ok I have created a new file and inserted your code with some of my code required for access to the EEPROM but when I run this code nothing gets written to the chip.
This is the complete code:
I've been struggling with this almost nonstop for a couple of days and I believe that either I think I am working with a 24LC16 chip and it is not or I have a hardware issue. The EEPROM chip is not visually accessible but my PonyProg application is detecting it as"2416" - Device type "2402-16"Code:@ __config _INTOSC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF clear DEFINE OSC 4 TRISB = %00001000 CMCON = 7 ; Disable comparator OPTION_REG = 0 Activate var PORTB.2 ; 1 = access eeprom / 0 = normal operation GO VAR PORTB.3 ; Start switch OK VAR PORTB.4 ; Green LED NOTOK var PORTB.5 ; Red LED Dat VAR byte[16] i var word j var Byte SDA var PORTA.2 SCL VAR PORTA.3 CntrB var Byte Addr var byte activate = 1 for i = 0 to 15 lookup i, [$01,$01,$01,$3c,$3c,$3c,$3c,$3c,$3c,$08,$08,$08,$21,$21,$21,$FF], j Dat[i] = j next for i = 0 to $7F0 step 16 'End at 2048-16 = $7F0 CntrB = %10100000 CntrB.3 = i.10 CntrB.2 = i.9 CntrB.1 = i.8 Addr = i.lowbyte i2cwrite SDA,SCL,CntrB,Addr,[str Dat\16] pause 10 next activate = 0 end
This is my hardware and I ruled out any discrepancies between my drawing and actual PCB:
Thanks for your time,
Mike




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