add avr firmware code
This commit is contained in:
parent
1b50259948
commit
99347586bd
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@ -18,3 +18,9 @@ decode.rb
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decode the MilesTag v2 recorded transmission
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avr
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===
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firmware for the IR grenade.
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based on the TV-B-Gone firmware
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@ -0,0 +1,80 @@
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# required packages
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# sudo aptitude install avrdude gcc-avr avr-libc
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# the program
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PROG=ir-cock-grenade
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# to compile
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CC=avr-gcc
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OBJDUMP=avr-objdump
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OBJCOPY=avr-objcopy
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CFLAGS=-g -Wall -O3
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# the target
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#DEVICE=atmega328p
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DEVICE=attiny85
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F_CPU=1000000
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# the port to flash
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#PORT=/dev/ttyUSB0
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# the flasher
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#PROGRAMMER=buspirate
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PROGRAMMER=usbtiny
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# to flash
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#AVRDUDE=avrdude -p $(DEVICE) -P $(PORT) -c $(PROGRAMMER)
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AVRDUDE=avrdude -p $(DEVICE) -c $(PROGRAMMER) -B 50
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all: prog
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prog: verify $(PROG).c
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$(CC) $(CFLAGS) -I. -mmcu=$(DEVICE) -DF_CPU=$(F_CPU) -o $(PROG) $(PROG).c
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$(OBJDUMP) -h -S $(PROG) > $(PROG).lst
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$(OBJCOPY) -j .text -j .data -O ihex $(PROG) $(PROG).hex
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# Fuse extended byte:
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# 0x07 = - - - - - 1 1 1
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# \-+-/
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# +------ BODLEVEL 2..0 (Brown-out Detector trigger level -> disabled)
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#
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# Fuse high byte:
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# 0xdf = 1 1 0 1 1 1 1 1
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# ^ ^ ^ ^ ^ \+/ ^
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# | | | | | | +---- BOOTRST (Select Reset Vector -> jump to application at start)
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# | | | | | +------- BOOTSZ 1..0 (Select Boot Size -> 256 words starting at 0x3F00)
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# | | | | +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)
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# | | | +-------------- WDTON (watchdog timer always on -> disable)
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# | | +---------------- SPIEN (enable serial programming -> enabled)
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# | +------------------ DWEN (debug wire enable -> enabled)
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# +-------------------- RSTDISBL (disable external reset -> reset disabled)
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#
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# Fuse low byte:
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# 0x62 = 0 1 1 0 0 0 1 0
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# ^ ^ \+/ \--+--/
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# | | | +------- CKSEL 3..0 (clock selection -> Internal RC oscillator)
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# | | +--------------- SUT 1..0 (BOD enabled, fast rising power)
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# | +------------------ CKOUT (clock output on CKOUT pin -> disabled)
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# +-------------------- CKDIV8 (divide clock by 8 -> divide)
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burn-fuse:
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$(AVRDUDE) -U efuse:w:0x07:m -U hfuse:w:0xdf:m -U lfuse:w:0x62:m
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read-fuse:
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$(AVRDUDE) -U efuse:r:efuse.raw:r -U hfuse:r:hfuse.raw:r -U lfuse:r:lfuse.raw:r
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flash:
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$(AVRDUDE) -U flash:w:$(PROG).hex:i
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read-flash:
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$(AVRDUDE) -U flash:r:flash_dump.hex:i
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flash: prog load
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install : prog load
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load:
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$(AVRDUDE) -U flash:w:$(PROG).hex:i
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clean:
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rm -f $(PROG) *.hex *.lst
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verify:
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$(AVRDUDE)
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if [ $$? -eq 0 ]; then \
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echo "avrdude configured correctly"; \
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else \
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echo "avrdude not configured correctly in Makefile"; \
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exit 1; \
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fi
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@ -0,0 +1,9 @@
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packages needed:
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sudo apt-get install gcc-avr avr-libc avrdude
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I used the sparkfune AVR Pocket programmer, a USBtinyISP clone (http://ladyada.net/make/usbtinyisp/)
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it uses libusb, not a serial port
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to be able to use it a non-root part of the dialout group (on ubuntu distributions)
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echo 'SUBSYSTEM=="usb", ATTRS{idVendor}=="1781", ATTR{idProduct}=="0c9f", MODE="0660", GROUP="dialout"' | sudo tee /etc/udev/rules.d/99-avr.rules
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sudo service udev reload
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@ -0,0 +1,371 @@
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# MCU name
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MCU = attiny85
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F_CPU = 8000000
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# Output format. (can be srec, ihex, binary)
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FORMAT = ihex
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# Target file name (without extension).
