Merge pull request #8 from ThatcherC/add-backup

Add backup script

.gitignore

@@ -25,6 +25,7 @@
 *.BAK
 *.orig
 \#*#
+firmware-backups/
 
 # Tag files
 /tags

README.md

@@ -18,6 +18,10 @@ In order to program the buds from inside of the docker container; privileged mod
 ./build.sh # This will run make and build the output program. If you have weird build errors try running clean.sh or rm -rf'ing the out folder first
 
 # Now that the firmware has finished building; if there are no errors you can load it to your buds
+
+# You may want to back up the firmware currently on the buds - it will be deleted when the new firmware is loaded on:
+./backup.sh
+
 # You may need to take the buds out of the case, wait three seconds, place them back. This wakes them up and the programmer needs to catch this reboot.
 
 # You can try the helper script by running

backup.sh

@@ -0,0 +1,21 @@
+#! /bin/bash
+
+BKPPATH="firmware-backups"
+
+mkdir -p $BKPPATH
+
+NOW=$(date +%s)
+
+num=$(ls -l /dev/ttyACM* | rev | cut -c 1)
+echo com is:$num
+splitPorts=($num)
+echo "This tool assumes your buds are the only thing connected and are enumerated {right,left} order. YMMV"
+echo "Right bud is at ${splitPorts[0]}"
+echo "Left bud is at ${splitPorts[1]}"
+
+echo "Please disconnect and reconnect the bud on the right"
+
+bestool read-image --port /dev/ttyACM${splitPorts[0]} $BKPPATH/firmware-$NOW-${splitPorts[0]}.bin.bkp
+
+echo "Please disconnect and reconnect the bud on the left"
+bestool read-image --port /dev/ttyACM${splitPorts[1]} $BKPPATH/firmware-$NOW-${splitPorts[1]}.bin.bkp