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Yes, thank you too.
I notified Paul about this issue.
You can contribute to the Wiki

No, you are funny :)
The 5V are *before* the voltage regulator.

Teensy 4 is NOT 5V tolerant. Except VIN or VUSB no pin can stand more than 3.3 Volt.

@Paul, important: Please edit this page: https://www.pjrc.com/teensy/tutorial4.html
5V is not good..

https://forum.pjrc.com/threads/65961-analogRead()-on-Teensy-4-0-not-linear?p=268091#post268091

ATTENTION 4.93 Volt is much too high and will kill the Teensy.
The Teensy 4 is *NOT* 5 Volt compatible.

I take that "small" back.
Actually, the PLLs are locking within 100 CPU cycles @ 600MHz. Pretty fast!
More than fast enough to generate and transmit a stereo 88..108MHz FM signal... :) with...

Dito !!

PulseIN is blocking on all Arduinos.
So, the pulses all start at the same time?
That would be doable.

Back to Topic:
My Picos arrived today.
Did not do anything with them. But I read how to setup a Windows environment.
Phew.. not that easy for a beginner who had never done anything with...

Where ?
The output is only a suggestion. Can be customized in 5 minutes. But if I do not even know if the tool is even considered, meaningful changes are difficult :)

I think the main problem is, if you want to make sense of this, you need multitasking.
The advantage of NINA is, it has a dedicated CPU(ESP) and the software for the ESP already exists, and is...

Little problem was to identyfy on which side the in- and outputs are.. :) A little silk-screen print would be good (or is it there and I did not see it?)

At the moment I use the board as automatic mixer (192KHz) on my desk - switches automatically betwen TV, WLan-internet-Radio, PC, and current Teensy project.
Was 30 minutes to write the program,...

They already have a lot of different chips: https://www.nxp.com/products/wireless/wi-fi-plus-bluetooth:WIFI-BLUETOOTH

Not sure what version it is, but I have one of these Boards. Inputs & ouputs work all! Sound QUality is great.
As usual for this chip, it gets hot (is this a problem?)

This one? https://oshpark.com/shared_projects/gVFy0fWQ

Arduino has announced a board with RP2040 + Wifi + Bluetooth ("NINA")
Heise says, it is this module: https://www.u-blox.com/en/product/nina-w10-series-open-cpu , and that it uses an ESP32.

Yup,

the working program looks like this:


// For Loop test lighting the LED
const int ledPin = 13;
int x;

void setup() {

Haha...shipping US $557.11
Ebay sucks.. they should stop that.

LOL, of course, the Teensy is the problem...

Nope :)

Think twice: why is x a constant in your program?
Then, a bracket "}" is on the wrong position.

(No worry, just yesterday I did not...

I measured mine (cheap but good) - it uses 0.13V
In "diode measure" mode it uses 3.8V

Note, the i.mx.rt uses much less than 3.3V internally. I *think* absolute max is 1.6V (only when overclocking)

Well, your program compiles fine for other users.

Nope.

Quite possible.

I saw now that the ADC uses a timer that is connected to the Core-Clock:


const int comp1 = ((float)F_BUS_ACTUAL) / (AUDIO_SAMPLE_RATE_EXACT * 4.0f) / 2.0f + 0.5f;

So, this...

Do'nt you want to add it here, too?

I wouldn't like links to Adafruit, Alieexpress etc. We don't have to do the marketing for big companies.
But having links to user-contributed things and Tindie is OK for me.

To make it clear: I...

LOL

Your're right, of course.
That comes from too much editing...

THANK YOU

I stop editing code for today.

I added the error checking to the sourcecode in post#3,
It does not show an error.

@Paul, that was an fast answer :) I'll check for errors.

yes, always post complete code:


#include <DMAChannel.h>

#define SAMPLES 128
__attribute__((aligned(32))) static uint32_t fm_tx_buffer[SAMPLES];

DMAChannel dma(false);
volatile uint32_t...

Hi,

i can't get DMA to PLL working.. the destination is CCM_ANALOG_PLL_VIDEO_NUM (0x400D80B0)
Is there any special reason that prevents DMA-writes (uint32_t) to this address ?

(i need this...

Do you find it disappointing too, that several manufacturers of cars, washing-machines, and tv-sets exist?

No, it's good. Without competition, there is no progress.
Arduino stands still for too...

Best is to buy a good Logic Analyzer.

Yes.
Un-install that.
Download the Windows 1.8.13 version (zip-file), install it (best is, to an new folder "c:\Arduino"), then Teensyduino.

There is no version 18.3 :)
Just do what Paul said. Download 1.8.13 from the Arduino website. No need to check any version files etc.
That makes all unnessary complicated. Don't try to find the...

I just say, if you don't do it now,

a) others will be faster
b) the longer you wait, the harder will it be - the api will grow.
Then,
c) its a selling point
d) its worth the risk :)

Yes, it prints a message, and switches off after that :)

It switches off, i think that's the best to prevent further heating.
Nobody knows wether it crashes again, so.. just switch off.

That's not the point.

The Raspberry is old tech, too. And the first Raspi was old tech, too.
They sold 40 or 50 million.

Yup, and of course it's possible that the CPU gets unstable at some point.
That's why it's called OVERclocking.. NXP says more than 600MHz is too much. You don't pack 3tons on the backseat of your...

Which problem with the IDE?
It should work out of the box. Own builds will not work with Teensyduino - it checks the version, on install.
There are no problems.

Something is wrong with your...

If the processing triggers it, the processing is the reason.. i.e. a bug in you program? SOme kind of timing problem, perhaps with interrupts.
"pass trough" involves some processing, too. the audio...

If you guys tell me what chrashes (with a short example program) I'll look.. at the moment i think a crash of SPI is unlikely, too..
I remember it uses an other PLL. This thingy has seven of them...

Ok, I tried this:


#include <Audio.h>
AudioInputI2S i2s1; //xy=115,136
AudioOutputSPDIF3 spdif3_1; //xy=369,136
AudioConnection patchCord1(i2s1, 0,...

Hi Paul

do you have some time next week to merge some PRs?

If it locks up, it might be a bus hardfault.
Can you post a short program that locks up?
My private core version shows such things.

Which SPDIF output do you use?

I still think BASIC is ideal for beginners.
And I don't like Python.

But if I had to choose between nothing or Python, I'd choose Python..

Sounds reasonable. The bus clock changes.

No, thank YOU for posting it.

I think so, too.
https://github.com/PaulStoffregen/Audio/pull/378/commits/dc9b15b5d8625d3b08327b744c185ae968f969ef

Audio uses its own PLL.. hm. interesting... wonder what the reason for the glitches is.