From c2d929d5ed3cd0e55d20a854c7f9784b0a2c2f69 Mon Sep 17 00:00:00 2001
From: Philipp Claves <pclaves@web.de>
Date: Tue, 11 Oct 2011 22:03:14 +0200
Subject: [PATCH] Power: Add UPS Code
---
Power/Makefile | 403 +++++++++++++++++++++++++++++++++++++++++++++++++
Power/main.c | 116 ++++++++++++++
2 files changed, 519 insertions(+)
create mode 100644 Power/Makefile
create mode 100644 Power/main.c
diff --git a/Power/Makefile b/Power/Makefile
new file mode 100644
index 0000000..c06b484
--- /dev/null
+++ b/Power/Makefile
@@ -0,0 +1,403 @@
+# WinAVR Sample makefile written by Eric B. Weddington, Jörg Wunsch, et al.
+# Released to the Public Domain
+# Please read the make user manual!
+#
+# Additional material for this makefile was submitted by:
+# Tim Henigan
+# Peter Fleury
+# Reiner Patommel
+# Sander Pool
+# Frederik Rouleau
+# Markus Pfaff
+#
+# On command line:
+#
+# make all = Make software.
+#
+# make clean = Clean out built project files.
+#
+# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
+#
+# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
+# 4.07 or greater).
+#
+# make program = Download the hex file to the device, using avrdude. Please
+# customize the avrdude settings below first!
+#
+# make filename.s = Just compile filename.c into the assembler code only
+#
+# To rebuild project do "make clean" then "make all".
+#
+
+# MCU name
+
+# MCU = atmega1284p
+MCU = attiny25
+
+#ATmega 128 wird von mir nicht unterstützt oder nur teilweise!
+#MCU = atmega128
+
+#Fuse settings for ATTiny25
+ifeq ($(MCU), attiny25)
+ FUSE_BITS = -u -U lfuse:w:0x62:m -U hfuse:w:0xCE:m -U efuse:w:0xFF:m
+ HEX_FILE_NAME = TINY25
+endif
+
+
+# Output format. (can be srec, ihex, binary)
+FORMAT = ihex
+
+# Target file name (without extension).
+TARGET = out/power_$(HEX_FILE_NAME)
+
+# Optimization level, can be [0, 1, 2, 3, s]. 0 turns off optimization.
+# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
+OPT = s
+
+# If there is more than one source file, append them above, or modify and
+# uncomment the following:
+
+SRC = main.c
+
+#SRC = main.c usart.c stack.c timer.c cmd.c base64.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 = ../avrcryptolib-nightly/avrcryptolib/gf256mul/gf256mul.S
+
+
+# List any extra directories to look for include files here.
+# Each directory must be seperated by a space.
+#EXTRAINCDIRS = ../avrcryptolib-nightly/avrcryptolib ../avrcryptolib-nightly/avrcryptolib/aes
+
+
+# Optional compiler flags.
+# -g: generate debugging information (for GDB, or for COFF conversion)
+# -O*: optimization level
+# -f...: tuning, see gcc manual and avr-libc documentation
+# -Wall...: warning level
+# -Wa,...: tell GCC to pass this to the assembler.
+# -ahlms: create assembler listing
+CFLAGS = -g -O$(OPT) \
+-funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \
+-Wall -Wstrict-prototypes \
+-Wa,-adhlns=$(<:.c=.lst) \
+$(patsubst %,-I%,$(EXTRAINCDIRS))
+
+
+# Set a "language standard" compiler flag.
+# Unremark just one line below to set the language standard to use.
+# gnu99 = C99 + GNU extensions. See GCC manual for more information.
+#CFLAGS += -std=c89
+#CFLAGS += -std=gnu89
+#CFLAGS += -std=c99
+CFLAGS += -std=gnu99
+
+
+
+# Optional assembler flags.
+# -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=$(<:.S=.lst),-gstabs
+
+
+
+# Optional linker flags.
+# -Wl,...: tell GCC to pass this to linker.
+# -Map: create map file
+# --cref: add cross reference to map file
+LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
+
+
+
+# Additional libraries
+
+# Minimalistic printf version
+#LDFLAGS += -Wl,-u,vfprintf -lprintf_min
+
+# Floating point printf version (requires -lm below)
+#LDFLAGS += -Wl,-u,vfprintf -lprintf_flt
+
+# -lm = math library
+LDFLAGS += -lm
+
+
+
+
+# Programming support using avrdude. Settings and variables.
