Now includes LUFA-120730 in repository
This commit is contained in:
tmk
parent
e9e4c0edc5
commit
8215634175
306 changed files with 64019 additions and 0 deletions
|
|
@ -0,0 +1,248 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2012.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.lufa-lib.org
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
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
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
* \brief SPI Peripheral Driver (XMEGA)
|
||||
*
|
||||
* On-chip SPI driver for the XMEGA microcontrollers.
|
||||
*
|
||||
* \note This file should not be included directly. It is automatically included as needed by the SPI driver
|
||||
* dispatch header located in LUFA/Drivers/Peripheral/SPI.h.
|
||||
*/
|
||||
|
||||
/** \ingroup Group_SPI
|
||||
* \defgroup Group_SPI_XMEGA SPI Peripheral Driver (XMEGA)
|
||||
*
|
||||
* \section Sec_ModDescription Module Description
|
||||
* Driver for the hardware SPI port(s) available on XMEGA AVR microcontroller models. This
|
||||
* module provides an easy to use driver for the setup and transfer of data over the AVR's
|
||||
* SPI ports.
|
||||
*
|
||||
* \note This file should not be included directly. It is automatically included as needed by the SPI driver
|
||||
* dispatch header located in LUFA/Drivers/Peripheral/SPI.h.
|
||||
*
|
||||
* \code
|
||||
* // Initialize the SPI driver before first use
|
||||
* SPI_Init(&SPIC,
|
||||
* SPI_SPEED_FCPU_DIV_2 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_FALLING |
|
||||
* SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
|
||||
*
|
||||
* // Send several bytes, ignoring the returned data
|
||||
* SPI_SendByte(&SPIC, 0x01);
|
||||
* SPI_SendByte(&SPIC, 0x02);
|
||||
* SPI_SendByte(&SPIC, 0x03);
|
||||
*
|
||||
* // Receive several bytes, sending a dummy 0x00 byte each time
|
||||
* uint8_t Byte1 = SPI_ReceiveByte(&SPIC);
|
||||
* uint8_t Byte2 = SPI_ReceiveByte(&SPIC);
|
||||
* uint8_t Byte3 = SPI_ReceiveByte(&SPIC);
|
||||
*
|
||||
* // Send a byte, and store the received byte from the same transaction
|
||||
* uint8_t ResponseByte = SPI_TransferByte(&SPIC, 0xDC);
|
||||
* \endcode
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifndef __SPI_XMEGA_H__
|
||||
#define __SPI_XMEGA_H__
|
||||
|
||||
/* Includes: */
|
||||
#include "../../../Common/Common.h"
|
||||
|
||||
/* Enable C linkage for C++ Compilers: */
|
||||
#if defined(__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* Preprocessor Checks: */
|
||||
#if !defined(__INCLUDE_FROM_SPI_H)
|
||||
#error Do not include this file directly. Include LUFA/Drivers/Peripheral/SPI.h instead.
|
||||
#endif
|
||||
|
||||
/* Private Interface - For use in library only: */
|
||||
#if !defined(__DOXYGEN__)
|
||||
/* Macros: */
|
||||
#define SPI_USE_DOUBLESPEED SPI_CLK2X_bm
|
||||
#endif
|
||||
|
||||
/* Public Interface - May be used in end-application: */
|
||||
/* Macros: */
|
||||
/** \name SPI Prescaler Configuration Masks */
|
||||
//@{
|
||||
/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 2. */
|
||||
#define SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED
|
||||
|
||||
/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 4. */
|
||||
#define SPI_SPEED_FCPU_DIV_4 0
|
||||
|
||||
/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 8. */
|
||||
#define SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED | (1 << SPI_PRESCALER_gp))
|
||||
|
||||
/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 16. */
|
||||
#define SPI_SPEED_FCPU_DIV_16 (1 << SPI_PRESCALER_gp)
|
||||
|
||||
/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 32. */
|
||||
#define SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED | (2 << SPI_PRESCALER_gp))
|
||||
|
||||
/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 64. */
|
||||
