Michael Hayes
13 years ago
parent
cd2e6f4460
commit
1320cad49c
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# File: Makefile
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# Author: M. P. Hayes, UCECE
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# Date: 12 Sep 2010
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# Descr: Makefile for voltmeter1
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# Definitions.
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CC = avr-gcc
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CFLAGS = -mmcu=atmega32u2 -Os -Wall -Wstrict-prototypes -Wextra -g -I. -I../../drivers -I../../fonts -I../../drivers/avr -I../../utils
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OBJCOPY = avr-objcopy
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SIZE = avr-size
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DEL = rm
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# Default target.
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all: voltmeter1.out
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# Compile: create object files from C source files.
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voltmeter1.o: voltmeter1.c ../../drivers/avr/system.h ../../drivers/avr/timer.h ../../drivers/display.h ../../fonts/font3x5_1.h ../../utils/font.h ../../utils/task.h ../../utils/tinygl.h adc.h
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$(CC) -c $(CFLAGS) $< -o $@
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adc.o: adc.c ../../drivers/avr/delay.h ../../drivers/avr/pio.h ../../drivers/avr/system.h adc.h
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$(CC) -c $(CFLAGS) $< -o $@
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pio.o: ../../drivers/avr/pio.c ../../drivers/avr/pio.h ../../drivers/avr/system.h
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$(CC) -c $(CFLAGS) $< -o $@
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system.o: ../../drivers/avr/system.c ../../drivers/avr/system.h
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$(CC) -c $(CFLAGS) $< -o $@
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timer.o: ../../drivers/avr/timer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h
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$(CC) -c $(CFLAGS) $< -o $@
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display.o: ../../drivers/display.c ../../drivers/avr/system.h ../../drivers/display.h ../../drivers/ledmat.h
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$(CC) -c $(CFLAGS) $< -o $@
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ledmat.o: ../../drivers/ledmat.c ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../drivers/ledmat.h
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$(CC) -c $(CFLAGS) $< -o $@
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font.o: ../../utils/font.c ../../drivers/avr/system.h ../../utils/font.h
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$(CC) -c $(CFLAGS) $< -o $@
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task.o: ../../utils/task.c ../../drivers/avr/system.h ../../drivers/avr/timer.h ../../utils/task.h
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$(CC) -c $(CFLAGS) $< -o $@
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tinygl.o: ../../utils/tinygl.c ../../drivers/avr/system.h ../../drivers/display.h ../../utils/font.h ../../utils/tinygl.h
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$(CC) -c $(CFLAGS) $< -o $@
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# Link: create output file (executable) from object files.
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voltmeter1.out: voltmeter1.o adc.o pio.o system.o timer.o display.o ledmat.o font.o task.o tinygl.o
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$(CC) $(CFLAGS) $^ -o $@ -lm
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$(SIZE) $@
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# Target: clean project.
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.PHONY: clean
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clean:
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-$(DEL) *.o *.out *.hex
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# Target: program project.
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.PHONY: program
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program: voltmeter1.out
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$(OBJCOPY) -O ihex voltmeter1.out voltmeter1.hex
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dfu-programmer atmega32u2 erase; dfu-programmer atmega32u2 flash voltmeter1.hex; dfu-programmer atmega32u2 start
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# File: Makefile
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# Author: M. P. Hayes, UCECE
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# Date: 11 Sep 2010
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# Descr: Makefile for voltmeter1
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CC = gcc
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CFLAGS = -Wall -Wstrict-prototypes -Wextra -g -I. -I../../drivers/test -I../../drivers -I../../fonts -I../../utils
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DEL = rm
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# Default target.
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all: voltmeter1
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# Compile: create object files from C source files.
