From 54de37bf983c9e4c3199fb4782fe4b972c98a227 Mon Sep 17 00:00:00 2001 From: Philipp Hachtmann Date: Fri, 27 Jan 2017 06:14:13 +0100 Subject: [PATCH] trennfix/sw: Something is working already First somehow working firmware for trennfix 0.4 and attiny25 It does not have release quality but I keep this revision for completeness. Signed-off-by: Philipp Hachtmann --- trennfix/sw/Makefile | 500 +++++++++++++++++++++++++++++ trennfix/sw/config.make | 24 ++ trennfix/sw/gpl.txt | 674 ++++++++++++++++++++++++++++++++++++++++ trennfix/sw/main.c | 317 +++++++++++++++++++ trennfix/sw/pin_magic.h | 23 ++ 5 files changed, 1538 insertions(+) create mode 100644 trennfix/sw/Makefile create mode 100644 trennfix/sw/config.make create mode 100644 trennfix/sw/gpl.txt create mode 100644 trennfix/sw/main.c create mode 100644 trennfix/sw/pin_magic.h diff --git a/trennfix/sw/Makefile b/trennfix/sw/Makefile new file mode 100644 index 0000000..66135de --- /dev/null +++ b/trennfix/sw/Makefile @@ -0,0 +1,500 @@ +#---------------------------------------------------------------------------- +# +# Makefile based on the public domain Makefile by Peter Fleury +# +#---------------------------------------------------------------------------- +# On command line: +# +# make all = Make software. +# +# make clean = Clean out built project files. +# +# make coff = Convert ELF to AVR COFF. +# +# make extcoff = Convert ELF to AVR Extended COFF. +# +# make program = Download the hex file to the device, using avrdude. +# Please customize the avrdude settings below first! +# +# make debug = Start either simulavr or avarice as specified for debugging, +# with avr-gdb or avr-insight as the front end for debugging. +# +# make filename.s = Just compile filename.c into the assembler code only. +# +# make filename.i = Create a preprocessed source file for use in submitting +# bug reports to the GCC project. +# +# To rebuild project do "make clean" then "make all". +#---------------------------------------------------------------------------- + +HW?=default + +CONFIG ?= config.make +include ${CONFIG} + +#test: +# echo ${BOOT_PAGES} + +# MCU name +#MCU ?= atmega328 + +# Processor frequency. +# This will define a symbol, F_CPU, in all source code files equal to the +# processor frequency. You can then use this symbol in your source code to +# calculate timings. Do NOT tack on a 'UL' at the end, this will be done +# automatically to create a 32-bit value in your source code. +#F_CPU ?= 20000000 + + +# Output format. (can be srec, ihex, binary) +FORMAT = ihex + + +# Target file name (without extension). +TARGET = weiche1 + +# List C source files here. (C dependencies are automatically generated.) +#SRC ?= main.c + + +# List Assembler source files here. +# Make them always end in a capital .S. Files ending in a lowercase .s +# will not be considered source files but generated files (assembler +# output from the compiler), and will be deleted upon "make clean"! +# Even though the DOS/Win* filesystem matches both .s and .S the same, +# it will preserve the spelling of the filenames, and gcc itself does +# care about how the name is spelled on its command-line. +ASRC = + + +# Optimization level, can be [0, 1, 2, 3, s]. +# 0 = turn off optimization. s = optimize for size. +# (Note: 3 is not always the best optimization level. See avr-libc FAQ.) +OPT = s + + +# Debugging format. +# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs. +# AVR Studio 4.10 requires dwarf-2. +# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run. +DEBUG = dwarf-2 + + +# List any extra directories to look for include files here. +# Each directory must be seperated by a space. +# Use forward slashes for directory