#define SPI_SPEED_FCPU_DIV_64 (2 << SPI_PRESCALER_gp)
|
||||
|
||||
/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 128. */
|
||||
#define SPI_SPEED_FCPU_DIV_128 (3 << SPI_PRESCALER_gp)
|
||||
//@}
|
||||
|
||||
/** \name SPI SCK Polarity Configuration Masks */
|
||||
//@{
|
||||
/** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the rising edge. */
|
||||
#define SPI_SCK_LEAD_RISING 0
|
||||
|
||||
/** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the falling edge. */
|
||||
#define SPI_SCK_LEAD_FALLING SPI_MODE1_bm
|
||||
//@}
|
||||
|
||||
/** \name SPI Sample Edge Configuration Masks */
|
||||
//@{
|
||||
/** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should sampled on the leading edge. */
|
||||
#define SPI_SAMPLE_LEADING 0
|
||||
|
||||
/** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should be sampled on the trailing edge. */
|
||||
#define SPI_SAMPLE_TRAILING SPI_MODE0_bm
|
||||
//@}
|
||||
|
||||
/** \name SPI Data Ordering Configuration Masks */
|
||||
//@{
|
||||
/** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out MSB first. */
|
||||
#define SPI_ORDER_MSB_FIRST 0
|
||||
|
||||
/** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out LSB first. */
|
||||
#define SPI_ORDER_LSB_FIRST SPI_DORD_bm
|
||||
//@}
|
||||
|
||||
/** \name SPI Mode Configuration Masks */
|
||||
//@{
|
||||
/** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into slave mode. */
|
||||
#define SPI_MODE_SLAVE 0
|
||||
|
||||
/** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into master mode. */
|
||||
#define SPI_MODE_MASTER SPI_MASTER_bm
|
||||
//@}
|
||||
|
||||
/* Inline Functions: */
|
||||
/** Initializes the SPI subsystem, ready for transfers. Must be called before calling any other
|
||||
* SPI routines.
|
||||
*
|
||||
* \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
|
||||
* \param[in] SPIOptions SPI Options, a mask consisting of one of each of the \c SPI_SPEED_*,
|
||||
* \c SPI_SCK_*, \c SPI_SAMPLE_*, \c SPI_ORDER_* and \c SPI_MODE_* masks.
|
||||
*/
|
||||
static inline void SPI_Init(SPI_t* const SPI,
|
||||
const uint8_t SPIOptions)
|
||||
{
|
||||
SPI->CTRL = (SPIOptions | SPI_ENABLE_bm);
|
||||
}
|
||||
|
||||
/** Turns off the SPI driver, disabling and returning used hardware to their default configuration.
|
||||
*
|
||||
* \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
|
||||
*/
|
||||
static inline void SPI_Disable(SPI_t* const SPI)
|
||||
{
|
||||
SPI->CTRL &= ~SPI_ENABLE_bm;
|
||||
}
|
||||
|
||||
/** Retrieves the currently selected SPI mode, once the SPI interface has been configured.
|
||||
*
|
||||
* \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
|
||||
*
|
||||
* \return \ref SPI_MODE_MASTER if the interface is currently in SPI Master mode, \ref SPI_MODE_SLAVE otherwise
|
||||
*/
|
||||
static inline uint8_t SPI_GetCurrentMode(SPI_t* const SPI) ATTR_ALWAYS_INLINE;
|
||||
static inline uint8_t SPI_GetCurrentMode(SPI_t* const SPI)
|
||||
{
|
||||
return (SPI->CTRL & SPI_MASTER_bm);
|
||||
}
|
||||
|
||||
/** Sends and receives a byte through the SPI interface, blocking until the transfer is complete.
|
||||
*
|
||||
* \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
|
||||
* \param[in] Byte Byte to send through the SPI interface.
|
||||
*
|
||||
* \return Response byte from the attached SPI device.
|
||||
*/
|
||||
static inline uint8_t SPI_TransferByte(SPI_t* const SPI,
|
||||
const uint8_t Byte) ATTR_ALWAYS_INLINE;
|
||||
static inline uint8_t SPI_TransferByte(SPI_t* const SPI,
|
||||
const uint8_t Byte)
|
||||
{
|
||||
SPI->DATA = Byte;
|
||||
while (!(SPI->STATUS & SPI_IF_bm));
|
||||
return SPI->DATA;
|
||||
}
|
||||
|
||||
/** Sends a byte through the SPI interface, blocking until the transfer is complete. The response
|
||||
* byte sent to from the attached SPI device is ignored.
