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Add version of gobble6 but using task scheduler

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This commit is contained in:
Michael Hayes
2013-10-01 16:20:07 +13:00
parent 1381bf5ee3
commit 8ff16f57b1
8 changed files with 588 additions and 31 deletions
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apps/pulsate1/pulsate1.c
+41 -31
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@@ -19,23 +19,26 @@
#define PWM_RATE 40
/* This is the rate (Hz) of luminance changes. */
#define PULSATE_RATE 10
#define PULSATE_RATE 1
#define UPDATE_RATE (LUMINANCE_STEPS * PWM_RATE)
#define LOOP_RATE (TINYGL_WIDTH * UPDATE_RATE)
/* Brightness = Luminance ** 2.5. */
int main (void)
{
uint16_t pulsate_tick = 0;
uint8_t pwm_tick = 0;
uint8_t x;
uint8_t y;
uint8_t update_col = 0;
uint8_t col;
uint8_t luminance = 0;
/* This controls the luminance levels. The maximum value
of LUMINANCE_STEPS gives 100 percent duty cycle. */
const uint8_t levels[] = {1, 2, 4, 8, 15, 25, 15, 8, 4, 2, 1};
/* This controls the luminance levels. */
const uint8_t levels[] = {4, 8, 16, 32, 64, 100, 64, 32, 16, 4};
system_init ();
@@ -54,36 +57,43 @@ int main (void)
pacer_wait ();
tinygl_update ();
}
pulsate_tick++;
if (pulsate_tick >= UPDATE_RATE / PULSATE_RATE)
{
pulsate_tick = 0;
if (luminance == 0)
luminance = ARRAY_SIZE (levels) - 1;
else
luminance--;
}
state = levels[luminance] > pwm_tick;
/* Pulse width modulate pixels to control luminance. */
for (x = 0; x < TINYGL_WIDTH; x++)
{
for (y = 0; y < TINYGL_HEIGHT; y++)
if (update_col != col)
continue;
if (update_col == 0)
update_col = TINYGL_WIDTH;
update_col--;
pulsate_tick++;
if (pulsate_tick >= UPDATE_RATE / PULSATE_RATE)
{
tinygl_draw_point (tinygl_point (x, y), state);
pulsate_tick = 0;
if (luminance == 0)
luminance = ARRAY_SIZE (levels) - 1;
else
luminance--;
}
state = levels[luminance] > pwm_tick * 100 / LUMINANCE_STEPS;
/* 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), state);
}
}
led_set (LED1, state);
pwm_tick++;
if (pwm_tick >= UPDATE_RATE / PWM_RATE)
{
pwm_tick = 0;
}
}
led_set (LED1, state);
pwm_tick++;
if (pwm_tick >= UPDATE_RATE / PWM_RATE)
{
pwm_tick = 0;
}
}
return 0;