* Read Checksum */
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fscanf(pObj->pFile,"%2x",&pObj->checksum);
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if (pObj->checksum != HexCalcChecksum(pObj))
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return HEXREC_ERROR;
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return i;
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}
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UINT32 HexWriteRecord(HEXREC *pObj)
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{
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UINT16 i;
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fprintf(pObj->pFile,":%2.2X%4.4X%2.2X",pObj->length,pObj->dataStart,pObj->type);
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for (i=0; i < pObj->length; i++)
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fprintf(pObj->pFile, "%2.2X",pObj->recData[i]);
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pObj->checksum = HexCalcChecksum(pObj);
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fprintf(pObj->pFile, "%2.2X\n",pObj->checksum);
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return i;
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}
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UINT32 HexClose(HEXREC *pObj)
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{
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pObj->length=0;
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pObj->type=0x01;
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pObj->dataStart=0x0000;
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return HexWriteRecord(pObj);
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}
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UINT8 HexCalcChecksum(HEXREC *pObj)
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{
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UINT16 i;
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UINT8 sum;
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sum = pObj->dataStart & 0xFF;
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sum += (pObj->dataStart >> 8) & 0xFF;
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sum += pObj->length + pObj->type;
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for (i=0; i < pObj->length; i++)
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sum += pObj->recData[i];
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return (0xFF - sum + 1);
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}
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