TheHermit
Senior Member

LOL!!! "<tongue-in-cheek>" - The popular British pass time of 'extracting the Michael' from a person, with such straight faced subtly that the recipient replies, "Well, thank you for the kind compliment, Sir." Thank...

Thanks for the info, BriComp. Now I know.

Exactly. Not forgetting KurtE and Paul's contributions. I was little more than the score keeper. Yes, you're correct that it was Laserpoint. Andy Holmes was their Gov. They were located next to Cambridge Lasers,...

Nah, you just handed me the perfect pass, Mate. It's been a pleasure working with you. Yes, now I'm much more confident about running 1.57b2 on my projector, now. BTW, I used to work for a Cambridge company back in the...

OMG!!! A PERFECT SCORE, WHILE FLYING BLIND!!! USB Type 1.55 1.56 Hermit's 1.56 1.57b2 msg #64 Test #2 -------- ...

That takes me to KurtE commit request for TyTools' repo, which appears to have nothing to do with a ver 2.57b2 installer. Am I blind, as well as dumb? Edit: Silly questions. Found it! a few posts down in the same...

Okay, I'm already lost. After reinstalling Arduino, I followed Paul's link in msg, which only took me to the edit of output_pt8211_2.cpp. So, I headed to the parent folder to get the whole 1.57b2 install package. But,...

Here's what I have so far, using the same code from before, with the same equipment and Arduino install running ver 1.56, apples to apples, except I've since removed the Audio Master from github, because it wasn't being...

On it. Didn't Paul already commit that change to 1.57b2? IOW, won't it already be in place when I upgrade? Does that commit include the entire Teensyduino installation package or only the mods? Also, isn't there...

I can take that on, once the PT8211_2 case has been ratified by @TheHermit and @boxxofrobots. Okay. I can do whatever tests you guys need by using the miniPC and an oscilloscope, instead of the Surface pro and laser...

Cool. Glad to see that the sketch was helpful. Soo... you added the AudioOutputUSB object to push audio through USB, as well as I2S? the T4 never ceases to amaze me. You're where I was ~ a week ago with recovering...

It looks to me as though the pt8211_2 object simply enables pins 2, 3, & 4 for serial I2S signals. So, isn't it logical that the USB should be set to one of the Serial communications modes to interface with the...

invalid conversion from 'volatile audio_block_t* {aka volatile audio_block_struct*}' to 'audio_block_t* {aka audio_block_struct*}' old_block = block ; Sure smells like a mem allocation error to me. "When it...

Okay, back in msg #64, I demonstrated that, with boxxofrobots' configuration of using Quad I2S with pt8211_2, it would always fail if there were either no patch chords or only 2 patch chords, regardless of which two....

Hey mjs513, Since you are where you are, with a pt8211 al connected, and being so helpful, I have a little reward for you. I sneaked an Easter egg inside the sketch of msg # 59, just for the amusement of folks with x/y...

@mjs513, Thanks for going above and beyond to help with @boxxofrobots' issue. It's also comforting to know that the removal of FLASHMEM is working fine in the beta. Your test results are similar to those I posted in...

Okay, let's eliminate as many variables as possible by testing your installation with the most simple sketch possible, like the one I sent to you. With that, you can test different USB settings to determine which ones...

So, my attachment didn't work, either? There's nothing in it telling the T4 that the SGTL5000's even exists, so it should also work on your solo config. Didn't you back up the output_pt8211_2.cpp, prior to editing? I...

@ Paul, Okay, here's the deal. I'm only a novice code-head, already struggling to make my code work on $1,000 laser projectors, with very sensitive $400 galvos that could easily be damaged, just from clipping. So, I'm...

@boxxofrobots Sorry to hear that you're still having probs. I just ran the attached sketch, with both Audio and Serial + Midix4 USB configurations and it works fine on ver 1.56. Unfortunately, I'm not in a position to...

I'm more than happy to contribute in any way, Paul. What comes around, goes around, right? But, I'm not understanding what is being asked of me. As I mentioned in prev msg, my hex audio configuration works fine in all...

KurtE, It is already working fine, provided that I specify Serial* under USB Type. Isn't that what you're wanting me to test after removing the FLASHMEM? I need Serial + MIDIx4 for my project, anyway. Am I trying to...

Wouldn't this problem simply disappear, if the T4 PT8211_2 were only assigned to pins 2,3,& 4 and had a breakout PCB to match? But, what does The Hermit know about this stuff, anyway? :cool:

if it's any help, ver 1.56, config_i2s is also wrapped in FLASHMEM in output_pt8211_2.cpp.

@mjs513 Thanks for the help, but I'm still on 1.56 and in the middle of developing a project with very expensive equipment. As a novice, I'm already struggling with stable libraries and my gut tells me that it would be...

LOL! Just noticed that you're from Tucson. So am I! Does it work with the USB Type set to 'Serial' or 'Serial + MIDI + Audio"? That's the key.

