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Good points. I had assumed (perhaps naively) that the OP had connected the hardware correctly. The Adafruit guide (if purchased from there) does mention that these are really 5V devices and using a level shifter when...

On similar occasions, I found USB Oblivion to be of help: https://www.cherubicsoft.com/en/projects/usboblivion#.V7XRbcIkqIU Of course Windows will have to "reinstall" all your USB devices at first connection, after...

Wouldn't say impossible but would be odd - it looks like spurious transitions are getting into the strips which may be hardware. Do you have any form of level conversion from the 3.3V Teensy to the 5V strip? Most but...

With a vanilla Teensy loader that should have not been possible since the loader should check what it is connected to, but if something has happened, load your LC code in the Teensy loader and then pressing the button,...

You have a two second delay in your loop for the blink - remove it and just leave the delay(2); or if having the LED blink is important you want to either use millis(), ellapsedmillis or just ...

I was going to note that - but it is working now with a replacement prop shield so it got enabled at some point?

Yes running that release on 4 machines here and put it on a few others. I have slow but costly broadband - and update numerous computers so I pull the ISO or bootable USB copies of install and KB updates as they appear....

I'm working in the IT domain for 30+ years, now. As a developer, as an administrator, as almost everything, in heterogenous environments (DOS/Novell/Win/Mac/Linux). Sorry to say that, but in my long term experience, I...

There is a PJRC published reference board on OSH Park with BOM - linked from PJRC.com - it relies on the PJRC MKL02 bootloader. Buying that from PJRC is some compensation for using the design. With that Bootloader MCU...

never funny, but possibly true :) Hey Tim, thats the release you got! lol

The AMP must be turned on with pin 5

Well, you're possibly right. I'm curious about further progress!

This is absolutely awesome! Congratulations for your success! I watched your presentation video yesterday and I wondered about how your board has been assembled. Reading through your hackaday page brings me to the...

Ok I used a 1k to 3.3v on the pcb and a .0047uf ( 4700pf) cap to ground that fixed it completely

I don't really think so. There is no way to match Teensy 3.6 on cost - I'm estimating that this will be around $40 per board, or roughly $11 more per board than Teensy 3.6, so I think these will remain niche products...

As much as I like this approach especially for prototyping custom teensy projects which needs more pins: Do the changes since the initial idea in the first post, i.e. getting rid of the expensive extra hardware, not...

I already saw that, great little thing! Although it does not really change my uncertainty related to my planned USB/SD signal path. So in case my first post did not describe my thoughts clearly: How are the...

I don't THINK I did. I can't rule it out 100%, but I all I remember checking were pins that were associated with my current project, like the pins I listed above (VIN is not used in my project). Would there be a way to...

The USB power goes to a 3.3V regulator on the board, so 5V power from USB doesn't kill the board. At least not unless you do something like touch a wire between VIN and 3.3V.

Thanks for the clarification. I kinda assumed at first that it should be 0-39 but was confused by the readings. i fixed the code and added a troubleshootINT just to see if I was messing up the currentPATTERNarraySLOT...

Did you do anything that should have damaged the AMP? Is it HOT to touch?

First quick note: Arrays in c start with index 0. So valid indexes for :: float tappedPATTERNarray; would be to and this would be right: if (currentPATTERNarraySLOT > 39){ currentPATTERNarraySLOT = 0; }

Never mind, amp is blown. Have another prop shield. It works.

SOLVED! Thanks for the help! It was that particular Windows box. The problem Teensy worked just fine on Linux and on another Windows box, but won't work on the original Windows box, even after a reboot. I think...

Just as note the T3.6 code will run on a T3.5 as well as I mentioned in an earlier post.

Some nice T_4 details on yet another thread. Sounds like the potential is there. Frank asked what I was wondering when I saw 2MB for Flash - having a static write area onboard will be useful. If the ESP folks unit can...

Technically, it's supposed to be possible. But this is one of hundreds of things I've not yet actually tried. If you look at figure 30-1 on page 1477, you'll see the diagram showing the flash arbitrator which is...

My question was more whether you thought it technically possible. So, yes. Fine.

Maybe. I believe the way the ESP folks do this involves a partition setting, where a portion of the chip is set aside for filesystem and can't be used for code. I'm going to consider this sort of thing much later,...

Would it be possible to use the free space for a filesystem?

The flash will be 2 Mbyte, the largest available in a 2x3 mm package.

Sounds like all is well, indeed it is a tiny difference - I just wanted to make sure there wasn't 'one more thing' needing attention that might break something more significant later. My counts of cycles is just over...

Looks interesting Brian, i’d be interested in them...

Yeah - HyperFlash - didn't even get as far as finding available parts to see size or cost - new and developing - assumed they could be more than the MCU. Showing off indeed. Did you settle on a Flash size? I'm not...

That's impossible. There's something else wrong with your code. Post the ACTUAL code that shows the problem.

Apologies - I edited around and had got pixels.show() after the clear in setup but this wouldn’t do anything. It seems to not do anything until loop() starts

Definitely not using Hyperflash. The chips are physically too large to fit and they're far too expensive. Performance wise, they only help if you have a huge program where you need a lot of code that executes directly...

If we want to have this merged into Teensyduino public releases, I think we'd better expect to require a special preprocessor definition for the extra pin numbers. Say, #define MK66_extended_pins or #define...

Congrats! Looks like a nice project for those who need many I/O and peripheral pins and who do not aim for 1/10" breadboard compatibility. I don't see this in concurrence to the T4.0 which will most probably win a price...

Slightly updated, a new render is below and a new schematic attached. Minor update since v1.0-rc3: Added USB0 +/- to the through hole headers as well as VREGIN_0. VREGIN_0 is the other half of the muxed power...

