Winbond ISD1700 Voice Recorder


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  1. #1
    Join Date
    Nov 2003
    Location
    Greece
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    4,132


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    Oh boy! Its worst than I thought!

    What stupid memory administration these chips have!

    I hoped that there was an auto mark method for the start and stop. Well for the stop there is the EOM but what about the 3rd message for example? How can the PIC know where it resides?

    Stupid.

    Ioannis

  2. #2
    Join Date
    Sep 2005
    Location
    Dayton, Ohio
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    If you don't want to use direct addressing, then you can still operate in "pushbutton mode" with fast-forward to each message (same as ISD2560). This can be done with actual 'buttons', microcontroller I/O, or through SPI interface commands simulating tape recorder style operation.

    For my application, it is better to use the SPI and 'memory map' scheme. I need the fast response and instant triggering of sounds. But the ISD1700 is VERY flexible so you can still do it the 'old school' way.

    I do not have any code for controlling via pushbutton mode, so you would have to read up the datasheets on that. There is some documentation on migrating from ISD2560 to ISD1700 from Winbond (Nuvoton) that should help.

    Also they have a tech support email and phone. I used the phone tech support to solve some issues I ran into last year.

    There is always a learning curve with a device that has so much flexibility...

    Also you may want to check out the Cowlacious website, they have an ISD1700 recorder/player that may be more similar to what you are looking for.
    Jim Robertson
    "MilesTag" DIY Lasertag
    www.lasertagparts.com/mtdesign.htm
    Dayton, Ohio

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