X-Git-Url: https://git.smho.de/gw/?p=owSlave2.git;a=blobdiff_plain;f=common%2FI2C%2FUSI_TWI_Master.h;h=19f3e88d061b5dda832f6bfbed38dab5a2be1cbd;hp=d6b1f85f45f820326b5ac40a56d58e4ba549d948;hb=refs%2Fheads%2Fmaster;hpb=6467d8138460abffd9ddabc7b0a9f00c764af19c

diff --git a/common/I2C/USI_TWI_Master.h b/common/I2C/USI_TWI_Master.h
index d6b1f85..19f3e88 100644
--- a/common/I2C/USI_TWI_Master.h
+++ b/common/I2C/USI_TWI_Master.h
@@ -121,12 +121,23 @@
 #define PIN_USI_SCL         PINA4
 #endif
 
+
+#if defined(__AVR_ATmega328__) | defined(__AVR_ATmega328P__) | defined(__AVR_ATmega328PB__)
+#define DDR_USI             DDRC
+#define PORT_USI            PORTC
+#define PIN_USI             PINC
+#define PORT_USI_SDA        PORTC4
+#define PORT_USI_SCL        PORTC5
+#define PIN_USI_SDA         PINC4
+#define PIN_USI_SCL         PINC5
+#endif
+
 // General defines
 #define TRUE  1
 #define FALSE 0
 
-#define ACK (1<<TWI_NACK_BIT )
-#define NO_ACK 0
+//#define ACK (1<<TWI_NACK_BIT )
+//#define NO_ACK 0
 
 
 //********** Prototypes **********//