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Basically, luck. As I tried to explain on that other thread, the U2 chip is never meant to be desoldered and used this way. The behavior is undefined. It might work, might fail, might partially work, might be unreliable.

Basically, luck. As I tried to explain on that other thread, the U2 chip is never meant to be desoldered and used this way. The behavior is undefined. It might work, might fail, might partially work, might be unreliable.

Does "bootloader chip from a teensy 4.1 dev board" mean you desoldered and reused the chip from an actual Teensy 4.1 circuit board, or you purchased this T4 bootloader chip? Either way, 2 blinks means the JTAG connection is not working at all...

Thanks Paul, we resolder the MKL02 chip (not from here T4 bootloader chip) which was removed from teensy 4.1 dev board and it works! Code is flashing and test led is blinking. My question is why is this working? as it was paired for the MCU on...

As for the Teensy 4.1, I am using a board, I made maybe 4 years ago, and the one I am using is not fully populated. Don't remember if I assembled any others of that batch and if so what parts worked or did not work... The board is more or...

As for the Teensy 4.1, I am using a board, I made maybe 4 years ago, and the one I am using is not fully populated. Don't remember if I assembled any others of that batch and if so what parts worked or did not work... The board is more or...

Does "bootloader chip from a teensy 4.1 dev board" mean you desoldered and reused the chip from an actual Teensy 4.1 circuit board, or you purchased this T4 bootloader chip? Either way, 2 blinks means the JTAG connection is not working at all...

Thanks for the quick response. But we are not getting 10 blink, we are getting two blinks. Can you take a look at the design, maybe MCU is not running correctly to establish JTAG comm.?

Note: no promises on these boards, as I am a retired software guy.... I was laying out a complete board as a modified version of the earlier board I did for the Micromod. But decided to do a quick and dirty one that I can easily solder up. So...

This won't work, see e.g. https://forum.pjrc.com/index.php?threads/problemes-with-diy-teensy-4-1.74851/, post 2

The problem is almost certainly in //stuff, where we can't see it. In normal code I'd say you've allocated far too few audio blocks, and started the queues way too early, so they consume all the blocks before you even get to loop(). It may be...

We have a custom board with MIMXRT1062DVJ6B and used bootloader chip from a teensy 4.1 dev board. The bootloader is now blinking twice. We have double checked the MKL02 and IMXRT1062 connection, and pretty confident that solder is good. When its...

In the TI datasheet, the term SPI is carefully avoided... Not immediately clear what SPI mode is to be used. Sampling SDI on the falling edge, and clocking out SDO on the same falling edge. Then it's key you make sure that on the Teensy side the...

No, that is extended id format and for that second parameter is one from Arduino I am getting message sent successfully. but in teensy I am not able to read through can

Not sure if 0xFF0122 is handled as a valid standard ID format. Try with 0x122. Angelo

yes, both modules are connected with usb on same pc. #include <mcp_can.h> #include <SPI.h> MCP_CAN CAN0(10); // Set CS to pin 10 void setup() { Serial.begin(9600); // Initialize MCP2515 running at 16MHz with a baudrate of 250kb/s and...

Are the two modules connected with USB on the same PC ?? What about software configuration: same bitrate, standard/extended ID, filters, message sent from/to arduino+canshield Try with twisted pair cable, longer, about 1 meter. Angelo

I have a code for Teensy 4.1 that is working well with one SPH0645 microphone (mono). But now, I need to make it stereo, which is why I am here... The strangest part is that even the output queue stops working (seems to struggle at "sp_L =...

This is hardware connection. can you suggest what need to do?

My RTC_master sketch is fairly mature and works for the DS1307 module with inbuilt NVRAM, or the DS3231 module with 32K EEPROM chip. I use the permamanet memories to record itmes such as datetime when set, battery changed, drift factor (for...

Note: no promises on these boards, as I am a retired software guy.... I was laying out a complete board as a modified version of the earlier board I did for the Micromod. But decided to do a quick and dirty one that I can easily solder up. So...

Thanks, fixed it in v0.1.3

FFT on your graph shows bandwidth of 5Hz -> 80kHz. What is the bandwidth for your THD or THD+N measurement. Is it the same? I was looking SGTL5000 datasheet but they do not spec that for their measurement. They just say samplerate 48kHz. I could...

Check the connections, and there should be only two 120ohms resistors. One at each end of the bus Angelo

When I am connecting 2 can controllers with teensy board I am able to read and write data through can but when I am connecting can shield with Arduino and connecting to one of can controller then I am not able to read can messages which is...

