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|
/* (c) copyright N.C. 2011 */
// ATMEL ATMEGA8
//
// +-\/-+
// (RESET) PC6 1| |28 PC5 (ADC5/SCL)
// (RXD) PD0 2| |27 PC4 (ADC4/SDA)
// (TXD) PD1 3| |26 PC3 (ADC3)
// (INT0) PD2 4| |25 PC2 (ADC2)
// (INT1) PD3 5| |24 PC1 (ADC1)
// (XCK/T0) PD4 6| |23 PC0 (ADC0)
// VCC 7| |22 GND
// GND 8| |21 AREF
// (XTAL1/TOSC1) PB6 9| |20 AVCC
// (XTAL2/TOSC2) PB7 10| |19 PB5 (SCK)
// (T1) PD5 11| |18 PB4 (MISO)
// (AIN0) PD6 12| |17 PB3 (MOSI/OC2)
// (AIN1) PD7 13| |16 PB2 (SS/OC1B)
// (ICP1) PB0 14| |15 PB1 (OC1A)
// +----+
extern "C" {
#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdlib.h> // rand
}
//char myrand()
//{
// static short rand = 0;
// rand=(rand*109+89)%251;
// return rand;
//}
int myrand() { return rand(); }
#define CUBE_SIZE 8
//#define AXIS_X 1
//#define AXIS_Y 2
//#define AXIS_Z 3
volatile unsigned char cube[8][8];
//volatile unsigned char current_layer = 0;
extern volatile unsigned char current_layer;
volatile bool in_wait = false;
volatile unsigned char fb[CUBE_SIZE][CUBE_SIZE];
/*****************************************************************************
* TIME MANAGEMENT
*****************************************************************************/
#define F_CPU 8000000UL
#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
#define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )
#define microsecondsToClockCycles(a) ( (a) * clockCyclesPerMicrosecond() )
// the prescaler is set so that timer0 ticks every 64 clock cycles, and the
// the overflow handler is called every 256 ticks.
#define MICROSECONDS_PER_TIMER0_OVERFLOW (clockCyclesToMicroseconds(64 * 256))
// the whole number of milliseconds per timer0 overflow
#define MILLIS_INC (MICROSECONDS_PER_TIMER0_OVERFLOW / 1000)
// the fractional number of milliseconds per timer0 overflow. we shift right
// by three to fit these numbers into a byte. (for the clock speeds we care
// about - 8 and 16 MHz - this doesn't lose precision.)
#define FRACT_INC ((MICROSECONDS_PER_TIMER0_OVERFLOW % 1000) >> 3)
#define FRACT_MAX (1000 >> 3)
//volatile uint32_t timer0_overflow_count = 0;
volatile uint32_t timer0_millis = 0;
//static uint8_t timer0_fract = 0;
ISR(TIMER0_OVF_vect)
{
// copy these to local variables so they can be stored in registers
// (volatile variables must be read from memory on every access)
uint32_t m = timer0_millis;
//uint8_t f = timer0_fract;
static uint8_t timer0_fract = 0;
m += MILLIS_INC;
//f += FRACT_INC;
timer0_fract += FRACT_INC;
//if (f >= FRACT_MAX) {
if (timer0_fract >= FRACT_MAX) {
//f -= FRACT_MAX;
timer0_fract -= FRACT_MAX;
++m;
}
//timer0_fract = f;
timer0_millis = m;
//timer0_overflow_count++;
//static uint32_t last_time = 0;
//if (timer0_overflow_count & 0x1)
//if (m - last_time >= 5) {
//debounce_keys(); // called nearly each 2ms (0,002048s)
//last_time = m;
//}
}
/*
inline uint32_t millis()
{
uint32_t m;
uint8_t oldSREG = SREG;
// disable interrupts while we read timer0_millis or we might get an
// inconsistent value (e.g. in the middle of a write to timer0_millis)
cli();
m = timer0_millis;
SREG = oldSREG;
return m;
}
*/
inline uint32_t millis()
{
return timer0_millis;
}
void delay(uint32_t ms)
{
in_wait = true;
uint32_t time1 = millis();
while ((millis()) - time1 < ms);
in_wait = false;
}
//void delay_ms(uint16_t x)
//{
// in_wait = true;
// uint8_t y, z;
// for ( ; x > 0 ; x--){
// for ( y = 0 ; y < 90 ; y++){
// for ( z = 0 ; z < 6 ; z++){
// asm volatile ("nop");
// }
// }
// }
// in_wait = false;
//}
/*****************************************************************************
* ACCESSORS
*****************************************************************************/
//unsigned char inrange(int x, int y, int z)
//{
// if (x >= 0 && x < CUBE_SIZE && y >= 0 && y < CUBE_SIZE && z >= 0 && z < CUBE_SIZE)
// {
// return 1;
// } else
// {
// // One of the coordinates was outside the cube.
