Search results

  1. C

    A few schematic questions

    I had been simply using the USB power supply from my computer, all the connections I've tested are all over the board. I think I'll use a quality wall plug for power when moving closer to production. I hadn't thought about using two power supplies. The easiest way would be to keep the digital...
  2. C

    A few schematic questions

    I'll definitely post after I get it running and putz around with it some more. I'm optimistic about the results I could see, but we'll see how things play out in the real world in prototyping.
  3. C

    A few schematic questions

    Good point, and USB is insanely noisy, right now I'm running the vUSB through a 5v-5v regulator, there is much room for improvement there.
  4. C

    A few schematic questions

    It'll be an interesting challenge to see if I truly can get 16 noise free bits from a 24bit ADC, my guess is that yes I can with proper filtering before the input. We'll see :), maybe I'll fall flat on my face and only learn a thing or two on the way. Waiting on my 7.68MHz crystal to arrive so...
  5. C

    A few schematic questions

    I'm still learning quite a bit about signal processing :D I'm using a TI ADS1256IDBT 30kHz 24 bit low noise ADC. At all speeds the noise free bits exceeds 16 bits. I definitely need to ensure my input signals are nice and clean. I'm testing using a plain ol 100kΩ bourns 10% pot filtered with a...
  6. C

    Many axis joystick

    Well, it doesn't error when there are more than 8 axes available at any point in development. However the axes are not shown in the Windows descriptor nor are their values visible in any way I can test. I can only access up to the 8th axis. My Descriptor 0x05, 0x01, //...
  7. C

    Many axis joystick

    I was using iRacing, a simulation racing game. When calibrating wheels/pedals it displays the current device being tracked (based on largest diff in min/max registered across all device axes) min, max, and current vals. It also lists the device number and axis number. I had a 9 axis HID being...
  8. C

    Many axis joystick

    I'm working on a 16-20 bit joystick interface. I had (IIRC) 9 axes at one point in my testing but never checked the windows control panel. I had X, Y, Z, Rx, Rz and 4 sliders. I'll play with my HID Descriptor tonight and see if it 1, actually works and 2, what happens when there are that many...
  9. C

    Teensy2.0++ Lockbits

    Nice! Does the Teensy 3 bootloader follow the same principals? I had no idea one could re-sell the Teensy as a proprietary product with code, nice!
  10. C

    A few schematic questions

    AH! Excellent! That makes perfect sense. Thank you Paul :)
  11. C

    A few schematic questions

    Taking the MK20DX128VLH5 and Nuvoton MINI54 for sale on the the Teensy store my plan was to integrate the teensy into a PCB for my application. Looking over the schematic I had a few questions before I go forward. What are the unlabeled squares circled in red? I've seen this before as a...
Back
Top