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TARGET = tvbgone
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#NA_CODE = 1
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# Optimization level, can be [0, 1, 2, 3, s]. 0 turns off optimization.
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# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
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OPT = s
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# List C source files here. (C dependencies are automatically generated.)
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SRC = main.c util.c
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# List Assembler source files here.
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# Make them always end in a capital .S. Files ending in a lowercase .s
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# will not be considered source files but generated files (assembler
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# output from the compiler), and will be deleted upon "make clean"!
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# Even though the DOS/Win filesystem matches both .s and .S the same,
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# it will preserve the spelling of the filenames, and gcc itself does
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# care about how the name is spelled on its command-line.
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# Optional compiler flags.
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# -g: generate debugging information (for GDB, or for COFF conversion)
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# -O*: optimization level
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# -f...: tuning, see gcc manual and avr-libc documentation
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# -Wall...: warning level
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# -Wa,...: tell GCC to pass this to the assembler.
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# -ahlms: create assembler listing
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CFLAGS = -g -O$(OPT) \
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-funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \
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-Wall -Wstrict-prototypes \
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-DF_CPU=$(F_CPU) \
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-Wa,-adhlns=$(<:.c=.lst) \
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$(patsubst %,-I%,$(EXTRAINCDIRS))
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# Set a "language standard" compiler flag.
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# Unremark just one line below to set the language standard to use.
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# gnu99 = C99 + GNU extensions. See GCC manual for more information.
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#CFLAGS += -std=c89
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#CFLAGS += -std=gnu89
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#CFLAGS += -std=c99
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CFLAGS += -std=gnu99
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ifdef EU_CODE
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CFLAGS += -DEU_CODES
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else ifdef NA_CODE
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CFLAGS += -DNA_CODES
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else
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CFLAGS += -DEU_CODES -DNA_CODES
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endif
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# Optional assembler flags.
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# -Wa,...: tell GCC to pass this to the assembler.
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# -ahlms: create listing
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# -gstabs: have the assembler create line number information; note that
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# for use in COFF files, additional information about filenames
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# and function names needs to be present in the assembler source
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# files -- see avr-libc docs [FIXME: not yet described there]
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ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
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# Optional linker flags.
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# -Wl,...: tell GCC to pass this to linker.
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# -Map: create map file
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# --cref: add cross reference to map file
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LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
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# Additional libraries
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# Minimalistic printf version
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#LDFLAGS += -Wl,-u,vfprintf -lprintf_min
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# Floating point printf version (requires -lm below)
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#LDFLAGS += -Wl,-u,vfprintf -lprintf_flt
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# -lm = math library
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LDFLAGS += -lm
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# Programming support using avrdude. Settings and variables.
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# Programming hardware: alf avr910 avrisp bascom bsd
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# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
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#
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# Type: avrdude -c ?
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# to get a full listing.
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#
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#
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AVRDUDE_PROGRAMMER = usbtiny
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#AVRDUDE_PROGRAMMER = stk500v2
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#AVRDUDE_PORT = com3 # programmer connected to serial device
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AVRDUDE_WRITE_FLASH = -B 5 -U flash:w:$(TARGET).hex
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#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
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AVRDUDE_FLAGS = -p $(MCU) -c $(AVRDUDE_PROGRAMMER)
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#AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
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# Uncomment the following if you want avrdude's erase cycle counter.
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# Note that this counter needs to be initialized first using -Yn,
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# see avrdude manual.
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#AVRDUDE_ERASE += -y
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# Uncomment the following if you do /not/ wish a verification to be
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# performed after programming the device.
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#AVRDUDE_FLAGS += -V
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# Increase verbosity level. Please use this when submitting bug
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# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
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# to submit bug reports.
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#AVRDUDE_FLAGS += -v -v
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# ---------------------------------------------------------------------------
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# Define directories, if needed.
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DIRAVR = c:/winavr
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DIRAVRBIN = $(DIRAVR)/bin
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DIRAVRUTILS = $(DIRAVR)/utils/bin
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DIRINC = .