// return 0;
// }
//}
//bool get_led(unsigned char x, unsigned char y, unsigned char z)
//{
// /*
// assert(x >= 0 && x <= 7);
// assert(y >= 0 && y <= 7);
// assert(z >= 0 && z <= 7);
// */
//
// if (inrange(x, y, z)) {
// return cube[y][z] & (1 << x);
// }
//
// return false;
//}
//void set_led(unsigned char x, unsigned char y, unsigned char z, bool on)
//{
//
// if (!inrange(x, y, z)) {
// return;
// }
//
// /*
// assert(x >= 0 && x <= 7);
// assert(y >= 0 && y <= 7);
// assert(z >= 0 && z <= 7);
// */
//
// if (on) {
// cube[y][z] |= ((unsigned char)1) << x;
// }
// else {
// cube[y][z] &= ~(((unsigned char)1) << x);
// }
//}
void clear_led()
{
for (unsigned char z = 0; z < 8; ++z) {
for (unsigned char y = 0; y < 8; ++y) {
cube[y][z] = 0;
}
}
}
/*****************************************************************************
* RENDER
*****************************************************************************/
//ISR(TIMER2_COMP_vect)
//{
// //if (!in_wait) return;
// PORTC &= ~0x28; // layer and latch low
// unsigned char current_layer_ = current_layer;
//
// for (char j = 0; j < 8; ++j) {
// //for (char j = 0; j < 4; ++j) {
// unsigned char val = cube[7-j][current_layer_];
// //unsigned char val2 = cube[3-j][current_layer_];
// for (char i = 0; i < 8; ++i/*, val >>= 1*/) {
// PORTC &= ~0x10;
// //PORTD = (PORTD & ~0x80) | ((val2 << (7-i)) & 0x80);
// PORTB = (PORTB & ~0x01) | ((val >> i) & 0x01);
// //PORTB |= 0x01;
//
// //PORTD |= 0x80;
// //PORTD = (PORTD & ~0x40) | (((val << (7-i)) & 0x80) >> 1);
// PORTC |= 0x10;
// }
// }
//
// PORTC = (PORTC & ~0x07) | current_layer_;
// ++current_layer_;
// current_layer = current_layer_ & 0x07;
//
// PORTC |= 0x28; // layer and latch high
//}
ISR(TIMER2_COMP_vect)
{
//if (!in_wait) return;
PORTC &= ~0x28; // layer and latch low
unsigned char current_layer_ = current_layer;
for (unsigned char j = 7; j < 255; --j) {
//for (char j = 0; j < 4; ++j) {
unsigned char val = cube[j][current_layer_];
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val ) & 0x01);
PORTC |= 0x10;
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val >> 1) & 0x01);
PORTC |= 0x10;
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val >> 2) & 0x01);
PORTC |= 0x10;
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val >> 3) & 0x01);
PORTC |= 0x10;
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val >> 4) & 0x01);
PORTC |= 0x10;
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val >> 5) & 0x01);
PORTC |= 0x10;
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val >> 6) & 0x01);
PORTC |= 0x10;
PORTC &= ~0x10;
PORTB = (PORTB & ~0x01) | ((val >> 7) & 0x01);
//PORTD = val;
PORTC |= 0x10;
}
PORTC = (PORTC & ~0x07) | current_layer_ | 0x28;
++current_layer_;
if (current_layer_ > 7) current_layer_ = 0;
//current_layer = current_layer_ & 0x07;
current_layer = current_layer_;
//PORTC |= 0x28; // layer and latch high
}
//void draw_positions_axis (char axis, unsigned char positions[64], int invert)
//{
// int x, y, p;
//
// //fill(0x00);
// clear_led();
//
// for (x=0; x<8; x++)
// {
// for (y=0; y<8; y++)
// {
// if (invert)
// {
// p = (7-positions[(x*8)+y]);
// } else
// {
// p = positions[(x*8)+y];
// }
//
// if (axis == AXIS_Z)
// //setvoxel(x,y,p);
// set_led(x, y, p, true);
//
// if (axis == AXIS_Y)
// //setvoxel(x,p,y);
// set_led(x,p,y, true);
//
// if (axis == AXIS_X)
// set_led(p,y,x, true);
// }
// }
//
//}
//void effect_boxside_randsend_parallel (char axis, int origin, int delay, int mode)