separators. +# For a directory that has spaces, enclose it in quotes. +EXTRAINCDIRS = + + +# Compiler flag to set the C Standard level. +# c89 = "ANSI" C +# gnu89 = c89 plus GCC extensions +# c99 = ISO C99 standard (not yet fully implemented) +# gnu99 = c99 plus GCC extensions +CSTANDARD = -std=gnu99 + + +# Place -D or -U options here +CDEFS = -DF_CPU=$(F_CPU)UL -DBOOT_START=${BOOT_START} -DBOOT_PAGES=${BOOT_PAGES} + + +# Place -I options here +CINCS = + +# Bootloader LDFLAGS +#BOOT_LDFLAGS=-Wl,-Ttext=${BOOT_START} + +#---------------- Compiler Options ---------------- +# -g*: generate debugging information +# -O*: optimization level +# -f...: tuning, see GCC manual and avr-libc documentation +# -Wall...: warning level +# -Wa,...: tell GCC to pass this to the assembler. +# -adhlns...: create assembler listing +CFLAGS += -g$(DEBUG) +CFLAGS += $(CDEFS) $(CINCS) +CFLAGS += -O$(OPT) +CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums +CFLAGS += -Wall -Wstrict-prototypes +CFLAGS += -Wa,-adhlns=$(<:.c=.lst) +CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS)) +CFLAGS += $(CSTANDARD) + + +#---------------- Assembler Options ---------------- +# -Wa,...: tell GCC to pass this to the assembler. +# -ahlms: create listing +# -gstabs: have the assembler create line number information; note that +# for use in COFF files, additional information about filenames +# and function names needs to be present in the assembler source +# files -- see avr-libc docs [FIXME: not yet described there] +ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs + + +#---------------- Library Options ---------------- +# Minimalistic printf version +PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min + +# Floating point printf version (requires MATH_LIB = -lm below) +PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt + +# If this is left blank, then it will use the Standard printf version. +PRINTF_LIB = +#PRINTF_LIB = $(PRINTF_LIB_MIN) +#PRINTF_LIB = $(PRINTF_LIB_FLOAT) + + +# Minimalistic scanf version +SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min + +# Floating point + %[ scanf version (requires MATH_LIB = -lm below) +SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt + +# If this is left blank, then it will use the Standard scanf version. +SCANF_LIB = +#SCANF_LIB = $(SCANF_LIB_MIN) +#SCANF_LIB = $(SCANF_LIB_FLOAT) + + +MATH_LIB = -lm + + +#---------------- External Memory Options ---------------- + +# 64 KB of external RAM, starting after internal RAM (ATmega128!), +# used for variables (.data/.bss) and heap (malloc()). +#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff + +# 64 KB of external RAM, starting after internal RAM (ATmega128!), +# only used for heap (malloc()). +#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff + +EXTMEMOPTS = + + + +#---------------- Linker Options ---------------- +# -Wl,...: tell GCC to pass this to linker. +# -Map: create map file +# --cref: add cross reference to map file +LDFLAGS = $(BOOT_LDFLAGS) -Wl,-Map=$(TARGET).map,--cref +LDFLAGS += $(EXTMEMOPTS) +LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) + + + +#---------------- Programming Options (avrdude) ---------------- + +# Programming hardware: alf avr910 avrisp bascom bsd +# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500 +# +# Type: avrdude -c ? +# to get a full listing. +# + +AVRDUDE_PROGRAMMER ?= avrisp2 + + +# com1 = serial port. Use lpt1 to connect to parallel port. +AVRDUDE_PORT ?