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    reading here - since the Audio board has headers...

    reading here - since the Audio board has headers just go about : "sticking one end into the female header on the audio board and the other end into the breadboard."
    > as long as the right gauge of...
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    Always a puzzle to decide on connecting ... top...

    Always a puzzle to decide on connecting ... top or bottom ... double stack or female headers on one end ...

    This page shows the pins used for the different elements - minor diff T_3.x .vs. T_4.x...
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    Nice! Ordered.

    Nice! Ordered.
  4. Always good to test load a sketch first - simple...

    Always good to test load a sketch first - simple blink - maybe adding a simple Serial.print on blinking to see it is fully connected.

    Question: with the diode pin in 5V ... how would it get...
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    The USB code runs in the background using...

    The USB code runs in the background using software for native USB hardware - but if loop() isn't running the processor may be crashed so that isn't working either.

    Luckily the Program Button is...
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    Good link @MarkT - didn't have time to note that...

    Good link @MarkT - didn't have time to note that and find that ref.
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    Indeed that page is for the older AVR Teensy...

    Indeed that page is for the older AVR Teensy units.
  8. Yes, doing that CPU_RESTART will reset the...

    Yes, doing that CPU_RESTART will reset the processor and enter setup() with memory and state restored the same as TyCommander's GUI Reset.

    A post in recent days linked to a memory monitoring...
  9. D+- only on the top of the PCB - where the...

    D+- only on the top of the PCB - where the factory USB connector was. As noted underpads are labelled as USB Host are not of use for Device programming.
  10. On the T_4.0 there are no exposed pins/pads for...

    On the T_4.0 there are no exposed pins/pads for the Device USB. There are D+/D- pads under the USB connector - but those are wired for USB Host port on the processor and won't help in programming.
    ...
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    Sticky: The other one supports higher version numbers...

    The other one supports higher version numbers where the security req's changed AFAIK .. Macintosh OS Software (10.10 - 11.x)

    It is IDE and TD ALL-IN-ONE
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    Sticky: Was the right IDE and TeensyDuino "all in one"...

    Was the right IDE and TeensyDuino "all in one" installer used? pjrc.com/teensy/td_download.html
  13. On Nano the Device USB shares the RX0 and TX0...

    On Nano the Device USB shares the RX0 and TX0 pins - but does not provide USB Host capabilities - those are UART serial pins, noted as required in p#2 to connect Teensy as a Device for RawHID...
  14. PJRC supported upload uses the Device USB port...

    PJRC supported upload uses the Device USB port through a RawHID connection for the programming upload.

    It has been done in some fashion using the USB Host port of a T_3.6 - at least was published...
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    Good to know. Makefile not used here - just knew...

    Good to know. Makefile not used here - just knew it was there.
  16. Mike - my bad this line : storage_index = '0'; ...

    Mike - my bad this line : storage_index = '0'; instead should be : storage_index = 0;
    > as written it doesn't work on first '1' - doh :(
    >> updated prior posted sketch

    Seeing the MTP get...
  17. Can see that MSC-test isn't the updated 'STORE:'...

    Can see that MSC-test isn't the updated 'STORE:' version? It is part of the MTP LIB ... should I do a PR? Not sure if the Integrity bits are wanted or needed in there?

    In making edits the Files...
  18. Mike posted an a version of MTP_TEST I've cleaned...

    Mike posted an a version of MTP_TEST I've cleaned up a bit for integrity testing.
    > storage_index is static/global so it persists between calls to #1 and #2
    > #2 takes a drive #, but #1 does not :...
  19. In above p#537 bigFile() as written tried 25MB on...

    In above p#537 bigFile() as written tried 25MB on LittleFS PROG and fails
    > "B" results in a ZERO size file
    > file cannot be deleted with 'b'
    > 'l' still shows 0_bigfile.txt sz=0
    --> Not sure...
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    Seems right - that is a lot of work around, that...

    Seems right - that is a lot of work around, that makes sense as demo'd - but isn't needed if the static values in the code don't carry over from one .begin to the next.
  21. Not sure what this is trying to tell me?: !! Try...

    Not sure what this is trying to tell me?: !! Try installing BUILTIN SD CardaddFilesystem: 0 sdio 2000ca14


    if(cs[ii] == BUILTIN_SDCARD)
    {
    DBGSerial.printf("!! Try...
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    Or the sketch can ignore the first reading after...

    Or the sketch can ignore the first reading after the change:


    #include <FreqCount.h>

    int incr;
    bool firstRead = true;
    int myFreq = 1000000;

    void setup() {
  23. Elapsed micros is just a 32 bit unsigned integer...

    Elapsed micros is just a 32 bit unsigned integer with some operations on it involving simple math operations - so using it in an _isr will use some cycles - but not do anything unsafe and extreme.
    ...
  24. You mean that line #28 ... no I did not do that...

    You mean that line #28 ... no I did not do that before :) --- didn't even remember to 'Save' the <Edit> above before I ran to do errands ...


    Dump Storage list(8)
    store:0 storage:10001 name:sdio...
  25. I got those two and it seemed well for MTP - from...

    I got those two and it seemed well for MTP - from post #528 above:


    Using library MTP_Teensy at version 1.0.0 in folder: C:\T_Drive\tCode\libraries\MTP_Teensy
    Using library USBHost_t36 at...
  26. My first sketch was the Kurt2Files old variant -...

    My first sketch was the Kurt2Files old variant - and it failed - that goes to SD IIRC ... just back from visit in time for lunch ... will try that again.

    Argggh - ... something else ...
  27. Will keep that in mind - seems I tried something...

    Will keep that in mind - seems I tried something that and still empty.

    Will be rebuilding with new debug version soon. Changing links over for sublime to clean new IDE/TD folder slowed me down....
  28. Indeed - p#528 noted I got a working build with...

