From 62eb6bdc82403bd49bf8c710acf24bd3588f3ce6 Mon Sep 17 00:00:00 2001 From: "Collin J. Doering" Date: Wed, 28 Oct 2015 05:55:49 -0400 Subject: [PATCH] Restructure project and ready for publishing 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 --- LICENSE | 677 ++++++++++++++++++ README.md | 26 + .../digital_thermometer/Makefile | 0 examples/digital_thermometer/ansi_escapes.h | 1 + .../digital_thermometer/digital_thermometer.c | 47 ++ examples/digital_thermometer/lcdLib.c | 1 + examples/digital_thermometer/lcdLib.h | 1 + examples/digital_thermometer/lcdLibConfig.h | 156 ++++ examples/digital_thermometer/lcd_instr.h | 1 + examples/uart_echo/Makefile | 197 +++++ USART.c => examples/uart_echo/USART.c | 0 USART.h => examples/uart_echo/USART.h | 0 examples/uart_echo/ansi_escapes.h | 1 + examples/uart_echo/lcdLib.c | 1 + examples/uart_echo/lcdLib.h | 1 + examples/uart_echo/lcdLibConfig.h | 1 + examples/uart_echo/lcd_instr.h | 1 + lcdOutput.c => examples/uart_echo/uart_echo.c | 2 +- 18 files changed, 1113 insertions(+), 1 deletion(-) create mode 100644 LICENSE create mode 100644 README.md rename Makefile => examples/digital_thermometer/Makefile (100%) create mode 120000 examples/digital_thermometer/ansi_escapes.h create mode 100644 examples/digital_thermometer/digital_thermometer.c create mode 120000 examples/digital_thermometer/lcdLib.c create mode 120000 examples/digital_thermometer/lcdLib.h create mode 100644 examples/digital_thermometer/lcdLibConfig.h create mode 120000 examples/digital_thermometer/lcd_instr.h create mode 100644 examples/uart_echo/Makefile rename USART.c => examples/uart_echo/USART.c (100%) rename USART.h => examples/uart_echo/USART.h (100%) create mode 120000 examples/uart_echo/ansi_escapes.h create mode 120000 examples/uart_echo/lcdLib.c create mode 120000 examples/uart_echo/lcdLib.h create mode 120000 examples/uart_echo/lcdLibConfig.h create mode 120000 examples/uart_echo/lcd_instr.h rename lcdOutput.c => examples/uart_echo/uart_echo.c (99%) diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..8be83cc --- /dev/null +++ b/LICENSE @@ -0,0 +1,677 @@ + + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +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 +. + +------------------------------------------------------------------------ diff --git a/README.md b/README.md new file mode 100644 index 0000000..78f6f69 --- /dev/null +++ b/README.md @@ -0,0 +1,26 @@ +# Flexible character LCD library for AVR Microcontrollers + +* [Features](#features) +* [Tools](#tools) +* [License](#license) +* [Building](#building) +* [Issues](#issues) +* [Road Map](#road-map) + +## Features + +## Tools + +## License + +Code licensed under ([GPLv3][]. Please see the LICENSE file for full details. + +## Building + +## Issues + +## Road Map + + +[Gnu Emacs]: http://www.gnu.org/software/emacs/ +[GPLv3]: https://www.gnu.org/licenses/gpl.html diff --git a/Makefile b/examples/digital_thermometer/Makefile similarity index 100% rename from Makefile rename to examples/digital_thermometer/Makefile diff --git a/examples/digital_thermometer/ansi_escapes.h b/examples/digital_thermometer/ansi_escapes.h new file mode 120000 index 0000000..0a80a7e --- /dev/null +++ b/examples/digital_thermometer/ansi_escapes.h @@ -0,0 +1 @@ +../../ansi_escapes.h \ No newline at end of file diff --git a/examples/digital_thermometer/digital_thermometer.c b/examples/digital_thermometer/digital_thermometer.c new file mode 100644 index 0000000..7d7f183 --- /dev/null +++ b/examples/digital_thermometer/digital_thermometer.c @@ -0,0 +1,47 @@ +/** + * (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 . + */ + +/** + * File: digital_thermometer.c + * Author: Collin J. Doering + * Date: Oct 28, 2015 + */ + +/*---------. +| Includes | +`---------*/ + +#include +#include +#include +#include +#include + +#include "lcdLib.h" +#include "ansi_escapes.h" + +int main(void) { + clock_prescale_set(clock_div_1); + + initLCD(); + + while (1) { + // Loop + } + + return 0; +} diff --git a/examples/digital_thermometer/lcdLib.c b/examples/digital_thermometer/lcdLib.c new file mode 120000 index 0000000..e3ba803 --- /dev/null +++ b/examples/digital_thermometer/lcdLib.c @@ -0,0 +1 @@ +../../lcdLib.c \ No newline at end of file diff --git a/examples/digital_thermometer/lcdLib.h b/examples/digital_thermometer/lcdLib.h new file mode 120000 index 0000000..0e275ca --- /dev/null +++ b/examples/digital_thermometer/lcdLib.h @@ -0,0 +1 @@ +../../lcdLib.h \ No newline at end of file diff --git a/examples/digital_thermometer/lcdLibConfig.h b/examples/digital_thermometer/lcdLibConfig.h new file mode 100644 index 0000000..bdc9b58 --- /dev/null +++ b/examples/digital_thermometer/lcdLibConfig.h @@ -0,0 +1,156 @@ +/** + * (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 . +*/ + +/** + * @file lcdLibConfig.h + * @author Collin J. Doering + * @date Oct 4, 2015 + * @brief Configuration file for lcdLib.h + */ + +// Includes ------------------------------------------------------------------------------- + +#include + +//------------------------------------------------------------------------------------------ + +/** + 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 diff --git a/examples/digital_thermometer/lcd_instr.h b/examples/digital_thermometer/lcd_instr.h new file mode 120000 index 0000000..490d858 --- /dev/null +++ b/examples/digital_thermometer/lcd_instr.h @@ -0,0 +1 @@ +../../lcd_instr.h \ No newline at end of file diff --git a/examples/uart_echo/Makefile b/examples/uart_echo/Makefile new file mode 100644 index 0000000..fe24e04 --- /dev/null +++ b/examples/uart_echo/Makefile @@ -0,0 +1,197 @@ + +##########------------------------------------------------------########## +########## 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 diff --git a/USART.c b/examples/uart_echo/USART.c similarity index 100% rename from USART.c rename to examples/uart_echo/USART.c diff --git a/USART.h b/examples/uart_echo/USART.h similarity index 100% rename from USART.h rename to examples/uart_echo/USART.h diff --git a/examples/uart_echo/ansi_escapes.h b/examples/uart_echo/ansi_escapes.h new file mode 120000 index 0000000..0a80a7e --- /dev/null +++ b/examples/uart_echo/ansi_escapes.h @@ -0,0 +1 @@ +../../ansi_escapes.h \ No newline at end of file diff --git a/examples/uart_echo/lcdLib.c b/examples/uart_echo/lcdLib.c new file mode 120000 index 0000000..e3ba803 --- /dev/null +++ b/examples/uart_echo/lcdLib.c @@ -0,0 +1 @@ +../../lcdLib.c \ No newline at end of file diff --git a/examples/uart_echo/lcdLib.h b/examples/uart_echo/lcdLib.h new file mode 120000 index 0000000..0e275ca --- /dev/null +++ b/examples/uart_echo/lcdLib.h @@ -0,0 +1 @@ +../../lcdLib.h \ No newline at end of file diff --git a/examples/uart_echo/lcdLibConfig.h b/examples/uart_echo/lcdLibConfig.h new file mode 120000 index 0000000..e29a826 --- /dev/null +++ b/examples/uart_echo/lcdLibConfig.h @@ -0,0 +1 @@ +../../lcdLibConfig.h \ No newline at end of file diff --git a/examples/uart_echo/lcd_instr.h b/examples/uart_echo/lcd_instr.h new file mode 120000 index 0000000..490d858 --- /dev/null +++ b/examples/uart_echo/lcd_instr.h @@ -0,0 +1 @@ +../../lcd_instr.h \ No newline at end of file diff --git a/lcdOutput.c b/examples/uart_echo/uart_echo.c similarity index 99% rename from lcdOutput.c rename to examples/uart_echo/uart_echo.c index 57da653..44eebab 100644 --- a/lcdOutput.c +++ b/examples/uart_echo/uart_echo.c @@ -16,7 +16,7 @@ */ /** - * File: lcdOutput.c + * File: uart_echo.c * Author: Collin J. Doering * Date: Sep 17, 2015 */