Well, I figured out my problem. I had the wrong value for SetPlay. Once I found that, everything worked fine. Here is the updated code:
Code:
@ DEVICE HS_OSC ; Hi Speed Osc
@ DEVICE WDT_ON ; Enable Watch dog timer
@ DEVICE PWRT_ON ; Disable MCLR pin
@ DEVICE MCLR_OFF ; Enable Power-up timer
@ DEVICE BOD_OFF ; Enable Brown-out detect
@ DEVICE CPD_OFF ; Code Protect Off
@ DEVICE PROTECT_OFF ; EEPROM Protect Off
include "ModeDefs.bas"
DEFINE OSC 20
' I/O Definition
' ===============
'
TRISA = %00001100 ' PORTA Output on :
' PORTA.0 : Record LED
' PORTA.1 : Play Led
'
' PORTA Input on :
' PORTA.2 : "ALT PLAY" Button
' PORTA.3 : "PLAY" button
'
TRISB = %01111001 ' PORTB Output on :
' PORTB.1 : ISD4002 SS pin
' PORTB.2 : ISD4002 SCLK pin
' PORTB.7 : ISD4002 MOSI pin
'
' PORTB Input on :
' PORTB.0 : ISD4002 INT pin
' PORTB.5 : ISD4002 MISO pin
' PORTB.6 : ISD4002 RAC pin
' PORTB.3 : "SETUP" button
' PORTB.4 : "RECORD" button
OPTION_REG.7 = 0 ' enable pull-up on PORTB
CMCON = 7 ' disable analog comparator
' Variable definition
' ===================
'
RecordLED var PORTA.0
PlayLED var PORTA.1
AltPlayBtn var PORTA.2 ' "ALT PLAY" button
PlayBtn var PORTA.3 ' "PLAY" button
StopBtn var PORTB.3 ' "STOP" button
RecordBtn var PORTB.4 ' "RECORD" button
INT var PORTB.0 ' ISD4002 INT pin
SS var PORTB.1 ' ISD4002 SS pin
SCLK var PORTB.2 ' ISD4002 SCLK pin
MOSI var PORTB.7 ' ISD4002 MOSI pin
MISO var PORTB.5 ' ISD4002 MISO pin
RAC var PORTB.6 ' ISD4002 RAC pin
' ISD4002 Control Values:
' bits 0, 1 & 2 are actually bits 9, 10 & 11 of address
' CCCCCAAA
' 43210119
' 10
CmdPwrUp con $20 '%00100000 Power up the device
CmdPlay con $F0 '%11110000 Start playback
CmdRec con $B0 '%10110000 Start recording
CmdStop con $30 '%00110000 Stop current operation
CmdStopPwrDn con $10 '%00010000 Stop playback or record and power down
CmdSetPlay CON $E0 '%11100000 Set the playback address
CmdSetRec CON $A0 '%10100000 Set the record address
ISDAddress var word
'****************************************************************
Pause 500
high PlayLed
HIgh RecordLED
pause 500
low PlayLed
Low recordled
Start: 'scan buttons
if Recordbtn = 1 then
high recordLED
pause 250
gosub RecordAudio
low RecordLED
endif
if PlayBtn = 1 then
high PlayLED
pause 250
gosub PlayBack
low PlayLED
endif
goto Start
'****************************************************************
RecordAudio: ' Record message
LOW SS 'Select isd4002
SHIFTOUT MOSI,SCLK,LSBFIRST,[CmdPwrUp\8]
HIGH SS 'De-Select isd4002
PAUSE 25
LOW SS
SHIFTOUT MOSI,SCLK,LSBFIRST,[CmdPwrUp\8]
HIGH SS
PAUSE 50
'There are 600 memory blocks in the 4002. Each block is 200 mS long.
'start recording at address 16 (= $10, %00010000)
' this is 3.2 seconds in (200 mS/address) 16*0.200 = 3.2
ISDAddress.lowbyte = $10
ISDAddress.Highbyte = CmdsetRec '(= $A0, %10100000)
'ISDAddress = $A010, %10100000 00010000
LOW SS
SHIFTOUT MOSI,SCLK,LSBFIRST,[ISDAddress\16]
HIGH SS
Wait4Stop:
if StopBtn = 0 then goto Wait4Stop
gosub StopOp 'Issue Stop Operation cmd
return
'****************************************************************
PlayBack: ' Play Audio
LOW SS
SHIFTOUT MOSI,SCLK,LSBFIRST,[CmdPwrUp\8]
HIGH SS
PAUSE 25
'start playback from address 16 (=$10)
ISDAddress.lowbyte = $10
ISDAddress.Highbyte = CmdsetPlay '(=$E0)
LOW SS
SHIFTOUT MOSI,SCLK,LSBFIRST,[isdaddress\16] 'Start Playback
HIGH SS
pause 25
Wait4Done:
if int = 1 and StopBtn = 0 then goto wait4done
gosub StopPwrDn
return
'****************************************************************
StopPwrDn: ' Reset ISDInt and power down cmd
LOW SS
SHIFTOUT MOSI,SCLK,LSBFIRST,[CmdStopPwrDn\8]
HIGH SS
pause 20
return
'****************************************************************
StopOp: ' Stop Operation
LOW SS
SHIFTOUT MOSI,SCLK,LSBFIRST,[CmdStop\8]
HIGH SS
pause 20
return
'****************************************************************
end
ISD4002 Address Question
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