isd4002-120 recording circuit.htm

ISD4002 Recording Circuit

      circuit has recorded from address 000h to 027h. If you want to record 
      another message you must set the address to 028h or else you will write 
      over the first message. In my window program I automatically increase the 
      address by 1 after a recording. In the left pic you can see that the 
      recording stopped ad adress 027h and the adress setting (white box) has 
      incresed by one (028h). You can now simply record another message without 
      thinking about the address setting. </TD></TR></TBODY></TABLE><BR><B>SET 
PLAY:</B><BR>This button (command) make the circuit play the sound, starting at 
the address you have defined in the address setting box (A9-A0). The ISD4002-120 
will continue to play the sound until it reaches and EOM.<BR><BR><B>SET 
REC:</B><BR>This button (command) works in the same way, but here you will 
record a sound, starting at the address you have defined in the address setting 
box (A9-A0). The recording will end and make a EOM when you press the STOP 
button (STOP command sent).<BR><BR><B>POWER UP:</B><BR>This button (command) 
wakes the circuit.<BR><BR><B>PLAY:</B><BR>Play works in the same way as SET PLAY 
except that the address will NOT be set with (A9-A0). The address will be the 
current address in the circuit. The ISD4002-120 will continue to play the sound 
until it reaches and EOM.<BR><BR><B>REC:</B><BR>Rec works in the same way as SET 
REC except that the address will NOT be set with (A9-A0). The address will be 
the current address in the circuit. The ISD4002-120 will continue to rec the 
sound until you press the STOP button (STOP command is sent). 
<BR><BR><B>STOP:</B><BR>This button (command) stop any activity as a PLAY or 
REC.<BR><BR><B>Address position:</B><BR>Here you can see the position star and 
end of a recording witch can be important to note when you are going to use the 
circuit in an application.<BR><BR><B>Timing:</B><BR>Here you can see the timing 
in second.<BR><BR><B>Wave Recording:</B><BR>If you want to rec a wav file into 
the circuit you must first open a file and if you want you press the button 
"Test play" to listen to the file. If you press the button "Rec wav" the file 
will be played and the ISD4002-120 circuit will record the sound, starting at 
the address you have specified in the address setting box.<BR>It is important to 
set the address before you press "Rec wav" button or else you might get wrong 
address.<BR><BR><FONT face=Arial color=#0080ff size=3><B>Summary of the 10 
command for the ISD4002-120 circuit:</B></FONT><BR>
<TABLE cellSpacing=0 cellPadding=1 width=600 bgColor=#cddefe border=1>
  <TBODY>
  <TR>
    <TD width=80><B>Instruction</B></TD>
    <TD width=150><B>OP (code 5 bits)<BR>Address (11bits)</B></TD>
    <TD><B>Operational summary</B></TD></TR>
  <TR>
    <TD width=80>POWERUP</TD>
    <TD width=150>00100(XXXXXXXXXXX)</TD>
    <TD>Power up circuit.</TD></TR>
  <TR>
    <TD width=80>SETPLAY</TD>
    <TD width=150>11100(0, A9-A0)</TD>
    <TD>Initiates playback from address (a9-a0).</TD></TR>
  <TR>
    <TD width=80>PLAY</TD>
    <TD width=150>11110(XXXXXXXXXXX)</TD>
    <TD>Playback from current address (Until EOM or OVF).</TD></TR>
  <TR>
    <TD width=80>SETREC</TD>
    <TD width=150>10100(0, A9-A0)</TD>
    <TD>Initiates a record operation from address (a9-a0).</TD></TR>
  <TR>
    <TD width=80>REC</TD>
    <TD width=150>10110(XXXXXXXXXXX)</TD>
    <TD>Record from current address (Until OVF is reached).</TD></TR>
  <TR>
    <TD width=80>SETMC</TD>
    <TD width=150>11101(0, A9-A0)</TD>
    <TD>Initiates Message cueing (MC) from address (a9-a0).</TD></TR>
  <TR>
    <TD width=80>MC</TD>
    <TD width=150>11111(XXXXXXXXXXX)</TD>
    <TD>Performe a message cueing. Proceeds to the end of the current message 
      (EOM).</TD></TR>
  <TR>
    <TD width=80>STOP</TD>
    <TD width=150>0X110(XXXXXXXXXXX)</TD>
    <TD>Stop current operation.</TD></TR>
  <TR>
    <TD width=80>STOPPWRDN</TD>
    <TD width=150>0X010(XXXXXXXXXXX)</TD>
    <TD>Stop current operation and enter stand-by (power down) mode.</TD></TR>
  <TR>
    <TD width=80>RINT</TD>
    <TD width=150>0X110(XXXXXXXXXXX)</TD>
    <TD>Read interupt status bits:Overflow and 
EOM.</TD></TR></TBODY></TABLE><BR><FONT face=Arial color=#0080ff 
size=3><B>Download PIC16F84 program (INHX8M format)</B><BR></FONT>
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  <TBODY>
  <TR>
    <TD><A href="http://hem.passagen.se/communication/pic/istest.zip" 
      target=pr4>istest.zip</A></TD>
    <TD>istest.hex, the file is zipped!</TD></TR></TBODY></TABLE><BR><FONT 
face=Arial color=#0080ff size=3><B>Download some datasheets</B><BR></FONT>
<TABLE cellSpacing=0 cellPadding=0 width=480 bgColor=#f7dffd border=1>
  <TBODY>
  <TR>
    <TD><A href="http://www.elfa.se/pdf/73/731/07311400.pdf" 
      target=pr4>07311400.pdf</A></TD>
    <TD>Datasheets for ISD4002-120</TD></TR></TBODY></TABLE><BR><FONT face=Arial 
color=#0080ff size=3><B>Download software</B><BR></FONT>
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  <TBODY>
  <TR>
    <TD bgColor=#c7f5fe colSpan=2><STRONG>
      <DIV align=center>Download windows software</STRONG><BR><FONT face=Arial 
      color=#000000 size=4>isd4002.zip (1.57Mb)</FONT></DIV></TD></TR>
  <TR>
    <TD><FONT face=Arial size=2><A 
      href="http://hem.passagen.se/communication/software.html" target=se3>
      <DIV align=center>Click here to go to the software download 
      page!</DIV></A></FONT></TD></TR></TBODY></TABLE><BR><BR><FONT face=Arial 
color=#0080ff size=3><B>Final word</B></FONT><BR>I hope you will enjoy audio 
recording-project.<BR>I also hope I have given you some new ideas and knowledge. 
<BR>You can always mail me if there is anything unclear. <BR>In some case I can 
help you with components if you can't find them.<BR><BR>I wish you good luck 
with your projects and thanks for visit my page. 
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