= usb + +AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex +#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep + +AVRDUDE_WRITE_FUSES = -U lfuse:w:${LFUSE}:m -U hfuse:w:${HFUSE}:m \ + -U efuse:w:${EFUSE}:m + +# Uncomment the following if you want avrdude's erase cycle counter. +# Note that this counter needs to be initialized first using -Yn, +# see avrdude manual. +#AVRDUDE_ERASE_COUNTER = -y + +# Uncomment the following if you do /not/ wish a verification to be +# performed after programming the device. +# AVRDUDE_NO_VERIFY = -V + +# Increase verbosity level. Please use this when submitting bug +# reports about avrdude. See +# to submit bug reports. +#AVRDUDE_VERBOSE = -v -v + +AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) +AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY) +AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE) +AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER) +AVRDUDE_FLAGS += -B 20 + + +#---------------- Debugging Options ---------------- + +# For simulavr only - target MCU frequency. +DEBUG_MFREQ = $(F_CPU) + +# Set the DEBUG_UI to either gdb or insight. +# DEBUG_UI = gdb +DEBUG_UI = insight + +# Set the debugging back-end to either avarice, simulavr. +DEBUG_BACKEND = avarice +#DEBUG_BACKEND = simulavr + +# GDB Init Filename. +GDBINIT_FILE = __avr_gdbinit + +# When using avarice settings for the JTAG +JTAG_DEV = /dev/com1 + +# Debugging port used to communicate between GDB / avarice / simulavr. +DEBUG_PORT = 4242 + +# Debugging host used to communicate between GDB / avarice / simulavr, normally +# just set to localhost unless doing some sort of crazy debugging when +# avarice is running on a different computer. +DEBUG_HOST = localhost + + + +#============================================================================ + + +# Define programs and commands. +SHELL = sh +CC = avr-gcc +OBJCOPY = avr-objcopy +OBJDUMP = avr-objdump +SIZE = avr-size +NM = avr-nm +AVRDUDE = avrdude +REMOVE = rm -rf +COPY = cp +WINSHELL = cmd + + +# Define Messages +# English +MSG_ERRORS_NONE = Errors: none +MSG_BEGIN = -------- begin -------- +MSG_END = -------- end -------- +MSG_SIZE_BEFORE = Size before: +MSG_SIZE_AFTER = Size after: +MSG_COFF = Converting to AVR COFF: +MSG_EXTENDED_COFF = Converting to AVR Extended COFF: +MSG_FLASH = Creating load file for Flash: +MSG_EEPROM = Creating load file for EEPROM: +MSG_EXTENDED_LISTING = Creating Extended Listing: +MSG_SYMBOL_TABLE = Creating Symbol Table: +MSG_LINKING = Linking: +MSG_COMPILING = Compiling: +MSG_ASSEMBLING = Assembling: +MSG_CLEANING = Cleaning project: + + +# Define all object files. +OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) + +# Define all listing files. +LST = $(SRC:.c=.lst) $(ASRC:.S=.lst) + + +# Compiler flags to generate dependency files. +GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d + + +# Combine all necessary flags and optional flags. +# Add target processor to flags. +ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS) +ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) + + +# Default target. +all: begin gccversion sizebefore build sizeafter end + +build: elf hex eep lss sym + +elf: $(TARGET).elf +hex: $(TARGET).hex +eep: $(TARGET).eep +lss: $(TARGET).lss +sym: $(TARGET).sym + + +# Eye candy. +# AVR Studio 3.x does not check make's exit code but relies on +# the following magic strings to be generated by the compile job. +begin: + @echo + @echo $(MSG_BEGIN) + +end: + @echo $(MSG_END) + @echo + + +# Display size of file. +HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex +ELFSIZE = $(SIZE) -A $(TARGET).elf +AVRMEM = avr-mem.sh $(TARGET).elf $(MCU) + +sizebefore: + @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \ + $(AVRMEM) 2>/dev/null; echo; fi + +sizeafter: + @if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \ + $(AVRMEM) 2>/dev/null; echo; fi + + + +# Display compiler version information. +gccversion : + @$(CC) --version + + + +# Program the device. +program: $(TARGET).hex $(TARGET).eep + $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) + +fuses: + $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FUSES) + +# Generate avr-gdb config/init file which does the following: +# define the reset signal, load the target file, connect to target, and set +# a breakpoint at main(). +gdb-config: + @$(REMOVE) $(GDBINIT_FILE) + @echo define reset >> $(GDBINIT_FILE) + @echo SIGNAL SIGHUP >> $(GDBINIT_FILE) + @echo end >> $(GDBINIT_FILE) + @echo file $(TARGET).elf >> $(GDBINIT_FILE) + @echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE) +ifeq ($(DEBUG_BACKEND),simulavr) + @echo load >> $(GDBINIT_FILE) +endif + @echo break main >> $(GDBINIT_FILE) + +debug: gdb-config $(TARGET).elf +ifeq ($(DEBUG_BACKEND), avarice) + @echo Starting AVaRICE - Press enter when "waiting to connect" message displays. + @$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \ + $(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT) + @$(WINSHELL) /c pause + +else + @$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \ + $(DEBUG_MFREQ) --port $(DEBUG_PORT) +endif + @$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE) + + +# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. +COFFCONVERT=$(OBJCOPY) --debugging \ +--change-section-address .data-0x800000 \ +--change-section-address .bss-0x800000 \ +--change-section-address .noinit-0x800000 \ +--change-section-address .eeprom-0x810000 + + +coff: $(TARGET).elf + @echo + @echo $(MSG_COFF) $(TARGET).cof + $(COFFCONVERT) -O coff-avr $< $(TARGET).cof + + +extcoff: $(TARGET).elf + @echo + @echo $(MSG_EXTENDED_COFF) $(TARGET).cof + $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof + + + +# Create final output files (.hex, .eep) from ELF output file. +%.hex: %.elf + @echo + @echo $(MSG_FLASH) $@ + $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@ + +%.eep: %.elf + @echo + @echo $(MSG_EEPROM) $@ + -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \ + --change-section-lma .eeprom=0 -O $(FORMAT) $< $@ + +# Create extended listing file from ELF output file. +%.lss: %.elf + @echo + @echo $(MSG_EXTENDED_LISTING) $@ + $(OBJDUMP) -h -S $< > $@ + +# Create a symbol table from ELF output file. +%.sym: %.elf + @echo + @echo $(MSG_SYMBOL_TABLE) $@ + $(NM) -n $< > $@ + + + +# Link: create ELF output file from object files. +.SECONDARY : $(TARGET).elf +.PRECIOUS : $(OBJ) +%.elf: $(OBJ) + @echo + @echo $(MSG_LINKING) $@ + $(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS) + + +# Compile: create object files from C source files. +%.o : %.c Makefile + @echo + @echo $(MSG_COMPILING) $< + $(CC) -c $(ALL_CFLAGS) $< -o $@ + + +# Compile: create assembler files from C source files. +%.s : %.c Makefile + $(CC) -S $(ALL_CFLAGS) $< -o $@ + + +# Assemble: create object files from assembler source files. +%.o : %.S + @echo + @echo $(MSG_ASSEMBLING) $< + $(CC) -c $(ALL_ASFLAGS) $< -o $@ + +# Create preprocessed source for use in sending a bug report. +%.i : %.c + $(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@ + + +# Target: clean project. +clean: begin clean_list end + +clean_list : + @echo + @echo $(MSG_CLEANING) + $(REMOVE) $(TARGET).hex + $(REMOVE) $(TARGET).eep + $(REMOVE) $(TARGET).cof + $(REMOVE) $(TARGET).elf + $(REMOVE) $(TARGET).map + $(REMOVE) $(TARGET).sym + $(REMOVE) $(TARGET).lss + $(REMOVE) $(OBJ) + $(REMOVE) $(LST) + $(REMOVE) $(SRC:.c=.s) + $(REMOVE) $(SRC:.c=.d) + $(REMOVE) .dep + $(REMOVE) *~ + + + +# Include the dependency files. +-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*) + + +# Listing of phony targets. +.PHONY : all begin finish end sizebefore sizeafter gccversion \ +build elf hex eep lss sym coff extcoff \ +clean clean_list program debug gdb-config + diff --git a/trennfix/sw/config.make b/trennfix/sw/config.make new file mode 100644 index 0000000..303a371 --- /dev/null +++ b/trennfix/sw/config.make @@ -0,0 +1,24 @@ + +SRC = main.c + +################################################################################ +################################################################################ + +AVRDUDE_PROGRAMMER = avrisp2 +MCU=attiny25 +F_CPU = 16000000 + +# Fuse-Bits gibts praktisch bei http://www.engbedded.com/fusecalc ! +# 8 MHz interner RC-Oszillator usw. Brown out 4V +LFUSE=0x61 +HFUSE=0xdc +EFUSE=0xff + + + + + + + + + diff --git a/trennfix/sw/gpl.txt b/trennfix/sw/gpl.txt new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/trennfix/sw/gpl.txt @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/trennfix/sw/main.c b/trennfix/sw/main.c new file mode 100644 index 0000000..26a7ef0 --- /dev/null +++ b/trennfix/sw/main.c @@ -0,0 +1,317 @@ +/****************************************************************************** + * + * Trennfix firmware - main.c + * + * Copyright (C) 2017 Philipp Hachtmann + * + * 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 . + * + *****************************************************************************/ + +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include "pin_magic.h" + +#define LED _PIN(PORTB, PORTB2) +#define SENSE _PIN(PORTB, PORTB4) +#define DRIVE _PIN(PORTB, PORTB3) +#define BTN _PIN(PORTB, PB1) + +#define SIGIN (!PINVAL(SENSE)) + +#define BTN_PRESSED (PINVAL(BTN)) + +// #define DEBUG_TIMEOUT + +#ifdef DEBUG_TIMEOUT +#define MON_TIMEOUT(val) setpin(DRIVE, val) +#else +#define MON_TIMEOUT(xx) ({0;}) +#endif + + + +/* + * Lookup decoder number. + * + */ + +static uint8_t get_decoder(uint8_t mm_byte) +{ + switch(mm_byte) { + /* 0x00 is invalid */ + case 0xc0: return 1; + case 0x80: return 2; + case 0x30: return 3; + case 0xf0: return 4; + case 0xb0: return 5; + case 0x20: return 6; + case 0xe0: return 7; + case 0xa0: return 8; + + case 0x0c: return 9; + case 0xcc: return 10; + case 0x8c: return 11; + case 0x3c: return 12; + case 0xfc: return 13; + case 0xbc: return 14; + case 0x2c: return 15; + case 0xec: return 16; + case 0xac: return 17; + + case 0x08: return 18; + case 0xc8: return 19; + case 0x88: return 20; + case 0x38: return 21; + case 0xf8: return 22; + case 0xb8: return 23; + case 0x28: return 24; + case 0xe8: return 25; + + default: + return 0; + } +} + +static uint8_t get_command(uint8_t mm_byte) +{ + switch(mm_byte) { + case 0xc3: return 1; + case 0x03: return 2; + case 0xf3: return 3; + case 0x33: return 4; + case 0xcf: return 5; + case 0x0f: return 6; + case 0xff: return 7; + case 0x3f: return 8; + default: + return 0; + } +} + +static void setup_hw(void) +{ + /* Get rid of the 1/8 clock prescaler */ + CLKPR = (1 << CLKPCE); + CLKPR = 0; + + INPUT_PIN(SENSE); + INPUT_PIN(BTN); + OUTPUT_PIN(DRIVE); + OUTPUT_PIN(LED); + setpin(BTN, 1); /* Need pullup */ + _delay_ms(1); /* Let the line rise */ + + + GIMSK |= _BV(PCIE); /* Enable pin change interrupt */ + PCMSK = _BV(PCINT4); /* PB4, Rail sense input */ + + TCCR0A = 0; /* This is normal mode */ + TCCR0B = 0; /* Timer off */ + TIMSK |= _BV(OCIE0A); /* Get a match interrupt */ + TIMSK |= _BV(TOV0); /* Overflow interrupt */ + + /* We need 13 + 45 us delay, That's 464 clocks @8MHz*/ + OCR0A = 91; /* Prescaler 8 is used */ + + /* Timer 1 for timeout */ + /* We set it to 1024us by prescaler 64 and running full 256 */ + TCCR1 = 7; + TIMSK |= _BV(TOIE1); /* Overflow interrupt */ +} + +static uint8_t ctr = 0; + +static volatile uint8_t shift_sub; +static volatile uint8_t shift_zero; +static