+
+# 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 = stk500v2
+#AVRDUDE_PROGRAMMER = usbtiny
+#AVRDUDE_PROGRAMMER = USBasp
+
+#AVRDUDE_PORT = usb # programmer connected to USB port
+AVRDUDE_PORT = /dev/ttyUSB0 # programmer connected to serial device
+#AVRDUDE_PORT = lpt1 # programmer connected to parallel port
+
+AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex $(FUSE_BITS)
+#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
+
+#AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -b 115200 -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS = -B 10 -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
+
+# 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 += -y
+
+# Uncomment the following if you do /not/ wish a verification to be
+# performed after programming the device.
+#AVRDUDE_FLAGS += -V
+
+# Increase verbosity level. Please use this when submitting bug
+# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
+# to submit bug reports.
+#AVRDUDE_FLAGS += -v -v
+
+
+
+
+# ---------------------------------------------------------------------------
+
+# Define programs and commands.
+SHELL = sh
+
+CC = avr-gcc
+
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+
+
+# Programming support using avrdude.
+AVRDUDE = avrdude
+
+
+REMOVE = rm -f
+COPY = cp
+
+HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
+ELFSIZE = $(SIZE) -A $(TARGET).elf
+
+
+
+# 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 = $(ASRC:.S=.lst) $(SRC:.c=.lst)
+
+# Combine all necessary flags and optional flags.
+# Add target processor to flags.
+ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
+ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
+
+
+
+# Default target.
+all: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \
+ $(TARGET).lss $(TARGET).sym sizeafter finished end
+
+
+# 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)
+
+finished:
+ @echo $(MSG_ERRORS_NONE)
+
+end:
+ @echo $(MSG_END)
+ @echo
+
+
+# Display size of file.
+sizebefore:
+ @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
+
+sizeafter:
+ @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
+
+
+
+# Display compiler version information.
+gccversion :
+ @$(CC) --version
+
+
+
+
+# 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
+
+
+
+
+# Program the device.
+program: $(TARGET).hex $(TARGET).eep
+ $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
+
+
+
+
+# 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) $@
+ avr-nm -n $< > $@
+
+
+
+# Link: create ELF output file from object files.
+.SECONDARY : $(TARGET).elf
+.PRECIOUS : $(OBJ)
+%.elf: $(OBJ)
+ @echo
+ @echo $(MSG_LINKING) $@
+ $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
+
+
+# Compile: create object files from C source files.
+%.o : %.c
+ @echo
+ @echo $(MSG_COMPILING) $<
+ $(CC) -c $(ALL_CFLAGS) $< -o $@
+
+
+# Compile: create assembler files from C source files.
+%.s : %.c
+ $(CC) -S $(ALL_CFLAGS) $< -o $@
+
+
+# Assemble: create object files from assembler source files.
+%.o : %.S
+ @echo
+ @echo $(MSG_ASSEMBLING) $<
+ $(CC) -c $(ALL_ASFLAGS) $< -o $@
+
+
+
+
+
+
+# Target: clean project.
+clean: begin clean_list finished end
+
+clean_list :
+ @echo
+ @echo $(MSG_CLEANING)
+# $(REMOVE) $(TARGET).hex
+ $(REMOVE) $(TARGET).eep
+ $(REMOVE) $(TARGET).obj
+ $(REMOVE) $(TARGET).cof
+ $(REMOVE) $(TARGET).elf
+ $(REMOVE) $(TARGET).map
+ $(REMOVE) $(TARGET).obj
+ $(REMOVE) $(TARGET).a90
+ $(REMOVE) $(TARGET).sym
+ $(REMOVE) $(TARGET).lnk
+ $(REMOVE) $(TARGET).lss
+ $(REMOVE) $(OBJ)
+ $(REMOVE) $(LST)
+ $(REMOVE) $(SRC:.c=.s)
+ $(REMOVE) $(SRC:.c=.d)
+
+
+# Automatically generate C source code dependencies.
+# (Code originally taken from the GNU make user manual and modified
+# (See README.txt Credits).)
+#
+# Note that this will work with sh (bash) and sed that is shipped with WinAVR
+# (see the SHELL variable defined above).
+# This may not work with other shells or other seds.
+#
+%.d: %.c
+ set -e; $(CC) -MM $(ALL_CFLAGS) $< \
+ | sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \
+ [ -s $@ ] || rm -f $@
+
+
+# Remove the '-' if you want to see the dependency files generated.
+-include $(SRC:.c=.d)
+
+
+
+# Listing of phony targets.