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DIRLIB = $(DIRAVR)/avr/lib
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# Define programs and commands.
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SHELL = sh
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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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SIZE = avr-size
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# Programming support using avrdude.
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AVRDUDE = avrdude
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REMOVE = rm -f
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COPY = cp
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HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
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ELFSIZE = $(SIZE) -A $(TARGET).elf
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# Define Messages
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# English
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MSG_ERRORS_NONE = Errors: none
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MSG_BEGIN = -------- begin --------
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MSG_END = -------- end --------
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MSG_SIZE_BEFORE = Size before:
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MSG_SIZE_AFTER = Size after:
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MSG_COFF = Converting to AVR COFF:
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MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
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MSG_FLASH = Creating load file for Flash:
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MSG_EEPROM = Creating load file for EEPROM:
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MSG_EXTENDED_LISTING = Creating Extended Listing:
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MSG_SYMBOL_TABLE = Creating Symbol Table:
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MSG_LINKING = Linking:
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MSG_COMPILING = Compiling:
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MSG_ASSEMBLING = Assembling:
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MSG_CLEANING = Cleaning project:
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# Define all object files.
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OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
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# Define all listing files.
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LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
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# Combine all necessary flags and optional flags.
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# Add target processor to flags.
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ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
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ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
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# Default target.
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all: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \
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$(TARGET).lss $(TARGET).sym sizeafter finished end
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# Eye candy.
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# AVR Studio 3.x does not check make's exit code but relies on
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# the following magic strings to be generated by the compile job.
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begin:
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@echo
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@echo $(MSG_BEGIN)
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finished:
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@echo $(MSG_ERRORS_NONE)
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end:
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@echo $(MSG_END)
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@echo
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# Display size of file.
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sizebefore:
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@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
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sizeafter:
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@if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
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# Display compiler version information.
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gccversion :
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@$(CC) --version
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# Convert ELF to COFF for use in debugging / simulating in
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# AVR Studio or VMLAB.
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COFFCONVERT=$(OBJCOPY) --debugging \
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--change-section-address .data-0x800000 \
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--change-section-address .bss-0x800000 \
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--change-section-address .noinit-0x800000 \
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--change-section-address .eeprom-0x810000
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coff: $(TARGET).elf
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@echo
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@echo $(MSG_COFF) $(TARGET).cof
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$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
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extcoff: $(TARGET).elf
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@echo
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@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
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$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
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reset:
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$(AVRDUDE) $(AVRDUDE_FLAGS)
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# Program the device.
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program: $(TARGET).hex $(TARGET).eep
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$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
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full: $(TARGET).hex
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make burn-fuse
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make program
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burn-fuse:
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$(AVRDUDE) $(AVRDUDE_FLAGS) -B 250 -u -U lfuse:w:0xfd:m -U hfuse:w:0xdf:m
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read-fuse:
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$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U lfuse:r:l.txt:r
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$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U hfuse:r:h.txt:r
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$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U efuse:r:e.txt:r
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# Create final output files (.hex, .eep) from ELF output file.
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%.hex: %.elf
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@echo
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@echo $(MSG_FLASH) $@
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$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
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%.eep: %.elf
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@echo
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@echo $(MSG_EEPROM) $@
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-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
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--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
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# Create extended listing file from ELF output file.
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%.lss: %.elf
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@echo
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@echo $(MSG_EXTENDED_LISTING) $@
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$(OBJDUMP) -h -S $< > $@
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# Create a symbol table from ELF output file.
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%.sym: %.elf
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@echo
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@echo $(MSG_SYMBOL_TABLE) $@
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avr-nm -n $< > $@
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# Link: create ELF output file from object files.
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.SECONDARY : $(TARGET).elf
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.PRECIOUS : $(OBJ)
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%.elf: $(OBJ)
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@echo
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@echo $(MSG_LINKING) $@
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$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
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# Compile: create object files from C source files.
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%.o : %.c
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@echo
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@echo $(MSG_COMPILING) $<
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$(CC) -c $(ALL_CFLAGS) $< -o $@
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# Compile: create assembler files from C source files.
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%.s : %.c
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$(CC) -S $(ALL_CFLAGS) $< -o $@
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# Assemble: create object files from assembler source files.
