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| Page 1 of 2 [29 Posts] | Goto page: 1, 2 Next |
| Author | Message |
|---|---|
 Topic: Talko LPC synth |
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| yogi Replies: 34 Views: 36881 |
Posted: Mon Nov 09, 2015 9:35 am Subject:
Talko LPC synth
Forum: DIY Hardware and Software » Arduino |
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Don't you also want pots to fiddle with the code ? I got into modular because I was developing simple functions to get them talking together before I discover there was a complete universe doing th ... |
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| Topic: Talko LPC synth |
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| yogi Replies: 34 Views: 36881 |
Posted: Sun Nov 08, 2015 3:54 pm Subject:
Talko LPC synth
Forum: DIY Hardware and Software » Arduino |
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Hi Yogi thx for your nice comments Not sure I understand your question : why not use the CV out from MB to CV in on Talko ? PS I just made this patch by messing arround: using the CV out from the ... |
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| Topic: Talko LPC synth |
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| yogi Replies: 34 Views: 36881 |
Posted: Sat Nov 07, 2015 1:13 pm Subject:
Talko LPC synth
Forum: DIY Hardware and Software » Arduino |
| Wow, only just found this. Very cool, really like the "Pitch Fun" track. This project is what I've been wanting for a while.
Been gathering speech chips for a long time: SPO, TI Voice Mo ... |
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| Topic: GM Voice for the 21st Century |
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| yogi Replies: 10 Views: 13743 |
Posted: Tue Aug 05, 2014 12:31 am Subject:
GM Voice for the 21st Century
Forum: DIY Hardware and Software |
This is very cool, have wanted to build a DB synth for a long time but finding a card has put me off, and it looks like the China source has dried up now. Thanks for finding a good alternative 
... |
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| Topic: Prototyping Board vs Experimenters Board |
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| yogi Replies: 13 Views: 9013 |
Posted: Thu Sep 26, 2013 6:00 pm Subject:
Prototyping Board vs Experimenters Board
Forum: DIY Hardware and Software » Developers' Corner |
PHOBos' first photo is just beautiful, wish my boards looked so good. But most times I'm happy if they JUST work 
Most the time, mine look like a cross between the last two postings, but mostly it ... |
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| Topic: AY-3-8910/12/13 "module" |
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| yogi Replies: 35 Views: 25614 |
Posted: Tue Sep 17, 2013 10:48 am Subject:
AY-3-8910/12/13 "module"
Forum: DIY Hardware and Software » Developers' Corner |
 Didn't mean to sound like a rant, and I assume that most readers on this forum are way beyond the 'which end of the soldering iron do I hold?' stage.
Just trying to share, IMO, a really great pr ... |
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| Topic: AY-3-8910/12/13 "module" |
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| yogi Replies: 35 Views: 25614 |
Posted: Tue Sep 17, 2013 7:31 am Subject:
AY-3-8910/12/13 "module"
Forum: DIY Hardware and Software » Developers' Corner |
| A "little" ?
Yea, can be TMI. It would be nice if there was more, very basic how-tos, like you find for the Arduino. On the other hand, the MidiBox audience is assumed to have som ... |
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| Topic: AY-3-8910/12/13 "module" |
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| yogi Replies: 35 Views: 25614 |
Posted: Mon Sep 16, 2013 9:44 pm Subject:
AY-3-8910/12/13 "module"
Forum: DIY Hardware and Software » Developers' Corner |
| Hey Guys, just a heads up: There is a MidiBox project for AY Chips, http://www.midibox.org/dokuwiki/doku.php?id=midibox_ay_ym_v2
I totally understand the the fun of 'working out your own project' but ... |
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| Topic: How to add control voltage to a circuit? |
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| yogi Replies: 39 Views: 58431 |
Posted: Thu Jun 20, 2013 7:49 pm Subject:
How to add control voltage to a circuit?
Forum: DIY Hardware and Software » Developers' Corner |
| Hi rogerlatur
You may like to check out a couple pages that show usage of vtactols and JFETs to add a measure of CV control: http://www.musicfromouterspace.com/forums.html?CATPARTNO=WSG001&PROJARG ... |
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| Topic: Newbie to Xilinx FPGA programming asks....... |
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| yogi Replies: 2 Views: 5382 |
Posted: Thu Feb 07, 2013 3:26 pm Subject:
Newbie to Xilinx FPGA programming asks.......
