From c3db73e8e651306a374178109353563f93b5bc21 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sun, 6 May 2012 19:23:17 +0000
Subject: first working version for blink

git-svn-id: https://svn.spreadspace.org/avr/trunk@3 aa12f405-d877-488e-9caf-2d797e2a1cc7
---
 blink/Makefile | 27 +++++++++++++++++++++++++++
 blink/blink.c  | 18 ++++++++++++++++++
 include.mk     | 53 ++++++++++++++++++++++++++++++++++++++++-------------
 3 files changed, 85 insertions(+), 13 deletions(-)
 create mode 100644 blink/Makefile
 create mode 100644 blink/blink.c

diff --git a/blink/Makefile b/blink/Makefile
new file mode 100644
index 0000000..e863040
--- /dev/null
+++ b/blink/Makefile
@@ -0,0 +1,27 @@
+##
+##  spreadspace teensy utils
+##
+##
+##  Copyright (C) 2011 Christian Pointner <equinox@spreadspace.org>
+##                         
+##  This file is part of spreadspace teensy utils.
+##
+##  spreadspace teensy utils is free software: you can redistribute it and/or modify
+##  it under the terms of the GNU General Public License as published by
+##  the Free Software Foundation, either version 3 of the License, or
+##  any later version.
+##
+##  spreadspace teensy utils is distributed in the hope that it will be useful,
+##  but WITHOUT ANY WARRANTY; without even the implied warranty of
+##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##  GNU General Public License for more details.
+##
+##  You should have received a copy of the GNU General Public License
+##  along with spreadspace teensy utils. If not, see <http://www.gnu.org/licenses/>.
+##
+
+NAME := blink
+OBJ := blink.o
+BOARD_TYPE := teensy2
+
+include ../include.mk
diff --git a/blink/blink.c b/blink/blink.c
new file mode 100644
index 0000000..79f884b
--- /dev/null
+++ b/blink/blink.c
@@ -0,0 +1,18 @@
+/*
+ *  Blinks the led using a simple delay loop.
+ */
+
+#include "avr/io.h"
+#include "util/delay.h"
+
+int main(void)
+{ 
+  PORTE = 0x00;
+  DDRE = 0x00;
+
+  for(;;) {
+    _delay_ms(250);
+    PORTE ^= 1<<PORTE6;
+  }
+}
+
diff --git a/include.mk b/include.mk
index 2efc96e..62a5ab3 100644
--- a/include.mk
+++ b/include.mk
@@ -20,21 +20,21 @@
 ##  along with spreadspace teensy utils. If not, see <http://www.gnu.org/licenses/>.
 ##
 
-#NAME := 
-#OBJ := 
-#BOARD_TYPE := 
-
 ifeq ($(BOARD_TYPE),teensy1)
 MCU := at90usb162
+F_CPU := 16000000
 endif
 ifeq ($(BOARD_TYPE),teensy2)
 MCU := atmega32u4
+F_CPU := 16000000
 endif
 ifeq ($(BOARD_TYPE),teensypp1)
 MCU := at90usb646
+F_CPU := 16000000
 endif
 ifeq ($(BOARD_TYPE),teensypp2)
 MCU := at90usb1286
+F_CPU := 16000000
 endif
 FORMAT := ihex
 
@@ -45,15 +45,35 @@ SIZE = avr-size
 AR = avr-ar rcs
 NM = avr-nm
 COPY = cp
-
+DFU = dfu-programmer
+
+## Options common to compile, link and assembly rules
+COMMON = -mmcu=$(MCU)
+
+## Compile options common for all C compilation units.
+CFLAGS = $(COMMON) 
+CFLAGS += -O2
+CFLAGS += -funsigned-char
+CFLAGS += -funsigned-bitfields
+CFLAGS += -ffunction-sections
+CFLAGS += -fpack-struct
+CFLAGS += -fshort-enums
+CFLAGS += -Wall
+CFLAGS += -Wstrict-prototypes
+CFLAGS += -DF_CPU=$(F_CPU)UL
+
+## Linker flags
+LDFLAGS = $(COMMON)
+LDFLAGS += 
 
 SRC := $(OBJ:%.o=%.c)
 
 .PHONY: clean cleanall distclean program
 
 ELFFILE := $(NAME).elf
+HEXFILE := $(NAME).hex
 
-all: $(ELFFILE)
+all: $(HEXFILE)
 
 %.d: %.c
 	@set -e; rm -f $@; \
@@ -68,27 +88,34 @@ endif
 $(ELFFILE): $(OBJ)
 	$(CC) $(OBJ) -o $@ $(LDFLAGS)
 
+$(HEXFILE): $(ELFFILE)
+	$(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature $< $(HEXFILE)
+
 %.o: %.c
 	$(CC) $(CFLAGS) -c $<
 
-
 strip: $(ELFFILE)
 	$(STRIP) -s $(ELFFILE)
 
 distclean: cleanall
 	find . -name *.o -exec rm -f {} \;
 	find . -name "*.\~*" -exec rm -rf {} \;
-	rm -f include.mk
-	rm -f version.h
-	rm -f tun.c
 
 clean:
 	rm -f *.o
 	rm -f *.d
 	rm -f *.d.*
 	rm -f $(ELFFILE)
+	rm -f $(HEXFILE)
+
+erase:
+	$(DFU) $(MCU) erase | true
+
+program: $(HEXFILE) erase
+	$(DFU) $(MCU) flash $<
 
-program: $(ELFFILE)
-  $(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature $< $(ELFFILE:%.elf=%.hex)
-  teensy_loader_cli -mmcu=$(MCU) -w -v $@
+reset:
+	$(DFU) $(MCU) reset
 
+run:
+	$(DFU) $(MCU) start
-- 
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