use button to toggle output
This commit is contained in:
parent
4e1d77b4b1
commit
e3803c678d
83
Makefile
83
Makefile
@ -1,62 +1,53 @@
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TARGET = rc5switch
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TARGET_MCU = attiny24
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CC := avr-gcc
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LD := avr-ld
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OBJCOPY := avr-objcopy
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OBJDUMP := avr-objdump
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SIZE := avr-size
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# ---------------------------------------------------------
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TARGET = rc5switch
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SOURCE = $(wildcard *.c)
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BUILD_DIR = build
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BUILD = build
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AVRDUDE_PROG := -c avr910 -b 115200 -P /dev/ispprog
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#AVRDUDE_PROG := -c dragon_isp -P usb
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CC = avr-gcc
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NM = avr-nm
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SIZE = avr-size
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OBJCOPY = avr-objcopy
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OBJDUMP = avr-objdump
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MCU = attiny24
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AVRDUDE_MCU=t24
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# no self programming, 2.7V BOD, 8MHz internal RC Osz.
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AVRDUDE_FUSES=lfuse:w:0xc2:m hfuse:w:0xdd:m efuse:w:0xff:m
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override CFLAGS = -g -Wall -Os -mmcu=$(TARGET_MCU) -Wa,-gstabs,-adhlns=$(BUILD)/$(*D)/$(*F).lst -MMD -MP -MF $(BUILD)/$(*D)/$(*F).d -pipe
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override LDFLAGS = -Wl,-Map=$(BUILD)/$(TARGET).map,--cref
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# ---------------------------------------------------------------------------
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# ---------------------------------------------------------
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CFLAGS = -pipe -g -Os -mmcu=$(MCU) -Wall -fdata-sections -ffunction-sections
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CFLAGS += -Wa,-adhlns=$(BUILD_DIR)/$(*D)/$(*F).lst -MMD -MP -MF $(BUILD_DIR)/$(*D)/$(*F).d
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LDFLAGS = -Wl,-Map,$(@:.elf=.map),--cref,--relax,--gc-sections
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SRC := $(wildcard *.c)
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# ---------------------------------------------------------------------------
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all: $(addprefix $(BUILD)/$(TARGET), .elf .lss .sym .bin .hex _eeprom.bin _eeprom.hex)
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# @$(SIZE) -x -C --mcu=$(TARGET_MCU) $<
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$(TARGET): $(BUILD_DIR)/$(TARGET).elf
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@$(SIZE) -B -x --mcu=$(MCU) $<
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%.lss: %.elf
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@$(OBJDUMP) -h -S -C $< > $@
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%.sym: %.elf
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@$(NM) -n $< > $@
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%.bin: %.elf
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@$(OBJCOPY) -j .text -j .data -O binary $< $@
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%.hex: %.elf
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@$(OBJCOPY) -j .text -j .data -O ihex $< $@
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%_eeprom.bin: %.elf
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@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $< $@ 2> /dev/null
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%_eeprom.hex: %.elf
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@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@ 2> /dev/null
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$(BUILD)/$(TARGET).elf: $(patsubst %,$(BUILD)/%,$(SRC:.c=.o))
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$(BUILD_DIR)/$(TARGET).elf: $(patsubst %,$(BUILD_DIR)/%,$(SOURCE:.c=.o))
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@echo " Linking file: $@"
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@$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS) > /dev/null
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@$(SIZE) -x -B $^ $@
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@$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
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@$(OBJDUMP) -h -S $@ > $(@:.elf=.lss)
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@$(OBJCOPY) -j .text -j .data -O ihex $@ $(@:.elf=.hex)
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@$(OBJCOPY) -j .text -j .data -O binary $@ $(@:.elf=.bin)
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@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $@ $(@:.elf=_eeprom.hex)
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@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $@ $(@:.elf=_eeprom.bin)
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$(BUILD)/%.o: %.c $(MAKEFILE_LIST)
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$(BUILD_DIR)/%.o: %.c $(MAKEFILE_LIST)
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@echo " Building file: $<"
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@$(shell mkdir -p $(BUILD)/$(*D))
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@$(CC) -c $(CFLAGS) $< -o $@
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@$(shell test -d $(BUILD_DIR)/$(*D) || mkdir -p $(BUILD_DIR)/$(*D))
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@$(CC) $(CFLAGS) -o $@ -c $<
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include $(shell find $(BUILD_DIR) -name \*.d 2> /dev/null)
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clean:
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rm -rf $(BUILD)
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rm -rf $(BUILD_DIR)
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install: $(BUILD)/$(TARGET).hex $(BUILD)/$(TARGET)_eeprom.hex
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avrdude -c dragon_isp -P usb -p t24 -U flash:w:$(BUILD)/$(TARGET).hex -U eeprom:w:$(BUILD)/$(TARGET)_eeprom.hex
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install: $(BUILD_DIR)/$(TARGET).elf
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avrdude $(AVRDUDE_PROG) -p $(AVRDUDE_MCU) -U flash:w:$(<:.elf=.hex) -U eeprom:w:$(<:.elf=_eeprom.hex)
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# no self programming, 2.7V BOD, 8MHz internal RC Osz.
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fuses:
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avrdude -c dragon_isp -P usb -p t24 -U lfuse:w:0xc2:m -U hfuse:w:0xdd:m -U efuse:w:0xff:m
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-include $(shell find $(BUILD) -name *.d 2> /dev/null)
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avrdude $(AVRDUDE_PROG) -p $(AVRDUDE_MCU) $(patsubst %,-U %, $(AVRDUDE_FUSES))
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69
main.c
69
main.c
@ -41,7 +41,6 @@
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#define RC5_CMD_MASK 0x37FF
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#define RC5_COMPLETE 0x8000
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#define PROGMODE_CHECK() (!(PINB & (1<<PINB1)))
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#define OUTPUT_ON() { PORTB &= ~(1<<PORTB0); }
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#define OUTPUT_OFF() { PORTB |= (1<<PORTB0); }
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@ -58,6 +57,38 @@ struct ee_param params_in_eeprom EEMEM = {
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static uint8_t bitcnt;
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static volatile uint16_t value;
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static volatile uint8_t button_debounce;
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static volatile uint8_t button;
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ISR(PCINT1_vect)
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{
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/* get button state */
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button = !(PINB & (1<<PINB1));
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/* 20 * 2ms = 40ms */
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button_debounce = 20;
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/* clear and enable overflow interrupt */
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TIFR0 = (1<<TOV0);
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TIMSK0 |= (1<<TOIE0);
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/* disable Pinchange interrupt */
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GIMSK &= ~(1<<PCIE1);
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}
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ISR(TIM0_OVF_vect)
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{
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button_debounce--;
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if (button_debounce == 0x00)
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{
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/* disable overflow interrupt */
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TIMSK0 &= ~(1<<TOIE0);
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/* clear & enable Pinchange interrupt */
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GIFR = (1<<PCIF1);
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GIMSK |= (1<<PCIE1);
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}
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}
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ISR(EXT_INT0_vect)
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{
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@ -109,8 +140,10 @@ int main(int argc, char *argv[])
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PORTB = (1<<PORTB2) | (1<<PORTB1) | (1<<PORTB0);
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/* INT0: both edges generate interrupt */
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/* PB1: enable pin change interrupt */
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MCUCR = (1<<ISC00);
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GIMSK = (1<<INT0);
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GIMSK = (1<<INT0) | (1<<PCIE1);
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PCMSK1 = (1<<PCINT9);
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/* Timer0: 8Mhz/64 */
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TCCR0B = (1<<CS01) | (1<<CS00);
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@ -128,6 +161,7 @@ int main(int argc, char *argv[])
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sei();
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uint16_t old_value = 0x0000;
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uint8_t toggle = 0x00;
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while (1) {
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/* wait for next interrupt */
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@ -135,26 +169,37 @@ int main(int argc, char *argv[])
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if (value & RC5_COMPLETE) {
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/* PROGMODE jumper set? */
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if (PROGMODE_CHECK()) {
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if (!(PINB & (1<<PINB1))) {
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params.rc5cmd = (value & RC5_CMD_MASK);
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eeprom_write_block(¶ms, ¶ms_in_eeprom, sizeof(struct ee_param));
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/* current command matches stored one */
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} else if (params.rc5cmd == (value & RC5_CMD_MASK) && value != old_value) {
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if (params.state) {
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params.state = 0;
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OUTPUT_OFF();
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} else {
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params.state = 1;
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OUTPUT_ON();
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}
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eeprom_write_block(¶ms, ¶ms_in_eeprom, sizeof(struct ee_param));
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toggle = 1;
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old_value = value;
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}
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value = 0x0000;
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}
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else if (button)
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{
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toggle = 1;
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button = 0;
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}
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if (toggle)
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{
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if (params.state) {
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params.state = 0;
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OUTPUT_OFF();
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} else {
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params.state = 1;
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OUTPUT_ON();
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}
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eeprom_write_block(¶ms, ¶ms_in_eeprom, sizeof(struct ee_param));
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toggle = 0;
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}
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}
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return 0;
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