Memory 24LC1015

[mpardinho]

i old post sad
"You should use control address $A0 for write and $A1 for read (for lower), while (for upper) $A8 for write and $A9 for read"

If i use $A0 for write and $A1 work block 1 - 0 to $FFFF
If i use $A8 for write and $A9 not work block 2

need A2 pin tied high?

   INCLUDE "modedefs.bas"
   Include "AllDigital.pbp"
   
'-------------------------------------------------------------------------------   

   #CONFIG
      __CONFIG _CONFIG1, _FOSC_INTOSC & _IESO_OFF & _WDTE_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_ON
      __CONFIG _CONFIG2, _PLLEN_OFF
   #ENDCONFIG
   
'-------------------------------------------------------------------------------   

   @ errorlevel -202
   @ errorlevel -306
         
'-------------------------------------------------------------------------------
         
   DEFINE   HSER_RCSTA    90h
   DEFINE   HSER_TXSTA    20h
   DEFINE   HSER_BAUD     9600
   DEFINE   HSER_CLROERR  1
   
'-------------------------------------------------------------------------------
 
   I2C_Clock         var   PORTA.0
   I2C_Data          var   PORTC.1   

'-------------------------------------------------------------------------------
   
   B0       var   byte
   B1       var   byte
   B2       var   byte

   I        var   word
   Letra    var   byte

'---[ Boot ]--------------------------------------------------------------------
Boot:

   DEFINE OSC 16
     
   OSCCON = %01111000
           ' x------- SPLLEN: don't care when _PLLEN_OFF in config fuse
           ' -1111--- Internal clock = 16MHz
           ' -----x-- Unimplemented
           ' ------00 System Clock Source = Determined by Config Word        
   
'-------------------------------------------------------------------------------

   PORTA = 0
   PORTC = 0
   
   LATA = 0
   LATC = 0
   
   TRISA = %00000110
   TRISC = %00100001
  
   PAUSE 100
   hSerout [13, "START", 13]   
   PAUSE 10

'-------------------------------------------------------------------------------
Main:

   Letra = 0
   For i = 0 To 15
      Letra = 65 + I
      I2CWRITE I2C_Data, I2C_Clock, $A8, I, [Letra]
      PAUSE 5
    
      hSerout [Letra]
   Next i

Teste:
   
   hSerout [13, "----------", 13]
      
   For i = 0 To 15
      I2Cread I2C_Data, I2C_Clock, $A9, I, [Letra]      
      pause 5
      
      hSerout [Letra]
   Next i

   hSerout [13]
'Goto Teste
END

'-------------------------------------------------------------------------------

[Demon]

I don't see pin A2 used?

Are you missing DEFINES for USART?

What PIC are you using?

Have you tried an I2C sample program first?

Robert

[EarlyBird2]

Yes A2 on the eeprom has to be tied high

[EarlyBird2]

I can not find datasheet for 24LC1015 did you mean 24LC1025?