There is an open source platform which includes a single-channel noise reduction algorithm (if this is what you are looking for). Maybe this is of help? There a links to the github rep and references. http://www.openmha.org/

Hi Paul I did try adding SPI.endTransaction() at the end of the loop but that also didn't work.

Good to hear that you already checked all these options. Good luck with the project! Looking forward to seeing progress and/or the final setup. These pneumanic cylinders sound impressive. I like such mechanical things.

Not sure if it matters but I'm missing SPI.endTransaction(); while using SPI.beginTransaction(SPISettings(20000000, MSBFIRST, SPI_MODE3));. Paul

Thanks, fixed it in v0.1.3

Hello everyone, I’m currently working on a part of a big project that requires me to read the converted digital signals from an ADC (ADS8354 - https://www.ti.com/lit/ds/symlink/ads8354.pdf ). I know the Teensy 4.1 has a 12-bit ADC feature but...

Note: no promises on these boards, as I am a retired software guy.... I was laying out a complete board as a modified version of the earlier board I did for the Micromod. But decided to do a quick and dirty one that I can easily solder up. So...

Real-world noise from the enviroment, kinda like the background noise reduction used in hearing aids. A lot of experience with signal processing for a student, but not so much about it on hardware (just had one lab and the different between that...

Thanks taj-ninny. The potentiometers were bought from a local store in Melbourne called Jaycar. The knobs on the end I acquired from my father along with lots of tools etc. when he died nearly 30 years ago. I don't know were he got them from, he...

Ahh yes! We did look into max4live but couldn't figure out the coding especially for 8 different audio signals going into their own FFT. Wasn't much info on how do to it from our understanding. For a previous iteration of this project we...

I agree that this sounds like a great project! Do I understand that right that there is a Laptop/PC with Ableton Live involved in the Setup? In this case it could be easier to do all the signal processing in software there and just send trigger...

@luni , I noticed an issue in your HiResClock library. In file T4xSource.h, function getTicks() returns tickType, which is uint64_t for T4. However, curVal, which is the variable meant to hold the 64-bit return return value, is defined as...

Would love to show this on the website. Any chance for a photo showing the hardware connection with MicroMod and with Teensy 4.1?

Article posted on the website https://www.pjrc.com/debugging-with-visual-micro/

While @KurtE has been busy with CSI we also been playing with the OV5640 5MB camera which we got from Adrafruit: https://www.adafruit.com/product/5673 for the most part it was compatible with Flexio that we used for the OV2640 but of course lib...

Was this circuit board ever built? Do you have any photos, especially any photo or video of the LEDs in use?

Ich habe es einmal mit einem IS2-USB-Code versucht, es hat funktioniert und das Audiosignal auf das iPhone übertragen. Außerdem konnte ich das Audiosignal des iPhones über die Kopfhörerbuchse des Audioshield hören. Als ich dann einen Code mit...

While @KurtE has been busy with CSI we also been playing with the OV5640 5MB camera which we got from Adrafruit: https://www.adafruit.com/product/5673 for the most part it was compatible with Flexio that we used for the OV2640 but of course lib...

While @KurtE has been busy with CSI we also been playing with the OV5640 5MB camera which we got from Adrafruit: https://www.adafruit.com/product/5673 for the most part it was compatible with Flexio that we used for the OV2640 but of course lib...

Thought I would mention, I am currently playing with trying to add CSI support for this library, as the Teensy 4.1 has enough of the CSI pins exposed for 8-bit transfers, and the control signals. I am starting off with the OV7675 camera, and I...

Here's an example on how to do SPI masters on T4 with DMA. In a non blocking way. I also did a SPI DMA Slave library, but it looks like it's the master that you want here, and then three times in parallel, so SPI0, SPI1 and SPI2 hardware that is...

I don't know. There are several things that could cause problems. E.g. can your IPhone act as usb host? If yes, then I am still not sure if my code will work with an IPhone. I used my Windows 11 notebook for testing during the develpement and at...

I think it might have more to do with the ER-TFTM101-1 display as I am using the same length wires as well. I do not have any other displays to test with...

Thought I would mention, I am currently playing with trying to add CSI support for this library, as the Teensy 4.1 has enough of the CSI pins exposed for 8-bit transfers, and the control signals. I am starting off with the OV7675 camera, and I...

Thought I would mention, I am currently playing with trying to add CSI support for this library, as the Teensy 4.1 has enough of the CSI pins exposed for 8-bit transfers, and the control signals. I am starting off with the OV7675 camera, and I...