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%.o : %.S
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@echo
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@echo $(MSG_ASSEMBLING) $<
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$(CC) -c $(ALL_ASFLAGS) $< -o $@
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# Target: clean project.
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clean: begin clean_list finished end
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clean_list :
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@echo
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@echo $(MSG_CLEANING)
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$(REMOVE) $(TARGET).hex
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$(REMOVE) $(TARGET).eep
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$(REMOVE) $(TARGET).obj
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$(REMOVE) $(TARGET).cof
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$(REMOVE) $(TARGET).elf
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$(REMOVE) $(TARGET).map
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$(REMOVE) $(TARGET).obj
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$(REMOVE) $(TARGET).a90
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$(REMOVE) $(TARGET).sym
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$(REMOVE) $(TARGET).lnk
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$(REMOVE) $(TARGET).lss
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$(REMOVE) $(OBJ)
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$(REMOVE) $(LST)
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$(REMOVE) $(SRC:.c=.s)
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$(REMOVE) $(SRC:.c=.d)
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# Automatically generate C source code dependencies.
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# (Code originally taken from the GNU make user manual and modified
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# (See README.txt Credits).)
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#
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# Note that this will work with sh (bash) and sed that is shipped with WinAVR
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# (see the SHELL variable defined above).
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# This may not work with other shells or other seds.
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#
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%.d: %.c
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set -e; $(CC) -MM $(ALL_CFLAGS) $< \
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| sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \
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[ -s $@ ] || rm -f $@
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# Remove the '-' if you want to see the dependency files generated.
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-include $(SRC:.c=.d)
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# Listing of phony targets.
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.PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff \
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clean clean_list program
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@ -0,0 +1,290 @@
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/*
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TV-B-Gone Firmware version 1.2
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for use with ATtiny85v and v1.2 hardware
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(c) Mitch Altman + Limor Fried 2009
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Last edits, August 16 2009
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With some code from:
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Kevin Timmerman & Damien Good 7-Dec-07
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Distributed under Creative Commons 2.5 -- Attib & Share Alike
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|
||||
This is the 'universal' code designed for v1.2 - it will select EU or NA
|
||||
depending on a pulldown resistor on pin B1 !
|
||||
*/
|
||||
|
||||
#include <avr/io.h> // this contains all the IO port definitions
|
||||
#include <avr/eeprom.h>
|
||||
#include <avr/sleep.h> // definitions for power-down modes
|
||||
#include <avr/pgmspace.h> // definitions or keeping constants in program memory
|
||||
#include <avr/wdt.h>
|
||||
#include "main.h"
|
||||
#include "util.h"
|
||||
|
||||
|
||||
/*
|
||||
This project transmits a bunch of TV POWER codes, one right after the other,
|
||||
with a pause in between each. (To have a visible indication that it is
|
||||
transmitting, it also pulses a visible LED once each time a POWER code is
|
||||
transmitted.) That is all TV-B-Gone does. The tricky part of TV-B-Gone
|
||||
was collecting all of the POWER codes, and getting rid of the duplicates and
|
||||
near-duplicates (because if there is a duplicate, then one POWER code will
|
||||
turn a TV off, and the duplicate will turn it on again (which we certainly
|
||||
do not want). I have compiled the most popular codes with the
|
||||
duplicates eliminated, both for North America (which is the same as Asia, as
|
||||
far as POWER codes are concerned -- even though much of Asia USES PAL video)
|
||||
and for Europe (which works for Australia, New Zealand, the Middle East, and
|
||||
other parts of the world that use PAL video).
|
||||
|
||||
Before creating a TV-B-Gone Kit, I originally started this project by hacking
|
||||
the MiniPOV kit. This presents a limitation, based on the size of
|
||||
the Atmel ATtiny2313 internal flash memory, which is 2KB. With 2KB we can only
|
||||
fit about 7 POWER codes into the firmware's database of POWER codes. However,
|
||||
the more codes the better! Which is why we chose the ATtiny85 for the
|
||||
TV-B-Gone Kit.
|
||||
|
||||
This version of the firmware has the most popular 100+ POWER codes for
|
||||
North America and 100+ POWER codes for Europe. You can select which region
|
||||
to use by soldering a 10K pulldown resistor.
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
This project is a good example of how to use the AVR chip timers.
