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Diffstat (limited to 'digital/avr/modules/spi/spi.h')
-rw-r--r--digital/avr/modules/spi/spi.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/digital/avr/modules/spi/spi.h b/digital/avr/modules/spi/spi.h
index e7e2caa8..9d43eec0 100644
--- a/digital/avr/modules/spi/spi.h
+++ b/digital/avr/modules/spi/spi.h
@@ -30,10 +30,12 @@
#define SPI_PORT PORTB
#if defined (__AVR_ATmega128__)
+#define SPI_BIT_SS 0
#define SPI_BIT_SCK 1
#define SPI_BIT_MOSI 2
#define SPI_BIT_MISO 3
#elif defined (__AVR_ATmega16__)
+#define SPI_BIT_SS 4
#define SPI_BIT_SCK 7
#define SPI_BIT_MOSI 5
#define SPI_BIT_MISO 6