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  Topic: Phase difference between wet&dry signals
Digital Larry

Replies: 1
Views: 33

PostForum: FV-1 software questions   Posted: Tue Nov 14, 2017 6:45 am   Subject: Phase difference between wet&dry signals
If your effects are mostly of the ambience type (delays and reverbs) then I think the additional latency will not be a big deal.

A chorus also might not be too greatly affected by the latency as ...
  Topic: New Phaser code
Digital Larry

Replies: 5
Views: 233

PostForum: Algorithm development   Posted: Sat Oct 21, 2017 8:04 am   Subject: New Phaser code
You can delete these references as well:

equ lp1 reg1
equ lp2 reg2

wrax lp1,0
wrax lp2,0

lp1 and lp2 are never used beyond being cleared to zero at init time.

Call me cra ...
  Topic: Board bringup issues
Digital Larry

Replies: 14
Views: 503

PostForum: FV-1 hardware questions   Posted: Mon Oct 09, 2017 1:18 pm   Subject: Board bringup issues
Thanks, Ice-9, I'm looking for an approach that will work whether the input is 5V or 3.3V. Would the level shifters do that?
  Topic: Board bringup issues
Digital Larry

Replies: 14
Views: 503

PostForum: FV-1 hardware questions   Posted: Mon Oct 09, 2017 6:46 am   Subject: Board bringup issues
I appreciate the insight, Admiral_dk. These are BZX84s. I do need to protect against 5 volts, even though on the pedal I got from Mr. Ice-9, my 5 volt only PICKit-2 clone does not blow up the FV-1, ...
  Topic: Board bringup issues
Digital Larry

Replies: 14
Views: 503

PostForum: FV-1 hardware questions   Posted: Sat Oct 07, 2017 3:37 pm   Subject: Board bringup issues
So is 10 uA reverse leakage through the zeners enough to pull those down by 1.3 volts and prevent reading of the EEPROM from working? It's probably fine to leave the zeners off, I'm just trying to un ...
  Topic: Board bringup issues
Digital Larry

Replies: 14
Views: 503

PostForum: FV-1 hardware questions   Posted: Sat Oct 07, 2017 12:47 pm   Subject: Board bringup issues
I pulled the zeners off and... it's ALIVVVEEEEEE moo0000oooowahahahahahahah!!!

Very Happy

The specs say they could have 10 uA reverse current. As this i2c bus is lacking pullups, there's no specific ...
  Topic: Board bringup issues
Digital Larry

Replies: 14
Views: 503

PostForum: FV-1 hardware questions   Posted: Sat Oct 07, 2017 6:17 am   Subject: Board bringup issues
Thanks guys. I have not gone fully though this, however:

a) Internal programs pass signal. I'm just looking at a scope trace using a sine wave input.

b) Same EEPROM does not make clipping ligh ...
  Topic: Board bringup issues
Digital Larry

Replies: 14
Views: 503

PostForum: FV-1 hardware questions   Posted: Thu Oct 05, 2017 10:17 pm   Subject: Board bringup issues
Finally designed a PCB. Getting 32 kHz on both crystal pins and activity on SDA and SCL when I flip the program select pins around. I believe that I programmed the chip successfully with my PICKit2. ...
  Topic: NAMM 2017
Digital Larry

Replies: 36
Views: 5769

PostForum: FV-1 hardware questions   Posted: Wed Sep 06, 2017 6:11 pm   Subject: NAMM 2017
For my style of playing, the ideal delay length would be one that allows me to complete my performance and leave the venue before anyone hears it!
  Topic: echo
Digital Larry

Replies: 14
Views: 1110

PostForum: FV-1 software questions   Posted: Sun Aug 27, 2017 5:31 am   Subject: echo
I'm not making fun of you. I'm suggesting that you can test your ideas easily by trying them and this is a great way to learn. Just make sure you aren't wearing headphones when you do it, because yo ...
  Topic: echo
Digital Larry

Replies: 14
Views: 1110

PostForum: FV-1 software questions   Posted: Sat Aug 26, 2017 2:16 pm   Subject: echo
Give it a shot and see what happens.
  Topic: echo
Digital Larry

Replies: 14
Views: 1110

PostForum: FV-1 software questions   Posted: Sat Aug 26, 2017 5:05 am   Subject: echo
Just put a semi colon at the beginning of this ONE line.

; RDFX REG0,0.0009173407 ,- put semi colon at beginning of line

I showed 3 lines to make it easier to find.

I usually charge money to ...
  Topic: echo
Digital Larry

Replies: 14
Views: 1110

PostForum: FV-1 software questions   Posted: Fri Aug 25, 2017 4:47 pm   Subject: echo
Remove the pitch bend by taking out this one instruction:

;------ Smoother
RDAX POT0,1.0000000000
; RDFX REG0,0.0009173407 ,- put semi colon at beginning of line
WRAX REG0,0.0000000000

You ...
  Topic: echo
Digital Larry

Replies: 14
Views: 1110

PostForum: FV-1 software questions   Posted: Sun Aug 20, 2017 9:38 am   Subject: echo
Here you go.

; Pot 0: Delay time 50 msec - 950 msec
; Pot 1: Feedback level
; Pot 2: Delay level
; Left in, left out
;
; ----------------------------
;------ Input
;------ Pot 0
;------ Sm ...
  Topic: Knob variable power function?
Digital Larry

Replies: 2
Views: 581

PostForum: Algorithm development   Posted: Wed Aug 09, 2017 2:51 am   Subject: Knob variable power function?
Interesting strategy! Those sine waves might have to be scaled down prior to running through the crossfade to avoid clipping but I may just give this a try.

(though since they are always in phase, ...
 
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