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
The hardware for this project is very simple:
|
||||
ATtiny85 has 8 pins:
|
||||
pin 1 RST + Button
|
||||
pin 2 one pin of ceramic resonator MUST be 8.0 mhz
|
||||
pin 3 other pin of ceramic resonator
|
||||
pin 4 ground
|
||||
pin 5 OC1A - IR emitters, through a '2907 PNP driver that connects
|
||||
to 4 (or more!) PN2222A drivers, with 1000 ohm base resistor
|
||||
and also connects to programming circuitry
|
||||
pin 6 Region selector. Float for US, 10K pulldown for EU,
|
||||
also connects to programming circuitry
|
||||
pin 7 PB0 - visible LED, and also connects to programming circuitry
|
||||
pin 8 +3-5v DC (such as 2-4 AA batteries!)
|
||||
See the schematic for more details.
|
||||
|
||||
This firmware requires using an 8.0MHz ceramic resonator
|
||||
(since the internal oscillator may not be accurate enough).
|
||||
|
||||
IMPORTANT: to use the ceramic resonator, you must perform the following:
|
||||
make burn-fuse_cr
|
||||
*/
|
||||
|
||||
/* This function is the 'workhorse' of transmitting IR codes.
|
||||
Given the on and off times, it turns on the PWM output on and off
|
||||
to generate one 'pair' from a long code. Each code has ~50 pairs! */
|
||||
void xmitCodeElement(uint16_t ontime, uint16_t offtime, uint8_t PWM_code )
|
||||
{
|
||||
// start Timer0 outputting the carrier frequency to IR emitters on and OC0A
|
||||
// (PB0, pin 5)
|
||||
TCNT0 = 0; // reset the timers so they are aligned
|
||||
TIFR = 0; // clean out the timer flags
|
||||
|
||||
if(PWM_code) {
|
||||
// 99% of codes are PWM codes, they are pulses of a carrier frequecy
|
||||
// Usually the carrier is around 38KHz, and we generate that with PWM
|
||||
// timer 0
|
||||
TCCR0A =_BV(COM0A0) | _BV(WGM01); // set up timer 0
|
||||
TCCR0B = _BV(CS00);
|
||||
} else {
|
||||
// However some codes dont use PWM in which case we just turn the IR
|
||||
// LED on for the period of time.
|
||||
PORTB &= ~_BV(IRLED);
|
||||
}
|
||||
|
||||
// Now we wait, allowing the PWM hardware to pulse out the carrier
|
||||
// frequency for the specified 'on' time
|
||||
delay_ten_us(ontime);
|
||||
|
||||
// Now we have to turn it off so disable the PWM output
|
||||
TCCR0A = 0;
|
||||
TCCR0B = 0;
|
||||
// And make sure that the IR LED is off too (since the PWM may have
|
||||
// been stopped while the LED is on!)
|
||||
PORTB |= _BV(IRLED); // turn off IR LED
|
||||
|
||||
// Now we wait for the specified 'off' time
|
||||
delay_ten_us(offtime);
|
||||
}
|
||||
|
||||
/* transmit IR burst, using the miles tag II format
|
||||
* one IR burst is ticks*600uS on, and 600uS off
|
||||
* n=1 codes 0
|
||||
* n=2 codes 1
|
||||
* n=4 codes header
|
||||
*/
|
||||
void transmit_ir(uint8_t ticks) {
|
||||
xmitCodeElement(ticks*600/10*TIMING_CORRECTION,600/10*TIMING_CORRECTION,1); // added some correction to transmit code
|
||||
}
|
||||
|
||||
void transmit_ir_byte(uint8_t data) {
|
||||
uint8_t tick;
|
||||
int8_t i;
|
||||
//DEBUGP(putstring("byte burst "));
|
||||
for (i=7;i>=0;i--) {
|
||||
tick = ((data>>i)&0x01);
|
||||
//DEBUGP(putnum_ud(tick));
|
||||
transmit_ir(tick+1);
|
||||
}
|
||||
//DEBUGP(putstring("\r\n"));
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
uint8_t i;
|
||||
|
||||
TCCR1 = 0; // Turn off PWM/freq gen, should be off already
|
||||
TCCR0A = 0;
|
||||
TCCR0B = 0;
|
||||
// set OCR for Timer1 to output this POWER code's carrier frequency (lasertag milestag II uses 56kHz)
