*
* PWM test program
*
- * PIC resources in use, 18-pin DIP, by pin:
- * - ( 1) RA2 - unused
- * - ( 2) RA3 - CCP3 PWM for blu LED
- * - ( 3) RA4 - CCP4 PWM for wht LED. ICSP pin 6, PGM/LVP.
- * - ( 4) RA5 - ICSP pin 1, MCLR#/Vpp
- * - ( 5) Vss
- * - ( 6) RB0 - pushbutton
- * - ( 7) RB1 - unused
- * - ( 8) RB2 - unused
- * - ( 9) RB3 - CCP1 PWM for red LED
- * - (10) RB4 - rocker switch position B (right)
- * - (11) RB5 - rocker switch position A (left)
- * - (12) RB6 - unused (future crystal)
- * - (13) RB7 - unused (future crystal)
- * - (14) Vdd
- * - (15) RA6 - unused
- * - (16) RA7 - CCP2 PWM for grn LED
- * - (17) RA0 - unused
- * - (18) RA1 - unused
- *
+ * PIC resources in use, 28-pin DIP, by pin:
+ * - ( 1) RE3 - Vpp/MCLR#
+ * - ( 2) RA0 - unused
+ * - ( 3) RA1 - unused
+ * - ( 4) RA2 - unused
+ * - ( 5) RA3 - unused
+ * - ( 6) RA4 - unused (could become PGM/LVP, but apparently not needed)
+ * - ( 7) RA5 - unused
+ * - ( 8) Vss
+ * - ( 9) RA7 - unused
+ * - (10) RA6 - unused
+ * - (11) RC0 - T1OSO
+ * - (12) RC1 - T1OSI
+ * - (13) RC2 - CCP1 PWM for wht LED
+ * - (14) RC3 - unused
+ * - (15) RC4 - unused
+ * - (16) RC5 - unused
+ * - (17) RC6 - unused
+ * - (18) RC7 - unused
+ * - (19) Vss
+ * - (20) Vdd
+ * - (21) RB0 - CCP4 PWM for blu LED
+ * - (22) RB1 - Pushbutton
+ * - (23) RB2 - Rocker switch, right
+ * - (24) RB3 - CCP2 PWM for grn LED
+ * - (25) RB4 - Rocker switch, left
+ * - (26) RB5 - CCP3 PWM for red LED
+ * - (27) RB6 - ICSPCLK
+ * - (28) RB7 - ICSPDAT
*/
#include <htc.h>
#include "btn.h"
#include "rgb.h"
#include "tmr.h"
-#include "adc_random.h"
+#include "tmr32.h"
#include "task.h"
+#include "adc_random.h"
-#if 0
-#define AUTO_OFF_COUNT 549316UL /* 5 hrs in 32.768 ms units */
-#define AUTO_ON_COUNT 2087402UL /* 19 hrs in 32.768 ms units */
+#if 1
+#define AUTO_OFF_COUNT 1800U /* 1 hr in 2 sec units */
+#define AUTO_ON_COUNT 19800U /* 11 hrs in 2 sec units */
#else
-#define AUTO_OFF_COUNT 1831 /* 1 minute in 32.768 ms units */
-#define AUTO_ON_COUNT 3662 /* 2 minutes in 32.768 ms units */
+#define AUTO_OFF_COUNT 9000U /* 5 hrs in 2 sec units */
+#define AUTO_ON_COUNT 34200U /* 19 hrs in 2 sec units */
#endif
-#define rand_u8() (rand() & 0xff)
-#define rand_u16() ((rand() << 8) + rand_u8())
-#define rand_incolor_steps(s) (min_incolor_steps[s & 3] + \
- (rand() % range_incolor_steps[s & 3]))
-#define rand_fade_steps(s) (min_fade_steps[s & 3] + \
- (rand() % range_fade_steps[s & 3]))
-#define leds_set(r,g,b,w) rgb_set((r).value >> 7, \
- (g).value >> 7, \
- (b).value >> 7, \
- 0)
+#define leds_set(r,g,b,w) rgb_set((r).value >> 7, (g).value >> 7, \
+ (b).value >> 7, 0)
#define dbgpin_init() do { \
/* Set RA2 as output low */ \
RA2 = 0; \
signed char remainder;
} led_t;
-/* The index of all step arrays is the speed variable */
-#if 1
+/* The index of all step arrays is the speed variable. min values must be
+ * at least one. range values are bit-ANDed with rand() to generate a range, so
+ * ensure they are one less than a power of 2 and at least 1.
