Cristian Maglie a9735bf91f Fix atomicity issues in SPI::beginTransaction and SPI::endTransaction (Andrew Kroll) ... Previously, it could happen that SPI::beginTransaction was interrupted by an ISR, while it is changing the SPI_AVR_EIMSK register or interruptSave variable (it seems that there is a small window after changing SPI_AVR_EIMSK where an interrupt might still occur). If this happens, interruptSave is overwritten with an invalid value, permanently disabling the pin interrupts. To prevent this, disable interrupts globally while changing these values.		2014-11-25 15:56:11 +01:00
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examples	Revert "SPI library to new format"	2013-11-21 15:05:36 +01:00
keywords.txt	Revert "SPI library to new format"	2013-11-21 15:05:36 +01:00
library.properties	missing paragraph field in library.properties	2014-07-18 20:08:01 +02:00
SPI.cpp	[avr] Made SPI.usingInterrupt() synchronized (Andrew Kroll)	2014-11-25 15:56:11 +01:00
SPI.h	Fix atomicity issues in SPI::beginTransaction and SPI::endTransaction (Andrew Kroll)	2014-11-25 15:56:11 +01:00