Michael Hayes
12 years ago
parent
b1504f548f
commit
b08d65aa23
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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 stars3
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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../../drivers/avr -I../../drivers -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: stars3.out
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# Compile: create object files from C source files.
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stars3.o: stars3.c ../../drivers/avr/system.h ../../drivers/display.h ../../utils/font.h ../../utils/pacer.h ../../utils/tinygl.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 $@
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pacer.o: ../../utils/pacer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h ../../utils/pacer.h
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$(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 $@
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# Link: create output file (executable) from object files.
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stars3.out: stars3.o pio.o system.o timer.o display.o ledmat.o font.o pacer.o tinygl.o
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$(CC) $(CFLAGS) $^ -o $@ -lm
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$(SIZE) $@
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# Create hex file for programming from executable file.
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stars3.hex: stars3.out
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$(OBJCOPY) -O ihex stars3.out stars3.hex
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# Target: clean project.
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.PHONY: clean
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clean:
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-$(DEL) *.o *.out *.hex
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# Target: program project.
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.PHONY: program
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program: stars3.hex
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dfu-programmer atmega32u2 erase; dfu-programmer atmega32u2 flash stars3.hex; dfu-programmer atmega32u2 start
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@ -0,0 +1,61 @@
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# File: Makefile
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# Author: M. P. Hayes, UCECE
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# Date: 11 Sep 2010
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# Descr: Makefile for stars3
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CC = gcc
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CFLAGS = -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/test -I../../drivers -I../../utils
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DEL = rm
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# Default target.
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all: stars3
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# Compile: create object files from C source files.
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stars3-test.o: stars3.c ../../drivers/display.h ../../drivers/test/system.h ../../utils/font.h ../../utils/pacer.h ../../utils/tinygl.h
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$(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 $@
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pacer-test.o: ../../utils/pacer.c ../../drivers/test/system.h ../../drivers/test/timer.h ../../utils/pacer.h
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$(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 $@
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# Link: create executable file from object files.
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stars3: stars3-test.o display-test.o ledmat-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o pacer-test.o tinygl-test.o
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$(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) stars3 stars3-test.o display-test.o ledmat-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o pacer-test.o tinygl-test.o
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@ -0,0 +1,45 @@
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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 led5 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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@ -0,0 +1,16 @@
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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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@ -0,0 +1,161 @@
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/** @file stars1.c
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@author M.P. Hayes
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@date 25 Sep 2013
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@brief Example of using pseudorandom numbers and controlling pixel
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brightness with PWM. Note, pseudorandom numbers follow the same
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sequence.
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*/
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#include <stdlib.h>
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#include "system.h"
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#include "pacer.h"
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#include "tinygl.h"
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/* This controls the range of luminance. A bigger number gives more dynamic range
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but requires a faster update rate. */
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#define LUMINANCE_STEPS 25
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/* This needs to be fast enough to prevent the eye noticing flicker.
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A lower value (say 5) is useful for flashing pixels. */
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#define PWM_RATE 40
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/* Number of twinkling stars. */
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#define NUM_STARS 10
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/* This is the rate (Hz) of luminance changes. */
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#define TWINKLE_RATE 5
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#define UPDATE_RATE (LUMINANCE_STEPS * PWM_RATE)
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#define LOOP_RATE (TINYGL_WIDTH * UPDATE_RATE)
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static void star_twinkle (uint8_t starmap[TINYGL_HEIGHT][TINYGL_WIDTH],
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uint8_t x, uint8_t y, int num_levels)
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{
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/* Check if star alive. */
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if (starmap[y][x] == 0)
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return;
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/* Change star luminance until it dies. */
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starmap[y][x]--;
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if (starmap[y][x] > 0)
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return;
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/* Create a new star at a point neighbouring the old one
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or at the same place. */
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while (1)
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{
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int8_t dx;
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int8_t dy;
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dx = (rand () % 3) - 1;
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dy = (rand () % 3) - 1;
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if (x + dx >= 0 && x + dx < TINYGL_WIDTH
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&& y + dy >= 0 && y + dy < TINYGL_HEIGHT
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&& starmap[y + dy][x + dx] == 0)
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{
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starmap[y + dy][x + dx] = num_levels - 1;
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return;
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}
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}
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}
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static void stars_twinkle (uint8_t starmap[TINYGL_HEIGHT][TINYGL_WIDTH],
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int num_levels)
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{
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uint8_t x;
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uint8_t y;
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for (x = 0; x < TINYGL_WIDTH; x++)
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{
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for (y = 0; y < TINYGL_HEIGHT; y++)
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{
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star_twinkle (starmap, x, y, num_levels);
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}
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}
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}
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static void stars_create (uint8_t starmap[TINYGL_HEIGHT][TINYGL_WIDTH],
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int num_levels)
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{
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uint8_t x;
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uint8_t y;
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uint8_t i;
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for (i = 0; i < NUM_STARS; i++)
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{
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/* Create new star, but not over a live one. */
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do
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{
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x = rand () % TINYGL_WIDTH;
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y = rand () % TINYGL_HEIGHT;
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} while (starmap[y][x]);
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starmap[y][x] = rand () % num_levels;
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}
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}
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int main (void)
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{
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uint16_t twinkle_tick = 0;
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uint8_t pwm_tick = 0;
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uint8_t x;
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uint8_t y;
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uint8_t col;
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/* This stores the current luminance level for each pixel. */
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uint8_t starmap[TINYGL_HEIGHT][TINYGL_WIDTH] = {{0, }};
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/* This controls the luminance levels. The maximum value
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of LUMINANCE_STEPS gives 100 percent duty cycle. */
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const uint8_t levels[] = {0, 1, 2, 4, 8, 15, 25, 15, 8, 4, 2, 1};
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system_init ();
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tinygl_init (LOOP_RATE);
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pacer_init (LOOP_RATE);
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stars_create (starmap, ARRAY_SIZE (levels));
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while (1)
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{
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/* Refresh starmap. */
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for (col = 0; col < TINYGL_WIDTH; col++)
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{
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pacer_wait ();
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tinygl_update ();
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}
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twinkle_tick++;
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if (twinkle_tick >= UPDATE_RATE / TWINKLE_RATE)
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{
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twinkle_tick = 0;
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/* Change luminance of stars until they die. Then create
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a new one nearby. */
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stars_twinkle (starmap, ARRAY_SIZE (levels));
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}
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/* Pulse width modulate pixels to control luminance. */
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for (x = 0; x < TINYGL_WIDTH; x++)
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{
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for (y = 0; y < TINYGL_HEIGHT; y++)
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{
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tinygl_draw_point (tinygl_point (x, y),
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levels[starmap[y][x]] > pwm_tick);
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}
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}
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pwm_tick++;
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if (pwm_tick >= UPDATE_RATE / PWM_RATE)
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{
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pwm_tick = 0;
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}
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}
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return 0;
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}
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