> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On
Behalf
> Of Richard Seriani, Sr.
> Sent: Sunday, January 20, 2008 6:57 AM
> To: piclist@mit.edu
> Subject: [PIC] Audio ADC-DAC Problems
> 
> 
> All.
> 
> Somewhat long description, but I thought background info may help.
> 
> I am using a PIC16F88, 25LC1025 EEPROM, and MCP4822 DAC to record and
play
> back spoken audio. Communication between the PIC, EEPROM, and DAC is
SPI.
> Input audio is from a microphone and amp and is approximately 3-4Vpp,
> depending on how loud one talks. Input and output filters are 4kHz
> passive.This circuit uses an internal 4MHz oscillator and the ADC
clock is
> fosc/8, or 500kHz (2us).

How are you handling the EEPROM write time which is probably of the
order of 4-5ms?  E.g. do you buffer the ADC samples during writes?

Regards

Mike

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