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Type: Posts; User: Frank B

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  1. I hope you are feeling better, Michael. I can...

    I hope you are feeling better, Michael.
    I can empathize with you a bit, a few months ago I was in the hospital for a short visit, in the stroke unit. Not nice.
    It makes you rethink your priorities....
  2. What exactly means "Not working" and what errors...

    What exactly means "Not working" and what errors do you see?
    Missing data? corrupted data? No data?
  3. No, no plans for an update. As far as I know,...

    No, no plans for an update.
    As far as I know, Michael Meissner has a working version.
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    Blackaddr, what value did you choose for RA9?

    Blackaddr, what value did you choose for RA9?
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    The focusrite is a host? Really? I thought...

    The focusrite is a host?
    Really?

    I thought it was just a usb device. All teensy 3.x or 4.x can act already as a USB audio device.
    The user Blackaddr has a made a nice guitar interface with...
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    The question is which codec. Regardless which...

    The question is which codec. Regardless which codec you choose, there will always be users who don't like it and want an other codec or whatever. Same for any other additional parts.
    A minimalistic...
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    @Paul: Would you merge a PR that adjusts Audio...

    @Paul: Would you merge a PR that adjusts Audio SAMPLE_RATE for USB-audio automatically (or at least for 48k)?

    I really need 48k (and I guess some others, too) ... for usb audio.
    If you want to...
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    A long term goal is to make everything compatible...

    A long term goal is to make everything compatible with multithreading (reentrancy etc), so far nothing was done in this regard, and I think these things would be very helpful.
    Same for preparatory...
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    I'm just a customer, too :) Yes, fixing bugs and...

    I'm just a customer, too :) Yes, fixing bugs and to contribute code@ Github is a good thing. Sometime it can takes a long time until it gets merged, so be patient (I'm not... (have many PRs unmerged)...
  10. Thread: blocked

    by Frank B
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    I think it should be somehow possible to...

    I think it should be somehow possible to write-protect the flash chip.
    But of course a write protection does not protect against desoldering and reading with other hardware.

    As Defragster...
  11. Not sure if I understand the problem. Anyway, if...

    Not sure if I understand the problem.
    Anyway, if you set the Teensy-Pins to INPUT or INPUT_DISABLE ( pinMode(pin,INPUT_DISABLE) ) or even if you use them as output and use digitalWrite(pin, LOW)...
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    First of all, I'm not an "expert" on this either...

    First of all, I'm not an "expert" on this either and I'm just sharing some things I've picked up at some point.
    Most impressive to me is that some dual core Cortex-R can do "lockstep" in a way that...
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    Hi! this was just a purely informative...

    Hi!

    this was just a purely informative question, I did not want to rate the TL072.

    I chosed a cheap Stratocaster HSS like guitar.
    I still find it very, very difficult to play the chords...
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    @Blackaddr, thank you very much for this nice...

    @Blackaddr,
    thank you very much for this nice board!
    I am thinking about building a variant of this.
    Are you still using the TL072?
    And, what kind of protection diode is on R/Linein? BAT54S?
    As...
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    I remember we had used and tested this chip when...

    I remember we had used and tested this chip when filldling withh code for the pt8211.
    Unfortunateley it is so long ago, and I don't remember any details. I searched the chip in my drawers but could...
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    Then hope that Google has not already indexed it....

    Then hope that Google has not already indexed it. Everyone worldwide can link the image as he likes. It is not a copy.
    But I remove it to do you a favor :)
    I also hope that NOBODY will do it like...
  17. Yes, the pullups are required. Check their value ...

    Yes, the pullups are required. Check their value - it should be well below 4k7.
  18. I hope not. This is incompatible to everything.

    I hope not. This is incompatible to everything.
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    Hm, you have easy swapping with any kind of...

    Hm, you have easy swapping with any kind of connector.
    M2 does not have enough pins.

    PLEASE tell us you don't have this in a child's room:

    Edit : [Picture removed] - it is here.

    Oh my.....
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    No.. nobody looks at a big file, in a forum. At...

    No.. nobody looks at a big file, in a forum. At least, i know of nobody.
    Strip it down to the minimum that shows the problem, if you want anybody to look at it..



    The "115200" for USB get...
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    No this is not supported.

    No this is not supported.
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    I guess the Hardware Serial takes the most of the...

    I guess the Hardware Serial takes the most of the time here. Which Speed do you use?

    Post a complete program, next time.
    (Forum rule)
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    Why should recursion errors last exactly 1.7...

    Why should recursion errors last exactly 1.7 seconds?
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    This is just a tip: You should really write a...

