Interfacing AT24c64 with 89c52 problem while reading & writing

[Jenifer]

Hai…..

 

     while reading the eeprom it shows some garbage values.can anyone please tell me why is it so?

[AJISH ALFRED]

Hi Jenifer,

So many things could go wrong, like in your hardware make sure that you have connected the SDA and SCK lines to VCC through a resistor. Check you have connected the address pins A0, A1 of the EEPROM. 

In your code make sure that you are using the same address to access the EEPROM. 

[Jenifer]

Dear sir,

           I am using AT24c64 and AT89c52. the resistor value am using is 22k. Is that enough or i have to make some alterations in resistor value? if it so means please tell me the resistor value……  

 

Thanks in advance….

[Jenifer]

Dear sir,

 

         My problem is, i had stored some values in eeprom. while reading the stored values it shows some values which i was not stored in e2prom. can u please tell me where is the problem is and what alterations i have to do, to clear this bug.

 

Thanks in advance……..

[Ashutosh Bhatt]

pls post here problems, doubts, queries only

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