gnupic: Need EE/Flash ROM recommendation
Subject:
Need EE/Flash ROM recommendation
From:
David McNab ####@####.####
Date:
4 Nov 2004 08:55:22 +0000
Message-Id: <4189EE70.9090503@rebirthing.co.nz>
Hi all,
Hoping to draw some interesting ideas from you experts out there.
The situation is that my project is calling for playing audio samples.
The need is for a fair amount of reasonable quality audio (say, 32k
frames/sec @ 8 bits/frame stereo), which calls for a high-capacity ROM -
say, 4-16Mbit or more.
My idea is to create a bunch of audio samples, including voice, sound
fx, bits of music etc, and burn them into a ROM
Then, to run pins from the PIC into chained serial/parallel shift
registers, through to the ROM's address bus. Then, from the ROM's data
bus to a DAC, and out to an audio amp.
Question - can anyone recommend a good chip to use with the PIC?
Am I taking a hard road here - is there an easier solution (such as
'sample playing' chips with inbuilt DACs and an easy h/w interface?
All ideas appreciated.
--
Cheers
David
