AVR-Chat

Do you have a link to the SD you use?  Steve

 

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Rene Teo
Sent: Thursday, December 20, 2007 4:00 PM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] Re: i2c flash memory

 

Hi John,

About the largest I2C EEPROM's that I am aware of are 1Mbit capacity.

Is there a reason why you would not want to go the SPI route? Atmel
has several serial flashes in the 8-128Mbit range. A 16Mbit serial flash
is less than $2 and offers the advantage of higher access speeds.

I was in the same situation several months ago and looked at the Atmel
serial flashes. However, I have decided to go with SD (since I can use
an SPI interface with them) and 1GB cards today are at $6 or so.

Rene T.

----- Original Message ----- 
From: Steven Hodge 
To: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>  
Sent: Thursday, December 20, 2007 4:35 PM
Subject: RE: [AVR-Chat] Re: i2c flash memory

I need much higher capacity, 1 MB (8 Mbit) minimum, for data logging.

From: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com>
[mailto:AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com> ] On
Behalf
Of John
Sent: Thursday, December 20, 2007 2:52 PM
To: AVR-Chat@yahoogroups.com <mailto:AVR-Chat%40yahoogroups.com> 
Subject: [AVR-Chat] Re: i2c flash memory

Why is it required to be flash. There are I2C EEPROM's supporting
over 1 million write cycles. This for me is more than sufficient. 
i.e. 24LC256

John C

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