    Indeed - p#528 noted I got a working build with just those two. Failure before beta 3 was trying to assemble the various parts.

    Got the MTP update - will move over and build.


    Working in...
  29. Mike: > in that sketch flash5 defined and not...

    Mike:
    > in that sketch flash5 defined and not used
    > flash6 used but not defined
    --> seems okay changing to :: LittleFS_SPIFlash flash6;

    Looks like it just needs MTP and USBHost_t36

    ...
  30. Thx Mike! I see that propagated to Kurt's MTP...

    Thx Mike! I see that propagated to Kurt's MTP and will get to it.

    Now running TD 1.56 b3: Given the CORES update what is the set of WIP from github that is needed to get all the WIP code to work?
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    Fresh IDE 1.86 unzip to assure no leftover and...

    Fresh IDE 1.86 unzip to assure no leftover and Win install of TD 1.86 beta 3 : No issues.
    > Only Windows security note was for JAVA access for the new IDE 1.86 install to be allowed.

    Plugged in...
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    There is a makefile for Teensy 4.x in :: {local...

    There is a makefile for Teensy 4.x in :: {local install}\hardware\teensy\avr\cores\teensy4\Makefile
  33. What version of TeensyDuino? Try version 1.55 if...

    What version of TeensyDuino? Try version 1.55 if not using that or the 1.56 beta already.

    Is the Teensy showing signs of a restart after like 8 seconds?

    It may be suffering a detectable Crash...
  34. Hopefully Beta 3 delayed enough to make gathering...

    Hopefully Beta 3 delayed enough to make gathering these worthwhile:

    cores - master branch :: github.com/PaulStoffregen/cores
    SD - Juse_Use_SdFat branch :: KurtE/SD/tree/Juse_Use_SdFat
    SDFat -...
  35. On the way to get gas thought : I should try...

    On the way to get gas thought : I should try writing a file to the Teensy drives from Windows.

    All 4 T_4.0 drives ( showing 'no files' ) : All four gave Windows Chime noise but no UI

    On T_4.1 :...
  36. Mike - is the current USB_MTP_IntegrityCheck.ino...

    Mike - is the current USB_MTP_IntegrityCheck.ino posted somewhere?

    Just did 'b'ig and it took 6.9 secs to micros() rolled over and write speed it 0.3 KB/sec for 25MB where a 2MB 's'mall 2MB write...
  37. Yeah - Looked after posting and saw the for loop...

    Yeah - Looked after posting and saw the for loop over the SD - figured that was the cause ...

    That drive 'converted' to GPT was years old non-GPT drive. Then converted and formatted 'quick' with...
  38. Compiled the SAME for T_4.0 on FRDM4236 board...

    Compiled the SAME for T_4.0 on FRDM4236 board that worked for other usb to that same USB HDD/HUB with the GPT SSD was attached. It did not have an SD card in.

    Teensy goes to a fast LED BLINK??? ...
  39. Finally got the USB_MTP_IntegrityCheck.ino...

    Finally got the USB_MTP_IntegrityCheck.ino loaded. It shows the GPT SSD, did a list, wrote 'Large Index File', then seems HUNG on 'l'ist files.
    I got latest updates Win_Github indicated AFAIK ......
  40. Thanks Mike - downloaded - will try to catch up...

    Thanks Mike - downloaded - will try to catch up ...
    { After clearing my drive path - then two trees next door - power went off that hour and back - another 20 foot of tree top had blown down back...
  41. Updated Cores here - but not gotten to build...

    Updated Cores here - but not gotten to build anything yet ... gotta grab the chainsaw and clear a driveway here and one for the Nurse next door so she can get to work in the morning ... lights...
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    Great, There are other samples and snippets...

    Great, There are other samples and snippets around - that was the first I found with a post's link comment in a local sample - and it happened to be T_3.2 era ...
  43. Same results here with a quick add to open PSRAM...

    Same results here with a quick add to open PSRAM integrity sketch:


    C:\T_Drive\tCode\FS_integrate\PSRAM\functions.ino: In function 'void deleteAllDirectory(File, char*)':...
  44. from : Teensy3-6-UsbHost-MIDI-Performance-Issues...

    from : Teensy3-6-UsbHost-MIDI-Performance-Issues


    Kurt and Mike - does this ghastly ghost packet repro when Teensy not connected through a HUB?
    > Here Teensy is the device - and not USB_Host...
  45. As I looked before posting I did note in the case...

    As I looked before posting I did note in the case of the [0]&[1] hardcoding that setBuffer code was HID specific ...

    Had to ask to be sure - to much to catch up on in a few minutes - the buffer...
  46. See this table : PWM Resolution (Teensy LC, 3.0 -...

    See this table : PWM Resolution (Teensy LC, 3.0 - 3.6, 4.0, 4.1)
  47. @KurtE Glancing at recent changes ... move to...

    @KurtE

    Glancing at recent changes ... move to [4] buffers from [2]

    If the code went back to [2] buffers, does/did it work then?

    Is there a reason this is hardcoded to [0] and [1]? This is...
  48. Good news for LittleFS, and another great Frank B...

    Good news for LittleFS, and another great Frank B tool!

    Not so good the stray buffer error still present and elusive in the code.

    Is there for sure an incoming message from the host that is...
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    What version of TeensyDuino is in use? And with...

    What version of TeensyDuino is in use? And with the partners?

    There were startup fixes that will be in current TeensyDuino 1.55 or the 1.56 Beta ( currently #2 ) that may resolve the issue.
    ...
  50. Good news, TD 1.56 b2 was where it seemed this...

    Good news, TD 1.56 b2 was where it seemed this was heading.

    The output seemed slow enough that seeing IDE SerMon work would prove all else was well.
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