lcd

arduino/LiquidCrystal/HelloWorld/HelloWorld.pde

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+/*
+
+  HelloWorld.pde
+  
+  Character LCD Example
+
+  m2tklib = Mini Interative Interface Toolkit Library
+  
+  Copyright (C) 2011  [email protected]
+
+  This program 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
+  (at your option) any later version.
+
+  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+  
+*/
+
+#include <LiquidCrystal.h>
+#include "M2tk.h"
+
+LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
+
+void setCursor(uint8_t x, uint8_t y)
+{
+  /* translate the x-y position from the m2tklib to the LiquidCrystal lib */
+  /* assume 16x4 display */
+
+  y = 3-y;
+
+  if ( y >= 2 )
+  {
+    x+=16;
+    y-=2;
+  }
+
+  lcd.setCursor(x, y);
+}
+
+uint8_t m2_gh_liquid_crystal(m2_gfx_arg_p  arg)
+{
+  switch(arg->msg)
+  {
+    case M2_GFX_MSG_INIT:		
+      lcd.begin(16, 4);
+      break;
+    case M2_GFX_MSG_DRAW_TEXT:
+      setCursor(arg->x, arg->y);
+      lcd.print(arg->s);
+      break;
+  }
+  return m2_gh_dummy(arg);
+}
+
+M2_LABEL(hello_world_label, NULL, "Hello World!");
+M2tk m2(&hello_world_label, NULL, NULL, m2_gh_liquid_crystal);
+
+void setup() {
+}
+
+void loop() {
+  m2.draw();
+}
+
+

arduino/LiquidCrystal/HelloWorld/Makefile.duemilanove

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+
+#
+# Arduino 0022 Makefile 
+#
+# written by [email protected]
+#
+# Features:
+#   - boards.txt is used to derive parameters
+#   - All intermediate files are put into a separate directory (TMPDIRNAME)
+#   - Simple use: Copy Makefile into the same directory of the .pde file
+#
+# Limitations:
+#   - requires UNIX environment
+#   - TMPDIRNAME must be subdirectory of the current directory.
+#
+# Targets
+# 	all		build everything
+#	upload	build and upload to arduino
+#	clean	remove all temporary files (includes final hex file)
+#
+# History
+#	001	28 Apr 2010	first  release
+#	002  05 Oct 2010	added 'uno'
+#	003  07 May 2011	m2 version
+#
+
+#=== user configuration ===
+# All ...PATH variables must have a '/' at the end
+
+# Board (and prozessor) information: see $(ARDUINO_PATH)hardware/arduino/boards.txt
+# Some examples:
+#	BOARD		DESCRIPTION
+#	uno			Arduino Uno
+#	atmega328	Arduino Duemilanove or Nano w/ ATmega328
+#	diecimila		Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
+#	mega		Arduino Mega
+#	mini			Arduino Mini
+#	lilypad328	LilyPad Arduino w/ ATmega328  
+BOARD:=atmega328
+
+M2TKLIB_PATH:=/home/kraus/src/m2/m2tklib/src/
+M2DEV_PATH:=/home/kraus/src/m2/m2tklib/dev/LiquidCrystal/
+
+# The location where the avr tools (e.g. avr-gcc) are located. Requires a '/' at the end.
+# Can be empty if all tools are accessable through the search path
+AVR_TOOLS_PATH:=/usr/bin/
+
+# Install path of the arduino software. Requires a '/' at the end.
+ARDUINO_PATH:=/home/kraus/prg/arduino-0022/
+
+# Install path for avrdude. Requires a '/' at the end. Can be empty if avrdude is in the search path.
+AVRDUDE_PATH:= 
+
+# The unix device where we can reach the arduino board
+# Uno: /dev/ttyACM0
+# Duemilanove: /dev/ttyUSB0
+AVRDUDE_PORT:=/dev/ttyUSB0
+
+# List of all libaries which should be included.
+EXTRA_DIRS=$(ARDUINO_PATH)libraries/LiquidCrystal/
+EXTRA_DIRS+=/home/kraus/src/m2/m2tklib/dev/arduino/
+EXTRA_DIRS+=/home/kraus/src/m2/m2tklib/cpp/
+
+#=== fetch parameter from boards.txt processor parameter ===
+# the basic idea is to get most of the information from boards.txt
+
+BOARDS_TXT:=$(ARDUINO_PATH)hardware/arduino/boards.txt
+
+# get the MCU value from the $(BOARD).build.mcu variable. For the atmega328 board this is atmega328p
+MCU:=$(shell sed -n -e "s/$(BOARD).build.mcu=\(.*\)/\1/p" $(BOARDS_TXT))
+# get the F_CPU value from the $(BOARD).build.f_cpu variable. For the atmega328 board this is 16000000
+F_CPU:=$(shell sed -n -e "s/$(BOARD).build.f_cpu=\(.*\)/\1/p" $(BOARDS_TXT))
+
+# avrdude
+# get the AVRDUDE_UPLOAD_RATE value from the $(BOARD).upload.speed variable. For the atmega328 board this is 57600
+AVRDUDE_UPLOAD_RATE:=$(shell sed -n -e "s/$(BOARD).upload.speed=\(.*\)/\1/p" $(BOARDS_TXT))
+# get the AVRDUDE_PROGRAMMER value from the $(BOARD).upload.protocol variable. For the atmega328 board this is stk500
+# AVRDUDE_PROGRAMMER:=$(shell sed -n -e "s/$(BOARD).upload.protocol=\(.*\)/\1/p" $(BOARDS_TXT))
+# use stk500v1, because stk500 will default to stk500v2
+AVRDUDE_PROGRAMMER:=stk500v1
+
+#=== identify user files ===
+PDESRC:=$(shell ls *.pde)
+TARGETNAME=$(basename $(PDESRC))
+
+CDIRS:=$(EXTRA_DIRS) $(addsuffix utility/,$(EXTRA_DIRS))
+CDIRS:=*.c utility/*.c $(M2TKLIB_PATH)*.c $(M2DEV_PATH)*.c $(addsuffix *.c,$(CDIRS)) $(ARDUINO_PATH)hardware/arduino/cores/arduino/*.c
+#CDIRS:=*.c utility/*.c $(addsuffix *.c,$(CDIRS)) $(ARDUINO_PATH)hardware/arduino/cores/arduino/*.c
+CSRC:=$(shell ls $(CDIRS) 2>/dev/null)
+
+CCSRC:=$(shell ls *.cc 2>/dev/null)
+
+CPPDIRS:=$(EXTRA_DIRS) $(addsuffix utility/,$(EXTRA_DIRS))
+CPPDIRS:=*.cpp utility/*.cpp $(addsuffix *.cpp,$(CPPDIRS)) $(ARDUINO_PATH)hardware/arduino/cores/arduino/*.cpp 
+CPPSRC:=$(shell ls $(CPPDIRS) 2>/dev/null)
+
+#=== build internal variables ===
+
+# the name of the subdirectory where everything is stored
+TMPDIRNAME:=tmp
+TMPDIRPATH:=$(TMPDIRNAME)/
+
+AVRTOOLSPATH:=$(AVR_TOOLS_PATH)
+
+OBJCOPY:=$(AVRTOOLSPATH)avr-objcopy
+OBJDUMP:=$(AVRTOOLSPATH)avr-objdump
+SIZE:=$(AVRTOOLSPATH)avr-size
+
+CPPSRC:=$(addprefix $(TMPDIRPATH),$(PDESRC:.pde=.cpp)) $(CPPSRC)
+
+COBJ:=$(CSRC:.c=.o)
+CCOBJ:=$(CCSRC:.cc=.o)
+CPPOBJ:=$(CPPSRC:.cpp=.o)
+
+OBJFILES:=$(COBJ) $(CCOBJ) $(CPPOBJ)
+DIRS:= $(dir $(OBJFILES))
+
+DEPFILES:=$(OBJFILES:.o=.d)
+# assembler files from avr-gcc -S
+ASSFILES:=$(OBJFILES:.o=.s)
+# disassembled object files with avr-objdump -S
+DISFILES:=$(OBJFILES:.o=.dis)
+
+
+LIBNAME:=$(TMPDIRPATH)$(TARGETNAME).a
+ELFNAME:=$(TMPDIRPATH)$(TARGETNAME).elf
+HEXNAME:=$(TMPDIRPATH)$(TARGETNAME).hex
+
+AVRDUDE_FLAGS = -V -F
+AVRDUDE_FLAGS += -C $(ARDUINO_PATH)/hardware/tools/avrdude.conf 
+AVRDUDE_FLAGS += -p $(MCU)
+AVRDUDE_FLAGS += -P $(AVRDUDE_PORT)
+AVRDUDE_FLAGS += -c $(AVRDUDE_PROGRAMMER) 
+AVRDUDE_FLAGS += -b $(AVRDUDE_UPLOAD_RATE)
+AVRDUDE_FLAGS += -U flash:w:$(HEXNAME)
+
+AVRDUDE = avrdude
+
+#=== predefined variable override ===
+# use "make -p -f/dev/null" to see the default rules and definitions
+
+# Build C and C++ flags. Include path information must be placed here
+COMMON_FLAGS = -DF_CPU=$(F_CPU) -mmcu=$(MCU) $(DEFS)
+# COMMON_FLAGS += -gdwarf-2
+COMMON_FLAGS += -Os
+COMMON_FLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections
+COMMON_FLAGS += -Wl,--relax
+COMMON_FLAGS += -mcall-prologues 
+COMMON_FLAGS += -Wall -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
+COMMON_FLAGS += -I. -I$(M2TKLIB_PATH) -I$(M2DEV_PATH)
+COMMON_FLAGS += -I$(ARDUINO_PATH)hardware/arduino/cores/arduino
+COMMON_FLAGS += $(addprefix -I,$(EXTRA_DIRS)) $(addprefix -I,$(addsuffix utility/,$(EXTRA_DIRS)))
+
+CFLAGS = $(COMMON_FLAGS) -std=gnu99 -Wstrict-prototypes  
+CXXFLAGS = $(COMMON_FLAGS) 
+
+# Replace standard build tools by avr tools
+CC = $(AVRTOOLSPATH)avr-gcc
+CXX = $(AVRTOOLSPATH)avr-g++
+AR  = @$(AVRTOOLSPATH)avr-ar
+
+
+# "rm" must be able to delete a directory tree
+RM = rm -rf 
+
+#=== rules ===
+
+# add rules for the C/C++ files where the .o file is placed in the TMPDIRPATH
+# reuse existing variables as far as possible
+
+$(TMPDIRPATH)%.o: %.c
+	@echo compile $<
+	@$(COMPILE.c) $(OUTPUT_OPTION) $<
+
+$(TMPDIRPATH)%.o: %.cc
+	@echo compile $< 
+	@$(COMPILE.cc) $(OUTPUT_OPTION) $<
+
+$(TMPDIRPATH)%.o: %.cpp
+	@echo compile $<
+	@$(COMPILE.cpp) $(OUTPUT_OPTION) $<
+
+$(TMPDIRPATH)%.s: %.c
+	@$(COMPILE.c) $(OUTPUT_OPTION) -S $<
+
+$(TMPDIRPATH)%.s: %.cc
+	@$(COMPILE.cc) $(OUTPUT_OPTION) -S $<
+
+$(TMPDIRPATH)%.s: %.cpp
+	@$(COMPILE.cpp) $(OUTPUT_OPTION) -S $<
+
+$(TMPDIRPATH)%.dis: $(TMPDIRPATH)%.o
+	@$(OBJDUMP) -S $< > $@
+
+.SUFFIXES: .elf .hex .pde
+
+.elf.hex:
+	@$(OBJCOPY) -O ihex -R .eeprom $< $@
+
+$(TMPDIRPATH)%.cpp: %.pde  
+	@cat $(ARDUINO_PATH)hardware/arduino/cores/arduino/main.cpp > $@
+	@cat $< >> $@
+	@echo >> $@
+	@echo 'extern "C" void __cxa_pure_virtual() { while (1); }' >> $@
+
+
+.PHONY: all
+all: tmpdir $(HEXNAME) assemblersource showsize
+	ls -al $(HEXNAME) $(ELFNAME)
+
+$(ELFNAME): $(LIBNAME)($(addprefix $(TMPDIRPATH),$(OBJFILES))) 
+	$(LINK.o) $(COMMON_FLAGS) $(LIBNAME) $(LOADLIBES) $(LDLIBS) -o $@
+
+$(LIBNAME)(): $(addprefix $(TMPDIRPATH),$(OBJFILES))
+
+#=== create temp directory ===
+# not really required, because it will be also created during the dependency handling
+.PHONY: tmpdir
+tmpdir:
+	@test -d $(TMPDIRPATH) || mkdir $(TMPDIRPATH)
+
+#=== create assembler files for each C/C++ file ===
+.PHONY: assemblersource
+assemblersource: $(addprefix $(TMPDIRPATH),$(ASSFILES)) $(addprefix $(TMPDIRPATH),$(DISFILES))
+
+
+#=== show the section sizes of the ELF file ===
+.PHONY: showsize
+showsize: $(ELFNAME)
+	$(SIZE) $<
+
+#=== clean up target ===
+# this is simple: the TMPDIRPATH is removed
+.PHONY: clean
+clean:
+	$(RM) $(TMPDIRPATH)
+
+# Program the device.  
+# step 1: reset the arduino board with the stty command
+# step 2: user avrdude to upload the software
+.PHONY: upload
+upload: $(HEXNAME)
+	stty -F $(AVRDUDE_PORT) hupcl
+	$(AVRDUDE) $(AVRDUDE_FLAGS)
+
+
+# === dependency handling ===
+# From the gnu make manual (section 4.14, Generating Prerequisites Automatically)
+# Additionally (because this will be the first executed rule) TMPDIRPATH is created here.
+# Instead of "sed" the "echo" command is used
+# cd $(TMPDIRPATH); mkdir -p $(DIRS) 2> /dev/null; cd ..
+DEPACTION=test -d $(TMPDIRPATH) || mkdir $(TMPDIRPATH);\
+mkdir -p $(addprefix $(TMPDIRPATH),$(DIRS));\
+set -e; echo -n $@ $(dir $@) > $@; $(CC) -MM $(COMMON_FLAGS) $< >> $@
+
+
+$(TMPDIRPATH)%.d: %.c
+	@$(DEPACTION)
+
+$(TMPDIRPATH)%.d: %.cc
+	@$(DEPACTION)
+
+
+$(TMPDIRPATH)%.d: %.cpp
+	@$(DEPACTION)
+
+# Include dependency files. If a .d file is missing, a warning is created and the .d file is created
+# This warning is not a problem (gnu make manual, section 3.3 Including Other Makefiles)
+-include $(addprefix $(TMPDIRPATH),$(DEPFILES))
+
+