Add more transfer functions for Teensy 4.x #62
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vjmuzik
commented
Oct 23, 2020
vjmuzik
commented
- Add transfer16 buffer
- Add transfer32
- Add transfer32 buffer
- Add transfer16 buffer - Add transfer32 - Add transfer32 buffer
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Earlier when I added the transfer buffer stuff, I had a transfer16 with buffer as well and at that time it was decided not to add it... Personally I would like these. However that if we add the 16 bit versions, we should add them also for the T3.x and LC And likewise if this is approved, that we add the asynchronous versions of these as well. As for 32 bit, it is only supported by the T4.x boards and I believe it might help some performance. I have used it in some of the HX8357 code to transfer 24 bit pixels (obviously not SPI library stuff. How much it helped in this case unclear as I was doing it from EXTMEM areas which is relatively slow. |
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These buffer transfer functions are not going to become part of the public API. I'm going to merge this, and then make them private. We need to extend the normal transfer function to use these. |
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Might make them protected instead of private, then could simply subclass... |
