Initial commit
Signed-off-by: Collin J. Doering <collin.doering@rekahsoft.ca>
This commit is contained in:
commit
bfb78be425
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|
@ -0,0 +1,5 @@
|
|||
*.elf
|
||||
*.map
|
||||
*.o
|
||||
*.hex
|
||||
*~
|
||||
|
|
@ -0,0 +1,197 @@
|
|||
|
||||
##########------------------------------------------------------##########
|
||||
########## Project-specific Details ##########
|
||||
########## Check these every time you start a new project ##########
|
||||
##########------------------------------------------------------##########
|
||||
|
||||
MCU = atmega328p
|
||||
F_CPU = 8000000UL
|
||||
BAUD = 19200UL
|
||||
## 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
|
||||
|
|
@ -0,0 +1,179 @@
|
|||
/**
|
||||
* (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: lcdLib.c
|
||||
* Author: Collin J. Doering <collin.doering@rekahsoft.ca>
|
||||
* Date: Sep 29, 2015
|
||||
*/
|
||||
|
||||
//#include <avr/interrupt.h>
|
||||
//#include <avr/power.h>
|
||||
#include <util/delay.h>
|
||||
|
||||
// Include header
|
||||
#include "lcdLib.h"
|
||||
|
||||
// Function definitions
|
||||
void flashLED(uint8_t times) {
|
||||
while (times > 0) {
|
||||
STATUS_LED_PORT |= 1 << STATUS_LED; // turn on status LED
|
||||
_delay_ms(100);
|
||||
STATUS_LED_PORT &= ~(1 << STATUS_LED); // turn status LED off
|
||||
_delay_ms(100);
|
||||
times--;
|
||||
}
|
||||
}
|
||||
|
||||
//------------------------------------
|
||||
|
||||
void clkLCD(void) {
|
||||
LCD_CTRL_PORT |= 1 << LCD_ENABLE;
|
||||
_delay_us(LCD_DELAY);
|
||||
LCD_CTRL_PORT &= ~(1 << LCD_ENABLE);
|
||||
_delay_us(LCD_DELAY);
|
||||
}
|
||||
|
||||
void loop_until_LCD_BF_clear(void) {
|
||||
LCD_CTRL_PORT = (LCD_CTRL_PORT & ~(1 << LCD_RS)) | (1 << LCD_RW); // RS=0, RW=1
|
||||
LCD_DBUS_DDR &= ~(1 << LCD_BF); // Set LCD_BF as input
|
||||
clkLCD();
|
||||
|
||||
STATUS_LED_PORT |= 1 << STATUS_LED; // DEBUG
|
||||
while (bit_is_clear(LCD_DBUS_PIN, LCD_BF)) {
|
||||
clkLCD();
|
||||
}
|
||||
|
||||
/* loop_until_bit_is_clear(LCD_DBUS_PIN, LCD_BF); */
|
||||
STATUS_LED_PORT &= ~(1 << STATUS_LED); // DEBUG
|
||||
|
||||
|
||||
LCD_DBUS_DDR = 0xff; // Reset all LCD_DBUS_PORT pins as outputs
|
||||
}
|
||||
|
||||
void writeLCDInstr_(uint8_t instr) {
|
||||
LCD_CTRL_PORT &= ~((1 << LCD_RS) | (1 << LCD_RW)); // RS=RW=0
|
||||
LCD_DBUS_PORT = instr;
|
||||
clkLCD();
|
||||
}
|
||||
|
||||
void writeLCDInstr(uint8_t instr) {
|
||||
loop_until_LCD_BF_clear(); // Wait until LCD is ready for new instructions
|
||||
|
||||
writeLCDInstr_(instr);
|
||||
}
|
||||
|
||||
void writeCharToLCD_(char c) {
|
||||
LCD_CTRL_PORT |= (1 << LCD_RS); // RS=1
|
||||
LCD_CTRL_PORT &= ~(1 << LCD_RW); // RW=0
|
||||
LCD_DBUS_PORT = c;
|
||||
clkLCD();
|
||||
}
|
||||
|
||||
void writeCharToLCD(char c) {
|
||||
