arduino-0018-windows
This commit is contained in:
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157fd6f1a1
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5182 changed files with 950586 additions and 0 deletions
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# Hey Emacs, this is a -*- makefile -*-
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||||
# AVR-GCC Makefile template, derived from the WinAVR template (which
|
||||
# is public domain), believed to be neutral to any flavor of "make"
|
||||
# (GNU make, BSD make, SysV make)
|
||||
|
||||
|
||||
MCU = attiny13
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||||
#MCU = attiny45
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||||
FORMAT = ihex
|
||||
TARGET = asmdemo
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||||
SRC = $(TARGET).c
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||||
ASRC = isrs.S
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OPT = s
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||||
# Name of this Makefile (used for "make depend").
|
||||
MAKEFILE = Makefile
|
||||
|
||||
# Compiler flag to set the C Standard level.
|
||||
# c89 - "ANSI" C
|
||||
# gnu89 - c89 plus GCC extensions
|
||||
# c99 - ISO C99 standard (not yet fully implemented)
|
||||
# gnu99 - c99 plus GCC extensions
|
||||
CSTANDARD = -std=gnu99
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||||
|
||||
# Place -D or -U options here
|
||||
CDEFS =
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||||
|
||||
# Place -I options here
|
||||
CINCS =
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||||
|
||||
|
||||
CDEBUG = -g
|
||||
CWARN = -Wall -Wstrict-prototypes
|
||||
CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
|
||||
#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
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||||
CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA)
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||||
|
||||
|
||||
#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
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||||
|
||||
|
||||
#Additional libraries.
|
||||
|
||||
# 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
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||||
|
||||
PRINTF_LIB =
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||||
|
||||
# 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
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||||
|
||||
SCANF_LIB =
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||||
|
||||
MATH_LIB = -lm
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||||
|
||||
# External memory options
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||||
|
||||
# 64 KB of external RAM, starting after internal RAM (ATmega128!),
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||||
# used for variables (.data/.bss) and heap (malloc()).
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#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
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||||
|
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# 64 KB of external RAM, starting after internal RAM (ATmega128!),
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||||
# only used for heap (malloc()).
|
||||
#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
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||||
|
||||
EXTMEMOPTS =
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||||
|
||||
#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
|
||||
LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
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||||
|
||||
|
||||
# Programming support using avrdude. Settings and variables.
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||||
|
||||
AVRDUDE_PROGRAMMER = stk500v2
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AVRDUDE_PORT = /dev/cuaa1
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||||
|
||||
AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
|
||||
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
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||||
|
||||
|
||||
# Uncomment the following if you want avrdude's erase cycle counter.
|
||||
# Note that this counter needs to be initialized first using -Yn,
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||||
# see avrdude manual.
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||||
#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
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||||
|
||||
# Increase verbosity level. Please use this when submitting bug
|
||||
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
|
||||
# to submit bug reports.
|
||||
#AVRDUDE_VERBOSE = -v -v
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||||
|
||||
AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
|
||||
AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER)
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|
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|
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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
|
||||
NM = avr-nm
|
||||
AVRDUDE = avrdude
|
||||
REMOVE = rm -f
|
||||
MV = mv -f
|
||||
|
||||
# Define all object files.
|
||||
OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
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||||
|
||||
# Define all listing files.
|
||||
LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
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||||
|
||||
# Combine all necessary flags and optional flags.
|
||||
# Add target processor to flags.
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||||
ALL_CFLAGS = -mmcu=$(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: build
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build: elf hex eep
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elf: $(TARGET).elf
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hex: $(TARGET).hex
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eep: $(TARGET).eep
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lss: $(TARGET).lss
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sym: $(TARGET).sym
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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) $(AVRDUDE_WRITE_EEPROM)
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|
||||
|
||||
|
||||
|
||||
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
|
||||
COFFCONVERT=$(OBJCOPY) --debugging \
|
||||
--change-section-address .data-0x800000 \
|
||||
--change-section-address .bss-0x800000 \
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--change-section-address .noinit-0x800000 \
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--change-section-address .eeprom-0x810000
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coff: $(TARGET).elf
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$(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof
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|
||||
|
||||
extcoff: $(TARGET).elf
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||||
$(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof
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|
||||
|
||||
.SUFFIXES: .elf .hex .eep .lss .sym
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.elf.hex:
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$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
|
||||
|
||||
.elf.eep:
|
||||
-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
|
||||
--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
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||||
|
||||
# Create extended listing file from ELF output file.
|
||||
.elf.lss:
|
||||
$(OBJDUMP) -h -S $< > $@
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||||
|
||||
# Create a symbol table from ELF output file.
|
||||
.elf.sym:
|
||||
$(NM) -n $< > $@
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||||
|
||||
|
||||
|
||||
# Link: create ELF output file from object files.
|
||||
$(TARGET).elf: $(OBJ)
|
||||
$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
.c.o:
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||||
$(CC) -c $(ALL_CFLAGS) $< -o $@
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||||
|
||||
|
||||
# Compile: create assembler files from C source files.
|
||||
.c.s:
|
||||
$(CC) -S $(ALL_CFLAGS) $< -o $@
|
||||
|
||||
|
||||
# Assemble: create object files from assembler source files.
|
||||
.S.o:
|
||||
$(CC) -c $(ALL_ASFLAGS) $< -o $@
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||||
|
||||
|
||||
|
||||
# Target: clean project.
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||||
clean:
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||||
$(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \
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||||
$(TARGET).map $(TARGET).sym $(TARGET).lss \
|
||||
$(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d)
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||||
|
||||
depend:
|
||||
if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
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||||
then \
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||||
sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
|
||||
$(MAKEFILE).$$$$ && \
|
||||
$(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
|
||||
fi
|
||||
echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
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||||
>> $(MAKEFILE); \
|
||||
$(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)
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||||
|
||||
.PHONY: all build elf hex eep lss sym program coff extcoff clean depend
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||||
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||||
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@ -0,0 +1,146 @@
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/*
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* ----------------------------------------------------------------------------
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||||
* "THE BEER-WARE LICENSE" (Revision 42):
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||||
* Joerg Wunsch wrote this file. As long as you retain this notice you
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||||
* can do whatever you want with this stuff. If we meet some day, and you think
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||||
* this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
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||||
* ----------------------------------------------------------------------------
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*
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* Demo combining C and assembly source files.
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*
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* This demo implements an RC model type PWM decoder. The incoming
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* PWM signal consists of a pulse sequence with a pulse width of 920
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* microseconds up to 2120 microseconds (1520 microseconds being the
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* neutral point). Depending on the value of the decoded incoming
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* PWM, an outgoing PWM is controlled between 0 and 100 %.
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*
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* The project is intented to be run on an ATtiny13 that has only one
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* timer channel (timer 0), so both the incoming signal discrimination
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* as well as the outgoing PWM need to run on the same timer.
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*
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* For verification purposes, the same project can also be run on an
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* ATtiny25/45/85, where timer 1 can be used to evaluate the incoming
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* PWM signal, and timer 0 to generate the outgoing PWM. In that
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* case, no additional assembly code is needed.
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*
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* $Id: asmdemo.c,v 1.1 2006/08/29 19:45:06 joerg_wunsch Exp $
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*/
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/*
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* This is the main C source file for the demo.
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*/
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#include <avr/interrupt.h>
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#include <avr/io.h>
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#include <avr/sleep.h>
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#include "project.h"
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volatile uint16_t pwm_incoming;
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volatile struct
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{
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uint8_t pwm_received: 1;
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}
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intbits;
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void
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ioinit(void)
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{
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counter_hi = 0;
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flags = 0;
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/*
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* Timer 0 runs as phase-correct PWM at full clock, OC0B connects to
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* the PWM engine.
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*/
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TCCR0A = (1 << COM0B1) | (1 << WGM00);
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TCCR0B = (1 << CS00);
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OCR0A = 255;
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#if defined(__AVR_ATtiny13__)
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TIMSK0 = (1 << TOIE0) | (1 << OCIE0A);
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# define F_CPU 1200000ul
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/* Minimal PWM pulse width is 920 us. */
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# define MIN_PWM_VAL ((920ul * F_CPU) / 1000000ul)
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/* Maximal PWM pulse width is 2120 us */
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# define MAX_PWM_VAL ((2120ul * F_CPU) / 1000000ul)
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#elif defined(__AVR_ATtiny25__) ||\
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defined(__AVR_ATtiny45__) ||\
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defined(__AVR_ATtiny85__)
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# define F_CPU 1000000ul
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/*
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* We use a prescaler of 16 here to avoid the 32-bit calculations
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* below.
