Michael Hayes
12 years ago
commit
3122dc5b50
@ -0,0 +1,65 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 12 Sep 2010
|
||||
# Descr: Makefile for ledpwm1
|
||||
|
||||
# Definitions.
|
||||
CC = avr-gcc
|
||||
CFLAGS = -mmcu=atmega32u2 -Os -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/avr -I../../drivers -I../../utils
|
||||
OBJCOPY = avr-objcopy
|
||||
SIZE = avr-size
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: ledpwm1.out
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
ledpwm1.o: ledpwm1.c ../../drivers/avr/system.h ../../drivers/led.h ../../utils/pacer.h ../../utils/spwm.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio.o: ../../drivers/avr/pio.c ../../drivers/avr/pio.h ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system.o: ../../drivers/avr/system.c ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer.o: ../../drivers/avr/timer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
led.o: ../../drivers/led.c ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../drivers/led.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer.o: ../../utils/pacer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
spwm.o: ../../utils/spwm.c ../../drivers/avr/system.h ../../utils/spwm.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create output file (executable) from object files.
|
||||
ledpwm1.out: ledpwm1.o pio.o system.o timer.o led.o pacer.o spwm.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lm
|
||||
$(SIZE) $@
|
||||
|
||||
|
||||
# Create hex file for programming from executable file.
|
||||
ledpwm1.hex: ledpwm1.out
|
||||
$(OBJCOPY) -O ihex ledpwm1.out ledpwm1.hex
|
||||
|
||||
|
||||
# Target: clean project.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.o *.out *.hex
|
||||
|
||||
|
||||
# Target: program project.
|
||||
.PHONY: program
|
||||
program: ledpwm1.hex
|
||||
dfu-programmer atmega32u2 erase; dfu-programmer atmega32u2 flash ledpwm1.hex; dfu-programmer atmega32u2 start
|
||||
|
||||
|
||||
@ -0,0 +1,55 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for ledpwm1
|
||||
|
||||
CC = gcc
|
||||
CFLAGS = -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/test -I../../drivers -I../../utils
|
||||
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: ledpwm1
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
ledpwm1-test.o: ledpwm1.c ../../drivers/led.h ../../drivers/test/system.h ../../utils/pacer.h ../../utils/spwm.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
led-test.o: ../../drivers/led.c ../../drivers/led.h ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
mgetkey-test.o: ../../drivers/test/mgetkey.c ../../drivers/test/mgetkey.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio-test.o: ../../drivers/test/pio.c ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system-test.o: ../../drivers/test/system.c ../../drivers/test/avrtest.h ../../drivers/test/mgetkey.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer-test.o: ../../drivers/test/timer.c ../../drivers/test/system.h ../../drivers/test/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer-test.o: ../../utils/pacer.c ../../drivers/test/system.h ../../drivers/test/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
spwm-test.o: ../../utils/spwm.c ../../drivers/test/system.h ../../utils/spwm.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create executable file from object files.
|
||||
ledpwm1: ledpwm1-test.o led-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o pacer-test.o spwm-test.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lrt
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) ledpwm1 ledpwm1-test.o led-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o pacer-test.o spwm-test.o
|
||||
|
||||
|
||||
|
||||
@ -0,0 +1,45 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for led5 docs
|
||||
|
||||
# The scripts used to make the graphs require the program dot; this
|
||||
# is part of the graphviz package.
|
||||
|
||||
DEL = rm
|
||||
|
||||
all: file_dependencies.pdf module_dependencies.pdf makefile_dependencies.pdf build_dependencies.pdf callgraph.pdf
|
||||
|
||||
file_dependencies.pdf: files.d
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
module_dependencies.pdf: modules.d
|
||||
../../../etc/graphdeps.py $< --modules --rotate --out $@
|
||||
|
||||
makefile_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
build_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@ --showops
|
||||
|
||||
callgraph.pdf: callgraph.d
|
||||
../../../etc/graphdeps.py --calls --modules $< --out $@ --showops
|
||||
|
||||
|
||||
files.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --files . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/files.d)
|
||||
|
||||
|
||||
modules.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --modules . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system > doc/modules.d)
|
||||
|
||||
|
||||
callgraph.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --cc="avr-gcc" --cflags="-Os -mmcu=atmega32u2" --relpath --calls . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/callgraph.d)
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.d *.pdf
|
||||
|
||||
@ -0,0 +1,16 @@
|
||||
Running make in this directory will generate a number of PDF graphs.
|
||||
In the callgraph, the arrows means "calls". In the dependency graphs,
|
||||
the arrows means "requires" (or "depends upon").
