led_plex/main.asm

   1 ; main file of led_plex project
   2 ;
   3 ; author: hackbard@hackdaworld.org
   4 ;
   5
   6 ; device specific definition file
   7 .include "../include/tn2313def.inc"
   8
   9 ; defines
  10 .def    tmp1            = r16
  11 .def    tmp2            = r17
  12 .def    uart_rxtx       = r18
  13 .def    hc595_sink      = r19
  14 .def    hc595_source    = r20
  15
  16 ;
  17 ; interrupts
  18 ;
  19
  20 ; RESET
  21 rjmp INIT
  22
  23 ; INT0
  24 reti
  25
  26 ; INT1
  27 reti
  28
  29 ; T1 CAPT1
  30 reti
  31
  32 ; T1 COMP A
  33 reti
  34
  35 ; T1 OVF1
  36 rjmp T1_OVF
  37
  38 ; T0 OVF0
  39 rjmp T0_OVF
  40
  41 ; UART RX
  42 rjmp UART_RECEIVE
  43
  44 ; UART UDRE
  45 reti
  46
  47 ; UART TX
  48 reti
  49
  50 ; ANA COMP
  51 reti
  52
  53 ; PCINT
  54 reti
  55
  56 ; T1 COMP B
  57 reti
  58
  59 ; T0 COMP A
  60 reti
  61
  62 ; T0 COMP B
  63 reti
  64
  65 ; USI START
  66 reti
  67
  68 ; USI OVF
  69 reti
  70
  71 ; EE READY
  72 reti
  73
  74 ; WDT OVF
  75 reti
  76
  77 ;
  78 ; init and main code
  79 ;
  80
  81 RESET:
  82 INIT:
  83
  84         ; gio port init
  85         rcall PORT_INIT
  86
  87         ; timer init
  88         ;rcall TIMER_INIT
  89
  90         ; uart init
  91         rcall UART_INIT
  92
  93         ; uart interrupt enable
  94         rcall UART_INT_RX_INIT
  95
  96         ; set stackpointer
  97         ldi tmp1,low(RAMEND)
  98         out SPL,tmp1
  99
 100         ; global interrupt enable
 101         ;sei
 102
 103         ; signal ready output
 104         ldi uart_rxtx,0x68
 105         rcall UART_TX
 106
 107         ; testing ... DO NOT CONNECT LEDS BY NOW !!!
 108         ldi hc595_sink,0xff
 109         ldi hc595_source,0xff
 110         rcall SET_HC595
 111         ldi uart_rxtx,0x61
 112         rcall UART_TX
 113
 114 MAIN:
 115
 116         ; loop forever
 117         rjmp MAIN
 118
 119
 120 ; include subroutines
 121 .include "port.asm"
 122 .include "timer.asm"
 123 .include "uart.asm"
 124
 125
 126 ;
 127 ; interrupt routines
 128 ;
 129
 130 T1_OVF:
 131         reti
 132
 133 T0_OVF:
 134         reti
 135
 136 UART_RECEIVE:
 137         reti
 138