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Restructure project and ready for publishing

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Move current UART echo program that was being used to test the library
into an exmaples folder. Also ready another example
'digital_thermometer'. All examples will have unique Makefiles and
lcdLibConfig.h's but use symbolic links to the libraries to limit
repetition.

Included the boilerplate for a README as well as a GPLv3 LICENSE file.

Signed-off-by: Collin J. Doering <collin.doering@rekahsoft.ca>
This commit is contained in:
Collin J. Doering 2015-10-28 05:55:49 -04:00
parent d8068b8f7a
commit 62eb6bdc82
18 changed files with 1113 additions and 1 deletions
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into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
------------------------------------------------------------------------

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# Flexible character LCD library for AVR Microcontrollers
* [Features](#features)
* [Tools](#tools)
* [License](#license)
* [Building](#building)
* [Issues](#issues)
* [Road Map](#road-map)
## Features <a name="features"></a>
## Tools <a name="tools"></a>
## License <a name="license"></a>
Code licensed under ([GPLv3][]. Please see the LICENSE file for full details.
## Building <a name="building"></a>
## Issues <a name="issues"></a>
## Road Map <a name="road-map"></a>
[Gnu Emacs]: http://www.gnu.org/software/emacs/
[GPLv3]: https://www.gnu.org/licenses/gpl.html

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Makefile → examples/digital_thermometer/Makefile
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examples/digital_thermometer/ansi_escapes.h Symbolic link
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../../ansi_escapes.h

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/**
* (C) Copyright Collin J. Doering 2015
*
* 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/>.
*/
/**
* File: digital_thermometer.c
* Author: Collin J. Doering <collin.doering@rekahsoft.ca>
* Date: Oct 28, 2015
*/
/*---------.
| Includes |
`---------*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/power.h>
#include <util/delay.h>
#include <stdlib.h>
#include "lcdLib.h"
#include "ansi_escapes.h"
int main(void) {
clock_prescale_set(clock_div_1);
initLCD();
while (1) {
// Loop
}
return 0;
}

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examples/digital_thermometer/lcdLib.c Symbolic link
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../../lcdLib.c

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examples/digital_thermometer/lcdLib.h Symbolic link
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../../lcdLib.h

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/**
* (C) Copyright Collin J. Doering 2015
*
* 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/>.
*/
/**
* @file lcdLibConfig.h
* @author Collin J. Doering <collin.doering@rekahsoft.ca>
* @date Oct 4, 2015
* @brief Configuration file for lcdLib.h
*/
// Includes -------------------------------------------------------------------------------
#include <avr/io.h>
//------------------------------------------------------------------------------------------
/**
Usage
=====
Operates in 3 mutually exclusive modes:
1. Default Mode
8-bit mode that requires all its data bus lines be on the same PORT.
2. EIGHT_BIT_ARBITRARY_PIN_MODE
8-bit mode that allows the data bus lines to use any IO pin.
3. FOUR_BIT_MODE
4-bit mode that allows the data bus lines to use any IO pin.
*/
/*
Screen characteristics
*/
#define LCD_CHARACTERS_PER_LINE 20 ///< Number of characters per line of the LCD
#define LCD_NUMBER_OF_LINES 4 ///< Number of lines of the LCD
#define LCD_LINE_BEGINNINGS 0x00, \
0x40, \
0x14, \
0x54 ///< Memory locations for each physical line ordered 1 to LCD_NUMBER_OF_LINES
/* Which font to use (can only leave one uncommented) */
#define LCD_FONT_5x8
//#define LCD_FONT_5x10
/* Support ANSI escapes; comment to disable */
#define LCD_ANSI_ESCAPE_ENABLE
/* Modes */
// Default mode: 8-bit data bus
// 8-bit mode with data bus on arbitrary pins
//#define EIGHT_BIT_ARBITRARY_PIN_MODE
// LCD in 4-bit mode (on arbitrary pins)
#define FOUR_BIT_MODE
/* All mode options */
#define LCD_RS PD2
#define LCD_RS_PORT PORTD
#define LCD_RS_DDR DDRD
#define LCD_RW PD3
#define LCD_RW_PORT PORTD
#define LCD_RW_DDR DDRD
#define LCD_ENABLE PD4
#define LCD_ENABLE_PORT PORTD
#define LCD_ENABLE_DDR DDRD
/*
Mode specific settings
*/
/* Default Mode */
// LCD data bus PORT, PIN and DDR.
#define LCD_DBUS_PORT PORTB
#define LCD_DBUS_DDR DDRB
#define LCD_DBUS_PIN PINB
// This must be set in default mode to the MSB of the data lines
#define LCD_BF PB7
/* EIGHT_BIT_ARBITRARY_PIN_MODE specific settings */
#define LCD_DBUS0 PB0
#define LCD_DBUS0_PORT PORTB
#define LCD_DBUS0_DDR DDRB
#define LCD_DBUS0_PIN PINB
#define LCD_DBUS1 PB1
#define LCD_DBUS1_PORT PORTB
#define LCD_DBUS1_DDR DDRB
#define LCD_DBUS1_PIN PINB
#define LCD_DBUS2 PB2
#define LCD_DBUS2_PORT PORTB
#define LCD_DBUS2_DDR DDRB
#define LCD_DBUS2_PIN PINB
#define LCD_DBUS3 PB3
#define LCD_DBUS3_PORT PORTB
#define LCD_DBUS3_DDR DDRB
#define LCD_DBUS3_PIN PINB
/* FOUR_BIT_MODE and EIGHT_BIT_ARBITRARY_PIN_MODE shared settings */
#define LCD_DBUS4 PB4
#define LCD_DBUS4_PORT PORTB
#define LCD_DBUS4_DDR DDRB
#define LCD_DBUS4_PIN PINB
#define LCD_DBUS5 PB5
#define LCD_DBUS5_PORT PORTB
#define LCD_DBUS5_DDR DDRB
#define LCD_DBUS5_PIN PINB
#define LCD_DBUS6 PB6
#define LCD_DBUS6_PORT PORTB
#define LCD_DBUS6_DDR DDRB
#define LCD_DBUS6_PIN PINB
#define LCD_DBUS7 PB7
#define LCD_DBUS7_PORT PORTB
#define LCD_DBUS7_DDR DDRB
#define LCD_DBUS7_PIN PINB
/* LCD delays (in microseconds when unspecified) */
#define LCD_ENABLE_HIGH_DELAY 25
#define LCD_ENABLE_LOW_DELAY 25
#define LCD_INIT_DELAY0 15000
#define LCD_INIT_DELAY1 8200
#define LCD_INIT_DELAY2 200
#define LCD_CLEAR_DISPLAY_DELAY 16000
#define LCD_RETURN_HOME_DELAY 16000
#define LCD_GENERIC_INSTR_DELAY 50

