gnupic: Need EE/Flash ROM recommendation
Subject:
Re: Need EE/Flash ROM recommendation
From:
Julian Green ####@####.####
Date:
4 Nov 2004 09:34:52 +0000
Message-Id: <20041104093454.M34981-100000@pschulz.lon.yahoo.com>
How about the ISD2560P chip? Havn't used it myself but sounds like what
you are looking for.
Julian
On Thu, 4 Nov 2004, Hotmail wrote:
> Dont know if this is applicable. Ideas in the past I have seen include using
> a CDROM drive. Inteface the rom drive and have a pre-burnt CD with all your
> sounds on it. Think it was in an Elektor Electronics mag.
>
> Trev
> ----- Original Message -----
> From: David McNab ####@####.####
> To: ####@####.####
> Sent: Thursday, November 04, 2004 8:55 AM
> Subject: Need EE/Flash ROM recommendation
>
>
> > 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
> >
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