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Type: Posts; User: Saibot

1. ## Thread: Problem using AudioInputI2Sslave and AudioOutputUSB together

by Saibot
Replies
12
Views
170

### Good that you have persevered and succeeded - I...

Good that you have persevered and succeeded - I have been watching your posts on the Raspberry Pi forum as well - although as you have now discovered the Teensy forum is a much better place to post a...
2. ## Thread: Wolfson WM8960 DAC

by Saibot
Replies
6
Views
328

### Final code and Teensy 4.0 also tested 21525 ...

Final code and Teensy 4.0 also tested

21525

////////////////////////////////////////////////////////////////////////////
// Based on Wolfson WM8960 STM32 demo code...
3. ## Thread: Wolfson WM8960 DAC

by Saibot
Replies
6
Views
328

### // 1111 1100 b0 =1 PLL on res +=...

// 1111 1100 b0 =1 PLL on
res += WM8960_Write_Reg(0x1A, 1<<8 | 1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<3 | 1);

All done
4. ## Thread: Wolfson WM8960 DAC

by Saibot
Replies
6
Views
328

### Yes I started with the Raspberry Pi hat versions:...

Yes I started with the Raspberry Pi hat versions:
https://www.waveshare.com/wm8960-audio-hat.htm

Oops this is link for first post general DAC
https://www.waveshare.com/wm8960-audio-board.htm
...
5. ## Thread: Wolfson WM8960 DAC

by Saibot
Replies
6
Views
328

### ok sorry formula is on page 60 PLLK = int (2^24...

ok sorry formula is on page 60 PLLK = int (2^24 (R-PLLN)) and examples in table 44

44,10kHz
f2 = 4 x 2 x 11.2896Hz = 90.3168MHz
R = 90.316 / 12 = 7.5264
PLLN = int R = 7
k = int ( 2^24 x...
6. ## Thread: Wolfson WM8960 DAC

by Saibot
Replies
6
Views
328

### Sorry here is a schematic and datasheet 21521 ...

Sorry here is a schematic and datasheet
21521

21522
7. ## Thread: Wolfson WM8960 DAC

by Saibot
Replies
6
Views
328

### Wolfson WM8960 DAC

I fiddled around with a Wolfson WM8960 DAC until I got it sort of working with a Teensy 3.6 and 4.1 as Audio USB to i2s output passthrough for playing music from a (windows) pc

The code that I...
8. ## Thread: VGA out for Teensy 4.0/4.1

by Saibot
Replies
111
Views
2,336

### 21445 You need to adapt it for i2s out i.e. just...

21445
You need to adapt it for i2s out i.e. just replace usb with i2s

This is for usbaudio from a pc

This is what I use with Teensy 4
// PCM5102-DAC Teensy 4
// VCC 5V
//...
9. ## Thread: USB input to I2S output does not work for Teensy4.1

by Saibot
Replies
4
Views
226

### You need AudioControlSGTL5000 sgtl5000_1;...

You need AudioControlSGTL5000 sgtl5000_1; object
I am assuming you are using the audioshield?
10. ## Thread: Teensy 4.1 VBAT pins

by Saibot
Replies
5
Views
212

### The holes next to the micro-SD card reader, are...

The holes next to the micro-SD card reader, are in the same order as the Teensy 4.0, but in a different location. Going from top to bottom on the above picture of the back side, the pins are:
• Pin...
11. ## Thread: EXTMEM memory test program for testing PSRAM in teensy 4.1

by Saibot
Replies
10
Views
349

### naah the RC part is the boss over thee...

naah the RC part is the boss over thee...
12. ## Thread: New to teensy audio, done some audio DIY

by Saibot
Replies
5
Views
329

### Ok I will answer half of my own question - no you...

Ok I will answer half of my own question - no you cannot use PSRAM on the audioboard because its requires Quad SPI.
I still do not know if the delay library, with modification, can use the PSRAM on...

by Saibot
Replies
19
Views
588

### Haha.. Essen is OK now. I live 50km away....

Haha.. Essen is OK now. I live 50km away.
Juliane was great...but..part of the past, like Grundig and the others.

p.s. Gianna Nannini (Italy) was better ;)

..or Sinatras daughter Nancy

Yes...

by Saibot
Replies
19
Views
588

### Yes but because you did not look after your great...

Yes but because you did not look after your great electronics companies - Grundig, Telefunken, Siemens. Dutch did not look after Philips. Brits lost Mullard...

