Spin Semiconductor

I retread that section again but it didn't clarify my main question which is :
What is the actual limit for values in the accumulator? Is it actually floating point so the value can be anything that fits into 24 bit float?

You are correct, I was using a ramp from my micro controller dac and realized the derp that of course my upward movement is going to not show as much since the ramp is going up :/

Sometimes I wonder how I am even able to do this stuff at all haha

Thank you
I realized after posting that there was no way to use a register to modify the coefficient. It looks like it doesn't take many more instructions to do a filter with pot controlled cutoff though, so that's good

I'm not sure if I fully understand what you are asking, or if this is relevant: the pot inputs have some heavy hysteresis that will slew anything coming in. WRAX DACL what you have coming into the pot and clip a probe to it and scope it, it's been very enlightening and helpful to do this. Also the a...

From the user manual "Since  ACC  (in  it’s  role  as  the  destination  for  the  EXP  instruction)  is  limited  to  linear  values  from  0  to +0.99999988,  the  EXP  instruction  is  limited  to  logarithmic  ACC  values  (in  it’s  role  as  the  so...

It seems like this works well on the upward movement, but the downward movement is still showing the hysteresis. I was trying out having a micro controller and dac to use for controlling the pot inputs, so any improvement is good, Ill try playing with your numbers some more and see if I can get it a...

I ended up finding the user manual PDF with more detail on the opcodes. What I am understanding now is the log uses s4.19 fixed point output. How does this translate into values the other opcodes can use in subsequent operations?

Ive been reading all the documentation in depth and I don't fully understand the PACC, it says on several of the instructions they copy the ACC to the PACC first, but on the block diagram in the user manual it says that PACC is the previous sample. Is this one or the other or both? like if those opc...

Thank you :) I am curious how to go about this, if anyone has tried or knows of some info on how I would send the data from the micro controller or how the eeprom of the fv1 gets its address read. I would assume I need to use a few digital pins of the micro i2c and find a way to have it emulate an E...

Decent reverb! I like it more with the excursion up to 256+

what is the actual limit for the accumulator? I can't seem to find this info in the documentation but there is tons of info on the resolution of the opcodes coefficients and registers. right now I made a simulator in audulus 3 modular programming environment and am doing all the bit resolution downs...

No specific FV-2 plans but we are always looking at comments, market, etc. I dream about mb level memory,7 outputs ,14pot interfaces both analog and digital and latch or memory for this,internal selectable clock freq.,become possible to use as a digital mixer channel ,code protection ,internal and ...

could you maybe use 2 registers to double the precision and do the calculation twice/add .5 of each?

Well I am glad you got it figured out even if my post was not the most helpful thing in the world. Lots of times I am dealing with code that I copied from somewhere else and so there you go. As you may have guessed, one of the reasons I developed SpinCAD is that Spin ASM gives me a headache even to...

You can't make an adjustable filter with RDFX. It is for fixed filters. So you calculate the coefficient ahead of time. are you sure about that? it doesn't state this in the manual anywhere. Im going to try this now and see. not hard to swap it out for a register based IIR filter if it doesn't work.