Sophie Dexter / Mbed 2 deprecated Just4Trionic

Just4Trionic - CAN and BDM FLASH programmer for Saab cars

Dependencies:   mbed

SRecUtils.cpp@0:e0b964252a05, 2010-05-19 (annotated)

Committer:
Just4pLeisure
Date:
Wed May 19 12:39:18 2010 +0000
Revision:
0:e0b964252a05

        

        
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#include "SRecUtils.h"





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// SRecGetByte





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//





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// Returns an int which is a single byte made up from two ascii characters read from an S-record file





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//





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// inputs:	a file pointer for the S-record file





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// return:	an integer which is the byte in hex format





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int SRecGetByte(FILE *fp) {





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    int c = 0;





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    int retbyte = 0;





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    for(int i=0; i<2; i++) {





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        if ((c = fgetc(fp)) == EOF) return -1;





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        c -= (c > '9') ? ('A' - 10) : '0';





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        retbyte = (retbyte << 4) + c;





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    }





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    return retbyte;





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}





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// SRecGetAddress





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//





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// Returns an int which is the address part of the S-record line





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// The S-record type 1/2/3 or 9/8/7 determines if there are 2, 3 or 4 bytes in the address





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//





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// inputs:	an integer which is the number of bytes that make up the address; 2, 3 or 4 bytes





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//			a file pointer for the S-record file





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// return:	an integer which is the load address for the S-record





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int SRecGetAddress(int size, FILE *fp) {





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    int address = 0;





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    for (int i = 0; i<size; i++)





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    {





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        address <<= 8;





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        address |= SRecGetByte (fp);





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    }





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    return address;





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}