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Type: Posts; User: pmartin

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  1. Replies
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    Teensy products end of life?

    Hi guys,
    I'd like to develop my own pcb product based on Teensy board. I was wondering what is the end of life of Teensy 3.2 o later.

    Thanks in advance.
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    Teensy 3.2 DAC speedup

    Hi guys,
    i'm working with Teensy 3.2
    I have used ADC Library for data collecting with DMA ring buffer.
    I'm evaluating DAC qualitative speed on pin A14.
    I get a sin wave (generated externally with...
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    ADC Library with Teensy 3.2

    Hi,
    working on Teensy 3.2
    I use ADC library in order to sample A2 pin analog input.
    I now use a function readADC() in loop() in order to read a single input. Every time the sample count reaches...
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    Thanks! It seems to work: max and min are...

    Thanks!
    It seems to work:

    max and min are float, so:

    to output the correct float value:

    analogWrite(A14,(unit16_t)(4095.0*(value - min)/(max - min)))

    Best Regards,
  5. Replies
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    3,365

    Teensy 3.2 DAC output voltage

    Hi,
    I have an array of float values that i must output to the Teensy 3.2 board built-in DAC (pin A14).
    I have setup analogWriteResolution(12) (so 4096 possible values). I'd like to normalize the...
  6. Hi, in your opinion, is possible to do the same...

    Hi,
    in your opinion, is possible to do the same in Teensy 3.2?

    Best regards
    pmartin
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    ahhhhhh what a stupid error!!!!!... i didn't see...

    ahhhhhh what a stupid error!!!!!... i didn't see it.

    Thank you so much and sorry for your wasted time
    Best Regards
    pmartin
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    the definition of "buffer" is in the code posted:...

    the definition of "buffer" is in the code posted:

    if(queue1.available() == 32){ // se sono pronti RX_NUM campioni nella coda
    int16_t buffer[32];
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    857

    Teensy 3.2 arm_rfft_init_q15 crash?

    Hi,
    I have some trouble initializing arm_rfft_instance_q15 with function arm_rfft_init_q15.
    I'm working with Teensy 3.2.
    Sw environment is Audio Library (to read from ADC (pin A2) with...
  10. Ok, I re-project the circuit, having as output...

    Ok, I re-project the circuit, having as output voltage-goal on Analog Input pin a signal in my range.
  11. Ok, i must use the RC circuit as shown in...

    Ok, i must use the RC circuit as shown in AudioInputAnalog documentation.
  12. Thank you so much for your support, but it does't...

    Thank you so much for your support, but it does't seem to be a solution.
    I checked my signal, it's range is from 520mV to 2,68V, so i'm trying to rescale the *buffer entries.


    Best Regards....
  13. Getting ADC input with Audio Library in Teensy 3.2

    Hi everybody,
    I'm a newbie with Audio Library and just few moments ago registered in this forum.

    I'm trying to read ADC input on Teensy 3.2 Board (pin A2).
    I use a queue from Audio Library and...
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