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Hi, MuBase. Another Papilio owner! I too have a 500K but I haven't been to active with it yet. You may know of Gadget Factory's RetroCade, though it's targeted towards the new Papilo Pro, Jack has men ... | |
| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Sat Feb 02, 2013 10:54 am Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
Most excellent!' ' Hummmm, VERY long stereo delay... |
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| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Sat Feb 02, 2013 12:02 am Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Good to hear you resolved the problem with RP11. Will keep this in mind.
...Heck, I wish they had a version (or a selectable mode using pin 3) that would access 16 bits per transfer instead of 8 bi ... |
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| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Tue Jan 29, 2013 1:28 pm Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| After reading Wikipedia; really only the quad mode would be a help. Both are half duplex modes, so dual mode runs at about the same speed as generic SPI full duplex and Quad mode offers about double t ... | |
| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Mon Jan 28, 2013 7:51 pm Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
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Each SPI SRAM transaction needs 40 clocks, so at 10 megabits per second, this is 4 microseconds. In my case, since I use two in parallel, I get one 16 bit word transfer every 4 microseconds or 250, ... |
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| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Sun Jan 27, 2013 10:09 pm Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Very interesting idea. Could be very useful to hold L & R sample data and not have to worry about interleaving the data in one buffer.
On the board I've been building, I added another dip fo ... |
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| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Fri Jan 18, 2013 4:45 pm Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| That's great to hear! I remember reading about trying dif settings for the Clk edge and the idle state for a intermittent EEPROM problem, but seeing how your code seemed to work with the '256. Well I ... | |
| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Thu Jan 17, 2013 9:42 am Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Well the board's mostly done but waiting for the '1024s to show up. In the interim, I'll be adding some ifdefs for the PLL setup and remapping the SPI pins; I've built it based on the RoninSynth setup ... | |
| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Wed Jan 16, 2013 7:37 pm Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Just went through the 'loop' routine, seems simple enough. During the WRMR sequence, MISO stays HiZ. During the RDMR sequence, MISO should be HiZ for the first 8 clocks, then Hi/Lows for the last 8 c ... | |
| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Wed Jan 16, 2013 6:20 pm Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| I haven't dug too deep into your code, mainly because it worked with the '256 and you made adjustments to the adr length. So I'm thinking you could have s slight difference between the two chips. I fo ... | |
| Topic: 32 K byte SPI SRAM |
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| yogi Replies: 44 Views: 53041 |
Posted: Tue Jan 15, 2013 10:49 am Subject:
32 K byte SPI SRAM
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Thank you. Beatuiful timing; 2/3rds of the way with a dsPIC board build and have some 'LC1024s in the FedEx pipeline | |
| Topic: dsPICs, let's talk about them |
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| yogi Replies: 51 Views: 58559 |
Posted: Sat Jan 12, 2013 8:37 pm Subject:
dsPICs, let's talk about them
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Very insightful. The few threads I read, had differing reports on the noise floor for the DAC, some were experiencing high levels while others found no problems. I can see that noise can easily be int ... | |
| Topic: dsPICs, let's talk about them |
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| yogi Replies: 51 Views: 58559 |
Posted: Sat Jan 12, 2013 5:28 pm Subject:
dsPICs, let's talk about them
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| I will at least post the complete SRAM diagnostic. It will be designed to write random data to all 32768 bytes, then re-seed the random generator and read it all back to check that it is stored accur ... | |
| Topic: dsPICs, let's talk about them |
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| yogi Replies: 51 Views: 58559 |
Posted: Sat Jan 12, 2013 4:17 pm Subject:
dsPICs, let's talk about them
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| OH, Very Cool! So Very glad I could help!!
I know what you'r talking about; just to go through this issue I had the DataSheet, The DMA section and the SPI section of the FRM all open, and jumping ... |
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| Topic: dsPICs, let's talk about them |
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| yogi Replies: 51 Views: 58559 |
Posted: Sat Jan 12, 2013 1:52 pm Subject:
dsPICs, let's talk about them
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| Well the missing interrupt enable is now in the code and I've edited the post above to include it as well. Still doesn't work. I added that later so that I could toggle an LED in the ISR.
Yea, the ... |
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| Topic: dsPICs, let's talk about them |
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| yogi Replies: 51 Views: 58559 |
Posted: Fri Jan 11, 2013 9:07 pm Subject:
dsPICs, let's talk about them
Forum: DIY Hardware and Software » Microcontrollers and Programmable Logic |
| You know, I was reading FRM sec 38 most of today. So I have just enough knowledge to spell DMA
Going through your code, I'm not seeing DMA0IE being set. just a thought EDIT- For one byte, not sur ... |
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