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voltmeter1-test.o: voltmeter1.c ../../drivers/display.h ../../drivers/test/system.h ../../drivers/test/timer.h ../../fonts/font3x5_1.h ../../utils/font.h ../../utils/task.h ../../utils/tinygl.h adc.h
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$(CC) -c $(CFLAGS) $< -o $@
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adc-test.o: adc.c ../../drivers/test/avrtest.h ../../drivers/test/delay.h ../../drivers/test/pio.h ../../drivers/test/system.h adc.h
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$(CC) -c $(CFLAGS) $< -o $@
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display-test.o: ../../drivers/display.c ../../drivers/display.h ../../drivers/ledmat.h ../../drivers/test/system.h
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$(CC) -c $(CFLAGS) $< -o $@
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ledmat-test.o: ../../drivers/ledmat.c ../../drivers/ledmat.h ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
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$(CC) -c $(CFLAGS) $< -o $@
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mgetkey-test.o: ../../drivers/test/mgetkey.c ../../drivers/test/mgetkey.h
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$(CC) -c $(CFLAGS) $< -o $@
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pio-test.o: ../../drivers/test/pio.c ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
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$(CC) -c $(CFLAGS) $< -o $@
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system-test.o: ../../drivers/test/system.c ../../drivers/test/avrtest.h ../../drivers/test/mgetkey.h ../../drivers/test/pio.h ../../drivers/test/system.h
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$(CC) -c $(CFLAGS) $< -o $@
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timer-test.o: ../../drivers/test/timer.c ../../drivers/test/system.h ../../drivers/test/timer.h
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$(CC) -c $(CFLAGS) $< -o $@
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font-test.o: ../../utils/font.c ../../drivers/test/system.h ../../utils/font.h
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$(CC) -c $(CFLAGS) $< -o $@
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task-test.o: ../../utils/task.c ../../drivers/test/system.h ../../drivers/test/timer.h ../../utils/task.h
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$(CC) -c $(CFLAGS) $< -o $@
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tinygl-test.o: ../../utils/tinygl.c ../../drivers/display.h ../../drivers/test/system.h ../../utils/font.h ../../utils/tinygl.h
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$(CC) -c $(CFLAGS) $< -o $@
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# Link: create executable file from object files.
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voltmeter1: voltmeter1-test.o adc-test.o display-test.o ledmat-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o task-test.o tinygl-test.o
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$(CC) $(CFLAGS) $^ -o $@ -lrt
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# Clean: delete derived files.
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.PHONY: clean
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clean:
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-$(DEL) voltmeter1 voltmeter1-test.o adc-test.o display-test.o ledmat-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o task-test.o tinygl-test.o
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#include "avr/io.h"
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#include "pio.h"
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#include "delay.h"
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#include "adc.h"
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/**
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This requires a capacitor connected from AIN0 (P1-3) to ground
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(P1-1) and a resistor connected from AIN0 (P1-3) to PD5 (P1-7).
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The unknown input voltage is applied to AIN3 (P1-6).
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It operates by applying a fixed voltage from PD5 (5 V, assuming the
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UCFK4 is powered from USB) to the capacitor and timing how long it
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takes for the capacitor voltage to exceed the unknown voltage using
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the comparator.
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Here's the typical usage for two channels.:
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adc_init ();
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adc_enable (ADC_CHANNEL1);
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adc_enable (ADC_CHANNEL2);
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adc_measure (ADC_CHANNEL1);
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wait until capacitor discharged
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adc_measure (ADC_CHANNEL2);
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Note adc_measure blocks until the voltage on the capacitor exceeds
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the voltage being measured. adc_measure cannot be called again
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until the capacitor is discharged. This could be greatly sped up
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by using another PIO directly connected to the capacitor. Better
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still, since PD1 shares the same pin as AIN0, it can be configured
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as a low output to more rapidly discharge the capacitor.
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From the IBIS file it appears that a PIO can sink/source 60 mA
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(typ) at 25 deg. C. The datasheet says that the maximum PIO DC
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current is 40 mA.
