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altos/lpc: Give up on interrupt-driven SPI driver
author
Keith Packard
<keithp@keithp.com>
Sat, 7 Feb 2015 09:05:57 +0000
(
01:05
-0800)
committer
Keith Packard
<keithp@keithp.com>
Sat, 7 Feb 2015 09:05:57 +0000
(
01:05
-0800)
There are just too many limitations in when interrupts are delivered
to make them useful. Instead, just drive the SPI directly with the
CPU. At higher spi speeds (6Mhz or more), it's probably faster to do
it this way anyways.
Signed-off-by: Keith Packard <keithp@keithp.com>
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