85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
#include <stddef.h>
|
|
#include <drv_led.h>
|
|
#include "led_info.h"
|
|
#include <timers.h>
|
|
#include <devices.h>
|
|
|
|
#include <drv_instrument.h>
|
|
#include "instruments.h"
|
|
|
|
#define PRE_SCAN_VALUE 100
|
|
#define SCAN_ARRAY_SIZE 7
|
|
|
|
timer_handler_t TimerTick (void * context);
|
|
void UpdateKnightRiderLEDs (void);
|
|
void init(void);
|
|
|
|
led_t * ptrLEDs;
|
|
instrument_t * ctrl_spd;
|
|
unsigned char ScanArray[LEDS_NUM_LED_IDS];
|
|
unsigned char inst_delay = 255;
|
|
volatile unsigned char Tick = 0;
|
|
|
|
void main(void)
|
|
{
|
|
init();
|
|
led_turn_on(ptrLEDs, 0);
|
|
ctrl_spd = instrument_open(CUSTOM_INSTRUMENT_1);
|
|
while (1)
|
|
{
|
|
if (Tick)
|
|
{
|
|
if (inst_delay++ == 0)
|
|
{
|
|
/*
|
|
* Read Custom Instrument Slider Value and subtract it from
|
|
* delay time (higher slider = less delay = faster chasing).
|
|
*/
|
|
inst_delay = instrument_get_value( ctrl_spd,
|
|
CUSTOM_INSTRUMENT_1_DELAY);
|
|
UpdateKnightRiderLEDs();
|
|
}
|
|
Tick = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void init(void)
|
|
{
|
|
// Connect to LED hardware
|
|
ptrLEDs = led_open(LEDS);
|
|
// Set timer callback function
|
|
timer_register_handler(0, 1000L, (void*)TimerTick);
|
|
}
|
|
|
|
timer_handler_t TimerTick(void * context)
|
|
{
|
|
Tick = 1; //indicate to mainline that the timer tick has occurred.
|
|
return NULL;
|
|
}
|
|
|
|
void UpdateKnightRiderLEDs(void)
|
|
{
|
|
static unsigned char ScanIndex = 0;
|
|
static unsigned char LEDScanIndexModifier = 1;
|
|
|
|
for (unsigned char i = 0; i < LEDS_NUM_LED_IDS; i++)
|
|
{
|
|
if (ScanArray[i] == PRE_SCAN_VALUE)
|
|
ScanArray[i] = 255;
|
|
else
|
|
ScanArray[i] = ScanArray[i] >> 1;
|
|
}
|
|
|
|
ScanArray[ScanIndex] = PRE_SCAN_VALUE;
|
|
ScanIndex += LEDScanIndexModifier;
|
|
|
|
if ((ScanIndex == (LEDS_NUM_LED_IDS - 1)) || (ScanIndex == 0))
|
|
LEDScanIndexModifier *= - 1;
|
|
|
|
for (unsigned char i = 0; i < LEDS_NUM_LED_IDS; i++)
|
|
{
|
|
led_set_intensity(ptrLEDs, i, ScanArray[i]);
|
|
}
|
|
}
|