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##########------------------------------------------------------##########
########## Project-specific Details ##########
########## Check these every time you start a new project ##########
##########------------------------------------------------------##########
MCU = atmega328p
F_CPU = 8000000UL
BAUD = 9600
## Also try BAUD = 19200 or 38400 if you're feeling lucky.
## A directory for common include files and the simple USART library.
## If you move either the current folder or the Library folder, you'll
## need to change this path to match.
#LIBDIR = ../../AVR-Programming-Library
##########------------------------------------------------------##########
########## Programmer Defaults ##########
########## Set up once, then forget about it ##########
########## (Can override. See bottom of file.) ##########
##########------------------------------------------------------##########
PROGRAMMER_TYPE = avrisp
# extra arguments to avrdude: baud rate, chip type, -F flag, etc.
PROGRAMMER_ARGS = -b 19200 -P /dev/ttyUSB0
##########------------------------------------------------------##########
########## Program Locations ##########
########## Won't need to change if they're in your PATH ##########
##########------------------------------------------------------##########
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
AVRSIZE = avr-size
AVRDUDE = avrdude
##########------------------------------------------------------##########
########## Makefile Magic! ##########
########## Summary: ##########
########## We want a .hex file ##########
########## Compile source files into .elf ##########
########## Convert .elf file into .hex ##########
########## You shouldn't need to edit below. ##########
##########------------------------------------------------------##########
## The name of your project (without the .c)
# TARGET = blinkLED
## Or name it automatically after the enclosing directory
TARGET = $(lastword $(subst /, ,$(CURDIR)))
# Object files: will find all .c/.h files in current directory
# and in LIBDIR. If you have any other (sub-)directories with code,
# you can add them in to SOURCES below in the wildcard statement.
SOURCES=$(wildcard *.c $(LIBDIR)/*.c)
OBJECTS=$(SOURCES:.c=.o)
HEADERS=$(SOURCES:.c=.h)
## Compilation options, type man avr-gcc if you're curious.
# Removed "-I$(LIBDIR)" from end of CPPFLAGS
CPPFLAGS = -DF_CPU=$(F_CPU) -DBAUD=$(BAUD) -I.
CFLAGS = -Os -g -std=gnu99 -Wall
## Use short (8-bit) data types
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
## Splits up object files per function
CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS = -Wl,-Map,$(TARGET).map
## Optional, but often ends up with smaller code
LDFLAGS += -Wl,--gc-sections
## Relax shrinks code even more, but makes disassembly messy
## LDFLAGS += -Wl,--relax
## LDFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
## LDFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
TARGET_ARCH = -mmcu=$(MCU)
## Explicit pattern rules:
## To make .o files from .c files
%.o: %.c $(HEADERS) Makefile
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<;
$(TARGET).elf: $(OBJECTS)
$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
%.hex: %.elf
$(OBJCOPY) -j .text -j .data -O ihex $< $@
%.eeprom: %.elf
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
%.lst: %.elf
$(OBJDUMP) -S $< > $@
## These targets don't have files named after them
.PHONY: all disassemble disasm eeprom size clean squeaky_clean flash fuses
all: $(TARGET).hex
debug:
@echo
@echo "Source files:" $(SOURCES)
@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
@echo
# Optionally create listing file from .elf
# This creates approximate assembly-language equivalent of your code.
# Useful for debugging time-sensitive bits,
# or making sure the compiler does what you want.
disassemble: $(TARGET).lst
disasm: disassemble
# Optionally show how big the resulting program is
size: $(TARGET).elf
$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
clean:
rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
$(TARGET).eeprom
squeaky_clean:
rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~ *.eeprom
##########------------------------------------------------------##########
########## Programmer-specific details ##########
########## Flashing code to AVR using avrdude ##########
##########------------------------------------------------------##########
flash: $(TARGET).hex
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
## An alias
program: flash
flash_eeprom: $(TARGET).eeprom
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
avrdude_terminal:
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
## If you've got multiple programmers that you use,
## you can define them here so that it's easy to switch.
## To invoke, use something like `make flash_arduinoISP`
flash_usbtiny: PROGRAMMER_TYPE = usbtiny
flash_usbtiny: PROGRAMMER_ARGS = # USBTiny works with no further arguments
flash_usbtiny: flash
flash_usbasp: PROGRAMMER_TYPE = usbasp
flash_usbasp: PROGRAMMER_ARGS = # USBasp works with no further arguments
flash_usbasp: flash
flash_arduinoISP: PROGRAMMER_TYPE = avrisp
flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P /dev/ttyACM0
## (for windows) flash_arduinoISP: PROGRAMMER_ARGS = -b 19200 -P com5
flash_arduinoISP: flash
flash_109: PROGRAMMER_TYPE = avr109
flash_109: PROGRAMMER_ARGS = -b 9600 -P /dev/ttyUSB0
flash_109: flash
##########------------------------------------------------------##########
########## Fuse settings and suitable defaults ##########
##########------------------------------------------------------##########
## Mega 48, 88, 168, 328 default values
LFUSE = 0x62
HFUSE = 0xdf
EFUSE = 0x00
## Generic
FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
fuses:
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
$(PROGRAMMER_ARGS) $(FUSE_STRING)
show_fuses:
$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
## Called with no extra definitions, sets to defaults
set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m -U efuse:w:$(EFUSE):m
set_default_fuses: fuses
## Set the fuse byte for full-speed mode
## Note: can also be set in firmware for modern chips
set_fast_fuse: LFUSE = 0xE2
set_fast_fuse: FUSE_STRING = -U lfuse:w:$(LFUSE):m
set_fast_fuse: fuses
## Set the EESAVE fuse byte to preserve EEPROM across flashes
set_eeprom_save_fuse: HFUSE = 0xD7
set_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
set_eeprom_save_fuse: fuses
## Clear the EESAVE fuse byte
clear_eeprom_save_fuse: FUSE_STRING = -U hfuse:w:$(HFUSE):m
clear_eeprom_save_fuse: fuses

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../../lcdLib.c

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../../lcdLib.h

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../../lcdLibConfig.h

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../../lcd_instr.h

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*/
/**
* File: lcdOutput.c
* File: uart_echo.c
* Author: Collin J. Doering <collin.doering@rekahsoft.ca>
* Date: Sep 17, 2015
*/