//{
// int i;
// int done;
// unsigned char cubepos[64];
// unsigned char pos[64];
// int notdone = 1;
// int notdone2 = 1;
// int sent = 0;
//
// for (i=0;i<64;i++)
// {
// pos[i] = 0;
// }
//
// while (notdone)
// {
// if (mode == 1)
// {
// notdone2 = 1;
// while (notdone2 && sent<64)
// {
// i = myrand()%64;
// if (pos[i] == 0)
// {
// sent++;
// pos[i] += 1;
// notdone2 = 0;
// }
// }
// } else if (mode == 2)
// {
// if (sent<64)
// {
// pos[sent] += 1;
// sent++;
// }
// }
//
// done = 0;
// for (i=0;i<64;i++)
// {
// if (pos[i] > 0 && pos[i] <7)
// {
// pos[i] += 1;
// }
//
// if (pos[i] == 7)
// done++;
// }
//
// if (done == 64)
// notdone = 0;
//
// for (i=0;i<64;i++)
// {
// if (origin == 0)
// {
// cubepos[i] = pos[i];
// } else
// {
// cubepos[i] = (7-pos[i]);
// }
// }
//
//
// delay_ms(delay);
// draw_positions_axis(axis,cubepos,0);
//
// }
//
//}
/*****************************************************************************
* MAIN
*****************************************************************************/
#include "main.h"
#include "effect.h"
#include "draw.h"
int main()
{
/*
* =======================================================================
* Initialisation
* =======================================================================
*/
//*** init time management
TCNT0 = 0; // init timer count to 0
TCCR0 |= 0x03; // prescaler: 64
TIMSK |= 0x01; // enable timer 0 overflow interrupt
// Timer 2
// Frame buffer interrupt
// 14745600/128/11 = 10472.72 interrupts per second
// 10472.72/8 = 1309 frames per second
OCR2 = 11; // interrupt at counter = 10
TCCR2 |= (1 << CS20) | (0 << CS21) | (1 << CS22); // Prescaler = 128.
TCCR2 |= (1 << WGM21); // CTC mode. Reset counter when OCR2 is reached.
TCNT2 = 0x00; // initial counter value = 0;
TIMSK |= (1 << OCIE2); // Enable CTC interrupt
PORTD = 0;
PORTB = 0;
PORTC = 0;
DDRD = 0xff;
DDRB = 0xff;
DDRC = 0xff;
//*** set interupts
sei();
/*
* =======================================================================
* MAIN LOOP
* =======================================================================
*/
for (;;) {
//clear_led();
//delay_ms(1000);
for (unsigned char z = 0; z < 8; ++z) {
for (unsigned char y = 0; y < 8; ++y) {
cube[y][z] = 0xFF;
}
}
//continue;
delay(1000);
// Show the effects in a predefined order
//for (char i=0; i<EFFECTS_TOTAL; i++)
//launch_effect(i);
sendvoxels_rand_z(20,220,2000);
effect_rain(100);
effect_random_filler(5,1);
effect_z_updown(20,1000);
effect_wormsqueeze (2, AXIS_Z, -1, 100, 1000);
effect_blinky2();
// Show the effects in a random order.
// Comment the two lines above and uncomment this
// if you want the effects in a random order.
//launch_effect(rand()%EFFECTS_TOTAL);
for (char i = 0; i < 10; ++i) {
effect_boxside_randsend_parallel (AXIS_X, 0, 150, 1);
effect_boxside_randsend_parallel (AXIS_X, 1, 150, 1);
effect_boxside_randsend_parallel (AXIS_Y, 0, 150, 1);
effect_boxside_randsend_parallel (AXIS_Y, 1, 150, 1);
effect_boxside_randsend_parallel (AXIS_Z, 0, 150, 1);
effect_boxside_randsend_parallel (AXIS_Z, 1, 150, 1);
}
continue;
//return;
for (char z = 0; z < 8; ++z) {
for (char y = 0; y < 8; ++y) {
for (char x = 0; x < 8; ++x) {
//set_led(x, y, z, true);
delay(5);
delay(100);
//delay(500);
//delay(1000);
//delay_ms(1000);
}
}
}
//delay(1000);
//PORTB ^= 0x01;
}
return 0; // normally never return, just to be complient with c99 standard
}
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