pull/1/head
parent
868f28bff1
commit
6481532760
@ -1 +0,0 @@ |
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Subproject commit 4eaff23a1d463fd916f5a983fd202e0707c12af7 |
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@ -0,0 +1,153 @@ |
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MCU = attiny13
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F_CPU = 9600000
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LFUSE = 0x72
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HFUSE = 0xFF
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MAIN = main.c
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## If you've split your program into multiple files,
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## include the additional .c source (in same directory) here
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## (and include the .h files in your foo.c)
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LOCAL_SOURCE =
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## Here you can link to one more directory (and multiple .c files)
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# EXTRA_SOURCE_DIR = ../AVR-Programming-Library/
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EXTRA_SOURCE_DIR =
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EXTRA_SOURCE_FILES =
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##########------------------------------------------------------##########
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########## Programmer Defaults ##########
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########## Set up once, then forget about it ##########
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########## (Can override. See bottom of file.) ##########
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##########------------------------------------------------------##########
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PROGRAMMER_TYPE = dragon_isp
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PROGRAMMER_ARGS =
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##########------------------------------------------------------##########
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########## Makefile Magic! ##########
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########## Summary: ##########
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########## We want a .hex file ##########
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########## Compile source files into .elf ##########
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########## Convert .elf file into .hex ##########
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########## You shouldn't need to edit below. ##########
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##########------------------------------------------------------##########
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## Defined programs / locations
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CC = avr-gcc
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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AVRSIZE = avr-size
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AVRDUDE = sudo avrdude
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## Compilation options, type man avr-gcc if you're curious.
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CFLAGS = -std=gnu99 -mmcu=$(MCU) -DF_CPU=$(F_CPU)UL -Os -I. -I$(EXTRA_SOURCE_DIR)
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CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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CFLAGS += -Wall -Wno-main
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CFLAGS += -g2 -ggdb
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CFLAGS += -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--relax
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CFLAGS += -std=gnu99
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# CFLAGS += -lm
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## CFLAGS += -Wl,-u,vfprintf -lprintf_flt -lm ## for floating-point printf
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## CFLAGS += -Wl,-u,vfprintf -lprintf_min ## for smaller printf
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## Lump target and extra source files together
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TARGET = $(strip $(basename $(MAIN)))
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SRC = $(TARGET).c
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EXTRA_SOURCE = $(addprefix $(EXTRA_SOURCE_DIR), $(EXTRA_SOURCE_FILES))
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SRC += $(EXTRA_SOURCE)
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SRC += $(LOCAL_SOURCE)
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## List of all header files
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HEADERS = $(SRC:.c=.h)
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## For every .c file, compile an .o object file
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OBJ = $(SRC:.c=.o)
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## Generic Makefile targets. (Only .hex file is necessary)
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all: $(TARGET).hex size |
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%.hex: %.elf |
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$(OBJCOPY) -R .eeprom -O ihex $< $@
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%.elf: $(SRC) |
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$(CC) $(CFLAGS) $(SRC) --output $@
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%.eeprom: %.elf |
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$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
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debug: |
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@echo
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@echo "Source files:" $(SRC)
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@echo "MCU, F_CPU, BAUD:" $(MCU), $(F_CPU), $(BAUD)
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@echo
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# Optionally create listing file from .elf
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# This creates approximate assembly-language equivalent of your code.
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# Useful for debugging time-sensitive bits,
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# or making sure the compiler does what you want.
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disassemble: $(TARGET).lst |
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dis: disassemble |
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eeprom: $(TARGET).eeprom |
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%.lst: %.elf |
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$(OBJDUMP) -S $< > $@
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# Optionally show how big the resulting program is
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size: $(TARGET).elf |
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$(AVRSIZE) -C --mcu=$(MCU) $(TARGET).elf
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clean: |
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rm -f $(TARGET).elf $(TARGET).hex $(TARGET).obj \
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$(TARGET).o $(TARGET).d $(TARGET).eep $(TARGET).lst \
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$(TARGET).lss $(TARGET).sym $(TARGET).map $(TARGET)~ \
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$(TARGET).eeprom
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squeaky_clean: |
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rm -f *.elf *.hex *.obj *.o *.d *.eep *.lst *.lss *.sym *.map *~
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##########------------------------------------------------------##########
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########## Programmer-specific details ##########
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########## Flashing code to AVR using avrdude ##########
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##########------------------------------------------------------##########
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flash: $(TARGET).hex |
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U flash:w:$<
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flash_eeprom: $(TARGET).eeprom |
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -U eeprom:w:$<
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terminal: |
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nt
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flash_dragon_isp: PROGRAMMER_TYPE = dragon_isp |
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flash_dragon_isp: PROGRAMMER_ARGS = |
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flash_dragon_isp: flash |
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##########------------------------------------------------------##########
