Function read_intel_hex

LoadFile/teensy_loader_cli.c:644–678

static int parse_hex_line(char *line);

int read_intel_hex(const char *filename)
{
	FILE *fp;
	int i, lineno=0;
	char buf[1024];

	byte_count = 0;
	end_record_seen = 0;
	for (i=0; i<MAX_MEMORY_SIZE; i++) {
		firmware_image[i] = 0xFF;
		firmware_mask[i] = 0;
	}
	extended_addr = 0;

	fp = fopen(filename, "r");
	if (fp == NULL) {
		//printf("Unable to read file %s\n", filename);
		return -1;
	}
	while (!feof(fp)) {
		*buf = '\0';
		if (!fgets(buf, sizeof(buf), fp)) break;
		lineno++;
		if (*buf) {
			if (parse_hex_line(buf) == 0) {
				printf("Warning, HEX parse error line %d\n", lineno);
				return -2;
			}
		}
		if (end_record_seen) break;
		if (feof(stdin)) break;
	}
	fclose(fp);
	return byte_count;
}


/* from ihex.c, at http://www.pjrc.com/tech/8051/pm2_docs/intel-hex.html */