rp2040

commit 1b3004962bf9f77fe2d3b576fe8c83708b7d2816
parent 1c2c5c5c02d837df1e502528210af737c52d8500
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sat,  8 Apr 2023 11:37:16 +0900

rearange

Diffstat:
A
led.bin
 | 
0

A
tools/bin2uf2.c
 | 
110
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
tools/bincrc.c
 | 
90
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 200 insertions(+), 0 deletions(-)
diff --git a/led.bin b/led.bin
Binary files differ.
diff --git a/tools/bin2uf2.c b/tools/bin2uf2.c
@@ -0,0 +1,110 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+size_t
+fwrite32l(uint32_t d, FILE *f)
+{
+	int i;
+	uint8_t b;
+	for (i = 0; i < 32; i += 8) {
+		b = (uint8_t) (d >> i & 0xff);
+		fwrite(&b, 1, 1, f);
+		if (ferror(f)) {
+			fprintf(stderr, "Fwrite32l: write error.\n");
+			return 0;
+		}
+	}
+	return 4;
+}
+
+int
+main(int argc, char *argv[])
+{
+	FILE *src = NULL, *dst = NULL;
+	size_t sdata = 476;
+	int retnum = 0;
+
+	uint32_t mag1 = 0x0A324655;
+	uint32_t mag2 = 0x9E5D5157;
+	uint32_t flags = 0x00002000; // familyID present
+	uint32_t saddr = 0x10000000;
+	uint32_t nbyte = 256;
+	uint32_t blk = 0;
+	uint32_t nblk = 0;
+	uint32_t famid = 0xe48bff56;
+	uint8_t data[sdata];
+	uint32_t mag3 = 0x0AB16F30;
+
+	if (argc != 3) {
+		fprintf(stderr, "Usage: %s src dst\n", argv[0]);
+		exit(1);
+	}
+
+	if ((src = fopen(argv[1], "rb")) == NULL) {
+		fprintf(stderr, "Could not open %s.\n", argv[1]);
+		retnum = 1;
+		goto defer;
+	}
+	if ((dst = fopen(argv[2], "wb")) == NULL) {
+		fprintf(stderr, "Could not open %s.\n", argv[2]);
+		retnum = 1;
+		goto defer;
+	}
+	
+	while (!feof(src)) {
+		fwrite32l(mag1, dst);
+		fwrite32l(mag2, dst);
+		fwrite32l(flags, dst);
+		fwrite32l(saddr, dst);
+		fwrite32l(nbyte, dst);
+		fwrite32l(blk, dst);
+		fwrite32l(nblk, dst); // dammy
+		fwrite32l(famid, dst);
+
+		memset(data, 0, sdata);	
+		fread(data, 1, nbyte, src);
+		if (ferror(src)) {
+			fprintf(stderr, "Read error: %s.\n", argv[1]);
+			retnum = 1;
+			goto defer;
+		}
+		fwrite(data, 1, sdata, dst);
+		if (ferror(src)) {
+			fprintf(stderr, "Write error: %s.\n", argv[2]);
+			retnum = 1;
+			goto defer;
+		}
+
+		fwrite32l(mag3, dst);
+
+		saddr += nbyte;
+		blk++;
+		nblk++;
+	}
+
+	for (int i = 0; i < nblk; i++) {
+		if (i == 0)
+			if (fseek(dst, 24, SEEK_SET) < 0) {
+				fprintf(stderr, "Seek error: %s.\n argv[2]");
+				retnum = 1;
+				goto defer;
+			}
+		fwrite32l(nblk, dst);
+		if (i < nblk - 1)
+			if(fseek(dst, 512 - 4, SEEK_CUR) < 0){
+				fprintf(stderr, "Seek error: %s.\n argv[2]");
+				retnum = 1;
+				goto defer;
+			}
+	}
+	
+defer:
+	if (src)
+		fclose(src);
+	if (dst)
+		fclose(dst);
+	return retnum;
+}
diff --git a/tools/bincrc.c b/tools/bincrc.c
@@ -0,0 +1,90 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+
+void
+printb(uint32_t i)
+{
+	for (int j = 31; j >= 0; j--) {
+		if (i >> j & 1) {
+			printf("1");
+		} else {
+			printf("0");
+		}
+	}
+	printf("\n");
+}
+
+uint32_t
+crc32(uint8_t *idata, size_t len)
+{
+	uint32_t pol = 0x04C11DB7;
+	uint32_t c   = 0xFFFFFFFF;
+	uint32_t b;
+
+	for (int i = 0; i < len; i++) {
+		b = idata[i] << 24;
+		c ^= b;
+		for (int j = 0; j < 8; j++) {
+			c = c >> 31 & 1 ? c << 1 ^ pol : c << 1;
+		}
+	}
+
+	return c;
+}
+
+int
+main(int argc, char *argv[])
+{
+	int src, dst;
+	size_t isize, osize = 256;
+	uint8_t idata[osize];
+	uint32_t cs;
+
+	if(argc != 3) {
+		fprintf(stderr, "Usage: %s src dst\n", argv[0]);
+		exit(1);
+	}
+
+	if((src = open(argv[1], O_RDONLY)) < 0) {
+		fprintf(stderr, "Could not open %s.\n", argv[1]);
+		exit(1);
+	}
+
+	isize = read(src, idata, osize);
+	if (isize > osize - 4) {
+		fprintf(stderr, "Input file too big.\n");
+		exit(1);
+	}
+
+	for (int i = isize; i < osize - 4; i++)
+		idata[i] = 0;
+	
+	close(src);
+
+	if((dst = open(argv[2], O_CREAT | O_WRONLY, 0777)) < 0) {
+		fprintf(stderr, "Could not open %s.\n", argv[2]);
+		exit(1);
+	}
+
+	cs = crc32(idata, osize - 4);
+	for (int i = 0; i < 4; i++)
+		idata[osize - 4 + i] = cs >> i * 8;
+
+	dprintf(dst, ".cpu cortex-m0plus\n");
+	dprintf(dst, ".thumb\n\n");
+	dprintf(dst, ".section .boot2, \"ax\"\n\n");
+	for (int i = 0; i < osize / 16; i++) {
+		dprintf(dst, ".byte ");
+		for (int j = 0; j < 16; j++) {
+			dprintf(dst, "0x%02x%s", idata[i * 16 + j],
+				j == 15 ? "\n" : ", ");
+		}
+	}
+
+	close(dst);
+	return 0;
+}