Subject:
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tic2int
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 29 Oct 1997 18:58:31 GMT
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Original-From:
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Anton L Wirsch <tanis@et.{stopspam}byu.edu>
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Viewed:
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1592 times
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Hello, I'm new to the world of the HB. I'm trying to get TIC2INT to work
off the digital(8) but its not working. The code I used is below and
ideas where I went wrong?
#include "include\6811regs.asm"
ORG MAIN_START
variable_oto:
FDB 00
subroutine_intialize_module:
#include "include\findx.asm"
ldd TIC2INT,X
std interrupt_code_exit+1
ldd #interrupt_code_start
std TIC2INT,X
ldaa #%00000100
staa TCTL2,X
bclr TFLG1,X $fd
bset TMSK1,X $02
rts
interrupt_code_start:
#include "include\findx.asm"
ldaa variable_oto
adda #1
staa variable_oto
bclr TFLG1,X $fd
interrupt_code_exit:
jmp $0000
Thanks all
-Anton
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Message has 1 Reply:
 | | Re: tic2int
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| (...) You are indexing off the X register without ever setting it. To access the TIC2INT interrupt vector I think you first need to do LDX #$BF00 To access the other things like TCTL2 etc first do LDX #$1000 Good luck, /Max (27 years ago, 29-Oct-97, to lugnet.robotics.handyboard)
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