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########## Fuse settings and suitable defaults ##########
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##########------------------------------------------------------##########
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## Generic
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FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m
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fuses: |
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) \
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$(PROGRAMMER_ARGS) $(FUSE_STRING)
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show_fuses: |
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$(AVRDUDE) -c $(PROGRAMMER_TYPE) -p $(MCU) $(PROGRAMMER_ARGS) -nv
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## Called with no extra definitions, sets to defaults
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set_default_fuses: FUSE_STRING = -U lfuse:w:$(LFUSE):m -U hfuse:w:$(HFUSE):m |
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set_default_fuses: fuses |
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@ -0,0 +1,116 @@ |
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#include <avr/io.h> |
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#include <avr/pgmspace.h> |
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#include <avr/eeprom.h> |
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#include <util/delay.h> |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include "utils.h" |
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/**
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* +--u--+ |
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* RST --| |-- Vcc |
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* SAVE LED : PB3 --| t13 |-- PB2 : BTN: HIGH |
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* N.C. : PB4 --| |-- PB1 : BTN: LOW |
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* GND --| |-- PB0 : LED |
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* +-----+ |
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*/ |
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// pins config
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#define PIN_LED PB0 |
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#define PIN_LOW PB1 |
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#define PIN_HIGH PB2 |
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#define PIN_INDICATOR PB3 |
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#define btn_low() (0 == get_bit(PINB, PIN_LOW)) |
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#define btn_high() (0 == get_bit(PINB, PIN_HIGH)) |
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/** Initialize IO ports. */ |
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void SECTION(".init8") init_io(void) |
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{ |
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// set pin directions
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DDRB = _BV(PIN_LED) | _BV(PIN_INDICATOR); |
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// pullups
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PORTB = _BV(PIN_LOW) | _BV(PIN_HIGH); |
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// initialize the timer
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// Fast PWM mode, Output to OC0A
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OCR0A = 32; |
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TCCR0A = _BV(WGM00) | _BV(WGM01) | _BV(COM0A1); |
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TCCR0B = _BV(CS00); |
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} |
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#define BRIGHTNESS_LEN 121 |
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const uint8_t BRIGHTNESS[] PROGMEM = { |
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0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, |
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6, 6, 6, 7, 7, 8, 8, 8, 9, 10, 10, 10, 11, 12, 13, 14, 14, |
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15, 16, 17, 18, 20, 21, 22, 24, 26, 27, 28, 30, 31, 32, 34, |
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35, 36, 38, 39, 40, 41, 42, 44, 45, 46, 48, 49, 50, 52, 54, |
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56, 58, 59, 61, 63, 65, 67, 69, 71, 72, 74, 76, 78, 80, 82, |
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85, 88, 90, 92, 95, 98, 100, 103, 106, 109, 112, 116, 119, |
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122, 125, 129, 134, 138, 142, 147, 151, 156, 160, 165, 170, |
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175, 180, 185, 190, 195, 200, 207, 214, 221, 228, 234, 241, |
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248, 255 |
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}; |
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#define apply_brightness(level) OCR0A = pgm_read_byte( & BRIGHTNESS[level] ) |
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/**
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* Main function |
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*/ |
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void main() |
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{ |
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bool changed = 0; |
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bool changed_since_last_save = 0; |
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uint8_t savetimer = 0; |
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uint8_t level = eeprom_read_byte((uint8_t *) 0); |
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if (level >= BRIGHTNESS_LEN) |
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level = BRIGHTNESS_LEN - 1; |
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else if (level == 0) |
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level = BRIGHTNESS_LEN / 2; |
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apply_brightness(level); |
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while (1) { |
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if (btn_high() && level < BRIGHTNESS_LEN - 1) { |
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level++; |
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changed = 1; |
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} |
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if (btn_low() && level > 1) { |
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level--; |
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changed = 1; |
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} |
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if (changed) { |
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changed = 0; |
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savetimer = 0; |
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changed_since_last_save = 1; |
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apply_brightness(level); |
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} |
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_delay_ms(20); |
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savetimer++; |
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if (savetimer >= 50 && changed_since_last_save) { |
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changed_since_last_save = 0; |
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savetimer = 0; |
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sbi(PORTB, PIN_INDICATOR); |
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eeprom_update_byte((uint8_t*) 0, level); |
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_delay_ms(10); |
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cbi(PORTB, PIN_INDICATOR); |
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} |
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} |
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} |
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@ -0,0 +1,14 @@ |
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#pragma once |
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// general macros
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#define SECTION(pos) __attribute__((naked, used, section(pos))) |
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// pin manipulation
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#define sbi(port, bit) (port) |= _BV(bit) |
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#define cbi(port, bit) (port) &= ~ _BV(bit) |
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#define set_bit(port, bit, value) (port) = (((port) & ~_BV(bit)) | ((value) << (bit))) |
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#define get_bit(port, bit) (((port) >> (bit)) & 1) |
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#define bus_pulse(port, bit) { sbi(port, bit); cbi(port, bit); } |
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Reference in new issue