|
||||
OCR0A = freq_to_timerval(56000);
|
||||
|
||||
i = MCUSR; // Save reset reason
|
||||
MCUSR = 0; // clear watchdog flag
|
||||
WDTCR = _BV(WDCE) | _BV(WDE); // enable WDT disable
|
||||
|
||||
WDTCR = 0; // disable WDT while we setup
|
||||
|
||||
DDRB = _BV(LED) | _BV(IRLED) | _BV(TX); // set the visible and IR LED pins to outputs
|
||||
PORTB = _BV(LED) | // visible LED is off when pin is high
|
||||
_BV(IRLED) | // IR LED is off when pin is high
|
||||
_BV(TX); // Turn on pullup on region switch pin
|
||||
|
||||
DEBUGP(putstring_nl("\r\nHello cock suckers! Ready to swallow some infrared?\r\n"));
|
||||
|
||||
// check the reset flags
|
||||
if (i & _BV(BORF)) { // Brownout
|
||||
// Flash out an error and go to sleep
|
||||
flashslowLEDx(2);
|
||||
tvbgone_sleep();
|
||||
}
|
||||
|
||||
delay_ten_us(5000); // Let everything settle for a bit
|
||||
|
||||
// blink half the time for 4 seconds
|
||||
for (i=0;i<4;i++) {
|
||||
PORTB &= ~_BV(LED); // turn on visible LED at PB0 by pulling pin to ground
|
||||
delay_ten_us(50000);// wait 0.5s
|
||||
PORTB |= _BV(LED); // turn off visible LED at PB0 by pulling pin to +3V
|
||||
delay_ten_us(50000);// wait 0.5s
|
||||
}
|
||||
|
||||
// blink fast for 1 seconds
|
||||
for (i=0;i<5;i++) {
|
||||
PORTB &= ~_BV(LED); // turn on visible LED at PB0 by pulling pin to ground
|
||||
delay_ten_us(10000); // wait 0.1s
|
||||
PORTB |= _BV(LED); // turn off visible LED at PB0 by pulling pin to +3V
|
||||
delay_ten_us(10000); // wait 0.1s
|
||||
}
|
||||
|
||||
// turn on watchdog timer immediately, this protects against
|
||||
// a 'stuck' system by resetting it
|
||||
wdt_enable(WDTO_8S); // 1 second long timeout
|
||||
|
||||
DEBUGP(putstring("fire in the hole\r\n"));
|
||||
transmit_ir(4);
|
||||
transmit_ir_byte(0x83);
|
||||
transmit_ir_byte(0x0b);
|
||||
transmit_ir_byte(0xe8); // end byte not needed
|
||||
|
||||
delay_ten_us(50000); // wait 0.1s
|
||||
// the protprietary recorded version
|
||||
transmit_ir(4);
|
||||
transmit_ir_byte(0x84);
|
||||
transmit_ir_byte(0x00);
|
||||
transmit_ir_byte(0xa4);
|
||||
|
||||
// We are done, no need for a watchdog timer anymore
|
||||
wdt_disable();
|
||||
|
||||
// flash the visible LED on PB0 4 times to indicate that we're done
|
||||
//delay_ten_us(65500); // wait maxtime
|
||||
quickflashLEDx(4);
|
||||
|
||||
tvbgone_sleep();
|
||||
}
|
||||
|
||||
|
||||
/****************************** SLEEP FUNCTIONS ********/
|
||||
|
||||
void tvbgone_sleep( void )
|
||||
{
|
||||
// Shut down everything and put the CPU to sleep
|
||||
TCCR0A = 0; // turn off frequency generator (should be off already)
|
||||
TCCR0B = 0; // turn off frequency generator (should be off already)
|
||||
PORTB |= _BV(LED) | // turn off visible LED
|
||||
_BV(IRLED); // turn off IR LED
|
||||
|
||||
wdt_disable(); // turn off the watchdog (since we want to sleep
|
||||
delay_ten_us(1000); // wait 10 millisec
|
||||
|
||||
MCUCR = _BV(SM1) | _BV(SE); // power down mode, SE enables Sleep Modes
|
||||
sleep_cpu(); // put CPU into Power Down Sleep Mode
|
||||
}
|
||||
|
||||
|
||||
/****************************** LED AND DELAY FUNCTIONS ********/
|
||||
|
||||
|
||||
// This function delays the specified number of 10 microseconds
|
||||
// it is 'hardcoded' and is calibrated by adjusting DELAY_CNT
|
||||
// in main.h Unless you are changing the crystal from 8mhz, dont
|
||||
// mess with this.