|
||||
|
||||
callgraph.pdf This shows the callgraph, i.e., what functions each
|
||||
function in the program calls.
|
||||
module_dependencies.pdf This shows the dependencies between the modules.
|
||||
file_dependencies.pdf This shows the dependencies between the files.
|
||||
makefile_dependencies.pdf This shows the dependencies required by make when
|
||||
building the program.
|
||||
build_dependencies.pdf This is like makefile_dependencies.pdf but shows
|
||||
the operations performed to generate the new file.
|
||||
|
||||
callgraph.d This shows the callgraph in text format.
|
||||
files.d This shows the file dependencies in text format.
|
||||
modules.d This shows the module dependencies in text format.
|
||||
@ -0,0 +1,31 @@
|
||||
/** @file ledpwm1.c
|
||||
@author M.P. Hayes
|
||||
@date 25 Sep 2013
|
||||
*/
|
||||
|
||||
#include "system.h"
|
||||
#include "pacer.h"
|
||||
#include "led.h"
|
||||
#include "spwm.h"
|
||||
|
||||
#define LOOP_RATE 100
|
||||
|
||||
|
||||
int main (void)
|
||||
{
|
||||
spwm_t spwm1 = {.duty = 50, .period = 100};
|
||||
|
||||
system_init ();
|
||||
|
||||
led_init ();
|
||||
|
||||
pacer_init (LOOP_RATE);
|
||||
|
||||
while (1)
|
||||
{
|
||||
pacer_wait ();
|
||||
|
||||
led_set (LED1, spwm_update (&spwm1));
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,74 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 12 Sep 2010
|
||||
# Descr: Makefile for random1
|
||||
|
||||
# Definitions.
|
||||
CC = avr-gcc
|
||||
CFLAGS = -mmcu=atmega32u2 -Os -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/avr -I../../drivers -I../../utils
|
||||
OBJCOPY = avr-objcopy
|
||||
SIZE = avr-size
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: random1.out
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
random1.o: random1.c ../../drivers/avr/system.h ../../drivers/display.h ../../drivers/navswitch.h ../../utils/font.h ../../utils/pacer.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio.o: ../../drivers/avr/pio.c ../../drivers/avr/pio.h ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system.o: ../../drivers/avr/system.c ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer.o: ../../drivers/avr/timer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
display.o: ../../drivers/display.c ../../drivers/avr/system.h ../../drivers/display.h ../../drivers/ledmat.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
ledmat.o: ../../drivers/ledmat.c ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../drivers/ledmat.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
navswitch.o: ../../drivers/navswitch.c ../../drivers/avr/delay.h ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../drivers/navswitch.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
font.o: ../../utils/font.c ../../drivers/avr/system.h ../../utils/font.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer.o: ../../utils/pacer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
tinygl.o: ../../utils/tinygl.c ../../drivers/avr/system.h ../../drivers/display.h ../../utils/font.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create output file (executable) from object files.
|
||||
random1.out: random1.o pio.o system.o timer.o display.o ledmat.o navswitch.o font.o pacer.o tinygl.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lm
|
||||
$(SIZE) $@
|
||||
|
||||
|
||||
# Create hex file for programming from executable file.
|
||||
random1.hex: random1.out
|
||||
$(OBJCOPY) -O ihex random1.out random1.hex
|
||||
|
||||
|
||||
# Target: clean project.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.o *.out *.hex
|
||||
|
||||
|
||||
# Target: program project.
|
||||
.PHONY: program
|
||||
program: random1.hex
|
||||
dfu-programmer atmega32u2 erase; dfu-programmer atmega32u2 flash random1.hex; dfu-programmer atmega32u2 start
|
||||
|
||||
|
||||
@ -0,0 +1,64 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for random1
|
||||
|
||||
CC = gcc
|
||||
CFLAGS = -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/test -I../../drivers -I../../utils
|
||||
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: random1
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
random1-test.o: random1.c ../../drivers/display.h ../../drivers/navswitch.h ../../drivers/test/system.h ../../utils/font.h ../../utils/pacer.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
display-test.o: ../../drivers/display.c ../../drivers/display.h ../../drivers/ledmat.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
ledmat-test.o: ../../drivers/ledmat.c ../../drivers/ledmat.h ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
navswitch-test.o: ../../drivers/navswitch.c ../../drivers/navswitch.h ../../drivers/test/avrtest.h ../../drivers/test/delay.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
mgetkey-test.o: ../../drivers/test/mgetkey.c ../../drivers/test/mgetkey.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio-test.o: ../../drivers/test/pio.c ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system-test.o: ../../drivers/test/system.c ../../drivers/test/avrtest.h ../../drivers/test/mgetkey.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer-test.o: ../../drivers/test/timer.c ../../drivers/test/system.h ../../drivers/test/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
font-test.o: ../../utils/font.c ../../drivers/test/system.h ../../utils/font.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer-test.o: ../../utils/pacer.c ../../drivers/test/system.h ../../drivers/test/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
tinygl-test.o: ../../utils/tinygl.c ../../drivers/display.h ../../drivers/test/system.h ../../utils/font.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create executable file from object files.