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*/
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/* Minimal PWM pulse width is 920 us. */
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# define MIN_PWM_VAL ((920ul * F_CPU) / 16 / 1000000ul)
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/* Maximal PWM pulse width is 2120 us */
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# define MAX_PWM_VAL ((2120ul * F_CPU) / 16 / 1000000ul)
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#else
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# error "Don't know how to run on your MCU_TYPE."
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#endif
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PCMSK = (1 << 4);
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GIFR = (1 << PCIF);
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GIMSK = (1 << PCIE);
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DDRB = (1 << PB1);
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PORTB = 0;
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sei();
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}
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#if defined(__AVR_ATtiny25__) ||\
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defined(__AVR_ATtiny45__) ||\
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defined(__AVR_ATtiny85__)
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ISR(PCINT0_vect)
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{
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uint8_t tcnt1;
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if (PINB & (1 << 4))
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{
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/* Start timer 1 with a prescaler of 16. */
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TCNT1 = 0;
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TCCR1 = (1 << CS12) | (1 << CS10);
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return;
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}
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/* Stop timer 1, current value is pulse width. */
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tcnt1 = TCNT1;
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TCCR1 = 0;
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GIMSK &= ~(1 << PCIE);
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pwm_incoming = tcnt1;
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intbits.pwm_received = 1;
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}
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#endif /* ATtinyX5 */
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int
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main(void)
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{
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ioinit();
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for (;;)
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{
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if (intbits.pwm_received)
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{
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intbits.pwm_received = 0;
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#if defined(__AVR_ATtiny13__)
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if (pwm_incoming < MIN_PWM_VAL)
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pwm_incoming = MIN_PWM_VAL;
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else if (pwm_incoming > MAX_PWM_VAL)
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pwm_incoming = MAX_PWM_VAL;
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OCR0B = (pwm_incoming - MIN_PWM_VAL) * 255ul / (MAX_PWM_VAL - MIN_PWM_VAL);
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#else
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OCR0B = (pwm_incoming - MIN_PWM_VAL) * 255u / (MAX_PWM_VAL - MIN_PWM_VAL);
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#endif
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GIFR = (1 << PCIF);
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GIMSK |= (1 << PCIE);
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}
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sleep_mode();
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}
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}
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@ -0,0 +1,128 @@
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/*
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||||
* ----------------------------------------------------------------------------
|
||||
* "THE BEER-WARE LICENSE" (Revision 42):
|
||||
* Joerg Wunsch wrote this file. As long as you retain this notice you
|
||||
* can do whatever you want with this stuff. If we meet some day, and you think
|
||||
* this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
|
||||
* ----------------------------------------------------------------------------
|
||||
*
|
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* Demo combining C and assembly source files.
|
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*
|
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* $Id: isrs.S,v 1.1 2006/08/29 19:45:06 joerg_wunsch Exp $
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*/
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/*
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* This file contains the interrupt service routine implementations
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||||
* when compiling the project for the ATtiny13 target.
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||||
*/
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||||
#include <avr/io.h>
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||||
|
||||
#include "project.h"
|
||||
|
||||
#if defined(__AVR_ATtiny13__)
|
||||
|
||||
/*
|
||||
* Timer 0 hit TOP (0xff), i.e. it turns from up-counting
|
||||
* into down-counting direction.
|
||||
*/
|
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.global TIM0_COMPA_vect
|
||||
TIM0_COMPA_vect:
|
||||
in sreg_save, _SFR_IO_ADDR(SREG)
|
||||
inc counter_hi
|
||||
clr flags
|
||||
out _SFR_IO_ADDR(SREG), sreg_save
|
||||
reti
|
||||
|
||||
/*
|
||||
* Timer 0 hit BOTTOM (0x00), i.e. it turns from down-counting
|
||||
* into up-counting direction.