|
||||
void delay_ten_us(uint16_t us) {
|
||||
uint8_t timer;
|
||||
while (us != 0) {
|
||||
// for 8MHz we want to delay 80 cycles per 10 microseconds
|
||||
// this code is tweaked to give about that amount.
|
||||
for (timer=0; timer <= DELAY_CNT; timer++) {
|
||||
NOP;
|
||||
NOP;
|
||||
}
|
||||
NOP;
|
||||
us--;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// This function quickly pulses the visible LED (connected to PB0, pin 5)
|
||||
// This will indicate to the user that a code is being transmitted
|
||||
void quickflashLED( void ) {
|
||||
PORTB &= ~_BV(LED); // turn on visible LED at PB0 by pulling pin to ground
|
||||
delay_ten_us(3000); // 30 millisec delay
|
||||
PORTB |= _BV(LED); // turn off visible LED at PB0 by pulling pin to +3V
|
||||
}
|
||||
|
||||
// This function just flashes the visible LED a couple times, used to
|
||||
// tell the user what region is selected
|
||||
void quickflashLEDx( uint8_t x ) {
|
||||
quickflashLED();
|
||||
while(--x) {
|
||||
wdt_reset();
|
||||
delay_ten_us(15000); // 150 millisec delay between flahes
|
||||
quickflashLED();
|
||||
}
|
||||
wdt_reset(); // kick the dog
|
||||
}
|
||||
|
||||
// This is like the above but way slower, used for when the tvbgone
|
||||
// crashes and wants to warn the user
|
||||
void flashslowLEDx( uint8_t num_blinks )
|
||||
{
|
||||
uint8_t i;
|
||||
for(i=0;i<num_blinks;i++)
|
||||
{
|
||||
// turn on visible LED at PB0 by pulling pin to ground
|
||||
PORTB &= ~_BV(LED);
|
||||
delay_ten_us(50000); // 500 millisec delay
|
||||
wdt_reset(); // kick the dog
|
||||
// turn off visible LED at PB0 by pulling pin to +3V
|
||||
PORTB |= _BV(LED);
|
||||
delay_ten_us(50000); // 500 millisec delay
|
||||
wdt_reset(); // kick the dog
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
// What pins do what
|
||||
#define LED PB2
|
||||
#define IRLED PB0
|
||||
#define TX PB1
|
||||
|
||||
// Lets us calculate the size of the NA/EU databases
|
||||
#define NUM_ELEM(x) (sizeof (x) / sizeof (*(x)));
|
||||
|
||||
// set define to 0 to turn off debug output
|
||||
#define DEBUG 1
|
||||
#define DEBUGP(x) if (DEBUG == 1) { x ; }
|
||||
|
||||
|
||||
// Shortcut to insert single, non-optimized-out nop
|
||||
#define NOP __asm__ __volatile__ ("nop")
|
||||
|
||||
// Tweak this if neccessary to change timing
|
||||
#define DELAY_CNT 11
|
||||
#define TIMING_CORRECTION 1.18
|
||||
|
||||
// Makes the codes more readable. the OCRA is actually
|
||||
// programmed in terms of 'periods' not 'freqs' - that
|
||||
// is, the inverse!
