beginners/pld_stily.asm

   1 ;
   2 ; pld for stily (and yvonne) ;)
   3 ;
   4 ; author: hackbard@hackdaworld.org
   5 ;
   6
   7 .include "../include/2313def.inc"
   8
   9 ; ------------------
  10 ; interrupt vectors:
  11 ; ------------------
  12 ; reset
  13 rjmp INIT
  14 ; int0
  15 reti
  16 ; int1
  17 reti
  18 ; timer/counter capt 1
  19 reti
  20 ; timer/counter compare
  21 reti
  22 ; timer/counter overflow 1
  23 rjmp INC_LASER_COUNT
  24 ; timer/counter overflow 0
  25 reti
  26 ; uart rx complete
  27 reti
  28 ; uart data register empty
  29 reti
  30 ; uart tx complete
  31 reti
  32 ; analog comparator
  33 reti
  34
  35 INIT:
  36 ; set stackpointer
  37 ldi r16,low(RAMEND)
  38 out SPL,r16
  39 ; timer 0 setting
  40 ldi r16, 3
  41 out TCCR1B, r16
  42 ; timer 0 enable
  43 ldi r16, (1<<TOIE1)
  44 out TIMSK, r16
  45 ; registers
  46 ldi r23,0
  47 ldi r24,0
  48
  49 MAIN:
  50 rcall SET_FREQ ; read/set frequency from adc
  51
  52 rjmp MAIN
  53
  54 SET_FREQ:
  55
  56
  57 INC_LASER_COUNT:
  58 inc r23
  59 reti
  60
  61 TOGGLE_LASER:
  62 inc r24
  63 reti
  64
  65