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  1. PGM - absolutely right . it was a poor decision...

    PGM - absolutely right . it was a poor decision led by the desire to keep the design minimal , one button to upload new programs . could this lead to the observed errors?

    single USB - there are 3...
  2. so unfortunately there has been again problems...

    so unfortunately there has been again problems with this apparatus .
    i'm not sure what caused the problem in the beginning so i will describe it generally - but i will gladly add details.

    1. i...
  3. alright , i did it and i think some errors have...

    alright , i did it and i think some errors have been resolved .:o

    about the blinks ; i figured the spare teensy (U3) was the source of it , since it was activated by the shared voltage source and...
  4. since the teensy is already soldered to the PCB ,...

    since the teensy is already soldered to the PCB , is there a way to disable the 3v3 pins by writing a program ?
  5. currently things are working . i didn't really...

    currently things are working . i didn't really figure out what happened earlier but i suppose it might've been some GND issue cause since i connected the rest of the wiring it works fine.
    one thing...
  6. yes i don't think the problem is with the reset...

    yes i don't think the problem is with the reset pin since only U1 is reseting and also the button seems to work just fine .
    any other ideas ?
    is there anyting wrong with connecting the voltage...
  7. integrating multiple teensy's with a printed circuit , weird synchronization occurs

    i designed a PCB to hold a teensy project for a lab i work in .

    there are three teensy's in total which share a few signals , meaning , some of the wires that go to one teensy also go to the...
  8. so i actually had the line : ...

    so i actually had the line :

    Serial.begin(9600);while(!Serial);
    in my code , so i changed it as MichaelMeissner suggested :

    Serial.begin(9600);
    // wait up to 3 seconds for the Serial...
  9. any potential errors when powering teensy without computer?

    a bit funny to admit but i just randomly discovered it's possible to operate teensy after uploading a program with just a simple USB adapter connected to wall power .
    i had a program running and...
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    as for the analog ground and analog power...

    as for the analog ground and analog power (VDDA,VSSA), should they concern me in any way ?

    i would appreciate a short explanation of their roles .

    the rest - i feel like i know what to do ,...
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    got it ! but did you mean Vadc? choosing the...

    got it ! but did you mean Vadc?

    choosing the reference at 3.3v is the highest option for T3.6 ? or can i change it to 5v or even higher ?
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    i will look into the link ! could you explain...

    i will look into the link !
    could you explain what is the ADC reference and when should i use it?
    also about analog ground , which is related in a way i can wrap my head around ...
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    trying again (: i'm getting lost in the...

    trying again (:
    i'm getting lost in the reference manual and other threads so i'll try to explain my goal and maybe someone could specify the steps i should perform -
    i have a sensor that sends an...
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    analog input for T3.6

    hi
    from the pjrc website it is not clear - in the case of T3.6 , the analog input reads the range of 0-3.3V ? in that case what is the meaning of a negative voltage ?

    bottom line is that i want...
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    great ! now i see the pins A21 and A22 , with...

    great !
    now i see the pins A21 and A22 , with the DAC0 and DAC1 sign .
    so now simply following the instructions on this link https://www.pjrc.com/teensy/teensy31.html ( and changing the pin to...
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    the link you put shows exactly what i want , but...

    the link you put shows exactly what i want , but it is a feature of T3.2 and i am talking about T3.6 . is it the same for the 3.6 version ?

    i got a bit confused , you say i'm right but show me...
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    not sure how to use DAC ( not PWM ) T3.6

    hello
    from my understanding , analogwrite() is using PWM pins so it's an analog emulator . i also found guidelines for using low pass filter that will turn the PWM signal to an actuall analog -...
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    Yes, my first choice was falling but I tried also...

    Yes, my first choice was falling but I tried also rising and change, just as a guess maybe it would improve, but the best option is still falling.
    (so I changed it back to falling)
    About the...
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    another idea i had in mind is switching to T3.6...

    another idea i had in mind is switching to T3.6 instead of T3.5 .
    is the performance difference between them great enough to solve my latency issue ?
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    going back to handling attachInterrupt() it...

    going back to handling attachInterrupt()
    it improved the performance by some amount , but still having hard times with the latency .
    i got lost with all the inquires about reducing latency in the...
  21. yes i tried a different approach and it is...

    yes i tried a different approach and it is resolved .
    i reduced the speed of the output command because it is not that important , and then print just after every output .
    thanks!
  22. T3.5 - testing results without using Serial.print on the spot

    i want to examine output from teensy before connecting it to the main apparatus .
    the output is being drawn from a sFIFO and sent to port D every 30 mcsec via timer function.
    until now i used...
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    i'm trying to go further with what i understand...

    i'm trying to go further with what i understand but maybe someone can point out what is wrong .
    i want to test my results and because Serial.print is expensive timewise , i am trying to assign the...
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    i am trying this attachInterrupt() and in order...

    i am trying this attachInterrupt() and in order to check the outcome i want to put all the "dequeued" bytes in some array so i can later examine it (instead of using Serial.print while inside the...
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    well my thread is not popular for some reason ,...

    well my thread is not popular for some reason , maybe someone could advise me what is it missing ? ( i added the code , tried to be clear and to speak shortly ,etc...)

    anyway i'll rephrase
    i...
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    using fifo or simple fifo

    hello
    trying to fix something from an old project:
    i get inputs , 1 byte at a time at a changing pace .
    i need to send them elsewhere at a slower pace , first in first out .

    until now i used...
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    so i added an if loop that exits the case 1...

    so i added an if loop that exits the case 1 option if isMarkerOn is on . it turned out to be helpful , i guess the problem was that before the bit was turned low it already was assigned a new value .
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    signal drops and rises back

    hello all (: !
    i need help troubleshooting -
    in my project i receive a signal for a certain duration , and in return i need to turn another signal high for the same duration (around ~5...
  29. Thread: teensy dead ?!

    by gony
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    OK ! i guess it wasn't the problem cause i just...

