Search found 27 matches

by sandromatik
Mon Nov 23, 2015 9:13 am
Forum: FV-1 software questions
Topic: 16 steps pot
Replies: 9
Views: 8901

Hi,
it's perfect to have the shortest delay 1/16 instead of 0 for my application,
in this case works perfectly adding it to the masked pot value instead of doing it before masking.

thanks again!!
by sandromatik
Sun Nov 22, 2015 3:35 pm
Forum: FV-1 software questions
Topic: 16 steps pot
Replies: 9
Views: 8901

I think I got it now, 1/16 wasn't the right value to sum to the masked pot, it must be 1/16 of the max pot value isn't it? It sounds pretty well synched now... mem delay 32767 rdax adcl,1 wra delay,0 rdax pot1,1 and %01111000_00000000_00000000 sof 1, 0.062375 ; 0.998 pot max value /16 wrax addr_ptr,...
by sandromatik
Sun Nov 22, 2015 1:32 pm
Forum: FV-1 software questions
Topic: 16 steps pot
Replies: 9
Views: 8901

Fantastic!! thank you very much Frank this is the best support forum customers could imagine I've added SOF 1, 1/16 after pot masking and it works like a clock, full delay time, 1second.. and perfect subdivisions! great!! EDIT I'm wrong again, the SOF 1, 1/16 operation does not make what I want, whi...
by sandromatik
Sun Nov 22, 2015 4:34 am
Forum: FV-1 software questions
Topic: 16 steps pot
Replies: 9
Views: 8901

I am using 2 boards for this test: -the Official evaluation board -a board I have designed, clocked with the same crystal used in yours. The issues I'm reporting here are exactly the same in both board. Another important detail I forgot to mention is that the maximum delay time within the code I pos...
by sandromatik
Sat Nov 21, 2015 4:29 am
Forum: FV-1 software questions
Topic: 16 steps pot
Replies: 9
Views: 8901

Thanks for your fast reply, here is the code: mem delay 32767 rdax adcl,1 wra delay,0 rdax pot1,1 and %01111000_00000000_00000000 wrax addr_ptr,0 rmpa 1 wrax dacl,0 the delay time with this code is not exactly divided in 16 equal parts.. with faster delay settings I must compensate with my sequencer...
by sandromatik
Fri Nov 20, 2015 5:19 am
Forum: FV-1 software questions
Topic: 16 steps pot
Replies: 9
Views: 8901

16 steps pot

Hi Frank, I need your help please: here is a part of a very simple, basic delay program, just to understand how this goes. delay time control pot is quantized in 16 parts as explained in knowledge base. Hardware is the evaluation board, not my design. rdax pot1, 1 and %01111000_00000000_00000000 wra...
by sandromatik
Mon Nov 02, 2015 5:44 am
Forum: FV-1 hardware questions
Topic: Program Port
Replies: 5
Views: 7320

I'll do with DIP eeprom then ;-)
Thanks!!
by sandromatik
Mon Nov 02, 2015 5:27 am
Forum: FV-1 hardware questions
Topic: What is the best way to use mono input to both ADC's
Replies: 18
Views: 23697

I think the best way is to work with balanced lines, with a mono program you can use the FV1 stereo in and outs as balanced mono. Of course your program must be adapted to receive and send balanced signals. Since I tried this will never go back to unbalanced, both common mode noise rejection and con...
by sandromatik
Mon Oct 05, 2015 3:16 pm
Forum: FV-1 hardware questions
Topic: balanced output
Replies: 0
Views: 28111

balanced output

is it any good for signal to noise ratio to use the stereo output as a balanced mono out?
Inverting one of the channels within the software?
by sandromatik
Mon Oct 05, 2015 3:03 pm
Forum: FV-1 hardware questions
Topic: Program Port
Replies: 5
Views: 7320

ice-nine, I was thinking about the same solution.. but was a bit scared of frying the precious dev board. Have you actually tried it? ..as simple as connecting with wires the production pcb eeprom to the dev board socket, power up just the dev board and assemble? It would be fantastic!!! thanks
by sandromatik
Sun Sep 27, 2015 1:40 pm
Forum: FV-1 hardware questions
Topic: Program Port
Replies: 5
Views: 7320

Program Port

Hi,
is it possible to use the evaluation board to program an eeprom already soldered on a product PCB?
Using a program port like the one shown in the guitar amp demo layout?
Thanks!
by sandromatik
Thu Feb 13, 2014 5:17 am
Forum: FV-1 hardware questions
Topic: external VCO clock
Replies: 6
Views: 9207

OK Frank!

Can you predict which issues will cause a poor clock symmetry within the audio performance of the chip?

thanks again
by sandromatik
Wed Feb 12, 2014 11:34 am
Forum: FV-1 hardware questions
Topic: external VCO clock
Replies: 6
Views: 9207

external VCO clock

I would try to clock the FV1 with a simple op amp VCO instead of the knowledge base circuits, as I would like to modulate its frequency via CV. I have a couple of questions: -How precise should be the 50% duty cycle of a square wave generator used to clock the FV1? -Which must be the peak to peak le...
by sandromatik
Thu Feb 06, 2014 3:21 am
Forum: FV-1 software questions
Topic: delay program with infinite repeats, no 100percent feedback
Replies: 5
Views: 8154

I see, OK thanks Frank
by sandromatik
Wed Feb 05, 2014 3:46 pm
Forum: FV-1 software questions
Topic: delay program with infinite repeats, no 100percent feedback
Replies: 5
Views: 8154

Thanks Frank.

Please, which would be the basic structure for a program capable of changing time when in hold?
I mean, in a few words, just to have something to start from.