terom@29: .nolist
terom@29: .include "m168def.inc"      ; Same family as 328P
terom@29: .list
terom@29: 
terom@29: ;; Interrupt Vector
terom@29: .org 0x00
terom@29:         rjmp        init
terom@29: 
terom@29: .org OC1Aaddr
terom@29: 		; Timer/Counter1 Compare Output A
terom@29: 		rjmp		Timer_OC1A
terom@29: 
terom@29: .org OC0Aaddr
terom@29:         ; Timer/Counter0 Compare Output A
terom@29:         rjmp        Timer_OC0A
terom@29: 
terom@29: .org 0x40
terom@29: 
terom@29: ;; Syntax
terom@29: .include "macros.inc"
terom@29: 
terom@29: ;; Timer0 Compare A handler
terom@29: Tick:
terom@29: 	; Toggle
terom@29: 		sbi			PIND, PORTD7
terom@29: 
terom@29: 		ret
terom@29: 
terom@29: ;; Timer
terom@29: .set TIMER0_CB_A = Tick
terom@29: .include "timer.inc"
terom@29: 
terom@29: Main:
terom@29: init:
terom@29:     ; Stack
terom@29:         ldi         r16, high(RAMEND)
terom@29:         ldi         r17, low(RAMEND)
terom@29:         out         SPH, r16
terom@29:         out         SPL, r17
terom@29: 
terom@29:     ; Enable interrupts
terom@29:         sei
terom@29: 
terom@29: 	; Turn off LED7
terom@29: 		sbi			DDRB, PORTB1
terom@29: 		sbi			PORTB, PORTB1
terom@29: 
terom@29: 
terom@29: 	; DEBUG
terom@29: 		sbi			DDRD, PORTD7
terom@29: 		cbi			PORTD, PORTD7
terom@29: 
terom@29: 		sbi			DDRD, PORTD6
terom@29: 		sbi			DDRD, PORTD5
terom@29: 		
terom@29: 
terom@29:     ; Timer
terom@29: 		; setup
terom@29:         rcall       Timer0_Init
terom@29: 		
terom@29: 		; run with 255k cycles
terom@29: 		ldi			r16, 255
terom@29: 		rcall		Timer0_Start	
terom@29: 
terom@29: loop:
terom@29: 	; Run timer
terom@29: 		rjmp		loop
terom@29: