advanced_dip_switch_lights.c File Reference

#include "../part.h"
#include "pio_defines.h"

Include dependency graph for advanced_dip_switch_lights.c:

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Defines
#define	BITMASK   0x000000ff
#define	black   0x00
#define	blue   0x10
#define	green   0x04
#define	INPUT_BITMASK   0x0000ff00
#define	light_blue   0x14
#define	OUTPUT_BITMASK   0x000000ff
#define	purple   0x11
#define	red   0x01
#define	USE_RGB_LEDS   1
#define	white   0x15
#define	yellow   0x05
Functions
unsigned int	log_2 (register unsigned int x)
unsigned int	log_2 (unsigned int x)
int	main (void)
unsigned int	ones32 (register unsigned int x)
unsigned int	ones32 (unsigned int x)
Variables
char	color_array [8] = {black,purple,blue,light_blue,green,yellow,red,white}

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Define Documentation

#define BITMASK   0x000000ff

Definition at line 19 of file advanced_dip_switch_lights.c.

Referenced by main().

#define black   0x00

Definition at line 5 of file advanced_dip_switch_lights.c.

#define blue   0x10

Definition at line 9 of file advanced_dip_switch_lights.c.

#define green   0x04

Definition at line 7 of file advanced_dip_switch_lights.c.

#define INPUT_BITMASK   0x0000ff00

Definition at line 17 of file advanced_dip_switch_lights.c.

Referenced by main().

#define light_blue   0x14

Definition at line 11 of file advanced_dip_switch_lights.c.

#define OUTPUT_BITMASK   0x000000ff

Definition at line 18 of file advanced_dip_switch_lights.c.

Referenced by main().

#define purple   0x11

Definition at line 10 of file advanced_dip_switch_lights.c.

#define red   0x01

Definition at line 6 of file advanced_dip_switch_lights.c.

#define USE_RGB_LEDS   1

Definition at line 15 of file advanced_dip_switch_lights.c.

Referenced by main().

#define white   0x15

Definition at line 12 of file advanced_dip_switch_lights.c.

#define yellow   0x05

Definition at line 8 of file advanced_dip_switch_lights.c.

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Function Documentation

unsigned int log_2

(

register unsigned int

x

)

Definition at line 51 of file advanced_dip_switch_lights.c.

References ones32().

{
        x |= (x >> 1);
        x |= (x >> 2);
        x |= (x >> 4);
        x |= (x >> 8);
        x |= (x >> 16);

        return(ones32(x >> 1));
}

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unsigned int log_2

(

unsigned int

x

)

Referenced by main().

int main

(

void

)

Definition at line 24 of file advanced_dip_switch_lights.c.

References BITMASK, color_array, INPUT_BITMASK, log_2(), OUTPUT_BITMASK, piob, and USE_RGB_LEDS.

{
  avr32_pio_t *piob = (void *) AVR32_PIOB_ADDRESS;

  char input, output;

  /* SET PIO */
  piob->pdr = 0x00000000;
  piob->oer = OUTPUT_BITMASK;
  piob->odr = INPUT_BITMASK;
  piob->ifer = INPUT_BITMASK;
  piob->codr = 0xFFFFffff;

  while(1){
    input = (~(piob->pdsr >> 8) & BITMASK);
    output = (piob->pdsr) & BITMASK;
    if( input != output){
      piob->codr = OUTPUT_BITMASK;
      if(USE_RGB_LEDS)
        piob->sodr = color_array[ log_2(input) ] ;
      else
          piob->sodr = input;
    } //if

  }//while
}//main

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unsigned int ones32

(

register unsigned int

x

)

Definition at line 62 of file advanced_dip_switch_lights.c.

{

        x -= ((x >> 1) & 0x55555555);
        x = (((x >> 2) & 0x33333333) + (x & 0x33333333));
        x = (((x >> 4) + x) & 0x0f0f0f0f);
        x += (x >> 8);
        x += (x >> 16);

        return(x & 0x0000003f);
}

unsigned int ones32

(

unsigned int

x

)

Referenced by log_2().

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Variable Documentation

char color_array[8] = {black,purple,blue,light_blue,green,yellow,red,white}

Definition at line 13 of file advanced_dip_switch_lights.c.

Referenced by main(), and rgb_leds().

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