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  1. Replies
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    Frank, is on the T4 the ribbon pointing forward...

    Frank,
    is on the T4 the ribbon pointing forward or backward?
    IOW, it fat cable is inserted, does it goes towards the USB connector or towards the botton?
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    maybe something like RD#, TD# ?

    maybe something like RD#, TD# ?
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    Q: Vin 3.5 to 5.2 Volts: So a power supply of 6V...

    Q: Vin 3.5 to 5.2 Volts: So a power supply of 6V does not work? (was using it for T3.6)
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    you could use SAI instead (this is as it also...

    you could use SAI instead (this is as it also called in NXP document)
    but dropping SAI as with actual card should be OK
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    Maybe this should be changed in post #4 as...

    Maybe this should be changed in post #4 as USBHost ehci does not work (hangs) for data transfer with buffers >=16k
    PR issued
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    Did you check USBHost to HDD with...

    Did you check USBHost to HDD with buffersize>=16k?
    AFAICS, the PR concerning the 16k buffer issue has not been merged in USBHost_t36
    (did not apply yet 1.47b4)
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    if there is a match, then there is a good answer

    if there is a match, then there is a good answer
  8. Thread: Bat detector

    by WMXZ
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    simply copy tm2seconds to sketch, or use stock...

    simply copy tm2seconds to sketch, or use stock time conversions
    I created tm2seconds because I did not like the arduino time library, but your mileage may vary.
  9. Thread: Bat detector

    by WMXZ
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    FRESULT is specific to uSDFS If you do bot use...

    FRESULT is specific to uSDFS
    If you do bot use uSDFS then you should also remove also all definitions in the main sketch.
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    may this be connected with the 16384 Byte limit...

    may this be connected with the 16384 Byte limit in aueue_Data_Transfer in ehci.cpp?
    (I know you said 8192 but i know FS is sending lager blocks (I recall a transfer of 64*512))
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    Removed all RTC code as this is now done with TD...

    Removed all RTC code as this is now done with TD (I assume also for T3.x)
    Also the access to sd_config.h is removed
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    Must still clean up the "_FS.ino" examples...

    Must still clean up the "_FS.ino" examples (sorry)
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    MSC on T4 with latest TD? Does someone from the...

    MSC on T4 with latest TD?
    Does someone from the MSC thread have MSC running with latest TD update?
    In my case my program logger_RawWrite stops when writing the first data buffer (64 blocks)
    I use...
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    Update: modified uSDFS to handle RTC also for T4

    Update:
    modified uSDFS to handle RTC also for T4
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    Will have a look

    Will have a look
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    Assuming there will be no kickstarter for the T4,...

    Assuming there will be no kickstarter for the T4, the question to PJRC (I mean Robin) is if you accept pre-release orders (don't care about final price)?
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    Not sure if Bill ported the T4 specific uSDHC...

    Not sure if Bill ported the T4 specific uSDHC code (for build-in uSD card) to his library (the "SdFat-beta/src/SdCard/SdioTeensy.cpp" only handles Teemsy3.5 3.6)
    So only SPI may be working
    Bill...
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    If you look up the code, you will see that rename...

    If you look up the code, you will see that rename (aka move) is not implemented.
  19. Maybe you try with the classic void setup()...

    Maybe you try with the classic


    void setup()
    {
    while(millis()<1000);
    Serial6.begin(31250);
    }
    to slow down (hold) setup() for some time before calling Serial6.begin
    All others have...
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    I realized that having the VolToPart in...

    I realized that having the VolToPart in sd_config.h could result in multiple declaration, so I moved it to uSDFS.h, which is only called by main thread.
    This way it can be changed without need to...
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    Is one possibility my reasoning was, that...

    Is one possibility
    my reasoning was, that sd_config.h would be edited to say which interface one is using (spi,sdio,usb) where one could also have 2 or more spi devices
    Also sd_config should be...
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    That could easily be tested, by moving int a[2] =...

    That could easily be tested, by moving int a[2] = {10, 20}; outside setup() or by making the array static "static int a[2] = {10, 20}; "
  23. Can also be an INPUT as in OP

    Can also be an INPUT as in OP
  24. First, you need to allocate some audio buffers...

    First,
    you need to allocate some audio buffers (in setup)

    eg

    AudioMemory(8);


    the number you put here depends on the complexity of your code
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    Added PARTITION VolToPart to sd_config.h

    Added PARTITION VolToPart to sd_config.h
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    So far only USB-Serial is implemented for T4,...

    So far only USB-Serial is implemented for T4, but Paul indicated, as soon he has reached a god point in HW devel....
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    Merged, pushed version to 1.1.1 and will update...

