From c071f0b28e2e3758fc767a4755f2e80117adfa15 Mon Sep 17 00:00:00 2001
From: Tristan Krause <tristan.krause@stud.htwk-leipzig.de>
Date: Wed, 15 May 2019 14:22:16 +0200
Subject: [PATCH] makefile fuse check

---
 firmware/Makefile | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/firmware/Makefile b/firmware/Makefile
index f50e224..730ea66 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -3,6 +3,13 @@
 # Author: Tristan Krause
 # Creation Date: 2019-03-22
 
+# MCU Options
+LFUSE = D2
+HFUSE = 91
+EFUSE = FF
+F_CPU = 20000000
+DEBUG = -DB15F_DEBUG
+
 # Environment
 COMPILER_PATH = avr-g++
 OBJCOPY_PATH = avr-objcopy
@@ -10,14 +17,15 @@ OBJCOPY_PATH = avr-objcopy
 # Optionen
 PROGRAMMER = avrispmkII
 OUTPUT     = B15F.elf
-HEX	       = B15F.hex
-MCU	       = atmega1284p
-CFLAGS     = -Wall -Wextra -std=c++14 -O3 -mmcu=$(MCU) -DF_CPU=20000000 -DB15F_DEBUG
+HEX	   = B15F.hex
+MCU	   = atmega1284p
+CFLAGS     = -Wall -Wextra -std=c++14 -O3 -mmcu=$(MCU) -DF_CPU=$(F_CPU) $(DEBUG)
 LDFLAGS    = 
 OBJECTS    = main.o spi.o mcp23s17.o tlc5615.o adu.o selftest.o global_vars.o usart.o requests.o interrupts.o
 
 
 COMPILE = $(COMPILER_PATH) $(CFLAGS)
+FUSES = (E:$(EFUSE), H:$(HFUSE), L:$(LFUSE))
 
 B15F: $(OBJECTS)
 	@echo "Linking..."
@@ -34,7 +42,12 @@ clean:
 	@echo "Cleaning..."
 	rm -f $(OBJECTS) $(OUTPUT) $(HEX)
 
-upload: B15F
+checkfuses:
+	@echo ""
+	@echo "Checking fuses..."
+	bash -c 'diff -B <( echo "$(FUSES)" ) <( avrdude -Pusb -p $(MCU) -c $(PROGRAMMER) 2>&1 | grep "safemode: Fuses OK" | tail -c 19 ) >/dev/null || avrdude -Pusb -p $(MCU) -c $(PROGRAMMER) -U lfuse:w:0x$(LFUSE):m -U hfuse:w:0x$(HFUSE):m -U efuse:w:0x$(EFUSE):m'
+
+upload: B15F checkfuses
 	avrdude -Pusb -p $(MCU) -c $(PROGRAMMER) -U flash:w:$(HEX)
 
 .cpp.o: