PTAP: PT2399 tap tempo control

[jkokura]

 have a feeling Decc is just without interweb briefly. I could totally be wrong, cause it's just a guess though...

Jacob

[ppatchmods]

got an email from decc a week or 2 ago, and he has disabled the online store and will no longer be offering the ptap    he had some issues arise as far as priority shifting and was very apologetic. just passing the info along.

[bside2234]

Thank you for letting us know. Looks like I'll have to figure it out myself or give the Taptation a try when they are available.

[bside2234]

Ok. I'm thinking about trying out the Taptation but in my search for alternatives, I found this that uses a PIC:
http://www.electricdruid.net/images/lfo/TapClock.gif

Source:
http://www.electricdruid.net/index.php?page=projects.taplfo

Does anyone see any problems with going this route? Are there going to be any issues applying this to the PT2399 as used in the Magnus Modulus?

I want to dip my toes into the water of programming and since they make the code available for this, it seemed like a good place to start. Kind of learning backwards but sometimes that works better for me.

[jkokura]

That Tap Tempo circuit was used on the Tap Tempo Tremolo Taylor has generously got going around here. I seem to remember that it could be applied to a PT2399 circuit, but that we thought it was better applied to something with an LFO like a Trem or something like that.

Jacob

[bside2234]

Thanks Jacob. So someone already tried to apply it to a PT2399 circuit? I'll look into that more. I just want to kind of verify that it could work before I spend the $ on a programmer and stuff plus I don't want to waste time if it isn't going to work at all.

[slacker]

You can use the TAPLFO with a PT2399 as an LFO to do modulation, but you can't use it as a tap tempo to set the delay time.
You could probably use the code as a starting point to do something similar to the PTAP.

[bside2234]

Thanks Slacker. That sucks. Now I'm back to square one. So I pretty much HAVE to do some sort of digital pot and MCU?

[Lurco]

Ok. I'm thinking about trying out the Taptation but in my search for alternatives, I found this that uses a PIC:
http://www.electricdruid.net/images/lfo/TapClock.gif

Source:
http://www.electricdruid.net/index.php?page=projects.taplfo

Does anyone see any problems with going this route? Are there going to be any issues applying this to the PT2399 as used in the Magnus Modulus?

I want to dip my toes into the water of programming and since they make the code available for this, it seemed like a good place to start. Kind of learning backwards but sometimes that works better for me.

http://www.diystompboxes.com/smfforum/index.php?topic=76436.0

[bside2234]

http://www.diystompboxes.com/smfforum/index.php?topic=76436.0

How does this help me? I've read through that twice now.

[jkokura]

It answers your question I think though. You pretty much answered it yourself I think. Perhaps he was trying to suggest that if you hadn't read that, it would tell you that it only controls the LFO and not the PT2399 delay signal.

I think you do need to go with a programmed PIC. Fortunately for you, the taptation is available at the store, so you won't have to learn how to program. It's too bad that Decc isn't supplying the PTAP anymore.

Jacob

[bside2234]

Oh, I see. I thought I might be missing something.

I think I may go with the Tapation for now but I don't want to be in the same boat in the future and not have the Taptation available.

I'm looking into programming my own stuff. It's going to be a long road though. The good thing is, I have all the time in the world really. Right now I'm just trying to figure out the best and right language, controller, programs, and programmer to use. It's like learning a foreign language, only harder because of all hardware and software.

[Beo]

Yeah, I've ordered the taptation and will give it a try. I'm a little disappointed, as I finally figured out my design for a stereo echobase setup, and I wanted to use a single tap control to drive different divisions in each channel. To do that now, I'd have to have two separate taptation MCPs, which is pricey at 20 bucks a pop. Instead I'll try a buffered splitter to drive two digipots with a single taptation controller, keeping both channels at the same division.

I don't want to experiment too much for fear of burning up the chip. If there was open source code for tap delay, I'd probably invest the money in a PIC interface instead. I took a look at the taplfo code, and it seems non-trivial to modify this to work with a digipot SPI interface.

[jkokura]

See I'm trying the Taptation to drive a Dual PT2399 circuit to give me longer delay times. It's going to be a challenge, but my hope is to breadboard and create my own circuit design!

Jacob

[sentimentalbob]

Hi. Where I can buy U1 and U3 for ptap2?

[bside2234]

He's no longer programming them anymore so you can't but the pre-programmed chip.

I've been wanting some of these too. I'm trying to learn to program my own chips. I'm starting at level 0 so it's going to be a long road.

[RicoRokkaRolla]

Would somebody be kind as to tell me how can I purchase this kit? Thank you!

[Taylor]

Welcome to the forum. 

If you check the post right above yours you'll find the answer - you can't. But check this out:

http://www.diystompboxes.com/smfforum/index.php?topic=86294.0

[RicoRokkaRolla]

oh, sorry.

[stumper1]

Anybody have the most recent schematic and build/setup instructions for the PTAP?  I bought the chips and a board some time ago and never got around to installing them in my PT80.  Just went looking and the web site is gone....

Thanks,
Deric