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Cristian Maglie 53e25d8b55 [avr] Improved SPI speed on 16bit transfer. From https://github.com/arduino/Arduino/pull/2376#issuecomment-59671152 Quoting Andrew Kroll: [..this commit..] introduces a small delay that can prevent the wait loop form iterating when running at the maximum speed. This gives you a little more speed, even if it seems counter-intuitive. At lower speeds, it is unnoticed. Watch the output on an oscilloscope when running full SPI speed, and you should see closer back-to-back writes. Quoting Paul Stoffregen: I did quite a bit of experimenting with the NOP addition. The one that's in my copy gives about a 10% speedup on AVR.	2014-11-25 15:49:17 +01:00
..
avr	[avr] Improved SPI speed on 16bit transfer.	2014-11-25 15:49:17 +01:00
sam	Upped version to 1.6.0	2014-11-18 14:48:01 +01:00

Cristian Maglie 53e25d8b55 [avr] Improved SPI speed on 16bit transfer.

From https://github.com/arduino/Arduino/pull/2376#issuecomment-59671152

Quoting Andrew Kroll:

   [..this commit..] introduces a small delay that can prevent the wait
   loop form iterating when running at the maximum speed. This gives
   you a little more speed, even if it seems counter-intuitive. At
   lower speeds, it is unnoticed. Watch the output on an oscilloscope
   when running full SPI speed, and you should see closer back-to-back
   writes.

Quoting Paul Stoffregen:

   I did quite a bit of experimenting with the NOP addition. The one
   that's in my copy gives about a 10% speedup on AVR.

2014-11-25 15:49:17 +01:00

avr

[avr] Improved SPI speed on 16bit transfer.

2014-11-25 15:49:17 +01:00

sam

Upped version to 1.6.0

2014-11-18 14:48:01 +01:00