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Just to post my resolution, I ended up unsoldering the I2C backpack and just switching to the 16 pin connection shown here: https://www.pjrc.com/teensy/td_libs_LiquidCrystal.html Specifically, I followed the "Using...

T_3.6 won't tolerate any non-3.3V signal to any pin. Anything attached would need to be constrained to that range on output and accept that as high value when T_3.6 needs to signal it. The T_3.5 won't be harmed by...

We all have been newbie's ... So welcome My guess is it should work. Which one are you using, I see two of them up there. Looks like it should work with 5v or 3.3v. Might help if you post a picture showing how you...

DMA time of 45 us was for 1024 samples, so that's about 45 ns/sample. Using direct read of GPIOB_PDIR with FASTRUN FASTRUN void capture() { for(size_t i = 0; i < capture_count; i++) { buffer = GPIOB_PDIR;...

why would you need a timeout? the moment the scope is done the lock is automatically release, including if you do any returns;.

Thanks for the suggestion. Although 45 us is faster than what my attempt at direct port reading provided, it is 3 orders of magnitude too slow. I ought to have specified the following in my initial post: The 10 MHz...

The good news is all you have to do is put "const" in the array definition and the linker will place it only in the flash memory, saving precious RAM.

This is something I haven't thought about, but there's definitely some of the arrays that could be defined as constants.

Hi, i skipped through the thread but didn't find an suitable answer to following question: Are there any (good/ strong) reasons against extending Threads::Scope with a constructor that takes a second argument (int...

OK, this is working and can decode the hours and minutes: // Funktioniert mit Teensy 3.6 int DCF77_pin = 2; #define DCF77_POWER 28 // PIN to switch on the module int DCFSplitTime = 170; // war 140...

It's not clear why you need DMA?? FWIW, here is a sketch/discussion of reading low order 8-bits of GPIOC_PDIR into 1024-byte vector with DMA....

The analog inputs should be fed from a low impedance source, otherwise the impedance of the analog input is essentially in parallel with the impedance of the pots used. Either change your pots to a lower impedance...

OK, now I found http://muck-solutions.com/?page_id=1637 I can compile the following code and I get a blinking LED with 1 Hz (as far as I can see): #include <DCF77.h> //#include <Time.h> // Funktioniert nicht mit...

Since 240 / 96 = 2.5, I'll just try throwing 3 or 4 NOPs in there and seeing what it does first. I noticed that about the AVR SPI reigsters as well. One of my troubleshooting steps was replacing all of those...

I just picked 100 us delay at random. You can experiment to see what works. Also the ethercard lib uses AVR SPI hardware registers. Paul's teensy core emulates many of the AVR registers, but sometimes that...

Thanks, yeah that makes sense. I'm actually running at 240 mhz. (Necessary for this project) I did try it at 96 MHz, but did not remove SPI.begin(). I know the enc28j60 library also initializes the SPI bus itself,...

Hi all, Just to inform ... it was a usermistake not due to wrong wiring but a simple code-mishap. The library I was using for SPI had a setting for the SPISPEED that was different from the SPISPEED the ILI9341 is...

I had to remove SPI.begin() to get your sketch to work on T3.2@96mhz. and if you really want to change SPI clock, SPI.setClockDivider() needs to follow ENC28J60::initialize(). HOWEVER, sketch didn't work on...

Good to hear you got it running. I did not have chance to look at it on pc and compile it, but was wondering what the compiler summary said about data usage. I could not tell in my quick look if any maybe many...

I've figured it out with help from the creator of FastLED. He replied on FastLEDs google+ group. His guess was that my gigantic arrays with LED data ended up overlapping some of the memory allocated by the OctoWS2811...

I would need a way yo let customers do a firmware update from a PC via USB. Can I use a different open bootloader for that? (just flashing a binary image)?

Actually I am not an engineer from Pozyx. Adding delay(1000) after opening of the serial port seems to have solved the issue but further tests are required.