loop_until_LCD_BF_clear(); // Wait until LCD is ready for new instructions
|
||||
|
||||
writeCharToLCD_(c);
|
||||
}
|
||||
|
||||
char readCharFromLCD(void) {
|
||||
loop_until_LCD_BF_clear(); // Wait until LCD is ready for new instructions
|
||||
|
||||
LCD_CTRL_PORT |= (1 << LCD_RW) | (1 << LCD_RW); // RS=RW=1
|
||||
LCD_DBUS_DDR = 0; // Set all LCD_DBUS_PORT pins as inputs
|
||||
clkLCD();
|
||||
|
||||
char c = LCD_DBUS_PIN;
|
||||
LCD_DBUS_DDR = 0xff; // Reset all LCD_DBUS_PORT pins to outputs
|
||||
return c;
|
||||
}
|
||||
|
||||
/*
|
||||
Set all pins of LCD_DBUS_PORT, as well as pins LCD_RS, and LCD_RW, on
|
||||
LCD_CTRL_PORT as outputs
|
||||
*/
|
||||
static inline void enableLCDOutput(void) {
|
||||
LCD_CTRL_DDR |= (1 << LCD_RS) | (1 << LCD_RW) | (1 << LCD_ENABLE);
|
||||
LCD_DBUS_DDR = 0xff;
|
||||
}
|
||||
|
||||
/*
|
||||
Set all pins of LCD_DBUS_PORT as well as LCD_RS, and LCD_RW on LCD_CTRL_PORT as
|
||||
inputs (disabling their output)
|
||||
*/
|
||||
static inline void disableLCDOutput(void) {
|
||||
LCD_CTRL_DDR &= ~((1 << LCD_RS) | (1 << LCD_RW) | (1 << LCD_ENABLE));
|
||||
LCD_DBUS_DDR = 0;
|
||||
}
|
||||
|
||||
static inline void softwareLCDInitPulse(void) {
|
||||
enableLCDOutput();
|
||||
LCD_CTRL_PORT &= ~((1 << LCD_RS) | (1 << LCD_RW)); // RS=RW=0
|
||||
LCD_DBUS_PORT = 0x30;
|
||||
clkLCD();
|
||||
}
|
||||
|
||||
/*
|
||||
Do software initialization as specified by the datasheet
|
||||
*/
|
||||
void initLCD (void) {
|
||||
_delay_ms(30); // Wait 15ms as per datasheet
|
||||
|
||||
softwareLCDInitPulse();
|
||||
|
||||
// Disable transmission and wait minimum 4.1ms as per datasheet
|
||||
//disableLCDOutput();
|
||||
_delay_us(8200);
|
||||
|
||||
softwareLCDInitPulse();
|
||||
|
||||
// Disable transmission and wait minimum 100us as per datasheet
|
||||
//disableLCDOutput();
|
||||
_delay_us(200);
|
||||
|
||||
softwareLCDInitPulse();
|
||||
|
||||
// Function set (2 lines with 5x7 dot character font)
|
||||
writeLCDInstr_(0x38); // RS=RW=0, 0b00111000
|
||||
|
||||
/* BF now has to be checked */
|
||||
|
||||
// Set functions of LCD
|
||||
writeLCDInstr_(0x08); // Display off
|
||||
_delay_ms(1);
|
||||
writeLCDInstr_(0x01); // Clear display
|
||||
_delay_ms(16);
|
||||
//_delay_us(15200 - LCD_DELAY); // Extra delay for clear display
|
||||
writeLCDInstr_(0x06); // Increment mode, no shift
|
||||
_delay_ms(1);
|
||||
writeLCDInstr_(0x0E); // Display on, cursor on, blink off
|
||||
|
||||
flashLED(5); // DEBUG
|
||||
}
|
||||
|
||||
void quickInitLCD(void) {
|
||||
enableLCDOutput();
|
||||
writeLCDInstr_(0x38);
|
||||
writeLCDInstr_(0x0F);
|
||||
writeLCDInstr_(0x06);
|
||||
|
||||
/* writeLCDInstr_(0x01); // Clear display */
|
||||
/* writeLCDInstr_(0x30); // RS=RW=0, 0b00110000 */
|
||||
/* writeLCDInstr_(0x08); // Display off, cursor off, blink off */
