Add new ARCH option to the makefiles to (eventually) specify the target device architecture. Update non-usb peripheral drivers to reflect future multiple architecture support.
Dean Camera
14 years ago
parent
100a197d0e
commit
3d4d8e7f62
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2011.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
|
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software and its documentation for any purpose is hereby granted
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
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The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
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||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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* \brief Supported architecture defines.
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*
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* This file contains constants which can be passed to the compiler (via setting the macro ARCH) in the
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* user project makefile using the -D option to configure the library drivers.
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*
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* \note Do not include this file directly, rather include the Common.h header file instead to gain this file's
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* functionality.
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*/
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/** \ingroup Group_Common
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* \defgroup Group_Architectures Hardware Architectures
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*
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* Macros for indicating the chosen hardware architecture to the library. These macros should be used when
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* defining the ARCH token to the chosen hardware via the -D switch in the project makefile.
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*
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* @{
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*/
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#ifndef __LUFA_ARCHITECTURES_H__
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#define __LUFA_ARCHITECTURES_H__
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/* Preprocessor Checks: */
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#if !defined(__INCLUDE_FROM_COMMON_H)
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#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
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#endif
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/* Public Interface - May be used in end-application: */
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/* Macros: */
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/** Selects the Atmel 8-bit AVR (AT90USB* and ATMEGA*U* chips) architecture. */
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#define ARCH_AVR8 1
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#if !defined(__DOXYGEN__)
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#define ARCH_ ARCH_AVR8
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#if !defined(ARCH)
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#define ARCH ARCH_AVR8
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#endif
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#endif
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#endif
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/** @} */
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@ -0,0 +1,239 @@
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2011.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
|
||||
software and its documentation for any purpose is hereby granted
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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* \brief SPI Peripheral Driver (AVR8)
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*
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* On-chip SPI driver for the 8-bit AVR microcontrollers.
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*
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* \note This file should not be included directly. It is automatically included as needed by the SPI driver
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* dispatch header located in LUFA/Drivers/Peripheral/SPI.h.
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*/
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/** \ingroup Group_SPI
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* \defgroup Group_SPI_AVR8 SPI Peripheral Driver (AVR8)
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*
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* \section Sec_ModDescription Module Description
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* Driver for the hardware SPI port available on most 8-bit AVR microcontroller models. This
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* module provides an easy to use driver for the setup and transfer of data over the
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* AVR's SPI port.
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*
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* \note This file should not be included directly. It is automatically included as needed by the SPI driver
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* dispatch header located in LUFA/Drivers/Peripheral/SPI.h.
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*
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* \section Sec_ExampleUsage Example Usage
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* The following snippet is an example of how this module may be used within a typical
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* application.
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*
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* \code
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* // Initialise the SPI driver before first use
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* SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_FALLING |
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* SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
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*
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* // Send several bytes, ignoring the returned data
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* SPI_SendByte(0x01);
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* SPI_SendByte(0x02);
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* SPI_SendByte(0x03);
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*
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* // Receive several bytes, sending a dummy 0x00 byte each time
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* uint8_t Byte1 = SPI_ReceiveByte();
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* uint8_t Byte2 = SPI_ReceiveByte();
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* uint8_t Byte3 = SPI_ReceiveByte();
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*
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* // Send a byte, and store the received byte from the same transaction
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* uint8_t ResponseByte = SPI_TransferByte(0xDC);
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* \endcode
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*
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* @{
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*/
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#ifndef __SPI_AVR8_H__
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#define __SPI_AVR8_H__
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/* Includes: */
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#include "../../../Common/Common.h"
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/* Enable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Preprocessor Checks: */
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#if !defined(__INCLUDE_FROM_SPI_H)
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#error Do not include this file directly. Include LUFA/Drivers/Peripheral/SPI.h instead.