    Merged, pushed version to 1.1.1 and will update readme
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    Taking about USB host signals, do the T4 also...

    Taking about USB host signals, do the T4 also have pads to provide USB Device signals (as T3.x) ?
    Another Q: Is the SDIO oriented forward ot backward?
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    That is really great. please make a PR if you...

    That is really great.
    please make a PR if you are happy with testing.
    Walter
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    Good evening @KurtE, @mjs513, @defragster and ......

    Good evening @KurtE, @mjs513, @defragster and ...

    Agree, but have to take me a little bit back, to deliver for day job commitments (less fun, but nevertheless important)

    concerning this thread,...
  31. Thread: Serial or Seremu

    by WMXZ
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    Serial or Seremu

    This is question to USB exerts (especially @Paul)
    I'm playing with MTP and got the experimental MTP running T3.5/6 with PC-Win10
    but I realized that Paul implemted usb_desc differently than @hubbe...
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    Any link to a GPT? (I only realized that my Win10...

    Any link to a GPT? (I only realized that my Win10 does not format exFAT with MBR) So I could detect that, but with FAT32?
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    I will then comment it out also After all this...

    I will then comment it out also

    After all this disk jockeying, would it be possible to get a summary of which situation is NOT working? (it seems most situation ARE working)
    (I'm somewhat lost,...
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    Yes, the possible usage (e.g. multiple disk on...

    Yes, the possible usage (e.g. multiple disk on USB hub) may need more careful thinking
    Question: Is the file system capable of handling multiple disks (i.e. not using global variables)?
    for uSDFS...
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    Concerning Multiple partition, IFAIK these must...

    Concerning Multiple partition, IFAIK these must also be enabled inside ffconf.h (part of uSDFS)
    maybe
    #define FF_MULTI_PARTITION 1 (line 184 or so)
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    NO, the teensy are made such that all foreseen...

    NO, the teensy are made such that all foreseen functionality is available without HW mods.
    what I mean is that your VREF generation must tace of the existing connection to VDD. Not really sure, if...
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    concerning external VREF if you look into...

    concerning external VREF
    if you look into schematic https://www.pjrc.com/teensy/schematic.html you will see that VREF is already connected to 3.3V. So, by program VREF to use 'external' puts it to...
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    the '8' seen in the T3.5 data where indeed the...

    the '8' seen in the T3.5 data where indeed the 4th bit, and it was indeed HW, but a contact issue of the sd card holder and not the T3.x board or the processor.
    (It was a fresh T3.5 never used since...
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    SDHC has it own DMA (which according to Bill...

    SDHC has it own DMA (which according to Bill Greiman is not working ?)
    The original (non T4) version is also using internal DMA,
    continue to look into
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    First observations: Using CardInfo start of...

    First observations:

    Using CardInfo
    start of program and first sector with T3.5 reads


    Initializing SD card...Wiring is correct and a card is present.

    Card type: SDHC
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    OK, I tried Cardinfo.ino with T3.6 and SD...

    OK,
    I tried Cardinfo.ino with T3.6 and SD library (I was working with) it worked.
    T3.5 failed:

    Will investigate
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    @defragster, what is the suggested solution? I...

    @defragster, what is the suggested solution?
    I remember myself that once or twice, when I plugged in a teensy (3.6?), it automatically reprogrammed.
    May it be that the initial speed negotiation...
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    But without any statistical significance (sample...

    But without any statistical significance (sample size 1)
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    the QUIT code is in GitHub code ...

    the QUIT code is in GitHub code

    logger_RawWrite_FS.ino is rather new and should stimulate testing the different FS used with Teensy
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    Could not deduce that from OP

    Could not deduce that from OP
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    Would add: check also all pin connections for...

    Would add: check also all pin connections for hair bridges
  47. Thread: Emmc

    by WMXZ
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    correct the max value should be used for...

    correct
    the max value should be used for estimating the minimum Teensy buffer size required for (drop-free) RealTime logging
  48. Thread: Emmc

    by WMXZ
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    So concern is the mechanical connection of uSD...

    So concern is the mechanical connection of uSD card holders? If so, consider soldering directly some wires between T3.6 uSD Card holder and standard uSD Adapter. You cab easily fix the uSD Card in...
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    For completeness, see also my post...

    For completeness, see also my post https://forum.pjrc.com/threads/55821-USBHost_t36-USB-Mass-Storage-Driver-Experiments?p=205971&viewfull=1#post205971 for syncing T$ with PC
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    The examples\ logger_RawWrite_FS has routines...

    The examples\ logger_RawWrite_FS has routines that allow rtc_sync with "__rtc_localtime" symbol that must be added to build command

    PS: will be on the road for a couple of days
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