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Subversion Repositories eco32

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  • This comparison shows the changes necessary to convert path 
    /eco32/tags/eco32-0.26/tools/bit2exo
    from Rev 254 to Rev 270
    ↔ Reverse comparison
  •

Rev 254 → Rev 270

/Makefile
0,0 → 1,19
#
# Makefile for bitfile to S-record converter
#
 
BUILD = ../../build
 
.PHONY: all install clean
 
all: bit2exo
 
install: bit2exo
mkdir -p $(BUILD)/bin
cp bit2exo $(BUILD)/bin
 
bit2exo: bit2exo.c
gcc -g -Wall -o bit2exo bit2exo.c
 
clean:
rm -f *~ bit2exo
/bit2exo.c
0,0 → 1,186
/*
* bit2exo.c -- convert Xilinx bitfile data to Motorola S-records
*/
 
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
 
 
unsigned char bitHeader[13] = {
0x00, 0x09, 0x0F, 0xF0,
0x0F, 0xF0, 0x0F, 0xF0,
0x0F, 0xF0, 0x00, 0x00,
0x01
};
 
 
void error(char *fmt, ...) {
va_list ap;
 
va_start(ap, fmt);
printf("Error: ");
vprintf(fmt, ap);
printf("\n");
va_end(ap);
exit(1);
}
 
 
unsigned int getCount2(FILE *infile) {
unsigned char b1, b2;
 
b1 = fgetc(infile);
b2 = fgetc(infile);
return ((unsigned int) b1 << 8) | (unsigned int) b2;
}
 
 
unsigned int getCount4(FILE *infile) {
unsigned char b1, b2, b3, b4;
 
b1 = fgetc(infile);
b2 = fgetc(infile);
b3 = fgetc(infile);
b4 = fgetc(infile);
return ((unsigned int) b1 << 24) | ((unsigned int) b2 << 16) |
((unsigned int) b3 << 8) | ((unsigned int) b4 << 0);
}
 
 
void show(char *name, FILE *infile, int count) {
int c;
 
printf("%s", name);
while (count--) {
c = fgetc(infile);
if (c >= 0x20 && c <= 0x7E) {
printf("%c", c);
}
}
printf("\n");
}
 
 
unsigned char mirror(unsigned char n) {
unsigned char m;
int i;
 
m = 0;
for (i = 0; i < 8; i++) {
m <<= 1;
if (n & 1) {
m |= 1;
}
n >>= 1;
}
return m;
}
 
 
int main(int argc, char *argv[]) {
char *endptr;
unsigned int loadAddr;
FILE *infile;
FILE *outfile;
int numBytes, i;
int c;
unsigned char lineData[16];
unsigned int chksum;
int totalBytes;
 
if (argc != 4) {
printf("Usage: %s <load addr, hex> <input file> <output file>\n",
argv[0]);
printf(" ROM quadrant 0: load addr = 0x000000\n");
printf(" ROM quadrant 1: load addr = 0x080000\n");
printf(" ROM quadrant 2: load addr = 0x100000\n");
printf(" ROM quadrant 3: load addr = 0x180000\n");
exit(1);
}
loadAddr = strtoul(argv[1], &endptr, 16);
if (*endptr != '\0') {
error("illegal load address %s", argv[1]);
}
infile = fopen(argv[2], "rb");
if (infile == NULL) {
error("cannot open input file %s", argv[2]);
}
outfile = fopen(argv[3], "wt");
if (outfile == NULL) {
error("cannot open output file %s", argv[3]);
}
/* 13 bytes header */
for (i = 0; i < 13; i++) {
if (fgetc(infile) != bitHeader[i]) {
error("input file header is not a '.bit' header");
}
}
/* section 'a' */
if (fgetc(infile) != 'a') {
error("section 'a' not found");
}
i = getCount2(infile);
show("design name:\t\t", infile, i);
/* section 'b' */
if (fgetc(infile) != 'b') {
error("section 'b' not found");
}
i = getCount2(infile);
show("part name:\t\t", infile, i);
/* section 'c' */
if (fgetc(infile) != 'c') {
error("section 'c' not found");
}
i = getCount2(infile);
show("creation date:\t\t", infile, i);
/* section 'd' */
if (fgetc(infile) != 'd') {
error("section 'd' not found");
}
i = getCount2(infile);
show("creation time:\t\t", infile, i);
/* section 'e' */
if (fgetc(infile) != 'e') {
error("section 'e' not found");
}
i = getCount4(infile);
printf("bit stream size:\t0x%08X\n", i);
totalBytes = 0;
while (1) {
chksum = 0;
for (numBytes = 0; numBytes < 16; numBytes++) {
c = fgetc(infile);
if (c == EOF) {
break;
}
c = mirror(c & 0xFF);
lineData[numBytes] = c;
chksum += c;
}
if (numBytes == 0) {
break;
}
totalBytes += numBytes;
fprintf(outfile, "S2%02X%06X", numBytes + 4, loadAddr);
for (i = 0; i < numBytes; i++) {
fprintf(outfile, "%02X", lineData[i]);
}
chksum += numBytes + 4;
chksum += ((loadAddr >> 0) & 0xFF) +
((loadAddr >> 8) & 0xFF) +
((loadAddr >> 16) & 0xFF);
fprintf(outfile, "%02X\n", 0xFF - (chksum & 0xFF));
loadAddr += numBytes;
if (c == EOF) {
break;
}
}
fprintf(outfile, "S804000000FB\n");
fclose(infile);
fclose(outfile);
printf("bytes converted:\t0x%08X\n", totalBytes);
return 0;
}

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