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#endif
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/* Private Interface - For use in library only: */
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#if !defined(__DOXYGEN__)
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/* Macros: */
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#define SPI_USE_DOUBLESPEED (1 << SPE)
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#endif
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/* Public Interface - May be used in end-application: */
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/* Macros: */
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/** \name SPI Prescaler Configuration Masks */
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//@{
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 2. */
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#define SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 4. */
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#define SPI_SPEED_FCPU_DIV_4 0
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 8. */
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#define SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED | (1 << SPR0))
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 16. */
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#define SPI_SPEED_FCPU_DIV_16 (1 << SPR0)
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 32. */
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#define SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED | (1 << SPR1))
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 64. */
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#define SPI_SPEED_FCPU_DIV_64 (SPI_USE_DOUBLESPEED | (1 << SPR1) | (1 << SPR0))
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 128. */
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#define SPI_SPEED_FCPU_DIV_128 ((1 << SPR1) | (1 << SPR0))
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//@}
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/** \name SPI SCK Polarity Configuration Masks */
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//@{
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/** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the rising edge. */
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#define SPI_SCK_LEAD_RISING (0 << CPOL)
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/** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the falling edge. */
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#define SPI_SCK_LEAD_FALLING (1 << CPOL)
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//@}
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/** \name SPI Sample Edge Configuration Masks */
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//@{
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/** SPI data sample mode mask for \c SPI_Init(). Indicates that the data should sampled on the leading edge. */
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#define SPI_SAMPLE_LEADING (0 << CPHA)
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/** SPI data sample mode mask for \c SPI_Init(). Indicates that the data should be sampled on the trailing edge. */
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#define SPI_SAMPLE_TRAILING (1 << CPHA)
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//@}
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/** \name SPI Data Ordering Configuration Masks */
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//@{
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/** SPI data order mask for \c SPI_Init(). Indicates that data should be shifted out MSB first. */
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#define SPI_ORDER_MSB_FIRST (0 << DORD)
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/** SPI data order mask for \c SPI_Init(). Indicates that data should be shifted out MSB first. */
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#define SPI_ORDER_LSB_FIRST (1 << DORD)
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//@}
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/** \name SPI Mode Configuration Masks */
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//@{
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/** SPI mode mask for \c SPI_Init(). Indicates that the SPI interface should be initialized into slave mode. */
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#define SPI_MODE_SLAVE (0 << MSTR)
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/** SPI mode mask for \c SPI_Init(). Indicates that the SPI interface should be initialized into master mode. */
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#define SPI_MODE_MASTER (1 << MSTR)
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//@}
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/* Inline Functions: */
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/** Initialises the SPI subsystem, ready for transfers. Must be called before calling any other
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* SPI routines.
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*
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* \param[in] SPIOptions SPI Options, a mask consisting of one of each of the \c SPI_SPEED_*,
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* \c SPI_SCK_*, \c SPI_SAMPLE_*, \c SPI_ORDER_* and \c SPI_MODE_* masks.
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*/
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static inline void SPI_Init(const uint8_t SPIOptions)
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{
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DDRB |= ((1 << 1) | (1 << 2));
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DDRB &= ~((1 << 0) | (1 << 3));
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PORTB |= ((1 << 0) | (1 << 3));
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SPCR = ((1 << SPE) | SPIOptions);
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if (SPIOptions & SPI_USE_DOUBLESPEED)
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SPSR |= (1 << SPI2X);
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else
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SPSR &= ~(1 << SPI2X);
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}
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/** Turns off the SPI driver, disabling and returning used hardware to their default configuration. */
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static inline void SPI_Disable(void)
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{
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DDRB &= ~((1 << 1) | (1 << 2));
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PORTB &= ~((1 << 0) | (1 << 3));
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SPCR = 0;
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SPSR = 0;
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}
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/** Sends and receives a byte through the SPI interface, blocking until the transfer is complete.
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*
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* \param[in] Byte Byte to send through the SPI interface.
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*
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* \return Response byte from the attached SPI device.
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*/
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static inline uint8_t SPI_TransferByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
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static inline uint8_t SPI_TransferByte(const uint8_t Byte)
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{
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SPDR = Byte;
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while (!(SPSR & (1 << SPIF)));
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return SPDR;
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}
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/** Sends a byte through the SPI interface, blocking until the transfer is complete. The response
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* byte sent to from the attached SPI device is ignored.
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*
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* \param[in] Byte Byte to send through the SPI interface.
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*/
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static inline void SPI_SendByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
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static inline void SPI_SendByte(const uint8_t Byte)
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{
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SPDR = Byte;
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while (!(SPSR & (1 << SPIF)));
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}
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/** Sends a dummy byte through the SPI interface, blocking until the transfer is complete. The response
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* byte from the attached SPI device is returned.
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*
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* \return The response byte from the attached SPI device.
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*/
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static inline uint8_t SPI_ReceiveByte(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
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static inline uint8_t SPI_ReceiveByte(void)
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{
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SPDR = 0x00;
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while (!(SPSR & (1 << SPIF)));
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return SPDR;
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}
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/* Disable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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}
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#endif
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#endif
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/** @} */
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@ -0,0 +1,251 @@
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2011.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
|
||||
software and its documentation for any purpose is hereby granted
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
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||||
this software.
