--- a/Makefile	Sun Mar 22 13:18:11 2015 +0000
+++ b/Makefile	Sun Mar 22 13:23:18 2015 +0000
@@ -34,7 +34,7 @@
 	stm32flash -w $< -b 57600 -v -g 0 $(TTYISP)
 
 backup:
-	stm32flash -r vcc-gnd.bin -b 115200 $(TTYISP)
+	stm32flash -r vcc-gnd.bin -b 57600 $(TTYISP)
 
 distclean:clean
 	find . -name "*~" -delete