|
||||
random1: random1-test.o display-test.o ledmat-test.o navswitch-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o pacer-test.o tinygl-test.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lrt
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) random1 random1-test.o display-test.o ledmat-test.o navswitch-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o pacer-test.o tinygl-test.o
|
||||
|
||||
|
||||
|
||||
@ -0,0 +1,45 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for led5 docs
|
||||
|
||||
# The scripts used to make the graphs require the program dot; this
|
||||
# is part of the graphviz package.
|
||||
|
||||
DEL = rm
|
||||
|
||||
all: file_dependencies.pdf module_dependencies.pdf makefile_dependencies.pdf build_dependencies.pdf callgraph.pdf
|
||||
|
||||
file_dependencies.pdf: files.d
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
module_dependencies.pdf: modules.d
|
||||
../../../etc/graphdeps.py $< --modules --rotate --out $@
|
||||
|
||||
makefile_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
build_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@ --showops
|
||||
|
||||
callgraph.pdf: callgraph.d
|
||||
../../../etc/graphdeps.py --calls --modules $< --out $@ --showops
|
||||
|
||||
|
||||
files.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --files . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/files.d)
|
||||
|
||||
|
||||
modules.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --modules . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system > doc/modules.d)
|
||||
|
||||
|
||||
callgraph.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --cc="avr-gcc" --cflags="-Os -mmcu=atmega32u2" --relpath --calls . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/callgraph.d)
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.d *.pdf
|
||||
|
||||
@ -0,0 +1,16 @@
|
||||
Running make in this directory will generate a number of PDF graphs.
|
||||
In the callgraph, the arrows means "calls". In the dependency graphs,
|
||||
the arrows means "requires" (or "depends upon").
|
||||
|
||||
callgraph.pdf This shows the callgraph, i.e., what functions each
|
||||
function in the program calls.
|
||||
module_dependencies.pdf This shows the dependencies between the modules.
|
||||
file_dependencies.pdf This shows the dependencies between the files.
|
||||
makefile_dependencies.pdf This shows the dependencies required by make when
|
||||
building the program.
|
||||
build_dependencies.pdf This is like makefile_dependencies.pdf but shows
|
||||
the operations performed to generate the new file.
|
||||
|
||||
callgraph.d This shows the callgraph in text format.
|
||||
files.d This shows the file dependencies in text format.
|
||||
modules.d This shows the module dependencies in text format.
|
||||
@ -0,0 +1,59 @@
|
||||
/** @file random1.c
|
||||
@author M.P. Hayes
|
||||
@date 25 Sep 2013
|
||||
@brief Example to show how pseudorandom numbers follow the same
|
||||
sequence.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "system.h"
|
||||
#include "pacer.h"
|
||||
#include "tinygl.h"
|
||||
#include "navswitch.h"
|
||||
#include "../fonts/font5x7_1.h"
|
||||
|
||||
#define LOOP_RATE 10000
|
||||
|
||||
#define NAVSWITCH_RATE 20
|
||||
|
||||
|
||||
int main (void)
|
||||
{
|
||||
uint16_t navswitch_tick = 0;
|
||||
|
||||
system_init ();
|
||||
|
||||
navswitch_init ();
|
||||
|
||||
tinygl_init (LOOP_RATE);
|
||||
tinygl_font_set (&font5x7_1);
|
||||
|
||||
pacer_init (LOOP_RATE);
|
||||
|
||||
tinygl_draw_char ('*', tinygl_point (0, 0));
|
||||
|
||||
while (1)
|
||||
{
|
||||
pacer_wait ();
|
||||
|
||||
tinygl_update ();
|
||||
|
||||
navswitch_tick++;
|
||||
if (navswitch_tick >= LOOP_RATE / NAVSWITCH_RATE)
|
||||
{
|
||||
navswitch_tick = 0;
|
||||
|
||||
navswitch_update ();
|
||||
|
||||
if (navswitch_push_event_p (NAVSWITCH_PUSH))
|
||||
{
|
||||
char c;
|
||||
|
||||
c = (rand () % 26) + 'A';
|
||||
|
||||
tinygl_draw_char (c, tinygl_point (0, 0));
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,74 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 12 Sep 2010
