update for latest libavr32 changes

src/main.c

@@ -415,21 +415,21 @@ void clock(u8 phase) {
 
 
 		// write to DAC
-		spi_selectChip(SPI,DAC_SPI);
+    spi_selectChip(DAC_SPI,DAC_SPI_NPCS);
 		 // spi_write(SPI,0x39);	// update both
-		spi_write(SPI,0x31);	// update A
+    spi_write(DAC_SPI,0x31);	// update A
 		// spi_write(SPI,0x38);	// update B
 		// spi_write(SPI,pos*15);	// send position
  		// spi_write(SPI,0);
- 		spi_write(SPI,cv0>>4);
- 		spi_write(SPI,cv0<<4);
-		spi_unselectChip(SPI,DAC_SPI);
-
-		spi_selectChip(SPI,DAC_SPI);
-		spi_write(SPI,0x38);	// update B
-		spi_write(SPI,cv1>>4);
-		spi_write(SPI,cv1<<4);
-		spi_unselectChip(SPI,DAC_SPI);
+    spi_write(DAC_SPI,cv0>>4);
+    spi_write(DAC_SPI,cv0<<4);
+    spi_unselectChip(DAC_SPI,DAC_SPI_NPCS);
+
+    spi_selectChip(DAC_SPI,DAC_SPI_NPCS);
+    spi_write(DAC_SPI,0x38);	// update B
+    spi_write(DAC_SPI,cv1>>4);
+    spi_write(DAC_SPI,cv1<<4);
+    spi_unselectChip(SPI,DAC_SPI_NPCS);
 	}
 	else {
 		gpio_clr_gpio_pin(B10);