Hi all,
Can any one  help me with my slopy assembly language programming

I am trying to build talking clock using
ISD chipcorder for the sound (talking) part
pic microcontroller for the interface
an external clock to feed the pic  (I know that the pic can also be
used as real time clock generator but it can't drive LED directly...
I was told)


the ISD chipcorder is very easy... any one can record a short msg and
reply it back with out difficulties

incase you want to learn more the url address for ISD is

http://www.isd.com/products/

here is a simple example

Example is written for 8051 running up to 12MHz. If frequency is higher,
you should increase TMPReg1 value into Delay procedure (because ISDs
have
debounced PLAYL input).
Here is source :
(VoicePRT defines phisycal locations of messages stored into ISD
eg. Msg #5 starts at location 54, ...)

$INCLUDE(Header.asm)

ISDPlayLPin EQU      P3.3
SayVoic3Pin EQU      P3.4
SayVoic7Pin EQU      P3.5
SilencePin  EQU      P3.7
; ISD Addr pins are connected to P1 port of uC

TMPReg1     EQU      R3
TMPReg2     EQU      R4

$INCLUDE(Init.asm)

Debounce:   JNB      SayVoic3Pin,Debounce
            JNB      SayVoic7Pin,Debounce
            JNB      SilencePin,Debounce
            CALL     Delay

Loop:       MOV      A,#3
            JNB      SayVoic3Pin,SayMsg
            MOV      A,#7
            JNB      SayVoic7Pin,SayMsg
            MOV      A,#0
            JNB      SilcePin,SayMsg
            SJMP     Loop

SayMsg:     SETB     ISDPlayLPin
            CJNE     A,#0,NotSilence
            SJMP     Debounce
NotSilence: CALL     Delay
            MOV      DPTR,#MsgsPTR
            DEC      A
            MOVC     A,@A+DPTR
            MOV      P1,A
            CLR      ISDPlayLPin
            SJMP     Debounce

Delay:      MOV      TMPReg1,#20
Delay1:     MOV      TMPReg2,#255
Delay1Loop: DJNZ     TMPReg2,Delay1Loop
            DJNZ     TMPReg1,Delay1
            RET

MsgsPTR:    DB       0,14,26,40,54,68,83,100,114,131




I also have an assembly  source code for talking thermometer..which I
got from one guy on the stamp news group

the thermometer uses  a pic microcontroller for the interface  and ISD
chipcorder for the sound and dallas IC to sense the temprature.

If you want to see the code let me know.


Thanks for your help.


SAM






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