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*/
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/** \file
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* \brief Serial USART Peripheral Driver (AVR8)
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*
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* On-chip serial USART driver for the 8-bit AVR microcontrollers.
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*
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* \note This file should not be included directly. It is automatically included as needed by the USART driver
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* dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
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*/
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/** \ingroup Group_Serial
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* \defgroup Group_Serial_AVR8 Serial USART Peripheral Driver (AVR8)
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*
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* \section Sec_ModDescription Module Description
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* On-chip serial USART driver for the 8-bit AVR microcontrollers.
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*
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* \note This file should not be included directly. It is automatically included as needed by the ADC driver
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* dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
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*
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* \section Sec_ExampleUsage Example Usage
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* The following snippet is an example of how this module may be used within a typical
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* application.
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*
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* \code
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* // Initialise the serial USART driver before first use, with 9600 baud (and no double-speed mode)
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* Serial_Init(9600, false);
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*
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* // Send a string through the USART
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* Serial_TxString("Test String\r\n");
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*
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* // Receive a byte through the USART
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* uint8_t DataByte = Serial_RxByte();
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* \endcode
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*
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* @{
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*/
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#ifndef __SERIAL_AVR8_H__
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#define __SERIAL_AVR8_H__
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/* Includes: */
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#include "../../../Common/Common.h"
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#include "../../Misc/TerminalCodes.h"
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#include <stdio.h>
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/* Enable C linkage for C++ Compilers: */
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Preprocessor Checks: */
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#if !defined(__INCLUDE_FROM_SERIAL_H) && !defined(__INCLUDE_FROM_SERIAL_C)
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#error Do not include this file directly. Include LUFA/Drivers/Peripheral/Serial.h instead.
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#endif
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/* Private Interface - For use in library only: */
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#if !defined(__DOXYGEN__)
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/* External Variables: */
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extern FILE USARTSerialStream;
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/* Function Prototypes: */
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int Serial_putchar(char DataByte,
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FILE *Stream);
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int Serial_getchar(FILE *Stream);
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int Serial_getchar_Blocking(FILE *Stream);
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#endif
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/* Public Interface - May be used in end-application: */
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/* Macros: */
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/** Macro for calculating the baud value from a given baud rate when the U2X (double speed) bit is
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* not set.
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*/
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#define SERIAL_UBBRVAL(baud) ((((F_CPU / 16) + (baud / 2)) / (baud)) - 1)
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/** Macro for calculating the baud value from a given baud rate when the U2X (double speed) bit is
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* set.
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*/
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#define SERIAL_2X_UBBRVAL(baud) ((((F_CPU / 8) + (baud / 2)) / (baud)) - 1)
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/* Function Prototypes: */
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/** Transmits a given string located in program space (FLASH) through the USART.
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*
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* \param[in] FlashStringPtr Pointer to a string located in program space.
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*/
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void Serial_SendString_P(const char* FlashStringPtr) ATTR_NON_NULL_PTR_ARG(1);
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/** Transmits a given string located in SRAM memory through the USART.
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*
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* \param[in] StringPtr Pointer to a string located in SRAM space.
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*/
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void Serial_SendString(const char* StringPtr) ATTR_NON_NULL_PTR_ARG(1);
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/** Transmits a given buffer located in SRAM memory through the USART.
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*
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* \param[in] Buffer Pointer to a buffer containing the data to send.
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* \param[in] Length Length of the data to send, in bytes.
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*/
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void Serial_SendData(const uint8_t* Buffer, uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
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/* Inline Functions: */
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/** Initializes the USART, ready for serial data transmission and reception. This initializes the interface to
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* standard 8-bit, no parity, 1 stop bit settings suitable for most applications.
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*
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* \param[in] BaudRate Serial baud rate, in bits per second.
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* \param[in] DoubleSpeed Enables double speed mode when set, halving the sample time to double the baud rate.
