ISD1700 series Winbond chipcorder

[RFEFX]

For your application i have found this to do what you are trying to do. I am still trying to get the SPI working on this board though.

http://www.cowlacious.com/AudioProd.htm

Regards,
Gary D.

[ams0178]

Hello Rickey,

I am wondering if you could send me the documentation for the ISD1700 that the mfg sent you, [email protected]. I'm hoping to use SPI to communicate w/ the chip, but the datasheet via digikey seems more like a 2 page summary. I can't find anything that shows the SPI commands. How's your project coming. Fully integrate the chip?

Thanks, Alan

[rickeybell]

I will have to look.

[wb6sjd]

Alan - I sent you everything I have on the ISD1700 series.

- Mike

[txniteowl]

If I can be of any help, let me know.
Working on a message system playback only for Repeater Controller.

Using a 16F877-04I/P MCU with a ISD17240PY Voice Chip via SPI interface in
Master Mode. May have to change my mind as of tonight reviewing a DESIGN GUIDE for the ISD1700 Series saying I should use the SLAVE MODE.

Any Comments or Suggestions for those who have worked with the 1700 Series Voice chips?

This is quite a bit of setups to perform prior to initiate READ, WRITE, PLAY, RECORD, STOP, etc commands. The document I am talking about is easily found by Google Searching "ISD1700 Design Guide".

Like to work with another Amateur Radio Operator on this project.

Dennis, N5VRP
Texas

[JoelPIC]

Hey guys,

I'm new here, but you seem like you have some experience working with the ISD17000 chipcorder series.

I've been having luck communicating with the chipcorder over the SPI interface; however, I'm having one BIG issue.

My PIC controls two chipcorders and while one is recording, the other one is playing back. It works fine, usually for about 5 minutes, at which point the play command continues to work, but it's no longer records. I can tell visually because I have the LED option enabled.

The only way to get it to work again is to do a hardware reset, then a hardware global erase. If I try these same commands via SPI, it doesn't work.

I guess my questions are this:

1) Has anyone see this behavior, where the "record command" (0x41) seems to just not work after a few minutes?

2) I notice that once the record stops working, the CMD_ERR bit does get set. But does this really even do any good? It tells you there's a problem but there's no way to get the thing reset and working again... except for that hardware reset / global erase thing I mentioned earlier.

Any help is greatly appreciated.

Thx,

Joel

[ams0178]

Hi Joel,

It looks like you're farther along than I am. After a 9 month period of inactivity I'm finally starting to program my PIC and trying to get the ISD1700 up and running. (FYI, it's hard to do hobbies when you're writing a Master's Thesis and moving cross country to start a new job, haha.)

But my initial efforts to get the SPI communications working have been unsuccessful. What PIC are you using? I'm using the PIC16F887. Would you mind posting your code settings?

Any luck with the bugs you were having? Maybe if I can get up to speed, we can tackle this as a team.

Thanks, Alan