From fee9475f7afde691c81dadb3da65f592f3da71e4 Mon Sep 17 00:00:00 2001
From: rusefi <rusefillc@gmail.com>
Date: Mon, 29 Jan 2024 16:32:50 -0500
Subject: [PATCH] duplication and documentation

---
 firmware/config/boards/common_script.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/firmware/config/boards/common_script.sh b/firmware/config/boards/common_script.sh
index 948c28acc9..8f87dff92e 100644
--- a/firmware/config/boards/common_script.sh
+++ b/firmware/config/boards/common_script.sh
@@ -50,8 +50,10 @@ chmod u+x $HEX2DFU
 mkdir -p deliver
 rm -f deliver/*
 
+CONTROL_SUM_OPTION="-C 0x1C"
+
 echo "$SCRIPT_NAME: invoking hex2dfu for incremental rusEFI image"
-$HEX2DFU -i build/rusefi.hex -C 0x1C -o build/rusefi.dfu
+$HEX2DFU -i build/rusefi.hex $CONTROL_SUM_OPTION -o build/rusefi.dfu
 
 if [ "$USE_OPENBLT" = "yes" ]; then
   # this image is suitable for update through bootloader only
@@ -83,7 +85,7 @@ if [ "$USE_OPENBLT" = "yes" ]; then
   #cp bootloader/blbuild/openblt_$PROJECT_BOARD.hex  deliver/openblt.hex
 
   echo "$SCRIPT_NAME: invoking hex2dfu for composite rusEFI+OpenBLT image"
-  $HEX2DFU -i bootloader/blbuild/openblt_$PROJECT_BOARD.hex -i build/rusefi.hex -C 0x1C -o deliver/rusefi.dfu -b deliver/rusefi.bin
+  $HEX2DFU -i bootloader/blbuild/openblt_$PROJECT_BOARD.hex -i build/rusefi.hex $CONTROL_SUM_OPTION -o deliver/rusefi.dfu -b deliver/rusefi.bin
 fi
 
 echo "$SCRIPT_NAME: build folder content:"