|
||||
# Descr: Makefile for random2
|
||||
|
||||
# Definitions.
|
||||
CC = avr-gcc
|
||||
CFLAGS = -mmcu=atmega32u2 -Os -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/avr -I../../drivers -I../../utils
|
||||
OBJCOPY = avr-objcopy
|
||||
SIZE = avr-size
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: random2.out
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
random2.o: random2.c ../../drivers/avr/system.h ../../drivers/display.h ../../drivers/navswitch.h ../../utils/font.h ../../utils/pacer.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio.o: ../../drivers/avr/pio.c ../../drivers/avr/pio.h ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system.o: ../../drivers/avr/system.c ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer.o: ../../drivers/avr/timer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
display.o: ../../drivers/display.c ../../drivers/avr/system.h ../../drivers/display.h ../../drivers/ledmat.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
ledmat.o: ../../drivers/ledmat.c ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../drivers/ledmat.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
navswitch.o: ../../drivers/navswitch.c ../../drivers/avr/delay.h ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../drivers/navswitch.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
font.o: ../../utils/font.c ../../drivers/avr/system.h ../../utils/font.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer.o: ../../utils/pacer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
tinygl.o: ../../utils/tinygl.c ../../drivers/avr/system.h ../../drivers/display.h ../../utils/font.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create output file (executable) from object files.
|
||||
random2.out: random2.o pio.o system.o timer.o display.o ledmat.o navswitch.o font.o pacer.o tinygl.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lm
|
||||
$(SIZE) $@
|
||||
|
||||
|
||||
# Create hex file for programming from executable file.
|
||||
random2.hex: random2.out
|
||||
$(OBJCOPY) -O ihex random2.out random2.hex
|
||||
|
||||
|
||||
# Target: clean project.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.o *.out *.hex
|
||||
|
||||
|
||||
# Target: program project.
|
||||
.PHONY: program
|
||||
program: random2.hex
|
||||
dfu-programmer atmega32u2 erase; dfu-programmer atmega32u2 flash random2.hex; dfu-programmer atmega32u2 start
|
||||
|
||||
|
||||
@ -0,0 +1,64 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for random2
|
||||
|
||||
CC = gcc
|
||||
CFLAGS = -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/test -I../../drivers -I../../utils
|
||||
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: random2
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
random2-test.o: random2.c ../../drivers/display.h ../../drivers/navswitch.h ../../drivers/test/system.h ../../utils/font.h ../../utils/pacer.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
display-test.o: ../../drivers/display.c ../../drivers/display.h ../../drivers/ledmat.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
ledmat-test.o: ../../drivers/ledmat.c ../../drivers/ledmat.h ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
navswitch-test.o: ../../drivers/navswitch.c ../../drivers/navswitch.h ../../drivers/test/avrtest.h ../../drivers/test/delay.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
mgetkey-test.o: ../../drivers/test/mgetkey.c ../../drivers/test/mgetkey.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio-test.o: ../../drivers/test/pio.c ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system-test.o: ../../drivers/test/system.c ../../drivers/test/avrtest.h ../../drivers/test/mgetkey.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer-test.o: ../../drivers/test/timer.c ../../drivers/test/system.h ../../drivers/test/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
font-test.o: ../../utils/font.c ../../drivers/test/system.h ../../utils/font.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer-test.o: ../../utils/pacer.c ../../drivers/test/system.h ../../drivers/test/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
tinygl-test.o: ../../utils/tinygl.c ../../drivers/display.h ../../drivers/test/system.h ../../utils/font.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create executable file from object files.
|
||||
random2: random2-test.o display-test.o ledmat-test.o navswitch-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o pacer-test.o tinygl-test.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lrt
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) random2 random2-test.o display-test.o ledmat-test.o navswitch-test.o mgetkey-test.o pio-test.o system-test.o timer-test.o font-test.o pacer-test.o tinygl-test.o
