Spin Semiconductor

Hi Tom, Although still in touch with us, Piet has retired from echos development but 3 of us were actively involved with Piet in his Etap2hw project using the SKRM daughter board you ask about. Latterly this has developed into a fully micro-computer controlled unit now called Blue Nebula with lots o...

Hi Frank,
I narrowed down the click/pop problem when changing programs to the fact we were using both ADCR & ADCL and summing/averaging them. If I only use ADCL then the problem is solved. Does this point to a slight difference between the ADCs in some way to produce an offset?
Thanks again. Steve

FV-1 is a typical CMOS process so anything above 0.7*VDD is a "1" and below 0.3*VDD is a "0" Have you looked at all the signals for a glitch? Personally I would ignore everything else until I tracked down with a scope where the pop is originating. Is it on the power line? A glit...

In a vintage multi-head delay emulator we have an Arduino Nano controlling the switch over of 2 eeproms to give a total of 16 programs. I have noticed a pop or click on the output, which only occurs when the 2nd eeprom is switched into circuit. This is effected using a change in level sent from D5 o...

It could be, I did not write that code so I do not know if it is a typo or if he changed his mind while writing it. Try changing it and see what happens. Thanks Frank. I changed the code but found that the -1 needed changing to -0.95 and then it worked well with a calculated gain factor reducing fr...

Hi Frank, I'm slowly learning to program the FV-1 and came across this snippet of code from the 3k_V1_1_Room.spn program written by Keith Barr I believe. ;prepare decay pot: rdax pot1,0.97 ;get pot, limit to less than infinite wrax krt,1 ;write loop decay time sof 0.4,0.6 ;scale to 0.6 to 1.0 wrax k...