using ISD2560 on PIC18F4620

[rookie]

HI , did anyone know how to record sound using ISD2560 in PIC18F4620 ?

[peterdeco1]

Hi Rookie. You really don't need a PIC to run that chip. You can use a diode matrix for addressing purposes. Also, DON"T become attached to it. Winbond released an End Of Life to that series and is discontinuing it. We are using the ISD2575 (same thing with 75 seconds) and I'm in the process of redesigning our boards to use (probably) the newer ISD1750. It offers the ability to operate stand-alone or SPI with a microcontroller.

[dleroi]

We are using the ISD2575 (same thing with 75 seconds) and I'm in the process of redesigning our boards to use (probably) the newer ISD1750. It offers the ability to operate stand-alone or SPI with a microcontroller.

I realize that this is an old thread, but I'm curious if you did go with the ISD1750? If so, I'd be interested in hearing how it went.

I'm also updating an old project that used a now obsolete Winbond chip. I thought I could simply pulse the FWD input to get to the desired recording, but the ISD chip responds too slowly that way. I'm going to pursue the SPI interface, next. If there's any interest, I'll post my results.

I'm new to this forum, so I'm not sure if I should post here or start a new thread dedicated to interfacing with the ISD chips. Anyone have a suggestion?

- Don

[peterdeco1]

Hi Don. Never persued the ISD1750. Requires a whole new protocol from what I'm used to. I've been using the ISD5008 for a while now and with the quantities we order, the price is almost equal to what we were paying for the 2575. So this is the chip we will use to replace it.

[dleroi]

Hi Peter,

Thanks for the quick reply. It appears no one is "upgrading" to the ISD1700 series for their PIC projects. My concern was with the SPI code, but since it looks like SPI is soon going to be the only way to talk to these things, I'm going to give the ISD17120 a shot.

- Don

[peterdeco1]

Let me know Don. Perhaps we can share some code.