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*/
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#ifndef ADC_CHARGE_PIO
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#define ADC_CHARGE_PIO PIO_DEFINE(PORT_D, 5)
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#endif
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#ifndef ADC_CAPACITANCE
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#define ADC_CAPACITANCE 4.7e-9
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#endif
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#ifndef ADC_RESISTANCE
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#define ADC_RESISTANCE 37e3
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#endif
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#define ADC_TIME_CONSTANT_US (ADC_CAPACITANCE * ADC_RESISTANCE * 1e6)
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/* This is not defined in io32u2.h */
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#ifndef ACMUX
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#define ACMUX _SFR_MEM8(0x7D)
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#endif
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void adc_init(void)
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{
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pio_config_set(ADC_CHARGE_PIO, PIO_OUTPUT_LOW);
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/* Disable digital input for AIN0. */
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DIDR1 |= BIT(0);
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/* By default the analog comparator is enabled but let's enable it. */
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ACSR &= BIT(7);
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}
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void adc_enable(uint8_t adc_channel)
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{
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/* Disable digital input for selected channel. */
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DIDR1 |= BIT(adc_channel);
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}
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void adc_disable(uint8_t adc_channel)
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{
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/* Enable digital input for selected channel. */
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DIDR1 &= ~BIT(adc_channel);
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}
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uint8_t adc_measure(uint8_t adc_channel)
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{
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uint8_t count;
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count = 0;
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/* Select desired channel. */
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ACMUX = adc_channel - 1;
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pio_output_high (ADC_CHARGE_PIO);
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while (! (ACSR & BIT(ACO)))
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count++;
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pio_output_low (ADC_CHARGE_PIO);
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return count;
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}
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#ifndef ADC_H
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#define ADC_H
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#include "system.h"
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void adc_init(void);
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void adc_enable(uint8_t adc_channel);
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void adc_disable(uint8_t adc_channel);
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uint8_t adc_measure(uint8_t adc_channel);
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#endif
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# File: Makefile
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# Author: M. P. Hayes, UCECE
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# Date: 11 Sep 2010
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# Descr: Makefile for voltmeter1 docs
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# The scripts used to make the graphs require the program dot; this
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# is part of the graphviz package.
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DEL = rm
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all: file_dependencies.pdf module_dependencies.pdf makefile_dependencies.pdf build_dependencies.pdf callgraph.pdf
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file_dependencies.pdf: files.d
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../../../etc/graphdeps.py $< --out $@
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module_dependencies.pdf: modules.d
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../../../etc/graphdeps.py $< --modules --rotate --out $@
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makefile_dependencies.pdf: ../Makefile
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../../../etc/graphdeps.py $< --out $@
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build_dependencies.pdf: ../Makefile
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../../../etc/graphdeps.py $< --out $@ --showops
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callgraph.pdf: callgraph.d
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../../../etc/graphdeps.py --calls --modules $< --out $@ --showops
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files.d: ../Makefile
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(cd ..; ../../etc/makemake.py --relpath --files . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/files.d)
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modules.d: ../Makefile
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(cd ..; ../../etc/makemake.py --relpath --modules . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system > doc/modules.d)
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callgraph.d: ../Makefile
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(cd ..; ../../etc/makemake.py --cc="avr-gcc" --cflags="-Os -mmcu=atmega32u2" --relpath --calls . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/callgraph.d)
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# Clean: delete derived files.
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.PHONY: clean
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clean:
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-$(DEL) *.d *.pdf
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Running make in this directory will generate a number of PDF graphs.
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In the callgraph, the arrows means "calls". In the dependency graphs,
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the arrows means "requires" (or "depends upon").
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callgraph.pdf This shows the callgraph, i.e., what functions each
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function in the program calls.
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module_dependencies.pdf This shows the dependencies between the modules.
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file_dependencies.pdf This shows the dependencies between the files.
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makefile_dependencies.pdf This shows the dependencies required by make when
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building the program.
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build_dependencies.pdf This is like makefile_dependencies.pdf but shows
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the operations performed to generate the new file.
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callgraph.d This shows the callgraph in text format.
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files.d This shows the file dependencies in text format.
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modules.d This shows the module dependencies in text format.
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Binary file not shown.
