From 8b3eb8eaac623542e764a443a58074b83d5f7fc1 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Mon, 27 Aug 2018 14:16:19 +0700
Subject: [PATCH] seperate mergehex from genhex

---
 Makefile | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 9f39a6e..a3e9edc 100644
--- a/Makefile
+++ b/Makefile
@@ -453,9 +453,15 @@ genhex: $(BUILD)/$(OUTPUT_FILENAME).hex
 
 $(BUILD)/$(OUTPUT_FILENAME).hex: $(BUILD)/$(OUTPUT_FILENAME).out
 	@echo CR $(OUTPUT_FILENAME).hex
-	@echo CR $(MERGED_FNAME).hex
 	$(QUIET)$(OBJCOPY) -O ihex $< $@
-	@mergehex -q -m $@ $(SD_HEX) -o $(BUILD)/$(MERGED_FNAME).hex
+
+
+# merge bootloader and sd hex together
+combinehex: $(BUILD)/$(MERGED_FNAME).hex
+
+$(BUILD)/$(MERGED_FNAME).hex: $(BUILD)/$(OUTPUT_FILENAME).hex
+	@echo CR $(MERGED_FNAME).hex
+	@mergehex -q -m $< $(SD_HEX) -o $@
 
 ## Create pkg file for bootloader+SD combo to use with DFU
 genpkg: $(BUILD)/$(MERGED_FNAME).zip
@@ -464,7 +470,7 @@ $(BUILD)/$(MERGED_FNAME).zip: $(BUILD)/$(OUTPUT_FILENAME).hex
 	@$(NRFUTIL) dfu genpkg --dev-type 0x0052 --dev-revision $(DFU_DEV_REV) --bootloader $< --softdevice $(SD_HEX) $@ 
 
 # Create SD+bootloader combo with hex & dfu package at release folder
-release: genhex genpkg
+release: combinehex genpkg
 	@echo CR $(RELEASE_DIR)/$(MERGED_FNAME).hex
 	@echo CR $(RELEASE_DIR)/$(MERGED_FNAME).zip
 	@mkdir -p $(RELEASE_DIR)