|
||||
*/
|
||||
.global TIM0_OVF_vect
|
||||
TIM0_OVF_vect:
|
||||
in sreg_save, _SFR_IO_ADDR(SREG)
|
||||
inc counter_hi
|
||||
ser flags
|
||||
out _SFR_IO_ADDR(SREG), sreg_save
|
||||
reti
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||||
|
||||
;;; one 16-bit word to store our rising edge's timestamp
|
||||
.lcomm starttime.0, 2
|
||||
|
||||
.extern pwm_incoming
|
||||
.extern intbits
|
||||
|
||||
.global PCINT0_vect
|
||||
PCINT0_vect:
|
||||
in sreg_save, _SFR_IO_ADDR(SREG)
|
||||
|
||||
;; save our working registers
|
||||
push r18
|
||||
push r19
|
||||
push r20
|
||||
push r21
|
||||
|
||||
;; Now that we are ready to fetch the current
|
||||
;; value of TCNT0, allow interrupts for a
|
||||
;; moment. As the effect of the SEI will be
|
||||
;; deferred by one instruction, any possible
|
||||
;; rollover of TCNT0 (hitting BOTTOM when
|
||||
;; counting down, or MAX when counting up) will
|
||||
;; allow the above ISRs to trigger right here,
|
||||
;; and update their status, so our combined
|
||||
;; 16-bit time from [counter_hi, TCNT0] will
|
||||
;; be correct.
|
||||
sei
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||||
in r20, _SFR_IO_ADDR(TCNT0)
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||||
cli
|
||||
;; Now, make our working copy of the status,
|
||||
;; so we can re-enable interrupts again.
|
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mov r21, counter_hi
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mov r19, flags
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sei
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||||
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||||
;; what direction were we counting?
|
||||
sbrs r19, 0
|
||||
;; we are down-counting, invert TCNT0
|
||||
com r20
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||||
;; at this point, r21:20 has our current
|
||||
;; 16-bit time
|
||||
|
||||
;; now, look which of the edges triggered
|
||||
;; our pin-change interrupt
|
||||
sbis _SFR_IO_ADDR(PINB), 4
|
||||
rjmp 10f
|
||||
;; rising edge detected, just record starttime
|
||||
sts (starttime.0) + 1, r21
|
||||
sts starttime.0, r20
|
||||
rjmp 99f ; we are done here
|
||||
|
||||
;; Falling edge: compute pulse width, store it
|
||||
;; into pwm_incoming, disable pin-change
|
||||
;; interrupt until the upper layers had a chance
|
||||
;; to fetch the result.
|
||||
|
||||
10: in r18, _SFR_IO_ADDR(GIMSK)
|
||||
andi r18, ~(1 << PCIE)
|
||||
out _SFR_IO_ADDR(GIMSK), r18
|
||||
|
||||
;; pwm_incoming = current_time - starttime
|
||||
lds r19, (starttime.0) + 1
|
||||
lds r18, starttime.0
|
||||
sub r20, r18
|
||||
sbc r21, r19
|
||||
sts (pwm_incoming) + 1, r21
|
||||
sts pwm_incoming, r20
|
||||
|
||||
;; signal upper layer
|
||||
lds r18, intbits
|
||||
ori r18, 1
|
||||
sts intbits, r18
|
||||
99:
|
||||
pop r21
|
||||
pop r20
|
||||
pop r19
|
||||
pop r18
|
||||
|
||||
out _SFR_IO_ADDR(SREG), sreg_save
|
||||
reti
|
||||
#endif /* ATtiny13 */
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
/*
|
||||
* ----------------------------------------------------------------------------
|
||||
* "THE BEER-WARE LICENSE" (Revision 42):
|
||||
* Joerg Wunsch wrote this file. As long as you retain this notice you
|
||||
* can do whatever you want with this stuff. If we meet some day, and you think
|
||||
* this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
|
||||
* ----------------------------------------------------------------------------
|
||||
*
|
||||
* Demo combining C and assembly source files.
|
||||
*
|
||||
* $Id: project.h,v 1.1 2006/08/29 19:45:06 joerg_wunsch Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
* Global register variables.
|
||||
*/
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
# define sreg_save r2
|
||||
# define flags r16
|
||||
# define counter_hi r4
|
||||
|
||||
#else /* !ASSEMBLER */
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
register uint8_t sreg_save asm("r2");
|
||||
register uint8_t flags asm("r16");
|
||||
register uint8_t counter_hi asm("r4");
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
Reference in a new issue