|
||||
|
||||
|
||||
|
||||
@ -0,0 +1,45 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for led5 docs
|
||||
|
||||
# The scripts used to make the graphs require the program dot; this
|
||||
# is part of the graphviz package.
|
||||
|
||||
DEL = rm
|
||||
|
||||
all: file_dependencies.pdf module_dependencies.pdf makefile_dependencies.pdf build_dependencies.pdf callgraph.pdf
|
||||
|
||||
file_dependencies.pdf: files.d
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
module_dependencies.pdf: modules.d
|
||||
../../../etc/graphdeps.py $< --modules --rotate --out $@
|
||||
|
||||
makefile_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
build_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@ --showops
|
||||
|
||||
callgraph.pdf: callgraph.d
|
||||
../../../etc/graphdeps.py --calls --modules $< --out $@ --showops
|
||||
|
||||
|
||||
files.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --files . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/files.d)
|
||||
|
||||
|
||||
modules.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --modules . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system > doc/modules.d)
|
||||
|
||||
|
||||
callgraph.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --cc="avr-gcc" --cflags="-Os -mmcu=atmega32u2" --relpath --calls . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/callgraph.d)
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.d *.pdf
|
||||
|
||||
@ -0,0 +1,16 @@
|
||||
Running make in this directory will generate a number of PDF graphs.
|
||||
In the callgraph, the arrows means "calls". In the dependency graphs,
|
||||
the arrows means "requires" (or "depends upon").
|
||||
|
||||
callgraph.pdf This shows the callgraph, i.e., what functions each
|
||||
function in the program calls.
|
||||
module_dependencies.pdf This shows the dependencies between the modules.
|
||||
file_dependencies.pdf This shows the dependencies between the files.
|
||||
makefile_dependencies.pdf This shows the dependencies required by make when
|
||||
building the program.
|
||||
build_dependencies.pdf This is like makefile_dependencies.pdf but shows
|
||||
the operations performed to generate the new file.
|
||||
|
||||
callgraph.d This shows the callgraph in text format.
|
||||
files.d This shows the file dependencies in text format.
|
||||
modules.d This shows the module dependencies in text format.
|
||||
@ -0,0 +1,66 @@
|
||||
/** @file random2.c
|
||||
@author M.P. Hayes
|
||||
@date 25 Sep 2013
|
||||
@brief Example to show how pseudorandom sequence can be changed by reseeding
|
||||
the pseudorandom number generator.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "system.h"
|
||||
#include "pacer.h"
|
||||
#include "tinygl.h"
|
||||
#include "navswitch.h"
|
||||
#include "../fonts/font5x7_1.h"
|
||||
|
||||
#define LOOP_RATE 10000
|
||||
|
||||
#define NAVSWITCH_RATE 20
|
||||
|
||||
|
||||
int main (void)
|
||||
{
|
||||
uint16_t navswitch_tick = 0;
|
||||
uint16_t count = 0;
|
||||
|
||||
system_init ();
|
||||
|
||||
navswitch_init ();
|
||||
|
||||
tinygl_init (LOOP_RATE);
|
||||
tinygl_font_set (&font5x7_1);
|
||||
|
||||
pacer_init (LOOP_RATE);
|
||||
|
||||
tinygl_draw_char ('*', tinygl_point (0, 0));
|
||||
|
||||
while (1)
|
||||
{
|
||||
pacer_wait ();
|
||||
|
||||
tinygl_update ();
|
||||
|
||||
count++;
|
||||
|
||||
navswitch_tick++;
|
||||
if (navswitch_tick >= LOOP_RATE / NAVSWITCH_RATE)
|
||||
{
|
||||
navswitch_tick = 0;
|
||||
|
||||
navswitch_update ();
|
||||
|
||||
if (navswitch_push_event_p (NAVSWITCH_PUSH))
|
||||
{
|
||||
char c;
|
||||
|
||||
c = (rand () % 26) + 'A';
|
||||
|
||||
tinygl_draw_char (c, tinygl_point (0, 0));
|
||||
|
||||
/* Reseed the pseudorandom number generator based on the
|
||||
number of iterations of the paced loop. */
|
||||
srand (count);
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,74 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 12 Sep 2010
|
||||
# Descr: Makefile for stars1
|
||||
|
||||
# Definitions.
|
||||
CC = avr-gcc
|
||||
CFLAGS = -mmcu=atmega32u2 -Os -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/avr -I../../drivers -I../../utils
|
||||
OBJCOPY = avr-objcopy
|
||||
SIZE = avr-size
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: stars1.out
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
stars1.o: stars1.c ../../drivers/avr/system.h ../../drivers/display.h ../../utils/font.h ../../utils/pacer.h ../../utils/spwm.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio.o: ../../drivers/avr/pio.c ../../drivers/avr/pio.h ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system.o: ../../drivers/avr/system.c ../../drivers/avr/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer.o: ../../drivers/avr/timer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
display.o: ../../drivers/display.c ../../drivers/avr/system.h ../../drivers/display.h ../../drivers/ledmat.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
ledmat.o: ../../drivers/ledmat.c ../../drivers/avr/pio.h ../../drivers/avr/system.h ../../drivers/ledmat.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
font.o: ../../utils/font.c ../../drivers/avr/system.h ../../utils/font.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer.o: ../../utils/pacer.c ../../drivers/avr/system.h ../../drivers/avr/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
spwm.o: ../../utils/spwm.c ../../drivers/avr/system.h ../../utils/spwm.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
tinygl.o: ../../utils/tinygl.c ../../drivers/avr/system.h ../../drivers/display.h ../../utils/font.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create output file (executable) from object files.