|
||||
/* writeLCDInstr_(0x06); // Increment mode, no shift */
|
||||
/* writeLCDInstr_(0x0E); // Display on, cursor on, blink off */
|
||||
}
|
||||
|
|
@ -0,0 +1,74 @@
|
|||
/**
|
||||
* (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: lcdLib.h
|
||||
* Author: Collin J. Doering <collin.doering@rekahsoft.ca>
|
||||
* Date: Sep 29, 2015
|
||||
*/
|
||||
|
||||
// Includes
|
||||
#include <avr/io.h>
|
||||
|
||||
// Constants
|
||||
#define LCD_DBUS_PORT PORTB
|
||||
#define LCD_DBUS_DDR DDRB
|
||||
#define LCD_DBUS_PIN PINB
|
||||
|
||||
#define LCD_CTRL_PORT PORTD
|
||||
#define LCD_CTRL_DDR DDRD
|
||||
|
||||
#define LCD_RS PD2
|
||||
#define LCD_RW PD3
|
||||
#define LCD_ENABLE PD4
|
||||
|
||||
#define LCD_BF PB7
|
||||
|
||||
#define LCD_DELAY 50
|
||||
|
||||
#define STATUS_LED_PORT PORTC
|
||||
#define STATUS_LED_DDR DDRC
|
||||
#define STATUS_LED PC5
|
||||
|
||||
//------------------------------------
|
||||
|
||||
// Function definitions
|
||||
void flashLED(uint8_t times);
|
||||
|
||||
//------------------------------------
|
||||
|
||||
void clkLCD(void);
|
||||
|
||||
void loop_until_LCD_BF_clear(void);
|
||||
|
||||
void writeLCDInstr_(uint8_t instr);
|
||||
|
||||
void writeLCDInstr(uint8_t instr);
|
||||
|
||||
void writeCharToLCD_(char c);
|
||||
|
||||
void writeCharToLCD(char c);
|
||||
|
||||
char readCharFromLCD(void);
|
||||
|
||||
/*
|
||||
Do software initialization as specified by the datasheet
|
||||
*/
|
||||
void initLCD (void);
|
||||
|
||||
void quickInitLCD(void);
|
||||
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
/**
|
||||
* (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: lcdOutput.c
|
||||
* Author: Collin J. Doering <collin.doering@rekahsoft.ca>
|
||||
* Date: Sep 17, 2015
|
||||
*/
|
||||
|
||||
/*---------.
|
||||
| Includes |
|
||||
`---------*/
|
||||
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <avr/power.h>
|
||||
#include <util/delay.h>
|
||||
|
||||
#include "lcdLib.h"
|
||||
|
||||
int main(void) {
|
||||
clock_prescale_set(clock_div_1);
|
||||
|
||||
STATUS_LED_DDR |= 1 << STATUS_LED; // DEBUG
|
||||
|
||||
initLCD();
|
||||
//quickInitLCD();
|
||||
|
||||
while (1) {
|
||||
writeCharToLCD('H');
|
||||
writeCharToLCD('e');
|
||||
writeCharToLCD('l');
|
||||
writeCharToLCD('l');
|
||||
writeCharToLCD('o');
|
||||
writeCharToLCD(' ');
|
||||
writeCharToLCD('t');
|
||||
writeCharToLCD('h');
|
||||
writeCharToLCD('e');
|
||||
writeCharToLCD('r');
|
||||
writeCharToLCD('e');
|
||||
writeCharToLCD(' ');
|
||||
writeCharToLCD('f');
|
||||
writeCharToLCD('r');
|
||||
writeCharToLCD('i');
|
||||
writeCharToLCD('e');
|
||||
writeCharToLCD('n');
|
||||
writeCharToLCD('d');
|
||||
writeCharToLCD('!');
|
||||
|
||||
//flashLED(5); // DEBUG
|
||||
_delay_ms(5000);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue