Forum Rule: Always post complete source code & details to reproduce any issue!
Tab Content
  • Deane's Avatar
    01-21-2021, 11:33 PM
    @MarkT : Are you suggesting to integrate the analog output of the APD and sample it at a slower rate, like maybe once every 200 ns (5 MHz rate)? I suppose that could work but the internal A/D has a 1 MHz sample rate...
    24 replies | 928 view(s)
  • Deane's Avatar
    01-19-2021, 10:40 PM
    PaulS, no that wouldn't work as I need to know the amount of signal coming back. That is essential and important data. It would not be either on or off. I have a 20 Mega samples per second A/D Maxim 1425 but there are...
    24 replies | 928 view(s)
  • Deane's Avatar
    01-19-2021, 05:42 PM
    I was thinking the A/D could do it because the processor is 600 MHz and as of last January no one seemed to know the speed of the A/D. Maybe more info has come out since then. The manual for the ARM chip is over 1000...
    24 replies | 928 view(s)
  • Deane's Avatar
    01-19-2021, 04:37 PM
    Thanks for informing me about the tricks in getting max speed from the Teensy 4. I would be happy to explain the goals. I am trying to build a specialized LIDAR system with a range up to 1km. So the timing would look...
    24 replies | 928 view(s)
  • Deane's Avatar
    01-19-2021, 03:28 PM
    What is the purpose of the line? for (;;) Wouldn't the loop run forever without this for statement because it is already inside the "loop()" command? Also, I have a question about a command I have never seen a...
    24 replies | 928 view(s)
  • Deane's Avatar
    01-19-2021, 01:05 AM
    @Frank B Thank you for the updated code. It works. However the code I was using was an offical PRJC demo program so I don't know why the disable Interupts command was in there to start with. I have a lot to work...
    24 replies | 928 view(s)
  • Deane's Avatar
    01-18-2021, 03:58 AM
    After giving up on the Teensy 4 for lack of fast AD conversions last January I dragged it out and started playing with it as my lidar timing generator. My notes say I had it creating 100 ns. pulses but when I run the...
    24 replies | 928 view(s)
No More Results
About Deane

Basic Information

Statistics


Total Posts
Total Posts
37
Posts Per Day
0.09
Last Post
Teensy 4.0 pulse output 01-21-2021 11:33 PM
General Information
Last Activity
01-21-2021 11:33 PM
Join Date
12-27-2019