See https://www.pjrc.com/store/ic_mkl02.html and do a fire google at the forum for 'custom teensy' It is certainly possible but the bootloader is closed so a clone would need to buy them from PJRC Once your...

I would be interested to know if there is any new information on this. I have at least two Teensy-based MIDI interfaces that I will need to use on the same system soon, and juggling back-end files that shouldn't change...

bigpilot: From my understanding, the comm port defaults to that, but Ill look and make sure. defragster: I will look at that link and hopefully learn something. I have managed to find a VB10 program that acts as...

Does this lead anywhere useful: blogs.msdn.microsoft.com/usbcoreblog/2015/07/29/what-is-new-with-serial-in-windows-10/ It has code links on github at:

Have you tried setting the start and stop bits and parity? Below is some of my code I once wrote: m_SerialPort = new SerialPort(strSerialPort, BAUD_RATE, Parity.Even, 8, StopBits.One);

defragster, thanks for replying. I think I understand you to say that an EOL or CR being sent could be tripping it up as a "non 1". I'm not seeing that using SerMon or RealTerm, they both persistently change the...

Hmm, so I tried the UIPEthernet library. Compiled one of the examples. That doesn't work, either. Just to make sure my board hasn't gone bad since it was tested on my Arduino, I hooked it back up to an Uno and ran my...

Hi, I am having very similar issues, although not with a Teensy. The RFM69 works flawlessly with Arduino Unos but does not receive when mounted on an Arduino Yun (first gen). I too was wondering if it's an SPI issue...

Not sure what the expected versus observed behavior is? There is a line end character from SerMon after the sent char. With SerMon the code above would see '1' and enable LED for one 50 ms delay in that case, then go...

Thank you for sharing！:)

Sorry about not including code. I've just made a simple sketch to demonstrate the problem. The firmware value returned is 7 for me. I don't think the wiznet adapter is an option for me, because the last time I looked...

My suggestion would be to back out the changes to the FastLED library one by one until it works again. Edit: It may also be in any other library used that changed over that time period. I ran into an issue with...

No success. Tried giving it delay(2000) and still nothing. Also tried RealTerm and it worked sending an ASCII 1 and 0. Still a serial terminal, but an independent one to see if there was a difference. bo

Hi, thank you :) I now finally got some thicker cables with solid-core and it seems to solve the most of problem. But now somehow the whole thing seems to be unstable.. the SerialMonitor often stops (but is not...

The forum rule requests that you provide a working sketch (use CODE tags #) that demonstrates the problem. How have you wired up the ENC28J60 to the T3.6? Which version of IDE are you using, and do you have a link...

did you try putting a slight delay in startup? void setup() { pinMode(LedPin, OUTPUT); Serial.begin(9600); delay(1000); } I say this because just the serial monitor will work doesnt mean an external...

Sorry, the Arduino code works, and is very basic so I can test, so I didn't think to post it. const int LedPin = 13; int ledState = 0; void setup() { pinMode(LedPin, OUTPUT); Serial.begin(9600); }

Hi, I'm working now on project with Teensy 3,5 and ADAU1701, and they works perfectly with quad_i2s output from Teensy. But like a normal human I want MORE!!! :-))) So trying to connect them via the TDM 8 channel (TDM...

If he puts the PJRC bootloader on the USB separate unit (if not already done), you wouldn't need bootloader chips on those 30x30 mm boards, this would reduce the cost factor if using 1 programmer for many teensy 3.2...

Would be nice for you to post your arduino sketch so we could see where the actual problem is located, the above code wouldn't really help us see the problem.

Wow, that's a lot of code and it uses a lot of memory. I'd be surprised if someone unfamiliar with it will be able to spot what's happening. If it were my project, I'd start from scratch and slowly add in sections from...

Ok, then will I buy it there, Thank you.

Hi Paul, One of the pozyx engineers is trying to update the library so it works with teensy and seems to be running into an issue where the code works sometimes and sometimes does not....

I absolutely love love love love love this concept. I'd very much appreciate a JTAG header.

