samuel Haile wrote:
>
> 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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Now is more easy to play with a ISD, because the ISD33000 series have a
SPI protocol.

Miguel.