|
||||
stars1.out: stars1.o pio.o system.o timer.o display.o ledmat.o font.o pacer.o spwm.o tinygl.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lm
|
||||
$(SIZE) $@
|
||||
|
||||
|
||||
# Create hex file for programming from executable file.
|
||||
stars1.hex: stars1.out
|
||||
$(OBJCOPY) -O ihex stars1.out stars1.hex
|
||||
|
||||
|
||||
# Target: clean project.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.o *.out *.hex
|
||||
|
||||
|
||||
# Target: program project.
|
||||
.PHONY: program
|
||||
program: stars1.hex
|
||||
dfu-programmer atmega32u2 erase; dfu-programmer atmega32u2 flash stars1.hex; dfu-programmer atmega32u2 start
|
||||
|
||||
|
||||
@ -0,0 +1,64 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for stars1
|
||||
|
||||
CC = gcc
|
||||
CFLAGS = -Wall -Wstrict-prototypes -Wextra -g -I../../drivers/test -I../../drivers -I../../utils
|
||||
|
||||
DEL = rm
|
||||
|
||||
|
||||
# Default target.
|
||||
all: stars1
|
||||
|
||||
|
||||
# Compile: create object files from C source files.
|
||||
stars1-test.o: stars1.c ../../drivers/display.h ../../drivers/test/system.h ../../utils/font.h ../../utils/pacer.h ../../utils/spwm.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
display-test.o: ../../drivers/display.c ../../drivers/display.h ../../drivers/ledmat.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
ledmat-test.o: ../../drivers/ledmat.c ../../drivers/ledmat.h ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
mgetkey-test.o: ../../drivers/test/mgetkey.c ../../drivers/test/mgetkey.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pio-test.o: ../../drivers/test/pio.c ../../drivers/test/avrtest.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
system-test.o: ../../drivers/test/system.c ../../drivers/test/avrtest.h ../../drivers/test/mgetkey.h ../../drivers/test/pio.h ../../drivers/test/system.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
timer-test.o: ../../drivers/test/timer.c ../../drivers/test/system.h ../../drivers/test/timer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
font-test.o: ../../utils/font.c ../../drivers/test/system.h ../../utils/font.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
pacer-test.o: ../../utils/pacer.c ../../drivers/test/system.h ../../drivers/test/timer.h ../../utils/pacer.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
spwm-test.o: ../../utils/spwm.c ../../drivers/test/system.h ../../utils/spwm.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
tinygl-test.o: ../../utils/tinygl.c ../../drivers/display.h ../../drivers/test/system.h ../../utils/font.h ../../utils/tinygl.h
|
||||
$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
|
||||
|
||||
|
||||
# Link: create executable file from object files.
|
||||
stars1: stars1-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 spwm-test.o tinygl-test.o
|
||||
$(CC) $(CFLAGS) $^ -o $@ -lrt
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) stars1 stars1-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 spwm-test.o tinygl-test.o
|
||||
|
||||
|
||||
|
||||
@ -0,0 +1,45 @@
|
||||
# File: Makefile
|
||||
# Author: M. P. Hayes, UCECE
|
||||
# Date: 11 Sep 2010
|
||||
# Descr: Makefile for led5 docs
|
||||
|
||||
# The scripts used to make the graphs require the program dot; this
|
||||
# is part of the graphviz package.
|
||||
|
||||
DEL = rm
|
||||
|
||||
all: file_dependencies.pdf module_dependencies.pdf makefile_dependencies.pdf build_dependencies.pdf callgraph.pdf
|
||||
|
||||
file_dependencies.pdf: files.d
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
module_dependencies.pdf: modules.d
|
||||
../../../etc/graphdeps.py $< --modules --rotate --out $@
|
||||
|
||||
makefile_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@
|
||||
|
||||
build_dependencies.pdf: ../Makefile
|
||||
../../../etc/graphdeps.py $< --out $@ --showops
|
||||
|
||||
callgraph.pdf: callgraph.d
|
||||
../../../etc/graphdeps.py --calls --modules $< --out $@ --showops
|
||||
|
||||
|
||||
files.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --files . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/files.d)
|
||||
|
||||
|
||||
modules.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --relpath --modules . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system > doc/modules.d)
|
||||
|
||||
|
||||
callgraph.d: ../Makefile
|
||||
(cd ..; ../../etc/makemake.py --cc="avr-gcc" --cflags="-Os -mmcu=atmega32u2" --relpath --calls . . ../../drivers ../../drivers/avr ../../utils ../../extra --exclude system.h > doc/callgraph.d)
