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Quadravox chip upgrade? — Parallax Forums

Quadravox chip upgrade?

ArchiverArchiver Posts: 46,084
edited 2004-03-28 22:42 in General Discussion
Greetings all.

Forgive me for asking this without completely researching it, but
this is a spur of the moment question.

I've got a QV306M4P which I haven't done much with, however I just
had an idea about something to send to some of my friends in
Iraq/Kuwait. Basically, I hope to record a number of jokes and
stories from our unit comedian and send it over, using a stamp to
randomly select and play a file. So far so good (Thanks for the
clear demo Jon).

What I'd like to do though is increase the recording time from four
minutes to one of the longer chips (possibly a 4003-08). However,
from briefly looking at the datasheet I see some of the timing and
sampling rates are different. Since I don't have the Quadravox in
front of me, I'm not sure if these are implemented in software or
hardware (specifically XCLK and the sampling rate).

Has anyone tried this? I'd sure be interested in your experience.

Thanks,
Brian

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2004-03-28 21:16
    You cannot arbitrarily change the ISD chip; the PIC interface on the
    QV306 expects a particular device to be in place.

    -- Jon Williams
    -- Applications Engineer, Parallax
    -- Dallas Office


    Original Message
    From: Brian [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=mg31RbzQ7Dmf4iKthMBVQS3HzP2_FAlBXL63QNotufOSkE1lAf3ddv-59a2BWkQrVC0_jQ]n7qjb@m...[/url
    Sent: Sunday, March 28, 2004 1:01 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Quadravox chip upgrade?


    Greetings all.

    Forgive me for asking this without completely researching it, but
    this is a spur of the moment question.

    I've got a QV306M4P which I haven't done much with, however I just
    had an idea about something to send to some of my friends in
    Iraq/Kuwait. Basically, I hope to record a number of jokes and
    stories from our unit comedian and send it over, using a stamp to
    randomly select and play a file. So far so good (Thanks for the
    clear demo Jon).

    What I'd like to do though is increase the recording time from four
    minutes to one of the longer chips (possibly a 4003-08). However,
    from briefly looking at the datasheet I see some of the timing and
    sampling rates are different. Since I don't have the Quadravox in
    front of me, I'm not sure if these are implemented in software or
    hardware (specifically XCLK and the sampling rate).

    Has anyone tried this? I'd sure be interested in your experience.

    Thanks,
    Brian





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  • ArchiverArchiver Posts: 46,084
    edited 2004-03-28 22:42
    Thanks Jon. I figured that at worst I'd put in a ZIF socket and give
    them a subscription to the chip of the month club.

    Thanks again,
    Brian

    --- In basicstamps@yahoogroups.com, "Jon Williams" <jwilliams@p...>
    wrote:
    > You cannot arbitrarily change the ISD chip; the PIC interface on the
    > QV306 expects a particular device to be in place.
    >
    > -- Jon Williams
    > -- Applications Engineer, Parallax
    > -- Dallas Office
    >
    >
    >
    Original Message
    > From: Brian [noparse][[/noparse]mailto:n7qjb@m...]
    > Sent: Sunday, March 28, 2004 1:01 PM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Quadravox chip upgrade?
    >
    >
    > Greetings all.
    >
    > Forgive me for asking this without completely researching it, but
    > this is a spur of the moment question.
    >
    > I've got a QV306M4P which I haven't done much with, however I just
    > had an idea about something to send to some of my friends in
    > Iraq/Kuwait. Basically, I hope to record a number of jokes and
    > stories from our unit comedian and send it over, using a stamp to
    > randomly select and play a file. So far so good (Thanks for the
    > clear demo Jon).
    >
    > What I'd like to do though is increase the recording time from four
    > minutes to one of the longer chips (possibly a 4003-08). However,
    > from briefly looking at the datasheet I see some of the timing and
    > sampling rates are different. Since I don't have the Quadravox in
    > front of me, I'm not sure if these are implemented in software or
    > hardware (specifically XCLK and the sampling rate).
    >
    > Has anyone tried this? I'd sure be interested in your experience.
    >
    > Thanks,
    > Brian
    >
    >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the
    Subject
    > and Body of the message will be ignored.
    >
    > Yahoo! Groups Links
    >
    >
    >
    >
    >
    >
    >
    > This message has been scanned by WebShield. Please report SPAM to
    > abuse@p...
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