Update the TempDataLogger project and driver documentation to use the new...

Update the TempDataLogger project and driver documentation to use the new TWI_BITLENGTH_FROM_FREQ() macro.

LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.h

@@ -52,8 +52,8 @@
  *
  *  <b>Low Level API Example:</b>
  *  \code
- *      // Initialize the TWI driver before first use
- *      TWI_Init(TWI_BIT_PRESCALE_1, 10);
+ *      // Initialize the TWI driver before first use at 200KHz
+ *      TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 200000));
  *
  *      // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout
  *      if (TWI_StartTransmission(0xA0 | TWI_ADDRESS_WRITE, 10) == TWI_ERROR_NoError)
@@ -91,8 +91,8 @@
  * 
  *  <b>High Level API Example:</b>
  *  \code
- *      // Initialize the TWI driver before first use
- *      TWI_Init(TWI_BIT_PRESCALE_1, 10);
+ *      // Initialize the TWI driver before first use at 200KHz
+ *      TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 200000));
  *
  *      // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout
  *      uint8_t InternalWriteAddress = 0xDC;

Projects/TempDataLogger/TempDataLogger.c

@@ -200,7 +200,7 @@ void SetupHardware(void)
 	Temperature_Init();
 	Dataflash_Init();
 	USB_Init();
-	TWI_Init(TWI_BIT_PRESCALE_4, (F_CPU / 4 / 50000) / 2);
+	TWI_Init(TWI_BIT_PRESCALE_4, TWI_BITLENGTH_FROM_FREQ(4, 50000));
 
 	/* 500ms logging interval timer configuration */
 	OCR1A   = (((F_CPU / 1024) / 2) - 1);