Latest activity

  • defragster
    Updated Todo: * Add the missing AD_B1_XX pins * Top left of the board in the spreadsheet image in this thread, there are many GND pins. I will replace a few of them with 5V pins. * 4.5 already has USB Host and USB-PD (Power Delivery) on that...
  • defragster
    Perhaps write a simple sketch to control some digitalOutput pins in loop to trigger ISR()'s on the desired pins and see if the ISR() code gets called when done manually by pin #? In same interrupt.c file is this code that gets the common...
  • T
    These (the Color: 6Pin black CC1 2 variety) have the resistors already mounted, you would just have to wire/solder leads to D-. D+, Vusb and GND on the Teensy 4.0.
  • K
    I updated the code with the added pinMode call. I also added code to interface the adafruit clock generator board with it. I verified the clock generator board produces the 8.192MHz signal I need with an oscilloscope and connected that output to...
  • BriComp
    These (the Color: 6Pin black CC1 2 variety) have the resistors already mounted, you would just have to wire/solder leads to D-. D+, Vusb and GND on the Teensy 4.0.
  • wwatson
    wwatson reacted to KurtE's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    I thought of responding with :eek:but it was not in the list :LOL: 2 2x20 connectors or the like, might be challenging to you both routing and also if you do shields being able to uplug them... But there are some boards like the Mega family...
  • T
    Thank you...my brain is melting...I can't figure out something so simple...it's all so incredibly complicated. I'm also worried if I roll my own connector with the link you shared, would it be safe for consumers? I'm not an EE...hence my desire...
  • T
    Thank you for the reminder - I tried the cables I have both ways, but they didn't work. If I buy new cables, what do I specifically look for? It's not like they advertise "we install the 5.1k resistors on both sides." Thanks, Mike
  • T
    I think it's unlikely, see below:
  • T
    Have you tried the cable in each possible orientation, at both ends? I'm wondering if they've messed up and only put one resistor inside that USB-C socket. (The only other possibility is they didn't put in any resistors at all... or they've tied...
  • BriComp
    BriComp reacted to KurtE's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    I thought of responding with :eek:but it was not in the list :LOL: 2 2x20 connectors or the like, might be challenging to you both routing and also if you do shields being able to uplug them... But there are some boards like the Mega family...
  • W
    Not on my T4.1. Commented or not, analogRead(22) provides the expected values.
  • BriComp
    I think it's unlikely, see below:
  • mjs513
    mjs513 reacted to KurtE's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    I thought of responding with :eek:but it was not in the list :LOL: 2 2x20 connectors or the like, might be challenging to you both routing and also if you do shields being able to uplug them... But there are some boards like the Mega family...
  • KurtE
    I thought of responding with :eek:but it was not in the list :LOL: 2 2x20 connectors or the like, might be challenging to you both routing and also if you do shields being able to uplug them... But there are some boards like the Mega family...
  • J
    Have you tried the cable in each possible orientation, at both ends? I'm wondering if they've messed up and only put one resistor inside that USB-C socket. (The only other possibility is they didn't put in any resistors at all... or they've tied...
  • wwatson
    wwatson reacted to Dogbone06's post in the thread Call to arms | Teensy + SDRAM = true with Angry Angry.
    Updated Todo: * Add the missing AD_B1_XX pins * Top left of the board in the spreadsheet image in this thread, there are many GND pins. I will replace a few of them with 5V pins. * 4.5 already has USB Host and USB-PD (Power Delivery) on that...
  • KurtE
    KurtE reacted to Dogbone06's post in the thread Call to arms | Teensy + SDRAM = true with Angry Angry.
    Updated Todo: * Add the missing AD_B1_XX pins * Top left of the board in the spreadsheet image in this thread, there are many GND pins. I will replace a few of them with 5V pins. * 4.5 already has USB Host and USB-PD (Power Delivery) on that...
  • mjs513
    mjs513 reacted to Dogbone06's post in the thread Call to arms | Teensy + SDRAM = true with Angry Angry.
    Updated Todo: * Add the missing AD_B1_XX pins * Top left of the board in the spreadsheet image in this thread, there are many GND pins. I will replace a few of them with 5V pins. * 4.5 already has USB Host and USB-PD (Power Delivery) on that...
  • D
    Updated Todo: * Add the missing AD_B1_XX pins * Top left of the board in the spreadsheet image in this thread, there are many GND pins. I will replace a few of them with 5V pins. * 4.5 already has USB Host and USB-PD (Power Delivery) on that...
  • D
    Dogbone06 reacted to jmarsh's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    I'd like to see B0_13 in its natural place (between B0_12 and B0_14) instead of relocated to the bottom, it can be a trap if you're absent-mindedly plugging in a bunch of wires without paying complete attention.
  • D
    Wasn't seeing an issue - just a note ... from prior posts some will make boards and some plug wire arrays. Even an ideal total rework couldn't make it 'perfect' for all given potential uses and MEGA class pin count. And any rework has risk.
  • D
    Dogbone06 reacted to mjs513's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
    Not sure what the issue is - to be honest I been bringing out the 5V pin to edge connectors on my T4.x and T3x breakouts without an issue as well as other boards I have done. Just have to be careful with the wiring and check the traces before...
  • T
    Thank you so much! I will check out this solution and post back. If anyone has any other ideas I’m all ears. Thank you again! Mike EDIT: OK checked it out; just wondering if there's any commercially available cables for this? While I can...
  • T
    @luni made a USB C adaptor for teensy complete with the required resistors, here it is. Alternatively you could use something like this, though you will have to supply your own resistors. Both the above solutions would then just need a bog...
