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diff --git a/ao-tools/ao-dumpflash/ao-dumpflash.c b/ao-tools/ao-dumpflash/ao-dumpflash.c
new file mode 100644
index 00000000..3cd21e66
--- /dev/null
+++ b/ao-tools/ao-dumpflash/ao-dumpflash.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <string.h>
+#include "cc-usb.h"
+#include "cc.h"
+
+#define NUM_BLOCK	512
+
+static const struct option options[] = {
+	{ .name = "tty", .has_arg = 1, .val = 'T' },
+	{ .name = "device", .has_arg = 1, .val = 'D' },
+	{ .name = "remote", .has_arg = 0, .val = 'R' },
+	{ .name = "frequency", .has_arg = 1, .val = 'F' },
+	{ .name = "call", .has_arg = 1, .val = 'C' },
+	{ .name = "output", .has_arg = 1, .val = 'o' },
+	{ 0, 0, 0, 0},
+};
+
+static void usage(char *program)
+{
+	fprintf(stderr, "usage: %s [--tty <tty-name>] [--device <device-name>] [--remote] [--frequency <radio-frequency>] [--call <radio-callsign>]\n", program);
+	exit(1);
+}
+
+int
+main (int argc, char **argv)
+{
+	struct cc_usb	*cc;
+	char		*tty = NULL;
+	char		*device = NULL;
+	int		c;
+	char		line[8192];
+	FILE		*out;
+	char		*filename;
+	int		serial_number = 0;
+	int		freq = 434550;
+	char		*call = "N0CALL";
+	int		flight = 0;
+	char		cmd;
+	int		block;
+	int		addr;
+	int		received_addr;
+	int		data[8];
+	int		done;
+	int		i;
+	int		column;
+	int		remote = 0;
+	int		any_valid;
+	int		invalid;
+	int		storage_size = 0;
+	char		*out_name;
+
+	while ((c = getopt_long(argc, argv, "T:D:F:C:o:R", options, NULL)) != -1) {
+		switch (c) {
+		case 'T':
+			tty = optarg;
+			break;
+		case 'D':
+			device = optarg;
+			break;
+		case 'R':
+			remote = 1;
+			break;
+		case 'F':
+			freq = atoi(optarg);
+			break;
+		case 'C':
+			call = optarg;
+			break;
+		case 'o':
+			out_name = optarg;
+			break;
+		default:
+			usage(argv[0]);
+			break;
+		}
+	}
+	if (!tty) {
+		if (remote)
+			tty = cc_usbdevs_find_by_arg(device, "TeleDongle");
+		else
+			tty = cc_usbdevs_find_by_arg(device, "TeleMetrum");
+	}
+	if (!tty)
+		tty = getenv("ALTOS_TTY");
+	if (!tty)
+		tty="/dev/ttyACM0";
+
+	cc = cc_usb_open(tty);
+	if (!cc)
+		exit(1);
+	if (remote)
+		cc_usb_open_remote(cc, freq, call);
+
+	if (out_name) {
+		out = fopen(out_name, "w");
+		if (!out) {
+			perror(out_name);
+			cc_usb_close(cc);
+			exit(1);
+		}
+	} else
+		out = stdout;
+
+	/* send a 'version' command followed by a 'flash' command */
+	cc_usb_printf(cc, "f\nv\n");
+	for (;;) {
+		cc_usb_getline(cc, line, sizeof (line));
+		if (sscanf(line, "serial-number %u", &serial_number) == 1)
+			continue;
+		if (sscanf(line, "Storage size: %u", &storage_size) == 1)
+			continue;
+		if (!strncmp(line, "software-version", 16))
+			break;
+	}
+	if (!serial_number) {
+		fprintf(stderr, "no serial number found\n");
+		cc_usb_close(cc);
+		exit(1);
+	}
+	if (!storage_size) {
+		fprintf(stderr, "no storage size found\n");
+		cc_usb_close(cc);
+		exit(1);
+	}
+	printf ("Serial number: %d\n", serial_number);
+	printf ("Storage size:  %d\n", storage_size);
+	fprintf (stderr, "%7d of %7d", 0, storage_size/256);
+	for (block = 0; block < storage_size / 256; block++) {
+		cc_usb_printf(cc, "e %x\n", block);
+		fprintf (stderr, "\r%7d of %7d", block + 1, storage_size/256); fflush(stderr);
+		for (addr = 0; addr < 0x100;) {
+			cc_usb_getline(cc, line, sizeof (line));
+			if (sscanf(line, "00%x %x %x %x %x %x %x %x %x",
+					  &received_addr,
+					  &data[0], &data[1], &data[2], &data[3],
+					  &data[4], &data[5], &data[6], &data[7]) == 9)
+			{
+				if (received_addr != addr)
+					fprintf(stderr, "data out of sync at 0x%x\n",
+						block * 256 + received_addr);
+
+				fprintf (out, "%08x", block * 256 + addr);
+				for (i = 0; i < 8; i++)
+					fprintf (out, " %02x", data[i]);
+				fprintf (out, "\n");
+
+				addr += 8;
+			}
+		}
+	}
+	fprintf(stderr, "\n");
+	cc_usb_close(cc);
+	exit (0);
+}