Spin Semiconductor

Think of the signals inside the FV1 as numbers, from -1 to 1. If you think about an analog audio signal, that looks like this: http://t1.gstatic.com/images?q=tbn:ANd9GcS4fAjdA6WHPaFVvUBubmDgfeAGv5S8NmccBuXDqTOfrugL_FbYkg The line down the middle is "0" inside the FV1. The very top of the g...

So what would happen at the point at which the chip can't handle the clock rate? Are we talking death of the FV1, no sound, weird artifacts...? I'm not going to try to push it, just curious what the consequence would be.

Well, I tried it and it works very well, using the inverter oscillator shown in the knowledge base. I do need to figure out how to adjust the values to get a range from 16k-50k instead of 20k-60k. I normally simulate analog stuff in Falstad's realtime simulator , but this doesn't have the ability to...

That code writes to the left output, maybe you're trying to get sound out of the right output?

Ok, here's why that fails. "sin" and "cos" are reserved words, so you're not allowed to equate them to a register. See the list of reserved words here: http://www.spinsemi.com/knowledge_base/pgm_quick.html#Reserved_Words Change sin and cos to "s" and "c" or &q...

You already removed "start by initializing a sin LFO" but it still tells you that? That doesn't make sense. Can you post the exact full code you are assembling?

Trying to get a ramp that rises for half a cycle and stays at maximum for the second half, something like this: __ __ __ __ / | / | / | / | / |/ |/ |/ | also, how do you offset a ramp by half a cycle? thnx I think it would be as simple as deriving your ramp wave, then amplifying it until it hard cl...

I had an idea about modulating the clock frequency of the chip as a workaround for the 3-pot limit. Say we have a delay program happening, and we send a varying clock to the clock pin. Would this act to modulate the delay time, giving vibrato/chorus type effects? I see in the knowledge base that thi...

Wow, very sorry to hear this, what a loss.

What happens if the FV-1 powers up in external memory mode, but there's no EEPROM connected? I'm just curious, I have no application for this, so no other info to give or anything. I was just pondering it. Obviously, it can't load an external program in this case, so does it default to the respectiv...

Sometimes in the process of developing a program, it's easier to leave in a bunch of useless code and just disable it, than to remove it and completely restructure the program. Is there any reason that this would be bad (aside from readability) - for example, does a longer program create more latenc...

What kind of response are you looking for? Extreme filter response or the subtle response of a Fender amp? How do you plan to control the parametric band when you've used 3 pots for bass mid and treble?

I don't know if this is what you're looking for, but it is a frequency shifter:

http://www.spinsemi.com/knowledge_base/pitch_sft.html

Aion was saying that he/she wants to have all the parameters set permanently to some values in the code, and then to use the pot inputs as on/off switches for each effect. So this would leave you with no pot controls to do a mix pot. You'd have to do it externally, by sending one effect to DACR and ...

What does it sound like? What does it do right, what does it do wrong?