Search results

  1. D

    Yet another Teensy Loader RPI3 Question thread....

    Please delete if this doesn't match the appropriate standard for a question.... I work in a company with some real PITA IT folks that do not really help the engineers out as much as we would like at times... I am looking at having a RPI 3 at my desk to develop Python GUI stuff as well as a...
  2. D

    Audio Library

    Ooops I attached this to some powered CPU speakers.... I hope its still good :-(
  3. D

    Audio Library

    The audio jack is it the output?
  4. D

    Audio For Teensy3 - What Features Would You Want?

    With Teensy 3.1 it almost seems that an external board isn't needed anymore!
  5. D

    Audio For Teensy3 - What Features Would You Want?

    I hope this project is coming along :-) !!!
  6. D

    For those (like myself) that would like to learn Embedded C- UTAustin Edx!

    I value that opinion and I have taken some measures to start down that path....
  7. D

    For those (like myself) that would like to learn Embedded C- UTAustin Edx!

    https://www.edx.org/course/utaustin/ut-6-01x/embedded-systems-shape-world/1172 I am signed up and I cannot wait to learn. Then I cannot wait to mess around with the Teensy 3.0 even further with that audio setup! Its going to be a busy year coming up!
  8. D

    Intel Galileo

    That TI board looks sharp :-)
  9. D

    FLAC player with Teensy 3.0 - Noob question

    I have heard that there is development of the PERFECT solution as we speak.... Patience might pay out in spades if you can wait for Pauls Audio board!
  10. D

    Audio For Teensy3 - What Features Would You Want?

    Is this the same as setting up a LUT for the given wave?(F(x))*
  11. D

    analogRead() is not interrupt safe ?

    So for example if I wanted to view a signal and look at say for instance frequency components I could use this divisor and create x arrays to hold samples and on the overlap I could place values for that given array at that time sample... or are you saying that you enable those samples off the...
  12. D

    Teensy 3.0 IntervalTimer interrupts

    Yep that should work and if you wanted to 1/2 that you could do 1/2 that timer I am assuming const int ledPin = 13; // Teensy3 has LED on 13 volatile unsigned long smplidx = 0; int Counter = 0; IntervalTimer smpltimer; void setup(){ pinMode(ledPin, OUTPUT); Serial.begin(115200)...
  13. D

    Teensy 3.0 IntervalTimer interrupts

    Negative ghost rider.... (as far as I can tell.....) CODE: void smpltimerisr(void); const int ledPin = 13; // Teensy3 has LED on 13 volatile unsigned long smplidx = 0; IntervalTimer smpltimer; void setup(){ pinMode(ledPin, OUTPUT); smplidx = 0; smpltimer.begin(smpltimerisr, 1000000); } void...
  14. D

    analogRead() is not interrupt safe ?

    Ok so I can better understand this is referring to this portion of the code when you are accessing analog read: void emg_callback(void) { uint8_t next_head = (head + 1) % BUFSIZE; if (next_head != tail) { /* there is room */ emg1_buffer[head]=analogRead(EMG_PIN_1)...
  15. D

    Teensy 3.0 IntervalTimer interrupts

    void smpltimerisr(void); const int ledPin = 13; // Teensy3 has LED on 13 volatile unsigned long smplidx = 0; IntervalTimer smpltimer; void setup(){ pinMode(ledPin, OUTPUT); smplidx = 0; smpltimer.begin(smpltimerisr, 1000000); } void loop(){ if(smplidx == 0) digitalWrite(ledPin, HIGH); else...
  16. D

    analogRead() is not interrupt safe ?

    Isn't this because analog read uses an Interrupt?
  17. D

    DSP Course Using Teensy 3.0

    I am excited!! I will see what I can do about getting this course setup as open source and free for public :-P I have some basic concern with these area's I am not quite sure about how they can be implemented and this is why I wanted to tap into the greatness that is PJRC forums! Concepts of...
  18. D

    $100 3D Printer/Scanner

    Wow! 10chars
  19. D

    DSP Course Using Teensy 3.0

    Some of the reasons of why I am bringing this up now is due to the development of an audio board via Paul :-)
  20. D

    DSP Course Using Teensy 3.0

    As many of you know there are an abundant amount of open course ware from many universities over many topics. MIT and I think Cornell(??) exceed in this area. And I have found this very valuable resource http://www.dspguide.com/pdfbook.htm as a great book for an open course in DSP. One idea I...
  21. D

    Audio For Teensy3 - What Features Would You Want?

    Personally I feel it would be great to be able to implement most of these DSP algorithms from this free ebook on DSP. http://www.dspguide.com/pdfbook.htm I love this book BTW :-) Actually I think I will make this another post......
  22. D

    Amateur radio repeater voltage monitor

    I just didnt see them is all I have no issues with anyone using the code Paul created I just thought I noticed something off (because I didnt see the relations to arduino.h) I like what you have done! Keep up the great work :-)
  23. D

    Amateur radio repeater voltage monitor

    This is amazing you also are not using the AVR port are you? Also are you using the arduino.h?
  24. D

    Tutorial Request -Makefile , Non-Arduino Library/IDE programming...

    Our university is about to place an order for 10 of your units! Thanks for making a great product and I hope in the future that you get a chance to do a step by step makefile pure C code non arduino library tutorial. Even pointers on how to go about doing this with some simple steps would be...
  25. D

    The battle between Teensy 3 vs MBED Freescale Freedom - who will win?

    This is awesome Paul I just want to say that this is an amazing platform and that beyond that the support is just amazing!!! -- Anything that I'm asking for is just me being needed as you have literally everything (mostly) of what people would want..... I guess I would just love to see a small...
  26. D

    Teensy 3.0 Memsic 2125 Dual Axis Accelerometer ?

    Thank you for the reply it seemed to not function. This could be the unit to be honest though.
  27. D

    Teensy 3.0 Memsic 2125 Dual Axis Accelerometer ?

    Teensy 3.0 Memsic 2125 Dual Axis Accelerometer ? We are using the basic code and getting returns of 0 every-time.... http://forum.arduino.cc/index.php?topic=70930.0 Using the code like this guy.... this is using pulsein(..... Is there an issue for this port for the teensy 3 (interrupt issue?)
  28. D

    Teensy 3.0 Memsic 2125 Dual Axis Accelerometer ?

    Sorry I will move this to tech support...
  29. D

    Teensy 3.0 Memsic 2125 Dual Axis Accelerometer ?

    We are using the basic code and getting returns of 0 every-time.... http://forum.arduino.cc/index.php?topic=70930.0 Using the code like this guy....
  30. D

    The battle between Teensy 3 vs MBED Freescale Freedom - who will win?

    If I where to go into industry I wouldn't imagine that I would be dealing with Nicely Built Library's and IDE's that are as simple on the eyes.... The winavr feel seems like the tract that would be something that would be taught in an Embedded Systems course. I might just be way off here but...
  31. D

    The battle between Teensy 3 vs MBED Freescale Freedom - who will win?

    That would enable a classroom to learn embedded systems C programming with your product. I would be so great full but in all honestly I am great full for what has been developed thus far!
  32. D

    The battle between Teensy 3 vs MBED Freescale Freedom - who will win?

    I would love to see a clear path that explains programming in C with the Teensy. If that video where to be made or if that online tutorial where to be made for those that might not have every programmed in C and have only really used some IDE like arduino this would be a blessing. I for one love...
  33. D

    Better alternative to arduino IDE ?

    Are you programming in C at the bit register level?
  34. D

    Better alternative to arduino IDE ?

    I would also be interested in this!
  35. D

    Hello all new teensy 3.0 owner!

    "The Teensy 3.0 comes pre-flashed with a bootloader so you can program it using the on-board USB connection: No external programmer needed! You can program for the Teensy in your favorite program editor using C" So how would I begin to program this with my favorite program editor in C? Is this...
  36. D

    Hello all new teensy 3.0 owner!

    Basically we wanted to use your MCU dev board and use a language that would possibly impress employers... no offense to Arduino's amazing setup but its hard to impress the engineering manager that you can do so much with an MCU when its an Arduino.... Perhaps I'm looking at this the wrong way...
  37. D

    Hello all new teensy 3.0 owner!

    I have 2 teensy's in the mail from the main site. Thank you for creating something amazing I will recommend it over most here at the engineering college in Texas. I do have a question for you old schoolers and those well versed in C. I want to program the MCU in a non-arduino IDE using C so...
Back
Top