Pic+isd4002

[mister_e]

Just a teaser. I'll not post the whole thing, just the pin assignement.

    ' LCD definition
    ' ==============
    ' 
    DEFINE LCD_DREG PORTA  ' 
    DEFINE LCD_DBIT 0      ' LCD data port : PORTA<3:0>
                           '
    DEFINE LCD_EREG PORTA  ' 
    DEFINE LCD_EBIT 6      ' LCD enable bit : PORTA.6
                           '
    DEFINE LCD_RSREG PORTA ' 
    DEFINE LCD_RSBIT 7     ' LCD RS bit : PORTA.7


    ' I/O Definition
    ' ===============
    '
    TRISA = %00110000    ' PORTA Output on :
                         '         PORTA<3:0> : LCD data 
                         '         PORTA<7:6> : LCD RS & E bit
                         '
                         ' PORTA Input on :
                         '         PORTA.4 : "ALT PLAY" Button
                         '         PORTA.5 : "PLAY" button    
                         '
    TRISB = %11110001    ' PORTB Output on : 
                         '         PORTB.1 : ISD4002 SS pin 
                         '         PORTB.2 : ISD4002 SCLK pin 
                         '         PORTB.3 : ISD4002 MOSI pin
                         '
                         ' PORTB Input on :
                         '         PORTB.0 : ISD4002 INT pin
                         '         PORTB.4 : ISD4002 MISO pin
                         '         PORTB.5 : ISD4002 RAC pin
                         '         PORTB.6 : "SETUP" button
                         '         PORTB.7 : "RECORD" button
    OPTION_REG.7 = 0     ' enable pull-up on PORTB
    CMCON = 7            ' disable analog comparator
    
    
    ' Variable definition
    ' ===================
    '
    AltPlay              var PORTA.4 ' "ALT PLAY" button
    Play                 var PORTA.5 ' "PLAY" button
    Setup                var PORTB.6 ' "SETUP" button
    Record               var PORTB.7 ' "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.3 ' ISD4002 MOSI pin
    MISO                 var PORTB.4 ' ISD4002 MISO pin
    RAC                  var PORTB.5 ' ISD4002 RAC pin

Was setup on 16F628, you'll need to use SHIFTIN/SHIFTOUT

[anderson037]

The melabs LAB-XT board has a socket for this family of ISD chip. You can download the schematic and sample code:

http://melabs.com/products/labxt.htm

[julioelectronic]

I watch the circuit that you recommended to me anderson , but the only thing that my circuit do, are sounds when pic send the pulses to isd, good i will continue treating, thanks for the help.

[mister_e]

http://www.picbasic.co.uk/forum/sear...searchid=56714

[julioelectronic]

ok amigos it works, my error was software, ss enable/ disable.

[leejongfan]

Hi,
I am using PIC16f877
I think we have to program in SPI mode,right?
for SPI, we only can send 8 bit at one time, but the opcode need 16 bits.
Am I right to say we cannot use PIC16f877

[angie14]

hi, i want to know how to program a ISD 4002 to record some files and play them