Okay. So how would you like to hear a pair of boring, phase shifting 1kHz Left & 501kHz Right, (aka rotating x/y figure 8 on a scope.) coming from your PT8211, using pin # 2 for DIN? Here ya go, but you need to set...

Congrats boxxofrobots! Are you aware of being able to move serial ports to different pins, by using Wire2?

Thanks Paul! That explains the inconsistent failures with some of my sketches. However, boxxofrobots presented another caveat (msg #24), regarding the patch Cord connections to the I2S_QUAD_DAC, while trying to...

Thank you for the info, KurtE. Yes, time for me to fess-up. I just discovered a problem in a section of code that was causing no x/y output signals. Looks like I made a mistake while learning to use 2 dimensional...

boxxofrobots Don't despair, my friend. I just learned something while trimming down one of my working sketches for you. After deleting all of the laser fluff, I only had 4 waveforms feeding a mixer on L/R channels on...

Hmm... You're having this problem on a 2011 I5 notebook, while I'm having the same problem on a 2013 Surface Pro 2 (discontinued production in 2014). But, my I5 miniPC, purchased only last year doesn't have the problem....

Yes, I understand that's how it is supposed to work. Thank you for checking the code to confirm that's not the issue, Paul. Ahh, you obviously read my comment before I realized exactly that and deleted the...

Thankyou for the offer, Paul. are you not feeling a little deja vu? We've already been down this road, ref msg 14. As previously mentioned, I can also test the same 'broken' sketch on a different PC and it will work...

Okay, I'm working on a theory. I've been cutting and pasting between sections of a working sketch and the broken ones. Nothing made a difference. Then I started cutting the broken sketch back to basics, including...

Glad to help, if i did. Interesting, I was just thinking about ditching Windows 10 on the Surface and installing Ubuntu, as well. The HAL is too old for updates, anyway. I only purchased the Win 10 PC to run laser...

Thank you for your time on this, Paul. It has me completely baffled. I have 2 Win 10 I5 computers, one a miniPC, the other a Surfce Pro. Both are set up nearly identically with Arduino and I can change over the Teensy...

Wow! That's a lot going on and above my pay grade. ;-) I don't blame you for considering alternatives. I've done the same. Paul once suggested the following: "CS42448 can use either I2S or TDM. Normally TDM is used,...

Thanks for helping out, defragster. I just reinstalled Teensyduino on the Surface, which stopped working last night, but only the Audio selection during the installation. Now, that same sketch is working fine. Yes,...

I just tested your sketch on my laser projector and it worked fine with no modifications (except to reduce the amplitude to .8) on my Arduino installation. So the problem isn't within your sketch. Since the DIN signal...

Bummer. That's very puzzling and disappointing to hear. Thank you for reporting back to let us know. Perhaps the libraries are stored elsewhere in Ubuntu? Try searching your libraries from inside the Arduino's IDE,...

Yes, that sounds like the same issue I had. I suspect that you're also seeing a warning, whenever you compile, saying that there are multiple library files named 'Audio.h'. I believe that's because one from Adafruit is...

Hi Dmax, Was just laying out a differential amp board for the model II of the Teensy Laser Synth module. Circled back to have a closer look at yours. I'm assuming that you're using the 16 pin version to provide 6...

It's coming along nicely, thanks. Just got the preset buttons on the Akai MIDI mapped to the QOSCs, with 8 channels in 8 columns and harmonic waveforms in rows. Now, I can select the image frequencies, plus 2 LFO's, and...

Paul, Just a quick heads-up regarding the missing I2S port 2 issue. Clean installs of Arduino and Teensyduino didn't fix the issue. It appears that the problem is being caused by Adafruit's Audio library ver 1.0.4...

Thank you, Paul. That's very helpful. ".... procedures for MacOS, Windows, or Linux?" Sorry, I should have previously specified. Windows #1 procedure sounds like the best option forward. I won't waste more of your...

Thank you, Paul for testing a Teensy 4.1 with the latest 1.57-beta1 Teensyduino. After you had explained that the Teensy will produce those DIN, FS, & BCK signals, regardless of whether the PT8211 is connected, I...

Thank you, Paul. This is a basic Hex audio test sketch, which was working fine, prior to last night. At the time of failure, I was intermittently (between code edits and downloads) generating several (~4) 600 Hz sine...

Yes, this is the modified pin configuration on the PT8211_2 AudioOutput object that I needed to use in order to stack the PT8211 shield with the SGTL5000 quad shields for hex audio. It worked great, until last night...

Dmax, Thanks for your feedback. Yes, I came from the days of GS124 open loop scanners and understand the inertial challenges of resonance peaks and the need for precise damping and feed back in those old scan amps. Of...

Dmax, This looks like a great start to something ;-) So, you're using the pixelblaze sensor to digitize ILDA imagery converted to .wav, inputting that into the Teensy, then using this differential amp circuit to...