+.PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff \
+ clean clean_list program
+
diff --git a/Power/main.c b/Power/main.c
new file mode 100644
index 0000000..5c2b56b
--- /dev/null
+++ b/Power/main.c
@@ -0,0 +1,116 @@
+#define F_CPU 1000000
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <util/delay.h>
+#include <avr/sleep.h>
+#include <avr/interrupt.h>
+#define ADC_VBAT 2
+
+#define PIN_RELAIS_OFF (1 << 0)
+#define PIN_AC_ON (1 << 1)
+#define PIN_STATUS (1 << 2)
+#define PIN_RELAIS_ON (1 << 3)
+#define PIN_VBAT (1 << 4)
+
+#define AC_ON() (PINB & PIN_AC_ON)
+
+uint8_t battery_on = 0;
+#define BATTERY_RELAIS_ON() {PORTB |= PIN_RELAIS_ON; _delay_ms(5); PORTB &= ~PIN_RELAIS_ON; _delay_ms(5);}
+#define BATTERY_RELAIS_OFF() {PORTB |= PIN_RELAIS_OFF; _delay_ms(5); PORTB &= ~PIN_RELAIS_OFF; _delay_ms(5);}
+
+#define BATTERY_TIMEOUT 20
+uint8_t battery_timeout = BATTERY_TIMEOUT;
+#define BATTERY_VOLTAGE_THRESHOLD 1100
+#define BATTERY_VOLTAGE_MAX 1380
+
+ISR(ADC_vect){
+ ;
+}
+
+void sleep(void){
+ wdt_reset();
+ set_sleep_mode(SLEEP_MODE_ADC);
+ sleep_mode();
+}
+
+uint16_t ADC_read(uint8_t channel) {
+ uint16_t result;
+
+ ADMUX = channel | (1 << REFS1) | (1 << REFS2); // Select channel, 2.56V internal Reference voltage.
+
+ ADCSRA = (1 << ADEN) | (1 << ADPS2) |(1 << ADIE); // | (1 << ADPS1) ; //Enable and set Prescaler /16
+
+ //Warmup read
+ ADCSRA |= (1 << ADSC);
+ sleep();
+ while (ADCSRA & (1 << ADSC)) {;}
+ result = ADCW;
+ result = 0;
+
+ //Actual Read
+ for(uint8_t i=0; i < 4; i++){
+ ADCSRA |= (1 << ADSC);
+ sleep();
+ while (ADCSRA & (1 << ADSC)) {;}
+ result += ADCW;
+ }
+
+ //Disable ADC
+ ADCSRA &= ~(1 << ADEN);
+
+ result /= 4;
+
+ return result;
+}
+
+
+uint16_t ADC_read_voltage(uint8_t channel, uint16_t mvmax){
+ uint32_t raw = ADC_read(channel);
+ return ((raw * (uint32_t)mvmax) / 1024L);
+}
+
+
+int main(void){
+ wdt_enable(WDTO_500MS);
+ wdt_reset();
+ sei();
+
+ DDRB = PIN_RELAIS_OFF | PIN_RELAIS_ON;
+ PRR = (1 << PRUSI) | (1 << PRTIM1) | (1 << PRTIM0); //Shutdown not needed hardware (USI and TIMER1)
+
+ while (1){
+ wdt_reset();
+ if (AC_ON()){
+ if (! battery_on) {
+ BATTERY_RELAIS_ON();
+ battery_on = 1;
+ }
+
+ DDRB |= PIN_STATUS;
+ PORTB |= PIN_STATUS;
+
+ battery_timeout = BATTERY_TIMEOUT;
+ } else {
+ PORTB &= ~PIN_STATUS;
+ DDRB &= ~PIN_STATUS;
+
+
+ if (ADC_read_voltage(ADC_VBAT, BATTERY_VOLTAGE_MAX) <= BATTERY_VOLTAGE_THRESHOLD){
+ battery_timeout--;
+// //Battery voltage too low for too long.
+// //Commit suicide
+ if ((battery_timeout == 0) && ((PINB & PIN_STATUS) == 0)){
+ BATTERY_RELAIS_OFF();
+// //We should be dead by now, but clean the state
+// //in case the capaciator lasts a little longer.
+ battery_on = 0;
+ battery_timeout = BATTERY_TIMEOUT;
+ }
+ } else {
+ battery_timeout = BATTERY_TIMEOUT;
+ }
+ }
+// _delay_ms(10);
+ }
+}
\ No newline at end of file
--
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