@ -0,0 +1,80 @@
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system_clock_init@system.c:
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system_watchdog_timer_init@system.c:
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system_init@system.c: system_clock_init system_watchdog_timer_init
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pio_config_set@pio.c:
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ledmat_init@ledmat.c: pio_config_set pio_config_set
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display_clear@display.c:
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display_init@display.c: ledmat_init display_clear
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tinygl_text_speed_set@tinygl.c:
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tinygl_clear@tinygl.c: display_clear
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tinygl_init@tinygl.c: display_init tinygl_text_speed_set tinygl_clear
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tinygl_font_set@tinygl.c:
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tinygl_text_mode_set@tinygl.c:
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tinygl_text_dir_set@tinygl.c:
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display_task_init@voltmeter1.c: tinygl_init tinygl_font_set tinygl_text_mode_set tinygl_text_dir_set
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adc_init@adc.c: pio_config_set
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adc_enable@adc.c:
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adc_task_init@voltmeter1.c: adc_init adc_enable
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timer_init@timer.c:
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timer_get@timer.c:
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timer_wait_until@timer.c: timer_get
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task_schedule@task.c: timer_init timer_get timer_wait_until timer_get
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tinygl_point@tinygl.c:
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font_pixel_get@font.c:
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tinygl_font_pixel_get@tinygl.c: font_pixel_get
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display_pixel_set@display.c:
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tinygl_draw_point@tinygl.c: display_pixel_set
|
||||||
|
|
||||||
|
tinygl_draw_char@tinygl.c: tinygl_point tinygl_font_pixel_get tinygl_draw_point tinygl_point tinygl_draw_point tinygl_point tinygl_font_pixel_get tinygl_draw_point tinygl_point tinygl_draw_point
|
||||||
|
|
||||||
|
tinygl_draw_string@tinygl.c: tinygl_draw_char
|
||||||
|
|
||||||
|
tinygl_text_advance@tinygl.c: tinygl_draw_string tinygl_draw_string
|
||||||
|
|
||||||
|
pio_output_high@pio.c:
|
||||||
|
|
||||||
|
pio_output_low@pio.c:
|
||||||
|
|
||||||
|
ledmat_display_column@ledmat.c: pio_output_high pio_output_low pio_output_high pio_output_low
|
||||||
|
|
||||||
|
display_update@display.c: ledmat_display_column
|
||||||
|
|
||||||
|
tinygl_update@tinygl.c: tinygl_text_advance display_update
|
||||||
|
|
||||||
|
display_task@voltmeter1.c: tinygl_update
|
||||||
|
|
||||||
|
adc_measure@adc.c: pio_output_high pio_output_low
|
||||||
|
|
||||||
|
tinygl_draw_message@tinygl.c: strncpy strlen
|
||||||
|
|
||||||
|
tinygl_text@tinygl.c: tinygl_draw_message
|
||||||
|
|
||||||
|
adc_task@voltmeter1.c: adc_measure tinygl_text
|
||||||
|
|
||||||
|
main@voltmeter1.c: system_init display_task_init adc_task_init task_schedule @display_task @adc_task
|
||||||
|
|
||||||
Binary file not shown.
Binary file not shown.
@ -0,0 +1,62 @@
|
|||||||
|
../../drivers/avr/timer.h:
|
||||||
|
|
||||||
|
../../drivers/avr/timer.c: ../../drivers/avr/timer.h
|
||||||
|
|
||||||
|
../../drivers/avr/timer.o: ../../drivers/avr/timer.c
|
||||||
|
|
||||||
|
../../drivers/avr/system.c:
|
||||||
|
|
||||||
|
../../drivers/avr/system.o: ../../drivers/avr/system.c
|
||||||
|
|
||||||
|
../../utils/task.h: ../../drivers/avr/timer.h
|
||||||
|
|
||||||
|
../../drivers/display.h:
|
||||||
|
|
||||||
|
../../utils/font.h:
|
||||||
|
|
||||||
|
../../utils/tinygl.h: ../../drivers/display.h ../../utils/font.h
|
||||||
|
|
||||||
|
adc.h:
|
||||||
|
|
||||||
|
../../fonts/font3x5_1.h: ../../utils/font.h
|
||||||
|
|
||||||
|
voltmeter1.c: ../../utils/task.h ../../utils/tinygl.h adc.h ../../fonts/font3x5_1.h
|
||||||
|
|
||||||
|
voltmeter1.o: voltmeter1.c
|
||||||
|
|
||||||
|
../../utils/font.c: ../../utils/font.h
|
||||||
|
|
||||||
|
../../utils/font.o: ../../utils/font.c
|
||||||
|
|
||||||
|
../../drivers/avr/pio.h:
|
||||||
|
|
||||||
|
../../drivers/avr/delay.h:
|
||||||
|
|
||||||
|
adc.c: ../../drivers/avr/pio.h ../../drivers/avr/delay.h adc.h
|
||||||
|
|
||||||
|
adc.o: adc.c
|
||||||
|
|
||||||
|
../../drivers/avr/pio.c: ../../drivers/avr/pio.h
|
||||||
|
|
||||||
|
../../drivers/avr/pio.o: ../../drivers/avr/pio.c
|
||||||
|
|
||||||
|
../../drivers/ledmat.h:
|
||||||
|
|
||||||
|
../../drivers/display.c: ../../drivers/ledmat.h ../../drivers/display.h
|
||||||
|
|
||||||
|
../../drivers/display.o: ../../drivers/display.c
|
||||||
|
|
||||||
|
../../drivers/ledmat.c: ../../drivers/avr/pio.h ../../drivers/ledmat.h
|
||||||
|
|
||||||
|
../../drivers/ledmat.o: ../../drivers/ledmat.c
|
||||||
|
|
||||||
|
../../utils/tinygl.c: ../../utils/tinygl.h ../../drivers/display.h ../../utils/font.h
|
||||||
|
|
||||||
|
../../utils/tinygl.o: ../../utils/tinygl.c
|
||||||
|
|
||||||
|
../../utils/task.c: ../../utils/task.h ../../drivers/avr/timer.h
|
||||||
|
|
||||||
|
../../utils/task.o: ../../utils/task.c
|
||||||
|
|
||||||
|
voltmeter1.out: ../../drivers/avr/timer.o ../../drivers/avr/system.o voltmeter1.o ../../utils/font.o adc.o ../../drivers/avr/pio.o ../../drivers/display.o ../../drivers/ledmat.o ../../utils/tinygl.o ../../utils/task.o
|
||||||
|
|
||||||
Binary file not shown.
