From 313be20fb0a901721521b5b68009bbc8c7605f37 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@mur.at>
Date: Mon, 26 Sep 2011 21:19:25 +0000
Subject: dtmf decoder works

git-svn-id: https://svn.spreadspace.org/mur.sat@168 7de4ea59-55d0-425e-a1af-a3118ea81d4c
---
 software/ihu/ihu.asm | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'software/ihu/ihu.asm')

diff --git a/software/ihu/ihu.asm b/software/ihu/ihu.asm
index 55d79a7..f763407 100644
--- a/software/ihu/ihu.asm
+++ b/software/ihu/ihu.asm
@@ -134,10 +134,20 @@ STATUS_TEMP   EQU H'007F'
   bcf       STATUS,RP0
   bcf       STATUS,RP1
 
+  btfsc     INTCON,INTF
+  goto      int_dtmf
   btfsc     PIR1,RCIF
   goto      int_uart_rx
   goto      interrupt_end
 
+int_dtmf
+  movf      PORTD,w
+  andlw     b'00001111'
+  call      dtmfSign
+  movwf     TXREG
+  bcf       INTCON,INTF
+  goto      interrupt_end
+  
 int_uart_rx
   call      uart_rx_byte
   btfsc     PIR1,RCIF
@@ -203,12 +213,12 @@ init
   bcf       STATUS,RP1
   movlw     b'10010000'
   movwf     RCSTA
-  movlw     B'01000000'
+  movlw     B'01010000'
   movwf     INTCON
   
   clrf      PORTB
   
-  bsf       PORTD,DTMF_PWRDWN
+  bcf       PORTD,DTMF_PWRDWN
   bcf       PORTD,TTX_RESET     ;reset TTX
   bcf       PORTD,TTX_SCL
   bcf       PORTD,TTX_SDA
@@ -271,6 +281,8 @@ main
   btfsc     STATUS,Z
   goto      main
 
+  goto      main
+  
   movlw     BUF
   movwf     FSR
   call      rtc_get_time
-- 
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