Forum Rule: Always post complete source code & details to reproduce any issue!
Tab Content
  • OhioJim's Avatar
    10-17-2020, 08:06 PM
    Thanks, Kurt. But I am not talking about the smallest interval, but the resolution. For example, if I want something like 376967.792 microseconds, will it get rounded to 376968 or 376967.8 or 376967.79? Another...
    8 replies | 404 view(s)
  • OhioJim's Avatar
    10-17-2020, 05:34 PM
    I need to generate a precisely timed pulse train. For example, a 10uS pulse every 0.376467 +/- seconds. It looks like this could be done with the IntervalTimer functionality. I see that this takes a parameter which...
    8 replies | 404 view(s)
  • OhioJim's Avatar
    10-14-2020, 08:32 PM
    Thank you! Thank you! Thank you! I'll play around with it and see what colors I like. It is not so much the white on black (although the font could be larger), but the red letters on black for an error. Red/Black...
    8 replies | 407 view(s)
  • OhioJim's Avatar
    10-14-2020, 04:17 PM
    How???? If it was easy I would have figured it out by now. I am, as I type this on my laptop, looking at the Preferences window on my desktop. There is NOTHING about font size and color. There is a pull-down...
    8 replies | 407 view(s)
  • OhioJim's Avatar
    10-04-2020, 07:44 PM
    ...which allows the L6470 sufficient time to process the data before the next time CS is asserted. All I can say is that it now works when the original code did not. Maybe some day I will try other delays.
    13 replies | 353 view(s)
  • OhioJim's Avatar
    10-04-2020, 06:56 PM
    I feel that they are needed. The delay values are what I found to work in the "straight line" code that bypassed getParam() (and consequently SPIXfer()). There needs to be a delay between asserting CS and the byte...
    13 replies | 353 view(s)
  • OhioJim's Avatar
    10-04-2020, 04:32 PM
    Here is the modified SPIXfer function, which is located in SparkFunAutoDriverSupport.cpp.
    13 replies | 353 view(s)
  • OhioJim's Avatar
    10-04-2020, 04:28 PM
    It appears that there is a problem with using the SparkFun AutoDriver Library on a T4.0. Assuming that it works correctly on other slower processors. My conclusion is that the T4.0 is too fast, and tries to access...
    13 replies | 353 view(s)
  • OhioJim's Avatar
    10-03-2020, 06:24 PM
    Sorry about that. I don't know how I missed it in SparkFunAutoDriverSupport.cpp. So why do all the tutorials talk about setting the SPI speed using SPISettings, when deep inside the library it is hard coded???? ...
    13 replies | 353 view(s)
  • OhioJim's Avatar
    10-03-2020, 05:15 PM
    I started another thread because I have "solved" my first problem, which was caused by having the wrong SPI clock. Now the problem is how to set the clock. The getParam() function is part of the Sparkfun L6470...
    13 replies | 353 view(s)
No More Results
About OhioJim

Basic Information

Statistics


Total Posts
Total Posts
67
Posts Per Day
0.57
Last Post
T4.0 IntervalTimer question 10-17-2020 08:06 PM
General Information
Last Activity
10-17-2020 08:06 PM
Join Date
08-06-2020