Binary file not shown.
@ -0,0 +1,18 @@
|
|||||||
|
timer:
|
||||||
|
|
||||||
|
task: timer
|
||||||
|
|
||||||
|
pio:
|
||||||
|
|
||||||
|
ledmat: pio
|
||||||
|
|
||||||
|
display: ledmat
|
||||||
|
|
||||||
|
font:
|
||||||
|
|
||||||
|
tinygl: display font
|
||||||
|
|
||||||
|
adc: pio
|
||||||
|
|
||||||
|
voltmeter1: task tinygl adc
|
||||||
|
|
||||||
@ -0,0 +1,76 @@
|
|||||||
|
/** @file voltmeter1.c
|
||||||
|
@author M. P. Hayes, UCECE
|
||||||
|
@date 1 February 2013
|
||||||
|
@brief Simple message display program
|
||||||
|
|
||||||
|
@defgroup voltmeter1 Simple voltmeter
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "system.h"
|
||||||
|
#include "task.h"
|
||||||
|
#include "tinygl.h"
|
||||||
|
#include "adc.h"
|
||||||
|
#include "../fonts/font3x5_1.h"
|
||||||
|
|
||||||
|
|
||||||
|
/* Define polling rates in Hz. */
|
||||||
|
#define DISPLAY_TASK_RATE 250
|
||||||
|
|
||||||
|
#define ADC_TASK_RATE 1
|
||||||
|
|
||||||
|
#define ADC_AIN 3
|
||||||
|
|
||||||
|
|
||||||
|
static void adc_task_init (void)
|
||||||
|
{
|
||||||
|
adc_init ();
|
||||||
|
adc_enable (ADC_AIN);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void adc_task (__unused__ void *data)
|
||||||
|
{
|
||||||
|
uint8_t count;
|
||||||
|
char str[3];
|
||||||
|
|
||||||
|
count = adc_measure (ADC_AIN);
|
||||||
|
|
||||||
|
str[0] = ((count / 10) % 10) + '0';
|
||||||
|
str[1] = (count % 10) + '0';
|
||||||
|
str[2] = 0;
|
||||||
|
|
||||||
|
tinygl_text (str);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void display_task_init (void)
|
||||||
|
{
|
||||||
|
tinygl_init (DISPLAY_TASK_RATE);
|
||||||
|
tinygl_font_set (&font3x5_1);
|
||||||
|
tinygl_text_mode_set (TINYGL_TEXT_MODE_STEP);
|
||||||
|
tinygl_text_dir_set (TINYGL_TEXT_DIR_ROTATE);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void display_task (__unused__ void *data)
|
||||||
|
{
|
||||||
|
tinygl_update ();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int main (void)
|
||||||
|
{
|
||||||
|
task_t tasks[] =
|
||||||
|
{
|
||||||
|
{.func = display_task, .period = TASK_RATE / DISPLAY_TASK_RATE},
|
||||||
|
{.func = adc_task, .period = TASK_RATE / ADC_TASK_RATE},
|
||||||
|
};
|
||||||
|
|
||||||
|
system_init ();
|
||||||
|
|
||||||
|
display_task_init ();
|
||||||
|
adc_task_init ();
|
||||||
|
|
||||||
|
task_schedule (tasks, ARRAY_SIZE (tasks));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Loading…
Reference in new issue