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  • LuisHS's Avatar
    08-25-2018, 08:38 PM
    . With the optimization of the source code that I made, plus the overclock to 168Mhz, it has improved a lot. Basically, I modified the program so that as soon as the interrupt occurs, the first thing to run is the...
    11 replies | 324 view(s)
  • LuisHS's Avatar
    08-25-2018, 06:29 PM
    . Okay thanks. Some time ago I measured with the logic analyzer, it was the clock frequency, 0.1us, 4.54 Mhz. It may be very fast for the Teensy 3.5 DMA. The data is continuous in this application, it never...
    11 replies | 324 view(s)
  • LuisHS's Avatar
    08-25-2018, 04:14 PM
    . One more question. What is difference between attachInterruptVector and attachInterrupt ? For example in this source code, Im not sure that really need the last line, and if I can replace the two first lines,...
    11 replies | 324 view(s)
  • LuisHS's Avatar
    08-25-2018, 03:14 PM
    . There is an external trigger signal for an interrupt that run a function where I do a memcpy to copy the DMA buffer to an array. I think it's here, when I do the memcpy, I lose some data, but I'm not sure if DMA...
    11 replies | 324 view(s)
  • LuisHS's Avatar
    08-25-2018, 08:40 AM
    I mean the library that is added with SPI.h. I have already managed to optimize the source code, and it works much better, not 100%, but it has improved by 95%. Now I only lose some data from time to time, it is...
    11 replies | 324 view(s)
  • LuisHS's Avatar
    08-24-2018, 07:20 PM
    OK, thanks for your reply. Do you know if DMA is affected by the overclock ?. I have a strange case that I do not understand. An application, the same source code compiled for a Teensy 3.6 works perfectly, but...
    11 replies | 324 view(s)
  • LuisHS's Avatar
    08-24-2018, 12:13 PM
    Hello. Teensy 3.5 overclock to 144Mhz or 168Mhz, can it affect the operation of SPI ?. I have problems, and I'm still not sure if it is because I have configure the clock to 144Mhz and 168Mhz. UDP communications...
    11 replies | 324 view(s)
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Teensy 3.5, overclock and SPI 08-25-2018 08:38 PM
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