Makefile separator errors fixed

1 files changed, 147 insertions, 0 deletions

diff --git a/twi_master_driver.h b/twi_master_driver.h
new file mode 100644
index 0000000..c6620f7
--- /dev/null
+++ b/twi_master_driver.h
@@ -0,0 +1,147 @@
+/* This file has been prepared for Doxygen automatic documentation generation.*/

+/*! \file *********************************************************************

+ *

+ * \brief  XMEGA TWI master driver header file.

+ *

+ *      This file contains the function prototypes and enumerator definitions

+ *      for various configuration parameters for the XMEGA TWI master driver.

+ *

+ *      The driver is not intended for size and/or speed critical code, since

+ *      most functions are just a few lines of code, and the function call

+ *      overhead would decrease code performance. The driver is intended for

+ *      rapid prototyping and documentation purposes for getting started with

+ *      the XMEGA TWI master module.

+ *

+ *      For size and/or speed critical code, it is recommended to copy the

+ *      function contents directly into your application instead of making

+ *      a function call.

+ *

+ * \par Application note:

+ *      AVR1308: Using the XMEGA TWI

+ *

+ * \par Documentation

+ *      For comprehensive code documentation, supported compilers, compiler

+ *      settings and supported devices see readme.html

+ *

+ * \author

+ *      Atmel Corporation: http://www.atmel.com \n

+ *      Support email: avr@atmel.com

+ *

+ * $Revision: 1569 $

+ * $Date: 2008-04-22 13:03:43 +0200 (ti, 22 apr 2008) $  \n

+ *

+ * Copyright (c) 2008, Atmel Corporation All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * 1. Redistributions of source code must retain the above copyright notice,

+ * this list of conditions and the following disclaimer.

+ *

+ * 2. Redistributions in binary form must reproduce the above copyright notice,

+ * this list of conditions and the following disclaimer in the documentation

+ * and/or other materials provided with the distribution.

+ *

+ * 3. The name of ATMEL may not be used to endorse or promote products derived

+ * from this software without specific prior written permission.

+ *

+ * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED

+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND

+ * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,

+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ *****************************************************************************/

+#ifndef TWI_MASTER_DRIVER_H

+#define TWI_MASTER_DRIVER_H

+

+#include "avr_compiler.h"

+

+/*! Baud register setting calculation. Formula described in datasheet. */

+#define TWI_BAUD(F_SYS, F_TWI) ((F_SYS / (2 * F_TWI)) - 5)

+

+

+/*! Transaction status defines. */

+#define TWIM_STATUS_READY              0

+#define TWIM_STATUS_BUSY               1

+

+

+/*! Transaction result enumeration. */

+typedef enum TWIM_RESULT_enum {

+	TWIM_RESULT_UNKNOWN          = (0x00<<0),

+	TWIM_RESULT_OK               = (0x01<<0),

+	TWIM_RESULT_BUFFER_OVERFLOW  = (0x02<<0),

+	TWIM_RESULT_ARBITRATION_LOST = (0x03<<0),

+	TWIM_RESULT_BUS_ERROR        = (0x04<<0),

+	TWIM_RESULT_NACK_RECEIVED    = (0x05<<0),

+	TWIM_RESULT_FAIL             = (0x06<<0),

+} TWIM_RESULT_t;

+

+/*! Buffer size defines */

+#define TWIM_WRITE_BUFFER_SIZE         8

+#define TWIM_READ_BUFFER_SIZE          8

+

+

+/*! \brief TWI master driver struct

+ *

+ *  TWI master struct. Holds pointer to TWI module,

+ *  buffers and necessary varibles.

+ */

+typedef struct TWI_Master {

+	TWI_t *interface;                  /*!< Pointer to what interface to use */

+	register8_t address;                            /*!< Slave address */

+	register8_t writeData[TWIM_WRITE_BUFFER_SIZE];  /*!< Data to write */

+	register8_t readData[TWIM_READ_BUFFER_SIZE];    /*!< Read data */

+	register8_t bytesToWrite;                       /*!< Number of bytes to write */

+	register8_t bytesToRead;                        /*!< Number of bytes to read */

+	register8_t bytesWritten;                       /*!< Number of bytes written */

+	register8_t bytesRead;                          /*!< Number of bytes read */

+	register8_t status;                             /*!< Status of transaction */

+	register8_t result;                             /*!< Result of transaction */

+}TWI_Master_t;

+

+

+

+void TWI_MasterInit(TWI_Master_t *twi,

+                    TWI_t *module,

+                    TWI_MASTER_INTLVL_t intLevel,

+                    uint8_t baudRateRegisterSetting);

+TWI_MASTER_BUSSTATE_t TWI_MasterState(TWI_Master_t *twi);

+bool TWI_MasterReady(TWI_Master_t *twi);

+bool TWI_MasterWrite(TWI_Master_t *twi,

+                     uint8_t address,

+                     uint8_t * writeData,

+                     uint8_t bytesToWrite);

+bool TWI_MasterRead(TWI_Master_t *twi,

+                    uint8_t address,

+                    uint8_t bytesToRead);

+bool TWI_MasterWriteRead(TWI_Master_t *twi,

+                         uint8_t address,

+                         uint8_t *writeData,

+                         uint8_t bytesToWrite,

+                         uint8_t bytesToRead);

+void TWI_MasterInterruptHandler(TWI_Master_t *twi);

+void TWI_MasterArbitrationLostBusErrorHandler(TWI_Master_t *twi);

+void TWI_MasterWriteHandler(TWI_Master_t *twi);

+void TWI_MasterReadHandler(TWI_Master_t *twi);

+void TWI_MasterTransactionFinished(TWI_Master_t *twi, uint8_t result);

+

+

+/*! TWI master interrupt service routine.

+ *

+ *  Interrupt service routine for the TWI master. Copy the needed vectors

+ *  into your code.

+ *

+    ISR(TWIC_TWIM_vect)

+    {

+      TWI_MasterInterruptHandler(&twiMaster);

+    }

+

+ *

+ */

+

+#endif /* TWI_MASTER_DRIVER_H */