|
||||
#define freq_to_timerval(x) ((F_CPU / x - 1)/ 2)
|
||||
|
||||
// The structure of compressed code entries
|
||||
struct IrCode {
|
||||
uint8_t timer_val;
|
||||
uint8_t numpairs;
|
||||
uint8_t bitcompression;
|
||||
uint16_t const *times;
|
||||
uint8_t codes[];
|
||||
};
|
||||
|
||||
void xmitCodeElement(uint16_t ontime, uint16_t offtime, uint8_t PWM_code );
|
||||
void flashslowLEDx( uint8_t num_blinks );
|
||||
void quickflashLEDx( uint8_t x );
|
||||
void tvbgone_sleep( void );
|
||||
void delay_ten_us(uint16_t us);
|
||||
void quickflashLED( void );
|
||||
|
|
@ -0,0 +1,91 @@
|
|||
#include <avr/io.h> // this contains all the IO port definitions
|
||||
#include <avr/interrupt.h> // definitions for interrupts
|
||||
#include "main.h"
|
||||
#include "util.h"
|
||||
|
||||
#define TXPORT PORTB
|
||||
#define TX 1
|
||||
|
||||
#if (DEBUG == 1)
|
||||
|
||||
#define SERIALDELAY 75 // to make 19200 baud
|
||||
void serialdelay(void) {
|
||||
uint16_t timer;
|
||||
for (timer=0; timer <= SERIALDELAY; timer++) {
|
||||
NOP;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void uart_putchar(char d) {
|
||||
int i;
|
||||
cli(); // turn off interrupts, make it nice & kleen
|
||||
|
||||
TXPORT &= ~_BV(TX);
|
||||
serialdelay();
|
||||
for (i=0; i< 8; i++) {
|
||||
if (d & 0x1) {
|
||||
TXPORT |= _BV(TX);
|
||||
} else {
|
||||
TXPORT &= ~_BV(TX);
|
||||
}
|
||||
serialdelay();
|
||||
d >>= 1;
|
||||
}
|
||||
TXPORT |= _BV(TX);
|
||||
sei(); // turn on interrupts
|
||||
serialdelay();
|
||||
}
|
||||
|
||||
void printhex(uint8_t hex) {
|
||||
hex &= 0xF;
|
||||
if (hex < 10)
|
||||
uart_putchar(hex + '0');
|
||||
else
|
||||
uart_putchar(hex + 'A' - 10);
|
||||
}
|
||||
|
||||
void putnum_uh(uint16_t n) {
|
||||
if (n >> 12)
|
||||
printhex(n>>12);
|
||||
if (n >> 8)
|
||||
printhex(n >> 8);
|
||||
if (n >> 4)
|
||||
printhex(n >> 4);
|
||||
printhex(n);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
void putnum_ud(uint16_t n) {
|
||||
uint8_t cnt=0, flag=0;
|
||||
|
||||
while (n >= 10000UL) { flag = 1; cnt++; n -= 10000UL; }
|
||||
if (flag) uart_putchar('0'+cnt);
|
||||
cnt = 0;
|
||||
while (n >= 1000UL) { flag = 1; cnt++; n -= 1000UL; }
|
||||
if (flag) uart_putchar('0'+cnt);
|
||||
cnt = 0;
|
||||
while (n >= 100UL) { flag = 1; cnt++; n -= 100UL; }
|
||||
if (flag) uart_putchar('0'+cnt);
|
||||
cnt = 0;
|
||||
while (n >= 10UL) { flag = 1; cnt++; n -= 10UL; }
|
||||
if (flag) uart_putchar('0'+cnt);
|
||||
cnt = 0;
|
||||
uart_putchar('0'+n);
|
||||
return;
|
||||
}
|
||||
|
||||
void ROM_putstring(const char *str, uint8_t nl) {
|
||||
uint8_t i;
|
||||
|
||||
for (i=0; pgm_read_byte(&str[i]); i++) {
|
||||
uart_putchar(pgm_read_byte(&str[i]));
|
||||
}
|
||||
if (nl) {
|
||||
uart_putchar('\n'); uart_putchar('\r');
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
#include <avr/pgmspace.h>
|
||||
|
||||
uint8_t internal_eeprom_read(uint16_t addr);
|
||||
void internal_eeprom_write(uint16_t addr, uint8_t data);
|
||||
void delay_ms(uint16_t ms);
|
||||
void uart_init(uint16_t baud);
|
||||
void uart_putchar(char c);
|
||||
char uart_getchar(void);
|
||||
char uart_getch(void);
|
||||
void putnum_ud(uint16_t n);
|
||||
void putnum_uh(uint16_t n);
|
||||
void printhex(uint8_t hex);
|
||||
void ROM_putstring(const char *str, uint8_t);
|
||||
uint16_t uart_read16(void);
|
||||
void print_div(void);
|
||||
|
||||
#define putstring(x) ROM_putstring(PSTR(x), 0)
|
||||
#define putstring_nl(x) ROM_putstring(PSTR(x), 1)
|
||||
|
||||
#define NOP __asm__ __volatile__ ("nop")
|
||||
|
||||
Loading…
Reference in New Issue