|
||||
|
||||
|
||||
# Clean: delete derived files.
|
||||
.PHONY: clean
|
||||
clean:
|
||||
-$(DEL) *.d *.pdf
|
||||
|
||||
@ -0,0 +1,16 @@
|
||||
Running make in this directory will generate a number of PDF graphs.
|
||||
In the callgraph, the arrows means "calls". In the dependency graphs,
|
||||
the arrows means "requires" (or "depends upon").
|
||||
|
||||
callgraph.pdf This shows the callgraph, i.e., what functions each
|
||||
function in the program calls.
|
||||
module_dependencies.pdf This shows the dependencies between the modules.
|
||||
file_dependencies.pdf This shows the dependencies between the files.
|
||||
makefile_dependencies.pdf This shows the dependencies required by make when
|
||||
building the program.
|
||||
build_dependencies.pdf This is like makefile_dependencies.pdf but shows
|
||||
the operations performed to generate the new file.
|
||||
|
||||
callgraph.d This shows the callgraph in text format.
|
||||
files.d This shows the file dependencies in text format.
|
||||
modules.d This shows the module dependencies in text format.
|
||||
@ -0,0 +1,112 @@
|
||||
/** @file stars1.c
|
||||
@author M.P. Hayes
|
||||
@date 25 Sep 2013
|
||||
@brief Example of using pseudorandom numbers and controlling pixel
|
||||
brightness with PWM. Note, pseudorandom numbers follow the same
|
||||
sequence.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "system.h"
|
||||
#include "pacer.h"
|
||||
#include "tinygl.h"
|
||||
|
||||
/* This controls the range of luminance. A bigger number gives more dynamic range
|
||||
but requires a faster update rate. */
|
||||
#define LUMINANCE_STEPS 25
|
||||
|
||||
/* This needs to be fast enough to prevent the eye noticing flicker.
|
||||
A lower value (say 5) is useful for flashing pixels. */
|
||||
#define PWM_RATE 40
|
||||
|
||||
/* This is the rate (Hz) that new stars are created. */
|
||||
#define CREATE_RATE 2
|
||||
|
||||
/* This is the rate (Hz) of luminance changes. */
|
||||
#define FADE_RATE 2
|
||||
|
||||
#define UPDATE_RATE (LUMINANCE_STEPS * PWM_RATE)
|
||||
|
||||
#define LOOP_RATE (TINYGL_WIDTH * UPDATE_RATE)
|
||||
|
||||
int main (void)
|
||||
{
|
||||
uint16_t fade_tick = 0;
|
||||
uint16_t create_tick = 0;
|
||||
uint8_t pwm_tick = 0;
|
||||
uint8_t x;
|
||||
uint8_t y;
|
||||
uint8_t col;
|
||||
/* This stores the current luminance level for each pixel. */
|
||||
uint8_t display[TINYGL_HEIGHT][TINYGL_WIDTH] = {0, };
|
||||
/* This controls the luminance levels. The maximum value
|
||||
of LUMINANCE_STEPS gives 100 percent duty cycle.