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*/
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static inline void Serial_Init(const uint32_t BaudRate,
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const bool DoubleSpeed)
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{
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UBRR1 = (DoubleSpeed ? SERIAL_2X_UBBRVAL(BaudRate) : SERIAL_UBBRVAL(BaudRate));
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UCSR1C = ((1 << UCSZ11) | (1 << UCSZ10));
|
||||
UCSR1A = (DoubleSpeed ? (1 << U2X1) : 0);
|
||||
UCSR1B = ((1 << TXEN1) | (1 << RXEN1));
|
||||
|
||||
DDRD |= (1 << 3);
|
||||
PORTD |= (1 << 2);
|
||||
}
|
||||
|
||||
/** Turns off the USART driver, disabling and returning used hardware to their default configuration. */
|
||||
static inline void Serial_Disable(void)
|
||||
{
|
||||
UCSR1B = 0;
|
||||
UCSR1A = 0;
|
||||
UCSR1C = 0;
|
||||
|
||||
UBRR1 = 0;
|
||||
|
||||
DDRD &= ~(1 << 3);
|
||||
PORTD &= ~(1 << 2);
|
||||
}
|
||||
|
||||
/** Creates a standard character stream from the USART so that it can be used with all the regular functions
|
||||
* in the avr-libc \c <stdio.h> library that accept a \c FILE stream as a destination (e.g. \c fprintf). The created
|
||||
* stream is bidirectional and can be used for both input and output functions.
|
||||
*
|
||||
* Reading data from this stream is non-blocking, i.e. in most instances, complete strings cannot be read in by a single
|
||||
* fetch, as the endpoint will not be ready at some point in the transmission, aborting the transfer. However, this may
|
||||
* be used when the read data is processed byte-per-bye (via \c getc()) or when the user application will implement its own
|
||||
* line buffering.
|
||||
*
|
||||
* \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed, if \c NULL stdio
|
||||
* and stdin will be configured to use the USART.
|
||||
*
|
||||
* \pre The USART must first be configured via a call to \ref Serial_Init() before the stream is used.
|
||||
*/
|
||||
static inline void Serial_CreateStream(FILE* Stream)
|
||||
{
|
||||
if (!(Stream))
|
||||
{
|
||||
Stream = &USARTSerialStream;
|
||||
stdin = Stream;
|
||||
stdout = Stream;
|
||||
}
|
||||
|
||||
*Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar, _FDEV_SETUP_RW);
|
||||
}
|
||||
|
||||
/** Identical to \ref Serial_CreateStream(), except that reads are blocking until the calling stream function terminates
|
||||
* the transfer.
|
||||
*
|
||||
* \param[in,out] Stream Pointer to a FILE structure where the created stream should be placed, if \c NULL stdio
|
||||
* and stdin will be configured to use the USART.
|
||||
*
|
||||
* \pre The USART must first be configured via a call to \ref Serial_Init() before the stream is used.
|
||||
*/
|
||||
static inline void Serial_CreateBlockingStream(FILE* Stream)
|
||||
{
|
||||
if (!(Stream))
|
||||
{
|
||||
Stream = &USARTSerialStream;
|
||||
stdin = Stream;
|
||||
stdout = Stream;
|
||||
}
|
||||
|
||||
*Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar_Blocking, _FDEV_SETUP_RW);
|
||||
}
|
||||
|
||||
/** Indicates whether a character has been received through the USART.
|
||||
*
|
||||
* \return Boolean \c true if a character has been received, \c false otherwise.
|
||||
*/
|
||||
static inline bool Serial_IsCharReceived(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
||||
static inline bool Serial_IsCharReceived(void)
|
||||
{
|
||||
return ((UCSR1A & (1 << RXC1)) ? true : false);
|
||||
}
|
||||
|
||||
/** Transmits a given byte through the USART.
|
||||
*
|
||||
* \param[in] DataByte Byte to transmit through the USART.
|
||||
*/
|
||||
static inline void Serial_SendByte(const char DataByte) ATTR_ALWAYS_INLINE;
|
||||
static inline void Serial_SendByte(const char DataByte)
|
||||
{
|
||||
while (!(UCSR1A & (1 << UDRE1)));
|
||||
UDR1 = DataByte;
|
||||
}
|
||||
|
||||
/** Receives the next byte from the USART.
|
||||
*
|
||||
* \return Next byte received from the USART, or a negative value if no byte has been received.
|
||||
*/
|
||||
static inline int16_t Serial_ReceiveByte(void) ATTR_ALWAYS_INLINE;
|
||||
static inline int16_t Serial_ReceiveByte(void)
|
||||
{
|
||||
if (!(Serial_IsCharReceived()))
|
||||
return -1;
|
||||
|
||||
return UDR1;
|
||||
}
|
||||
|
||||
/* Disable C linkage for C++ Compilers: */
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
/** @} */
|
||||
|
||||
Loading…
Reference in new issue