Edit
But you you did make Julianne...

by Saibot
Replies
19
Views
588

### I read it as price versus quality...

I read it as price versus quality...
16. ## Thread: New to teensy audio, done some audio DIY

by Saibot
Replies
5
Views
329

### I also noted you installed the 23LC1024 ram on...

I also noted you installed the 23LC1024 ram on the audio board for longer delay times.
It is worth enquiring if it is possible to use PSRAM on a Teensy 4.1 for this, and is it is possible to install...
17. ## Thread: Lisp interpreter for the Teensy 4.0/4.1

by Saibot
Replies
1
Views
267

### I had a look and it is certainly different. I did...

I had a look and it is certainly different. I did Lisp a long time ago in a a final year programming course and I remember I had to buy another keyboard because the 9 and 0 keys (with the round...
18. ## Thread: New to teensy audio, done some audio DIY

by Saibot
Replies
5
Views
329

### Hi good review but I notice you said you had a...

Hi good review but I notice you said you had a lot of noise and you are new to Teeny?
Did you try the HP filter disable? - "adcHighPassFilterDisable();" ?
Discussed...
19. ## Thread: Teensy 4.1 Suggestions?

by Saibot
Replies
10
Views
591

### Yes true but pins are precious

Yes true but pins are precious
20. ## Thread: Teensy 4.1 Suggestions?

by Saibot
Replies
10
Views
591

### "Yes, but there are also schottky that allows...

"Yes, but there are also schottky that allows only a 300mv drop, that leaves with 4.7v. Usually sufficient for most 5V circuit needs"

If your reasoning is valid the next device will also have a...
21. ## Thread: Eagle library with Teensy 4.0 (test)

by Saibot
Replies
28
Views
1,783

### What I mean20965 is this - compare yours on the...

What I mean20965 is this - compare yours on the left with the previous on the right:
22. ## Thread: Eagle library with Teensy 4.0 (test)

by Saibot
Replies
28
Views
1,783

### Thank you very much - I like the separate USB...

Thank you very much - I like the separate USB Host block and it follows the footprint pins layout
23. ## Thread: Brain transplant! De-BOSS-ing a ME-70 with a Teensy 4.0

by Saibot
Replies
6
Views
315

### Staying tuned - Class D changed my long-held...

Staying tuned - Class D changed my long-held strong disposition for even-order second harmonic distortion amplifiers forever...
24. ## Thread: Brain transplant! De-BOSS-ing a ME-70 with a Teensy 4.0

by Saibot
Replies
6
Views
315

### Yes thanks I know that it is a much less capable...

Yes thanks I know that it is a much less capable device than your ME-70 which is why I am interested in what you have done with yours - it will be a more efficient approach than reverse engineering...
25. ## Thread: Brain transplant! De-BOSS-ing a ME-70 with a Teensy 4.0

by Saibot
Replies
6
Views
315

### Yes please - I have a Boss ME-25 which could do...

Yes please - I have a Boss ME-25 which could do with a backroom upgrade
26. ## Thread: COVID-19: A thread to share some thoughts and events

by Saibot
Replies
131
Views
7,462

### Yes and this is why I have changed my high blood...

Yes and this is why I have changed my high blood pressure medication...
https://www.sciencedaily.com/releases/2020/03/200323101354.htm
27. ## Thread: Bricked my Teensy 3.2 on the first try

by Saibot
Replies
13
Views
609

### Did you bridge two selection pads to make the LCD...

Did you bridge two selection pads to make the LCD an i2c instead of SPI? If yes then carefully check if they did not use zero ohm resistors to select the SPI mode which means you have a short from V+...
28. ## Thread: Audio Shield 4.0 + electric guitar input

by Saibot
Replies
4
Views
583

### I used both with an ATMega1284 with a +5v supply...

I used both with an ATMega1284 with a +5v supply but the MCP6001/2/4 data indicates a power supply range of 1.8V to 6.0V, and the TL97x family operates at voltages as low as ±1.35 V.
29. ## Thread: Teensyduino 1.52 Beta #1

by Saibot
Replies
82
Views
9,212

### Thank you both - yes I have one Rev D audioboard...

Thank you both - yes I have one Rev D audioboard and it works well with the Teensy 4

I am a little bit suspicious of the local supplier who "only" stocks the rev b audioboards - I suspect they...
30. ## Thread: Teensyduino 1.52 Beta #1

by Saibot
Replies
82
Views
9,212

### 19363 USB Audio working great now with a...

19363

USB Audio working great now with a Teensy 4 and a PCM5102A - thank you very much - as shown in left front of attached workspace picture.
I have noticed that unlike with the Teensy 3.x I...
31. ## Thread: Teensy 4.0 hardware / schematic question

by Saibot
Replies
6
Views
605

### Paralleled diodes is a big no-no - I assume it is...

Paralleled diodes is a big no-no - I assume it is connected to a pad or unused
32. ## Thread: Audio Shield 4.0 + electric guitar input

by Saibot
Replies
4
Views
583

### 1930019301 Use the line in (combine the L and...

1930019301

Use the line in (combine the L and R)
Then use the first stage OpAmp from either:
https://www.electrosmash.com/pedalshield-uno
or
http://wiki.openmusiclabs.com/wiki/StompShield
...
33. ## Thread: 24 Analog Outputs

by Saibot
Replies
20
Views
1,374

### Yes you are right the (de-)multiplexer such as...

Yes you are right the (de-)multiplexer such as 4067/4051 type, will not hold its analog voltage value - for that you will need either some of the old-fashioned (output) sample and hold circuits or a...
34. ## Thread: Starting 1.52 Beta Soon

by Saibot
Replies
24
Views
2,388

### Yes as my first post I would also like to...

Yes as my first post I would also like to congratulate you on the fine work you are doing with the Teensy - hope you will continue for many years.
As I have previously done something with the VS1053...
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