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Intel Hex ¤ò Xilinx coe ¤ËÊÑ´¹¤¹¤ë

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#include <stdio.h>
#include <stdlib.h>

#define LINEMAX 0x100

/* pseudo memory space */
unsigned char memory[0x10000] ; /* 64Kbyte Space */

/* hex to decimal converter */
static int hextoint(char a)
{
	if ((a >= '0') && (a <='9')) return a - '0' ;
	if ((a >= 'A') && (a <='F')) return a - 'A' + 0x0A ;
	if ((a >= 'a') && (a <='f')) return a - 'a' + 0x0A ;
	return 0 ;
}

static int hex2toint(char *a)
{
	return (hextoint(a[0]) * 0x10 +  hextoint(a[1])) ;
}

static int hex4toint(char *a)
{
	return (hextoint(a[0]) * 0x1000 +   hextoint(a[1]) * 0x100 + hextoint(a[2])*0x10 +  hextoint(a[3])) ;
}

void main(int argc,char *argv[])
{
	char line[LINEMAX] ;
	unsigned int memtop,memend,i ;
	FILE *fpi,*fpo ;

	memend = 0x0000 ; /* end address of output coe file */

	printf("Intel HEX to Xilinx memory initfile converter (8bit)\n",argv[0]) ;

 
	/* help message */
	if (argc < 3) {
		fprintf(stderr,"%s [infile.hex] [outfile.coe]\n",argv[0]) ;
		exit(-1) ;
	}

	/* open input file */
	if ((fpi = fopen(argv[1],"r")) == NULL) {
		fprintf(stderr,"Can't open input file [%s]\n",argv[1]) ;
		exit(-1) ;
	}

	/* read hex file and distribute bits */
	while(fgets(line,LINEMAX,fpi) != NULL) {
		unsigned int reclen,recofs,rectyp ;

		/* +0123456789A            */
		/*  :LLOOOOTTDD...DDCC[CR] */
		/*  LL   - Data Count */
		/*  OOOO - Offset Address */
		/*  TT   - Record Type, 00 : DATA , 01 : END , ignore other types */

		/* [0] is always ':' */
		if (line[0] != ':') continue ;

		/* [1,2] is record length */
		reclen = hex2toint(&line[1]) ;
		if (reclen == 0) continue ;

		/* [3,4,5,6] is record offset */
		recofs = hex4toint(&line[3]) ;

		/* [7,8] is recore type */
		rectyp = hex2toint(&line[7]) ;
		if (rectyp != 0) continue ; /* 01 is END but ignore here */

		/* write one record to pseudo memory (no error check :-) */
		for (i = 0;i < reclen;i++) {
			int data ;
			data = hex2toint(&line[9+i*2]) ;
			memory[recofs] = (unsigned char)data & 0xFF;
			if (recofs > memend) memend = recofs ;
			recofs ++ ;
		}
	}
	fclose(fpi) ;

#define DEBUG
#ifdef DEBUG
	/* dump memory map (for DEBUG) */
	printf("Memory Content is ....\n") ;
	for (i = 0;i <= memend;i += 16) {
		unsigned int j ;
		printf("%04X :",i) ;
		for (j = i;(j < i + 16) && (j <= memend);j++) {
			printf(" %02X",memory[j]) ;
		}
		printf("\n") ;
	}
#endif

	/* open output file */
	if ((fpo = fopen(argv[2],"w"))== NULL) {
		fprintf(stderr,"Can't open output file [%s]\n",argv[2]) ;
		exit(-1) ;
	}

	/* Output .coe format */
	fprintf(fpo,"MEMORY_INITIALIZATION_RADIX= 16 ;\n") ;
	fprintf(fpo,"MEMORY_INITIALIZATION_VECTOR= ") ;
	for (i = 0;i <= memend;i += 16) {
		unsigned int j ;
		fprintf(fpo,"\n") ;
		for (j = i;j < i + 16;j++) {
 			fprintf(fpo,"%02X",memory[j]) ;
			if (j == memend) break ;
			fprintf(fpo,",") ;
		}
	}
	fprintf(fpo,";") ;
	fclose(fpo) ;
}

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