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bendre_b Newbie
bendre_b
1 posts since
Feb 24, 2010
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Mar 7, 2010 11:38 PM

How to interface 2 Wire Serial EEPROM (AT24C1024) externally with R8C27?

          I am trying to interface  2 Wire Serial EEPROM (AT24C1024) externally with R8C27 controller using inbuild I2C bus.

But unable to do so.Please Help Me.Can anyone forward me Source code/Reference Code for the same.Thank You.

FrankL Apprentice
FrankL
1,100 posts since
Mar 16, 2009
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Mar 8, 2010 12:49 AM in response to: bendre_b
Re: How to interface 2 Wire Serial EEPROM (AT24C1024) externally with R8C27?

http://www.renesas.com/support/downloads/download_results/C2010401-C2010500/an_rej05b1029_r8c_iic.jsp

iValeria Newbie
iValeria
20 posts since
Mar 2, 2010
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Mar 8, 2010 1:12 AM in response to: bendre_b
Re: How to interface 2 Wire Serial EEPROM (AT24C1024) externally with R8C27?

Can I ask you a question about this argument?

I think that you need an external eeprom because to have a larger memory, indeed.

But did you ever try to write in on-chip flash memory?

 

Thank you

Valeria

FrankL Apprentice
FrankL
1,100 posts since
Mar 16, 2009
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Mar 8, 2010 2:27 AM in response to: iValeria
Re: How to interface 2 Wire Serial EEPROM (AT24C1024) externally with R8C27?

I don't understand your question. The manual describes how to write to on-chip flash, and there is an application note "Simple Flash API" showing how to do this.

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