Makefile 'restart' target

Useful for some tests...

Makefile

@@ -58,3 +58,7 @@ chip_erase:
 
 reset:
 	dfu-programmer atmega32u2 reset
+
+restart:
+	- ./scripts/enter_bootloader.sh
+	./scripts/start.sh $(CPU)

scripts/start.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+if [ $# -ne 1 ]; then
+	echo "Syntax: ./start.sh CPU"
+	exit 1;
+fi
+
+CPU=$1
+
+echo "Polling for chip..."
+while true; do
+	dfu-programmer $1 start
+	if [ $? -eq 0 ]; then
+		echo "Chip found. Started."
+		break;
+	fi
+
+	sleep 1
+done
+
+