+ */
const static unsigned min_incolor_steps[4] = { 320, 32, 32, 1 };
-const static unsigned range_incolor_steps[4] = { 32768, 128, 32, 8 };
-const static int min_fade_steps[4] = { 64, 32, 32, 1 };
-const static int range_fade_steps[4] = { 416, 128, 32, 8 };
-#else /* for debugging */
-const static unsigned min_incolor_steps[4] = { 64, 32, 16, 8 };
-const static unsigned range_incolor_steps[4] = { 1, 1, 1, 1 };
-const static int min_fade_steps[4] = { 64, 32, 16, 8 };
-const static int range_fade_steps[4] = { 1, 1, 1, 1 };
-#endif
+const static unsigned range_incolor_steps[4] = { 32767, 127, 31, 7 };
+const static int min_fade_steps[4] = { 64, 32, 32, 8 };
+const static int range_fade_steps[4] = { 511, 127, 31, 7 };
led_t red;
led_t grn;
} while (newr == 0 && newg == 0 && newb == 0 && neww == 0);
/* Random # of steps to reach the new color */
- fade_steps = rand_fade_steps(speed);
+ fade_steps = min_fade_steps[speed & 3] +
+ (rand() & range_fade_steps[speed & 3]);
/* Compute increment per fade step, and remainder, for each led */
red.increment = (newr - red.value) / fade_steps;
wht.remainder = neww - (wht.value + wht.increment * fade_steps);
/* Start the fade timer */
+ tmr_stop(TMR_INCOLOR);
tmr_startPeriodic(TMR_FADE, 1); /* 32.768 msec */
}
{
dbgpin_high();
on = 1;
- rgb_on();
red.value = 0;
grn.value = 0;
blu.value = 0;
wht.value = 0;
+ leds_set(red, grn, blu, wht);
+ rgb_on();
start_fade();
+ btn_pben();
}
void turnOff()
tmr_stop(TMR_FADE);
rgb_off();
dbgpin_low();
+ SLEEP();
on = 0;
}
void pb_task()
{
- if (btn_pb() == BTN_PB_UP) {
- speed = (speed + 1) & ~4;
- fade_steps = 0;
+ /* Is this task running nearly continuously? */
+ if (on) {
+ if (btn_pb() == BTN_PB_UP) {
+ speed = (speed + 1) & 3;
+ start_fade();
+ }
+ btn_pben();
}
- btn_pben();
}
void rs_task()
{
+ btn_rsen();
switch (btn_rs()) {
case BTN_RS_OFF:
- tmr_stop(TMR_AUTO_OFFON);
+ tmr32_set(0);
turnOff();
break;
case BTN_RS_RIGHT:
- tmr_start(TMR_AUTO_OFFON, AUTO_OFF_COUNT);
+ tmr32_set(AUTO_OFF_COUNT);
/* fall through */
case BTN_RS_LEFT:
turnOn();
break;
}
- btn_rsen();
}
void fade_task()
blu.value += blu.remainder;
wht.value += wht.remainder;
tmr_stop(TMR_FADE);
- tmr_start(TMR_INCOLOR, rand_incolor_steps(speed));
+ tmr_start(TMR_INCOLOR, min_incolor_steps[speed & 3] +
+ (rand() & range_incolor_steps[speed & 3]));
}
leds_set(red, grn, blu, wht);
}
-void auto_onoff_task()
+void auto_offon_task()
{
if (on) {
turnOff();
if (btn_rs() == BTN_RS_RIGHT)
- tmr_start(TMR_AUTO_OFFON, AUTO_OFF_COUNT);
+ tmr32_set(AUTO_ON_COUNT);
} else /* off */ {
turnOn();
if (btn_rs() == BTN_RS_RIGHT)
- tmr_start(TMR_AUTO_OFFON, AUTO_ON_COUNT);
+ tmr32_set(AUTO_OFF_COUNT);
}
}
{
dbgpin_high();
srand((adc_random() << 8) + adc_random());
- pb_task();
rs_task();
}
{
task_id_t tid;
- while ((tid = task_get(block))) {
+ while ((tid = task_get(block)) >= 0) {
switch (tid) {
case TASK_BTN_PB: /* pushbutton state change */
pb_task();
case TASK_INCOLOR: /* in-color timer has fired */
start_fade();
break;
- case TASK_AUTO_OFFON: /* auto on/off timer has fired */
- auto_onoff_task();
+ case TASK_TMR32: /* auto on/off event */
+ auto_offon_task();
break;
}
}
int main(void)
{
+ /* Platform initialization */
pic_init();
unused_init();
btn_init();
rgb_init();
tmr_init();
+ tmr32_init();
task_init();
dbgpin_init();
projects / rgblamp.git / blobdiff