/*!
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/*!
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lightshow -- lightshow on Experimental Board 1.10
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lightshow -- lightshow on Experimental Board 1.10
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Copyright (C) 2009-2010 ZTEX e.K.
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Copyright (C) 2009-2014 ZTEX GmbH
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http://www.ztex.de
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http://www.ztex.de
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This program is free software; you can redistribute it and/or modify
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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 version 3 as
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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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, see http://www.gnu.org/licenses/.
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along with this program; if not, see http://www.gnu.org/licenses/.
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!*/
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!*/
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#include <avr/io.h>
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#include <avr/io.h>
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#define F_CPU 32000000UL
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#define F_CPU 32000000UL
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#include <util/delay.h>
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#include <util/delay.h>
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typedef uint8_t byte;
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typedef uint8_t byte;
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int main(void)
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int main(void)
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{
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{
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// enable 32.768 kHz, 32 MHz, 2 Mhz clocks
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// enable 32.768 kHz, 32 MHz, 2 Mhz clocks
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asm volatile (
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asm volatile (
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"ldi r24,0xd8" "\n\t"
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"ldi r24,0xd8" "\n\t"
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"ldi r23,7" "\n\t"
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"ldi r23,7" "\n\t"
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"out 0x34,r24" "\n\t"
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"out 0x34,r24" "\n\t"
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"sts 0x50,r23"
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"sts 0x50,r23"
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::: "r24", "r23"
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::: "r24", "r23"
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);
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);
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// wait until clocks are ready
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// wait until clocks are ready
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while ( (OSC.STATUS & 7) != 7 ) { }
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while ( (OSC.STATUS & 7) != 7 ) { }
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// enable run time configuration of 32 MHz and 2 MHz clocks; select 32 MHz clock as system clock
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// enable run time configuration of 32 MHz and 2 MHz clocks; select 32 MHz clock as system clock
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asm volatile (
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asm volatile (
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"ldi r24,0xd8" "\n\t"
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"ldi r24,0xd8" "\n\t"
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"ldi r23,1" "\n\t"
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"ldi r23,1" "\n\t"
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"out 0x34,r24" "\n\t"
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"out 0x34,r24" "\n\t"
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"sts 0x60,r23" "\n\t"
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"sts 0x60,r23" "\n\t"
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"out 0x34,r24" "\n\t"
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"out 0x34,r24" "\n\t"
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"sts 0x68,r23" "\n\t"
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"sts 0x68,r23" "\n\t"
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"out 0x34,r24" "\n\t"
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"out 0x34,r24" "\n\t"
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"sts 0x40,r23"
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"sts 0x40,r23"
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::: "r24", "r23"
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::: "r24", "r23"
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);
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);
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// disable JTAG at portb
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// disable JTAG at portb
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asm volatile (
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asm volatile (
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"ldi r24,0xd8" "\n\t"
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"ldi r24,0xd8" "\n\t"
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"ldi r23,1" "\n\t"
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"ldi r23,1" "\n\t"
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"out 0x34,r24" "\n\t"
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"out 0x34,r24" "\n\t"
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"sts 0x96,r23" "\n\t"
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"sts 0x96,r23" "\n\t"
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::: "r24", "r23"
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::: "r24", "r23"
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);
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);
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// clock output to PD7
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// clock output to PD7
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PORTCFG.CLKEVOUT = 2;
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PORTCFG.CLKEVOUT = 2;
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PORTD.DIR = 128;
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PORTD.DIR = 128;
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PORTJ.DIR = 0; // input: 4 LED's
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PORTJ.DIR = 0; // input: 4 LED's
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PORTH.DIR = 0; // input: 8 LED's
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PORTH.DIR = 0; // input: 8 LED's
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PORTD.DIR |= 15; // output: 4 LED's
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PORTD.DIR |= 15; // output: 4 LED's
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PORTF.DIR = 255; // output: 8 LED's
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PORTF.DIR = 255; // output: 8 LED's
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while (1) {
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while (1) {
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PORTD.OUT = PORTJ.IN;
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PORTD.OUT = PORTJ.IN;
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PORTF.OUT = PORTH.IN;
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PORTF.OUT = PORTH.IN;
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}
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}
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}
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}
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