|
||||
The first value must be zero to turn star off when it dies. */
|
||||
const uint8_t levels[] = {0, 1, 2, 4, 8, 15, 25, 15, 8, 4, 2, 1};
|
||||
|
||||
system_init ();
|
||||
|
||||
tinygl_init (LOOP_RATE);
|
||||
|
||||
pacer_init (LOOP_RATE);
|
||||
|
||||
while (1)
|
||||
{
|
||||
/* Refresh display. */
|
||||
for (col = 0; col < TINYGL_WIDTH; col++)
|
||||
{
|
||||
pacer_wait ();
|
||||
|
||||
tinygl_update ();
|
||||
}
|
||||
|
||||
fade_tick++;
|
||||
if (fade_tick >= UPDATE_RATE / FADE_RATE)
|
||||
{
|
||||
fade_tick = 0;
|
||||
|
||||
/* Change luminance of stars until they die. */
|
||||
for (x = 0; x < TINYGL_WIDTH; x++)
|
||||
{
|
||||
for (y = 0; y < TINYGL_HEIGHT; y++)
|
||||
{
|
||||
if (display[y][x] > 0)
|
||||
display[y][x]--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
create_tick++;
|
||||
if (create_tick >= UPDATE_RATE / CREATE_RATE)
|
||||
{
|
||||
create_tick = 0;
|
||||
|
||||
/* Create new star, but not over a live one. */
|
||||
do
|
||||
{
|
||||
x = rand () % TINYGL_WIDTH;
|
||||
y = rand () % TINYGL_HEIGHT;
|
||||
} while (display[y][x]);
|
||||
|
||||
display[y][x] = ARRAY_SIZE (levels) - 1;
|
||||
}
|
||||
|
||||
|
||||
/* Pulse width modulate pixels to control luminance. */
|
||||
for (x = 0; x < TINYGL_WIDTH; x++)
|
||||
{
|
||||
for (y = 0; y < TINYGL_HEIGHT; y++)
|
||||
{
|
||||
tinygl_draw_point (tinygl_point (x, y),
|
||||
levels[display[y][x]] > pwm_tick);
|
||||
}
|
||||
}
|
||||
|
||||
pwm_tick++;
|
||||
if (pwm_tick >= UPDATE_RATE / PWM_RATE)
|
||||
{
|
||||
pwm_tick = 0;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,48 @@
|
||||
/** @file spwm.c
|
||||
@author M. P. Hayes, UCECE
|
||||
@date 25 Sep 2013
|
||||
@brief These routines are for software pulse width modulation. They are
|
||||
useful for modulating the luiminance of an LED or beeping a piezo
|
||||
tweeter.
|
||||
*/
|
||||
#include "system.h"
|
||||
#include "spwm.h"
|
||||
|
||||
|
||||
/** Set the period. This must be greater than the duty. */
|
||||
void
|
||||
spwm_period_set (spwm_t *spwm, spwm_period_t period)
|
||||
{
|
||||
spwm->period = period;
|
||||
}
|
||||
|
||||
|
||||
/** Set the duty. This must be less than the period. */
|
||||
void
|
||||
spwm_duty_set (spwm_t *spwm, spwm_period_t duty)
|
||||
{
|
||||
spwm->duty = duty;
|
||||
}
|
||||
|
||||
|
||||
/** Return whether spwm output should be high or low.
|
||||
For example, to control the flashing of a LED use:
|
||||
|
||||
led_set (led, spwm_update (spwm)); */
|
||||
bool
|
||||
spwm_update (spwm_t *spwm)
|
||||
{
|
||||
spwm->count++;
|
||||
if (spwm->count >= spwm->period)
|
||||
spwm->count = 0;
|
||||
|
||||
return spwm->count < spwm->duty;
|
||||
}
|
||||
|
||||
|
||||
/* Reset spwm. */
|
||||
void
|
||||
spwm_reset (spwm_t *spwm)
|
||||
{
|
||||
spwm->count = 0;
|
||||
}
|
||||
@ -0,0 +1,45 @@
|
||||
/** @file spwm.h
|
||||
@author M. P. Hayes, UCECE
|
||||
@date 25 Sep 2013
|
||||
@brief These routines are for software pulse width modulation. They are
|
||||
useful for modulating the luiminance of an LED or beeping a piezo
|
||||
tweeter.
|
||||
*/
|
||||
#ifndef SPWM_H
|
||||
#define SPWM_H
|
||||
|
||||
#include "system.h"
|
||||
|
||||
|
||||
typedef uint8_t spwm_period_t;
|
||||
|
||||
|
||||
/* This structure is defined here so the compiler can allocate enough
|
||||
memory for it. However, its fields should be treated as
|
||||
private. */
|
||||
typedef struct spwm_struct
|
||||
{
|
||||
spwm_period_t period;
|
||||
spwm_period_t duty;
|
||||
spwm_period_t count;
|
||||
} spwm_t;
|
||||
|
||||
|
||||
/** Set the period. This must be greater than the duty. */
|
||||
void spwm_period_set (spwm_t *spwm, spwm_period_t period);
|
||||
|
||||
|
||||
/** Set the duty. This must be less than the period. */
|
||||
void spwm_duty_set (spwm_t *spwm, spwm_period_t duty);
|
||||
|
||||
|
||||
/** Return whether spwm output should be high or low.
|
||||
For example, to control the flashing of a LED use:
|
||||
|
||||
led_set (led, spwm_update (spwm)); */
|
||||
bool spwm_update (spwm_t *spwm);
|
||||
|
||||
|
||||
/* Reset spwm. */
|
||||
void spwm_reset (spwm_t *spwm);
|
||||
#endif
|
||||
Loading…
Reference in new issue