ATmega162 Serial and PWM are Working

Hey! Enki has moved his blog to Armyofevilrobots.com. Check it out after you are done here. This page is going nowhere though...

Not exactly for robots, but it applies. I have gotten serial and PWM up on an ATmega162 uController. I love the GNU toolchain that is available for this chip. I have included some code below in case you are having trouble getting your serial connection up on this chip....

#include 
#include 
#include 
#include 
#ifndef _AVR_SFR_DEFS_H_
#include 
#endif

#if defined(__AVR_ATmega162__)
#  define OC1 PD5
#  define DDROC DDRD
#  define OCR OCR1A
#else
#  error "Don't know what kind of MCU you are compiling for"
#endif


void ioinit(){
	DDRC=0xFF;
	DDRB=0xFF;
	
			// bit 0 & bit 1 = 8 bits pwm
			// bit 2 + 3 = force output // + toggle the output
	TCCR0= ((_BV(WGM00))|
		(_BV(WGM01))|
		(_BV(COM01))|
		(_BV(COM00))|
		(_BV(CS02)));
		
		
	TCCR2= ((_BV(WGM20))|
		(_BV(COM21))|
		(_BV(COM20))|
		(_BV(CS20))|
		(_BV(CS21))|
		(_BV(CS22))
		);	
			//Set phase correct PWM, 	
	OCR2=128;
	OCR0=128;			
	sei();
	
}

void ser_init(){
	DDRD =2;	//Just to ensure the port can send/receive.
	
	UBRR0H=	0;
	UBRR0L=	29&255;
	UCSR0B=	_BV(RXEN0)|
		_BV(TXEN0);
	UCSR0C=	(1<

Posted by Enki at April 15, 2004 03:55 PM
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