[51] need help regarding at89s52.

[Alex T Mundaippally]

i have a microcontroller at89s52 and eeprom at24c256. can i connect eeprom directly to the controller without interface unit?? please help me

 

[jayanth.devarayanadurga]

It is a I2C eeprom. AT89S52 doesn't have hardware I2C so you have to write software I2C code. It is better to use SPI eeprom like 25LC256 and write software SPI code.

 

[Alex T Mundaippally]

where can i get the software i2c code???

 

[jayanth.devarayanadurga]

saeedsolutions.blogspot.com and the book "8051 Microcontroller and Embedded Systems" by Kenneth J Ayala.