I got it working :D ! I hope the title of this thread isn't too vague, I'll certainly be more specific next time. I am not 100% sure what the difference between the working and not working code is, except I moved the...

With your IDE hex I get: Interestingly the "Microseconds for one run" and the Dhrystones per Second" are exactly the same as I get with VisualTeensy. Anyway, since the differences are very small (100018/100008 =>...

Thus, you could add a show() directly after clear() in steup()

Thanks for the added detail. I wasn't sure if updated gcc might have any awareness of such hardware organization and help prep for it to minimize stalling. Using 4 bit QPI, okay I wasn't sure if one of the more...

pinMode(pin,INPUT_DISABLE);

Hi Frank, note the edit I made on the original post including the source code!

pixels.clear() only clears the pixel locations in memory. It doesn't update the strip.

Regarding the new hardware, there's a consistent theme of "it's complicated".... Yes, the flash memory is 4 bit QPI DDR clocked at 60 MHz. So the raw data rate, minus command overhead, is 60 MByte/sec. When...

I have been working on a project. where i have to measure change in resistance with the help of another reference (should this reference resistor value be small??) which is basically a voltage divider. The voltage...

If it helps, here's a schematic of a fully pinned out Teensy 3.6 I've been working on. It has not yet been built, I'm working on some minor changes (hopefully the last revision, but the changes are feature additions to...

I agree. You will also need to edit 'boards.txt' to use c++17. I use a makefile to compile the project I have that uses std::variant, you can have a look at my compile and linker options, these would be the same that...

When using Teensy 3.6, there's also a larger 8K cache to keep in mind, and of course the same small cache memory inside the flash controller.

You need to invalidate the cache, otherwise you're still reading the old data from the flash controller's cache.

Yes and no. Yes, an upgrade will happen eventually. But no, not "anytime soon". Definitely not before Teensy 4.0 is released. An update to the arm_math.h library (aka CMSIS-DSP) will probably happen before the...

Have you tried that problematic board on other computers? Ideally you might trying Linux or a Mac, if you have access to any such machines. That might help you to know whether the problem is on the Teensy side or the...

Hi Mike, Sorry I've been offline for the last couple months. Been consumed with delivering RTK units for a small fleet of drones. Your YAKF sounds interesting, I'll take a look! You and Brian were talking about...

Yes, I understand that programming is over HID, but it seems to be a related USB issue to my USB serial problem, as programming over USB HID also has problems with this Teesny -- it does not automatically program...

Thanks, that's good to note. I'll check into why that's happening to see if there's another solution. I can't speak to your questions about power draw, but I'll happily dig into the datasheet and try to verify what...

Sounds like we need a basic Player for soundfiles.

is he declares +1, he will still run into the == issue, he should be doing if (num == MAXCHANS -1)

programming is done over HID, NOT serial. If you have serial driver issues, it's not HID related..

No. Because if num == MAXCHANS you will still modify rcvals. And write past the end of the array. Either change the sanity check or declare rcvals to reflect the 1 based nature of the channel index.

Given the sometimes-flakey behavior of Windows driver installations, I’m more inclined to be happy that I found a solution rather than obsess over why it worked.

Thanks, that does seem to be a similar problem to mine. Although, I'm not sure if this has always been a problem with this particular Teensy. It doesn't make sense to me that I would have to reinstall the Windows...

More likely explanation would be clicking the "skip" button in the installer on the driver step, or when Windows asks you to confirm you want to install the driver, clicking the cancel button. Either of those would...

See my post here: https://forum.pjrc.com/threads/54133-New-Teensy-3-2-Won-t-Show-Up-as-COM-Port Seems similar to problem I saw. Working now.

Please re-read my post more carefully. You have described my problem exactly; the serial port does NOT show up when I load a sketch which has explicitly been compiled with one of the USB serial options. Also, the...

Thanks for the replies. Turns out, the straight forward code at the ftp site linked by @el_supremo has perfectly adequate performance for my application. No need for anything better in this case. As they say, “better...

Thanks for the replies all. But, the explanation doesn’t quite match the specifics of this case. Recapping: * Plugged new T3.2 into Win7 computer and it didn’t show up as COM Port -- as expected given Paul’s...

See Post #1 RAM is full speed 256MHz. USB is clocked by the 48MHz source (same as with 216MHz)

Good to hear you got it working. For those who want to try Teensy with the MCP2517FD the code is in GitHub: For Teensy 3.2 https://github.com/skpang/Teensy32_with_MCP2517FD_CAN_FD_demo For Teensy 3.6...

The fastest way is to download the arm GCC embedded toolchain as zipfile, and overwrite the original toolchain in arduino arm(watch the paths). Pretty easy. Flash in T4: 4 Bit parallel access, I think(?) - Like the...

At the new 256 MHz core clock, what about the various bus speeds (RAM etc.)? Standard or overclocked as well?

That seemed to indicate the perfect time to update the toolchain - given the nature and power of the pending T_4 and the hope it will good for the coolest new AI with the components in a newer CMSIS (?). Getting that...

I think that actually, PJRC's priority is rather on bringing a new product to market. Thus, I'd not expect a gcc upgrade soon, especially since the actual version works very well with the Teensyduino core files and...

Hello, maybe this can help https://github.com/macchina/LIN The code seems to be for some kind of Arduino Due clone, but it's using only Serial and digitalWrite. So modification for a Teensy should be possible. ...

Yes, that would work. As long as they have valid USB connect, they can be programmed. I have 5 T_3.6's just now on this computer - and all 5 can be sent the same HEX in parallel if desired and multi selected in the...