  • BriComp
    @luni made a USB C adaptor for teensy complete with the required resistors, here it is. Alternatively you could use something like this, though you will have to supply your own resistors. Both the above solutions would then just need a bog...
  • M
    I am not using the encoder library, I wrote own code for the encoders this is the ISR. static void updateEncoderState(RotaryEncoder *encObj) { encObj->currentStateA = digitalRead(encObj->pinA); encObj->currentStateB =...
  • T
    Hi, I'm still struggling with this. I had some custom internal short connectors made, USB-C to USB-uB, and still no joy. These are the second round from the manufacturer, and they are supposed to transfer data and power, and supposedly have...
    • IMG_0525.jpeg
    • IMG_0527.jpeg
    • IMG_0526.jpeg
  • KurtE
    Are you sure the issue is with the core code? Or for example are you expecting the interrupts to work in the Encoder library? The reason I mention this, is the header file in that library has stuff like: #ifdef CORE_INT58_PIN case...
  • M
    Yes the configuration defined by Paul are done correctly, all the #define etc. But could not find to configure interrupts. here are my modified files.
  • BriComp
    Please post your code so that we might be able to see problems and therefore be able to help you.
  • V
    Hi everybody. I use Timer1 on Teensy 4.1 to control stepper motors by pushing pulses. And I use the Ethernet Module via SPI port (10,11,12,13) and open a SocketServer. When receiving data from the Client it is normal, when sending data from...
  • defragster
    Looking ... perhaps it resolves to an issue in teeny4\interrupt.c: Are all the pin 'port' items and #define's properly resolved and the logic involve to set up the interrupt as it does for 'factory' pins? void attachInterrupt(uint8_t pin, void...
  • luni
    There probably are good reasons to use newlib instead of newlib-nano by default. I'm just wondering because ARM developped it for use in embedded processors as opposed to newlib which is meant for linux. The missing float printf / scanf can be...
  • T
    Not to mention that the nano version of newlib also excludes a bunch of other useful things, like %f formatting of floats etc
  • J
    jmarsh replied to the thread Compilation fails.
    Can confirm I also get this occasionally (on windows obviously, because it's mingw throwing a tantrum) and cleaning out the temp files works to get rid of it.
  • C
    I'm using the Teensy 4 Rev D audio card with a Teensy4.1. The audio works well, however when I define the audio output object as AudioOutputI2S, this disables analogRead(22). As far as I can see from the RevD schematic and the pin descriptions...
  • J
    Right, there's "libstdc++.a" which is 4879KB (TD 1.59) and "libstdc++_nano.a" which is 3042KB. But using the Arduino IDE, the only way to use it is to set optimization to "smallest code" instead of using one of the other levels - I don't believe...
  • K
    I currently have a Teensy 4.0 hooked up to the Audio Shield. My project is similar to the audio guestbook project referenced here often but in addition to recording audio, I'd like to use the dial on the phone. I currently have the dial wired...
  • luni
    luni replied to the thread Compilation fails.
    Seems to be the same issue as discussed here: https://forum.pjrc.com/index.php?threads/compile-once-warning-s-compile-again-no-warnings.74822/post-341746
  • defragster
    defragster replied to the thread About expansion to RAM1.
    That seems about right. There are CODE and DATA caches on the 1062 of 32 KB that can speed up access to FLASH and RAM2 RAM2 runs at 1/4 of processor speed to data stored there isn't as fast as RAM1 that runs at processor speed. Also came back to...
  • C
    Hi! From out of the blue I can't compile any of my sketches. It worked fine a week ago, but not now. The following appears in the output during the compilation: "internal error in mingw32_gt_pch_use_address, at config/i386/host-mingw32.c:192...
  • BriComp
    BriComp reacted to jmarsh's post in the thread Teensyduino 1.59 Released with Like Like.
    Linking this here since 1.59 officially "turned on" support for C++17: missing overrides for global operator new Example code: class A { private: char aligned_buffer[32] __attribute__((aligned(32))); public: A() { Serial.print("A lives...
  • jim lee
    OK, I'll give it a whirl! Thanks -jim lee
  • luni
    @shawn: the "smallest-code" option uses the nano version of newlib which is optimized for embedded systems. You can switch to it using the compiler switch --specs = nano.specs. Looks like newlib-nano doesn't have the exception stuff compied in...
  • S
    Interestingly, I don't notice a difference in sizes when I build with the "smallest code" option.
  • defragster
    defragster reacted to jmarsh's post in the thread Teensyduino 1.59 Released with Like Like.
    Linking this here since 1.59 officially "turned on" support for C++17: missing overrides for global operator new Example code: class A { private: char aligned_buffer[32] __attribute__((aligned(32))); public: A() { Serial.print("A lives...
  • J
    jmarsh replied to the thread Teensyduino 1.59 Released.
    Linking this here since 1.59 officially "turned on" support for C++17: missing overrides for global operator new Example code: class A { private: char aligned_buffer[32] __attribute__((aligned(32))); public: A() { Serial.print("A lives...
  • D
    drjohn reacted to duff's post in the thread Porting Teensy 3 library to Teensy 4 with Like Like.
    So I just want let you know I haven't abandoned this project it's that I found out two weeks after getting my new Teensy's that I am moving again and have all my equipment in storage now. I hope this is the last time I have to move but I just...
  • M
    I have encoder setup on the new pins which i made by modifying the core files, but interrupts are not working on them. Is there any other configurations required for new pin to enable interrupts? Digital and analog write are working, but encoders...
Back
Top