    OK !
    i guess it wasn't the problem cause i just did it again and this time it worked . also i tried connecting both teensies and it worked . so i'm happy and pleased and i must catch a bus home. ...
  30. Thread: teensy dead ?!

    by gony
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    i have an idea for what might went wrong . when i...

    i have an idea for what might went wrong . when i click integrate with arduino , i need to locate the folder in which arduino is . so i browse to computer-> c -> program files -> arduino .
    but...
  31. Thread: teensy dead ?!

    by gony
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    ok! i did the restore thing and repeated...

    ok! i did the restore thing and repeated everything and now i have a blink !

    now , does this mean the reason for the whole drama was TyCommander ? should i install it differently or integrate it...
  32. Thread: teensy dead ?!

    by gony
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    what do you mean - "now you can program the led...

    what do you mean - "now you can program the led blink using teensy loader" ?

    i have teensy loader open ,not on auto mode , uploaded the slow blink hex file

    i have arduino opened and slow...
  33. Thread: teensy dead ?!

    by gony
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    i opened teensy loader maunally and opened the...

    i opened teensy loader maunally and opened the blink_slow_teensy36.hex file . than pressed the button for 15 seconds (timed it) and got no blink on the built in led . there is a small change that the...
  34. Thread: teensy dead ?!

    by gony
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    i click verify and teensy loader doesn't appear ,...

    i click verify and teensy loader doesn't appear , perhaps its because i modified the computer to work with TyCommander ?


    also , i notice on the arduino window , there is no COM (teensy) . still...
  35. Thread: teensy dead ?!

    by gony
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    i understand . i apologize for asking such vague...

    i understand . i apologize for asking such vague questions . it comes from very poor knowledge in the computer field and also poor english skill .

    the program that i ran last on this teensy was a...
  36. Thread: teensy dead ?!

    by gony
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    no chance it was caused by the installation and ...

    no chance it was caused by the installation and integration with TyCommander?
  37. Thread: teensy dead ?!

    by gony
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    after i tried to long press it as you said , i...

    after i tried to long press it as you said , i received a notification :
    one of the devices has malfunctioned . USB not recognized .

    any clues so far ?
  38. Thread: teensy dead ?!

    by gony
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    i'm not sure what further informtaion your...

    i'm not sure what further informtaion your talking about -
    i can say its not a programming issue because the teensy ran the program few times before .
    about wiring , there's not much , i just...
  39. Thread: teensy dead ?!

    by gony
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    teensy dead ?!

    hello , i'm having a lot of troubles lately ...
    this time , my T3.5 is not working . it was working in the past 3 weeks since i started programming with it and yesterday i tried for the first time...
  40. i tried to do as you say but it didn't work . to...

    i tried to do as you say but it didn't work .
    to make sure i understood your instructions , here's what i did :

    beginning - everything is closed/disconnected (arduino program , teensy.exe ,...
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    trouble using Serial.parseInt

    hello !
    i have some issue using Serial.parseInt . i tried to track the problem myself and noticed that if i write a simple code that has Serial.parseInt in it than everything works fine . problem...
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    trying again maybe someone can help?

    trying again maybe someone can help?
  43. ok so i think thats a little over the top :D i...

    ok so i think thats a little over the top :D
    i understand what you said about tycmd , i might use it when i assemble the apparatus and come across some errors ...
    but in general , just activating...
  44. question regarding use of multiple teensy simultaneously

    hello !
    for my project i decided to use two teensy boards at the same time on one computer.
    what i do is receive lots of fast paced inputs and react accordingly with some actions and some outputs...
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    ok so i think i solved it , for some reason the...

    ok so i think i solved it , for some reason the simpleFIFO.h library disappeared from my cumputer so i redownloaded it and now its fine (:
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    error compiling for teensy 3.5

    hello
    i am receiving an error message as follows :
    Error compiling for board Teensy 3.5.

    i checked my tools > board and it is teensy 3.5 like it should be

    i suspect it has got to do with
    ...
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    i started experimenting with Serial.read and got...

    i started experimenting with Serial.read and got results , but when i tried Serial.parseInt iv'e got this error message :
    Error while setting serial port parameters: 9,600 N 8 1

    i got this...
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    haha yes! some clarification : i don't want the...

    haha yes!
    some clarification : i don't want the button to simulate the value 4 in port B , because (lets call it auto mode) in auto mode in addition to the value 4 , there is a value in port C...
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    not really . i understand the general lines but...

    not really . i understand the general lines but not actual actions i should take .
    your saying i can somehow create a command that will go through the serial monitor ?

    maybe you can explain in...
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    i'll start from the beginning - its a project...

    i'll start from the beginning -
    its a project for an experimental lab . i have inputs coming from the experiment computer to the teensy , than all sorts of things happen ( according to what was the...
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