    This is just a tip:
    You should really write a new, small program that really only takes care of the mux.
    This simplifies the troubleshooting a lot. And remember to add the delays. You will see that...
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    That's a generic schematic, not useful. It does...

    That's a generic schematic, not useful. It does not even tell us wether you connected the boards to 5V or 3v3.
    Your video in post #1 has no schematic. Go and buy a multimeter...
    Is the voltage...
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    If you are not even able to measure the current...

    If you are not even able to measure the current (and show some schematics) and only make wild guesses.... sorry, that makes no sense. It does not matter much how you supply the 5V.
    It is more...
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    @Marathonman, any news?

    @Marathonman, any news?
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    Would be interesting to know *WHY* you need that....

    Would be interesting to know *WHY* you need that.
    As use of interrupts is not that easy (The forum is full of questions re: "not working" interrupt-code) and the given link to the code clearly show...
  29. A short. Maybe a blob of solder somewhere..

    A short. Maybe a blob of solder somewhere..
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    Measure the current and post the complete...

    Measure the current and post the complete schematic.
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    I edited the test slightly to be able to see...

    I edited the test slightly to be able to see which of the dots(5) calls are printed:


    void setup() {
    Serial.begin(9600);
    Serial.println("first line");
    dots(5);
    Serial.println("second...
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    No. I get this (with the usb-hub built into my...

    No.
    I get this (with the usb-hub built into my dell screen; Windows 10)


    first line
    ... (<-yes 3 dots)

    All between "first line" and the "..." is missing, also the rest of the "..." line.
  33. Yes, see Examples->Audio->Sampleplayer

    Yes, see Examples->Audio->Sampleplayer
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    It is always useful how much current is drawn....

    It is always useful how much current is drawn. You can measure this and compare it with the value printed on the card. Without knowing how much current is needed, we can only look into the crystal...
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    Use of a simple adapter cable costs 5$ and saves...

    Use of a simple adapter cable costs 5$ and saves countless hours :)
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    There were several other threads regarding this...

    There were several other threads regarding this phaenomene, the fix helped in every case. A forum search will show them.




    Volatile is a sequence point. This is required by the C- standard as...
  37. Looks like you may have luck.. these are the...

    Looks like you may have luck.. these are the parts Paul mentioned. The big IC does not get hot?
  38. OK, other parts get hot, not the main CPU. ...

    OK, other parts get hot, not the main CPU.
    @caris: Which part is hot?
  39. Would be interesting.. but how does it get hot if...

    Would be interesting.. but how does it get hot if there is a short?
  40. As far as I know halfkay always performs a full...

    As far as I know halfkay always performs a full flash erase (everything but the eeprom area). There are plans to add more of such areas, but I think that can take a a long time.. if it ever comes.
  41. Yes, a hot board is a clear indicator that it is...

    Yes, a hot board is a clear indicator that it is dead.
  42. Hi, no these are independent hardware units....

    Hi,

    no these are independent hardware units. There is no relation.

    Frank
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    I Ithink I wrote some ( a lot of ) posts about...

    I Ithink I wrote some ( a lot of ) posts about the memory boundary on T3, including the memcpy issues. It hit us several times. Maybe with some digging you can find them - including testcode.
    The...
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    Will there be a way to disable all the encryption...

    Will there be a way to disable all the encryption additions when I don't need it?
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    Are there problems with it?

    Are there problems with it?
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    ...and you can use both. If you keep your "hot"...

    ...and you can use both.
    If you keep your "hot" functions in the RAM (ITCM size is minimum 32kB anyway) it will be fast. Then, the additional 32kB (Teensy 4) instruction cache for the flash does a...
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    You could edit the linker script. Come on,...

    You could edit the linker script.


    Come on, even with 500 functions, with ctrl-c / ctrl-v it's done in a few minutes.
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    Yes, the 5102 should work, without any changes....

    Yes, the 5102 should work, without any changes.
    Teensy Audio is meant for CD Quality. So more than 16 Bit are not needed here, and if you want more you have to modify the whole library. The...
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    After some more testing, i'm quite sure it only...

    After some more testing, i'm quite sure it only happens when there is/was a powerloss during a write.
    In that case the internal wear leveling does not work anymore - of course, because it is in an...
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    The pedal seems to be quite good, pretty robust....

    The pedal seems to be quite good, pretty robust.

    Not sure what I will do with it.. my initial Idea was to use a Teensy 3.2 (has a PGA) to create e-guitar effects.
    In the meantime I lost Interest...
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