153 lines
4.7 KiB
C
153 lines
4.7 KiB
C
/***************************************************************************
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* 16ch RGB 8bit PWM controller *
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* *
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* Copyright (C) 2011 - 2012 by Olaf Rempel *
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* razzor AT kopf MINUS tisch DOT de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; version 2 of the License, *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <stdio.h>
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#include "rgb16mpm.h"
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/*
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* using ATmega32 @8MHz:
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* Fuse H: 0xD9 (no bootloader, jtag disabled)
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* Fuse L: 0xD4 (int. 8MHz Osz, fast rising power, no BOD)
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*
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* PA0..7 -> COL1..8
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* PC0..7 -> COL9..16
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* PB0 / PD7(OC2) -> ROW2/GREEN (OC2 not used)
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* PB1 / PD5(OC1A) -> ROW1/RED (OC1A not used)
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* PB2 / PD4(OC1B) -> ROW4 (OC1B not used)
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* PB3(OC0) / PD6 -> ROW3/BLUE (OC0 not used)
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* PD0 -> RXD
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* PD1 -> TXD
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* PD2 -> /RX_TX
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* PD3 -> /LED
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*/
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int main(void) __attribute__ ((noreturn));
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int main(void)
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{
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DDRD = (1<<LED);
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PORTD = (1<<LED);
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eeprom_read();
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rgb_init();
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mpm_init();
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sei();
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uint8_t x = 0;
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uint8_t xdir = 1;
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uint16_t ramp = 0;
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uint8_t step = 0;
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while (1) {
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/* wait for complete update */
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rgb_update(COLOR_MASK, 1);
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#if 1
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// _delay_ms(100);
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step++;
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if (step == 16) {
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step = 0;
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if (xdir) {
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x++;
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if (x == 0x05)
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x = 0x08;
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else if (x == 0x0C)
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xdir = 0;
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} else {
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x--;
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if (x == 0x00)
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xdir = 1;
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else if (x == 0x07)
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x = 0x04;
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}
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}
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uint8_t color[3];
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ramp++;
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switch (ramp >> 8) {
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case 6:
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ramp = 0x0000;
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/* no break */
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case 0: /* red: on, green: ramp up, blue: off */
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color[0] = 0xFF;
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color[1] = ramp & 0xFF;
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color[2] = 0x00;
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break;
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case 1: /* red: ramp down, green: on, blue:off */
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color[0] = 0xFF - (ramp & 0xFF);
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color[1] = 0xFF;
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color[2] = 0x00;
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break;
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case 2: /* red: off, green: on, blue: ramp up */
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color[0] = 0x00;
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color[1] = 0xFF;
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color[2] = (ramp & 0xFF);
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break;
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case 3: /* red: off, green: ramp down: blue: on */
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color[0] = 0x00;
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color[1] = 0xFF - (ramp & 0xFF);
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color[2] = 0xFF;
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break;
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case 4: /* red: ramp up, green: off, blue: on */
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color[0] = (ramp & 0xFF);
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color[1] = 0x00;
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color[2] = 0xFF;
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break;
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case 5: /* red: on, green: off, blue: ramp down */
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color[0] = 0xFF;
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color[1] = 0x00;
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color[2] = 0xFF - (ramp & 0xFF);
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break;
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}
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uint8_t i, j;
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for (i = 0; i < 16; i++) {
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for (j = 0; j < 3; j++) {
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#if 1
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if (x == i) {
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chan_value[j][i] = color[j];
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} else if (chan_value[j][i] > 0) {
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uint8_t tmp = (chan_value[j][i] >> 5);
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chan_value[j][i] -= (tmp > 0) ? tmp : 1;
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}
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#else
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chan_value[j][i] = color[j];
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#endif
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}
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}
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#endif
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}
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}
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