pio_example1_rainbow_lights.c File Reference

---

Detailed Description

PIO Controller basic feature demonstration.

This example uses the PIO driver to toggle the RGB leds on the STK1000. See the documentation or comments in this file for jumper settings on your STK1000.

• Compiler: IAR EWAAVR32 and GNU GCC for AVR32
• Supported devices: All AVR32 devices with a PIO module can be used. The example is written for AP7000 and STK1000.
• AppNote: AVR32111 - Using the AVR32 PIO Controller

Author:

Atmel Corporation: http://www.atmel.com
Support email: avr32@atmel.com

Name

Revision

1.2

RCSfile

pio_example1_rainbow_lights.c,v

Date

2006/05/10 12:01:41

Definition in file pio_example1_rainbow_lights.c.

#include "pio.h"

Include dependency graph for pio_example1_rainbow_lights.c:

Go to the source code of this file.

Defines
#define	BLACK   0x00
#define	BLUE   0x10
#define	CPU_HZ   20000000
#define	GREEN   0x04
#define	LEFT   0
#define	NUMBER_OF_COLORS   4
#define	RED   0x01
#define	RIGHT   1
#define	SUCCESS   0;
Functions
void	delay (void)
int	main (void)

---

Define Documentation

#define BLACK   0x00

Definition at line 79 of file pio_example1_rainbow_lights.c. Referenced by main().

#define BLUE   0x10

Definition at line 82 of file pio_example1_rainbow_lights.c. Referenced by main().

#define CPU_HZ   20000000

Definition at line 71 of file pio_example1_rainbow_lights.c. Referenced by delay().

#define GREEN   0x04

Definition at line 81 of file pio_example1_rainbow_lights.c. Referenced by main().

#define LEFT   0

Definition at line 75 of file pio_example1_rainbow_lights.c.

#define NUMBER_OF_COLORS   4

Definition at line 72 of file pio_example1_rainbow_lights.c. Referenced by main().

#define RED   0x01

Definition at line 80 of file pio_example1_rainbow_lights.c. Referenced by main().

#define RIGHT   1

Definition at line 76 of file pio_example1_rainbow_lights.c.

#define SUCCESS   0;

Definition at line 69 of file pio_example1_rainbow_lights.c. Referenced by main().

---

Function Documentation

void delay (  void   )

A delay functions that delays the chip for CPU_HZ / 4. Returns: none Definition at line 155 of file pio_example1_rainbow_lights.c. References CPU_HZ. Referenced by main(). { int i; for (i=0; i<CPU_HZ/4; i++); }

int main (  void   )

This function toggles your RGB-leds Returns: SUCCESS Definition at line 121 of file pio_example1_rainbow_lights.c. References BLACK, BLUE, delay(), GREEN, NUMBER_OF_COLORS, and RED. { int i; int color_array[NUMBER_OF_COLORS]={RED,GREEN,BLUE,BLACK}; /* Set up a pio structure to point at PIOC's base address */ volatile avr32_pio_t *pioc = &AVR32_PIOC; pioc->per = 0x000000ff; /* Set pio enable for 16 LSBs of PORTB */ pioc->oer = 0x000000ff; /* Make them output ports */ pioc->idr = 0x000000ff; /* Disable interrupts on these pins */ pioc->puer = 0x00000ff; /* Enable pull-ups */ while(1){ for(i=0; i<NUMBER_OF_COLORS; i++){ /* Clear the RGB-color for the right/left RGB led*/ pioc->codr = 0x000000ff; /* Set the current RGB-color to the left and right RGB led*/ pioc->sodr = color_array[i] | color_array[i]<<1; delay(); } } return SUCCESS; } Here is the call graph for this function:

---