Hello there - I've certainly used ones from this ebay seller https://www.ebay.co.uk/itm/2-8-TFT-LCD-Display-Touch-Panel-SPI-ILI9341-5V-3-3V-STM32-BSG/122881172441?hash=item1c9c49e3d9:g:5TsAAOSwp1RZfIO5 without...

Hi everyone, Thanks Sandro for digging into this problem! Because I can't test with serial flash memory, I've translated your code for the play_sd_raw.cpp and .h files. I've also added an externalised method...

The processor chips used on the Teensy family allow a great amount of flexibility in how the peripherals can be configured. I've only programmed the I2S interface on the Teensy 3.2. But the one on the T3.6 has similar...

Greetings, I've redesigned the reading of mailboxes and FIFO and changed the way read() is used. 2 new methods have been formed, ::readMB() and ::readFIFO(). They will be used to read either mailboxes or FIFO...

Hi all, I was googling for a way to build a synthesizer by means of the SID chip. I then stumbled on this thread. Can someone confirm I can use this library to create a synth (choose sounds, generate sounds, change...

Ya, there's no white here, just RGB. I like the calling it out deal. Perhaps I could call em out as Red, and Red 1 for example. I'll try it out in my test I'm running

I imagine there are three ways to solve the problem: Write a function that you call instead of setPixelColor that manually reverses the colors for the range of WS2812B's that use the alternate color scheme, and...

The descriptor info looks like pretty standard CDC-ACM (USB serial) protocol. According to the descriptors, it really should work. This is merely guesswork, but if (a pretty big if) the proprietary Windows...

Thank you very much Paul and Kurt for this helpful information. I am way behind getting test with teensy but i will try my best to follow instructions and provide feedback :) The device is really like a COM port on...

Perhaps work with the Pedvide ADC code a bit more. It has been well refined to maximize ADC read performance at maximum limits. IIRC it takes a couple of us to complete a single reading and 10's of us's to read with...

I am also thinking to made one. Just gathering basic stuff now.

sorry, here is the direct link to the excellent Borgerding paper: https://ieeexplore.ieee.org/iel5/79/33613/01598092.pdf

For me, it maybe depends on how integrated you need it to be with the Teensy. Example you could simply get the basic Sparkfun breakout board: https://www.sparkfun.com/products/8276 You will need a set of connectors:...

Thanks for the replies. I'm a little confused by this, I have to look at the connections for that board a little closer. Paul, do you know of an xBee adapter that would be better suited? Thanks!

Thanks Paul. I was hoping there were some other Pozyx users who may have kept up with this. If you have a chance could you look at the latest Pozyx library and see if there are any changes since you made your last mods?...

Hi Mike, filtering with FIR filters in the time domain is very inefficient when it comes to large filter sizes (= steep filters). It is much more efficient to filter in the frequency domain, which involves an FFT, a...

I know you can probably get the same information with Windows... But what I have done while trying to support more devices with the usbhost library, is to try plugging the board into some linux board. Could be a PC...

Hi. Can someone explain in intuitive terms how a convolutional SDR works in comparison to a traditional sdr either using weaver method or sideband filter techniques.

Filtering of supply voltage for microphones It is vitally important to filter the supply voltage for the mics you are attaching to the microSoundRecorder. Test with digital mic ICS43434 (which has a maximum...

Thanks Paul for clarifying. I typically use one connected to the pc with the usb and the other is connected to the T3.x through the tx/rx pins and neve use the xbee usb on the T3 side.

Just to be clear, I do not own the Pozyx hardware. The changes I made were based on the same sorts of compatibility issues that are common with all Arduino libs.

That one looks like it has a USB-serial chip. You might need to disable or disconnect that chip's transmit signal. If both Teensy 3.6 and that chip connect both have their transmit signals wired to the XBee's receive...

Teensy 3.6 is currently the only Teensy model with USB host capability. To connect USB devices, you'd need this cable. https://www.pjrc.com/store/cable_usb_host_t36.html The library for USB host mode is...