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Type: Posts; User: scharkalvin

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    What do the numbers in () (IE: Serial1(4) mean? ...

    What do the numbers in () (IE: Serial1(4) mean? (Guess I might need the CPU datasheet to figure that out)
    Can you post the spreadsheet file?
    Thanks!
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    Teensy 4.0 SPI pins

    The pinout diagram for the Teensy 4.0 seems to be missing the MISO1 pin. There are pins for MOSI1, and SCK1. (CS1 is also missing, but in most cases ANY pin can be assigned for that).
    There are...
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    YES, it was the rules file. I thought I had...

    YES, it was the rules file. I thought I had installed that, but upon checking I saw that I'd only updated the rules files for some AdaFruit boards. I greped the entire rules.d directory for...
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    Teensy 4 upload problem

    I have teensyduino running on Kubuntu. I tried the teensy blink demo sketch. It compiles fine, but won't upload to teensy 4.0. I verified I have the right serial port selected, and teensy usb is...
  5. Using teensy audio library with SAMD processors?

    I bought a Teensy audio board hoping to use it with an Adafruit SAMD board (I now also have a T4). Is the library compatible with any Arm Cortex M0+, M4, or M7 processor having an I2S interface to...
  6. can you share the i2c interface with the audio library?

    Can I use the "wire0" i2c pins with another i2c device (IE: Si5351 clock gen) while using the audio library with the Teensy Audio board?
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    I2C and audio library

    I know that the I2c "wire0" is used by the audio library for the audio board. It should be possible to share this interface HW with another I2C device (such as an Si5351 clock generator) provided...
  8. Teensy 4 round pads, where do they go?

    The back side of the Teensy 4 has several round pads that are not labeled on the schematic or the color pin drawing. There are 4 such pads between the rectangular pads for "pins" 24-33, another one...
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    T4 Audio board bodges

    I've read that the existing audio board won't work as is on the T4. I checked the on line schematic for the AB and it didn't show the mentioned 100 ohm resistor on MCLK. Is that a series resistor...
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    I know about the Talldog one, thanks for the...

    I know about the Talldog one, thanks for the other links.
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    Yes, I did. That looks like it was for the...

    Yes, I did. That looks like it was for the Teensy 3.1 wired to the Ramps board, a good place to start. Might have to be changed a bit for the 3.5/3.6, and if I try to do something with the SAMD,...
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    I was thinking of building a printer controller...

    I was thinking of building a printer controller around the Teensy3.x, or an Atmel SAMD21J18A chip. So I wondered just how many I/O were needed to drive a 3d printer.
    Stepper motors (step, dir,...
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    I'm interested in this, is current code with...

    I'm interested in this, is current code with heater-thermistor control posted somewhere The only thing I found on github was over a year old.
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