volatile uint8_t shift_decoder; +static volatile uint8_t shift_sub_first; +static volatile uint8_t shift_decoder_first; + +/* We will shift from right to left. + * XXXXXXXX XX XXXXXXXX + * shift_decoder shift_zero shift_sub + * + * The bits 7 downto 2 of shift_zero are ignored. + */ + +#define STOP_TIMER0 (TCCR0B = 0) + +volatile uint8_t bitno = 0; + + +static void zero(void) +{ + setpin(LED, 1); + _delay_ms(20); + setpin(LED, 0); + _delay_ms(980); + GIFR |= _BV(PCIF); +} + + +static void one(void) +{ + setpin(LED, 1); + _delay_ms(20); + setpin(LED, 0); + _delay_ms(160); + setpin(LED, 1); + _delay_ms(20); + setpin(LED, 0); + _delay_ms(800); + GIFR |= _BV(PCIF); +} + +static void trigger(void) +{ + setpin(DRIVE, 1); + _delay_us(20); + setpin(DRIVE, 0); +} + +static volatile uint8_t our_decoder = 3; +static volatile uint8_t our_key = 5; +static volatile uint8_t learn_mode = 0; + +ISR(TIMER0_COMPA_vect) { + + STOP_TIMER0; + + shift_decoder <<= 1; + if (shift_zero & 2) + shift_decoder |= 1; + shift_zero <<= 1; + if (shift_sub & 0x80) + shift_zero |= 1; + shift_sub <<= 1; + if (SIGIN) + shift_sub |= 1; + + bitno++; + + if (bitno == 18) { /* Save first received word */ + shift_sub_first = shift_sub; + shift_decoder_first = shift_decoder; + } else if (bitno == 36) { + + if ((shift_sub == shift_sub_first) && + (shift_decoder == shift_decoder_first)) { + uint8_t decoder = get_decoder(shift_decoder); + uint8_t command = get_command(shift_sub); + if (decoder) { + /* Congratulations, we have a valid command */ + trigger(); + + if (learn_mode) { + if (command) { + our_decoder = decoder; + our_key = command; + learn_mode = 0; + } + } else { + + if (decoder == our_decoder) { + if (command == our_key) + setpin(LED, 1); + if (command == 0) + setpin(LED, 0); + } + } + } + } + } +} + +#define START_TIMER0 ({TCNT0 = 0; TCCR0B = 2;}) +#define START_TIMER1 ({TCNT1 = 1; TCCR1 = 7; GTCCR |= 2;}) +#define STOP_TIMER1 ({TCCR1 = 0; TCNT1 = 1;}) + +ISR(TIM1_OVF_vect) +{ + STOP_TIMER1; + // if (!SIGIN) + // setpin(LED, 1); + bitno = 0; + MON_TIMEOUT(1); +} + +ISR(TIM0_OVF_vect) +{ + while(1) { + setpin(LED, 1); + _delay_ms(30); + setpin(LED, 1); + _delay_ms(30); + } + +} + +/* Shortest element seen 184 clocks */ +/* Officially 208 clocks */ +/* (1 + 7) * 208 clocks */ + +/* Pin change interrupt vector */ +ISR(PCINT0_vect) +{ + START_TIMER1; + MON_TIMEOUT(0); + + if (SIGIN) { + START_TIMER0; + } +} + + + +/****************************************************************************** + * + * main() - The main routine + * + */ + +int main(void) { + setup_hw(); + sei(); + // while(PINVAL(BTN)); + + while (1) { + if (!learn_mode) { + if (!PINVAL(BTN)) + learn_mode = 1; + } else { + setpin(LED, 1); + _delay_ms(30); + setpin(LED, 0); + _delay_ms(600); + } + +/* Main loop here */ + } + return 0; +} + +/****************************************************************************** + * The end :-) + */ diff --git a/trennfix/sw/pin_magic.h b/trennfix/sw/pin_magic.h new file mode 100644 index 0000000..f335e14 --- /dev/null +++ b/trennfix/sw/pin_magic.h @@ -0,0 +1,23 @@ +#ifndef __HACHTIS_PIN_MAGIC_H +#define __HACHTIS_PIN_MAGIC_H + +struct __ph_pin__ { + volatile uint8_t *addr; + uint8_t bitno; +}; + +#define _PIN(port, bit) ((volatile struct __ph_pin__){&port, bit}) + +#define LED _PIN(PORTB, PORTB2) + +#define OUTPUT_PIN(pin) (*(pin.addr - 1) |= _BV(pin.bitno)) +#define INPUT_PIN(pin) (*(pin.addr - 1) &= ~_BV(pin.bitno)) + +#define PINON(pin) (*pin.addr |= _BV(pin.bitno)) +#define PINOFF(pin) (*pin.addr &= ~_BV(pin.bitno)) + +#define PINVAL(pin) (*(pin.addr - 2) & _BV(pin.bitno) ? 1 : 0) + +#define setpin(pin, val) ((val) ? PINON(pin) : PINOFF(pin)) + +#endif -- 2.32.0