read/write to a AT25020 EEPROM using SPI

[john2020]

Hi All!

I am using C167CR-LM microcontroller with 2K serial EEPROM (AT25020). I read the datasheet of the same and from what I understand to read the serial EEPROM I need to first pull CS low, write the command to read then pass the address and then write some garbage into the EEPROM to shift the clock and get the data out. I did exactly the same and had no luck.

Second I wanted to write into it and followed the write sequence described, but was also out of luck.

Can any one help me with a example code in C. I searched the web for some examples to write and read from serial EEPROM's but could not find any. I would be very glad if anyone can point to me some.

Regards

john

 

[silvio]

Hi John,

Your last visit was on 11/25/05 16:56.

https://www.keil.com/discuss/docs/thread4223.htm

 

[john2020]

hi silvino

i accept that my friend had visited there last day,also it was with his consent that the same question was asked here,as it was posted by my friend there.You just can't say that i just copied and pasted here,if it was done so,it was only to clarify certain aspects of our ongoing project.there was absolutely no other bad intentions behind that.i got many responses here for the project and we're able to clarify certain things,which were not clear to us.i will make sure this won't happen here anymore,questions won't be repeated anymore.
regards
john