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-rw-r--r--LUFA/Drivers/Peripheral/SPI.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/LUFA/Drivers/Peripheral/SPI.h b/LUFA/Drivers/Peripheral/SPI.h
index d8d60ede5..66cdaf513 100644
--- a/LUFA/Drivers/Peripheral/SPI.h
+++ b/LUFA/Drivers/Peripheral/SPI.h
@@ -102,7 +102,9 @@
(PrescalerMask & ~SPI_USE_DOUBLESPEED));
if (PrescalerMask & SPI_USE_DOUBLESPEED)
- SPSR = (1 << SPI2X);
+ SPSR |= (1 << SPI2X);
+ else
+ SPSR &= ~(1 << SPI2X);
}
/** Sends and receives a byte through the SPI interface, blocking until the transfer is complete.