From 5db8c67f4455bd6ae6655db88dfbd635fa18ba03 Mon Sep 17 00:00:00 2001
From: Robin Krens <robin@robinkrens.nl>
Date: Wed, 18 May 2022 19:24:19 +0200
Subject: [PATCH] makefile: flag changes

---
 Makefile | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 403b201..9abe973 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ AVRSIZE = avr-size
 AVRDUDE = avrdude
 
 CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I.
-CFLAGS = -Os -g -Wall
+CFLAGS = -O -g -Wall
 CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
 
 LDFLAGS = -Wl,-Map,hbc.map
@@ -30,11 +30,17 @@ $(ODIR)/%.o: %.c $(DEPS)
 	$(CC) -c $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) $< -o $@
 
 %.elf: $(OBJ)
-	$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ -o $@
+	$(CC) $(CFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ -o $@
 
 %.hex: %.elf
 	$(OBJCOPY) -j .text -j .data -O ihex $< $@
 
+#
+# for binary output 
+#
+#%.bin: %.elf
+#	$(OBJCOPY) -j .text -j .data -O binary $< $@
+
 all: hbc.hex
 
 .PHONY: clean
@@ -42,13 +48,18 @@ all: hbc.hex
 clean: 
 	rm -rf $(ODIR)/*.o *.hex *.elf *.map
 
-
 check-dev: 
-		$(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD)
+	$(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD)
 
 flash:
 	$(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD) -U flash:w:hbc.hex:i
 
 read-flash-bin:	
-		$(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD) -P /dev/ttyUSB0 -U flash:r:flash.bin:r
+	$(AVRDUDE) -p t25 -c $(PROGRAMMER_TYPE) -b $(BAUD) -P /dev/ttyUSB0 -U flash:r:flash.bin:r
+
+# simulator runs on localhost:1234
+# load .elf file with avr-sim hex.elf
+# and start debugging 
+sim:
+	simavr -f $(F_CPU) -m $(MCU) -g -t hbc.hex
 
-- 
2.7.4