|
||||
*
|
||||
* \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
|
||||
* \param[in] Byte Byte to send through the SPI interface.
|
||||
*/
|
||||
static inline void SPI_SendByte(SPI_t* const SPI,
|
||||
const uint8_t Byte) ATTR_ALWAYS_INLINE;
|
||||
static inline void SPI_SendByte(SPI_t* const SPI,
|
||||
const uint8_t Byte)
|
||||
{
|
||||
SPI->DATA = Byte;
|
||||
while (!(SPI->STATUS & SPI_IF_bm));
|
||||
}
|
||||
|
||||
/** Sends a dummy byte through the SPI interface, blocking until the transfer is complete. The response
|
||||
* byte from the attached SPI device is returned.
|
||||
*
|
||||
* \param[in,out] SPI Pointer to the base of the SPI peripheral within the device.
|
||||
*
|
||||
* \return The response byte from the attached SPI device.
|
||||
*/
|
||||
static inline uint8_t SPI_ReceiveByte(SPI_t* const SPI) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
|
||||
static inline uint8_t SPI_ReceiveByte(SPI_t* const SPI)
|
||||
{
|
||||
SPI->DATA = 0;
|
||||
while (!(SPI->STATUS & SPI_IF_bm));
|
||||
return SPI->DATA;
|
||||
}
|
||||
|
||||
/* Disable C linkage for C++ Compilers: */
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
/** @} */
|
||||
|
||||
|
|
@ -0,0 +1,203 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2012.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.lufa-lib.org
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
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
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
* \brief Master SPI Mode Serial USART Peripheral Driver (XMEGA)
|
||||
*
|
||||
* On-chip Master SPI mode USART driver for the XMEGA AVR microcontrollers.
|
||||
*
|
||||
* \note This file should not be included directly. It is automatically included as needed by the SPI Master
|
||||
* Mode USART driver dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
|
||||
*/
|
||||
|
||||
/** \ingroup Group_SerialSPI
|
||||
* \defgroup Group_SerialSPI_XMEGA Master SPI Mode Serial USART Peripheral Driver (XMEGA)
|
||||
*
|
||||
* \section Sec_ModDescription Module Description
|
||||
* On-chip serial USART driver for the XMEGA AVR microcontrollers.
|
||||
*
|
||||
* \note This file should not be included directly. It is automatically included as needed by the ADC driver
|
||||
* dispatch header located in LUFA/Drivers/Peripheral/SerialSPI.h.
|
||||
*
|
||||
* \section Sec_ExampleUsage Example Usage
|
||||
* The following snippet is an example of how this module may be used within a typical
|
||||
* application.
|
||||
*
|
||||
* \code
|
||||
* // Initialize the Master SPI mode USART driver before first use, with 1Mbit baud
|
||||
* SerialSPI_Init(&USARTD0, (USART_SPI_SCK_LEAD_RISING | USART_SPI_SAMPLE_LEADING | USART_SPI_ORDER_MSB_FIRST), 1000000);
|
||||
*
|
||||
* // Send several bytes, ignoring the returned data
|
||||
* SerialSPI_SendByte(&USARTD0, 0x01);
|
||||
* SerialSPI_SendByte(&USARTD0, 0x02);
|
||||
* SerialSPI_SendByte(&USARTD0, 0x03);
|
||||
*
|
||||
* // Receive several bytes, sending a dummy 0x00 byte each time
|
||||
* uint8_t Byte1 = SerialSPI_ReceiveByte(&USARTD);
|
||||
* uint8_t Byte2 = SerialSPI_ReceiveByte(&USARTD);
|
||||
* uint8_t Byte3 = SerialSPI_ReceiveByte(&USARTD);
|
||||
*
|
||||
* // Send a byte, and store the received byte from the same transaction
|
||||
* uint8_t ResponseByte = SerialSPI_TransferByte(&USARTD0, 0xDC);
|
||||
* \endcode
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifndef __SERIAL_SPI_XMEGA_H__
|
||||
#define __SERIAL_SPI_XMEGA_H__
|
||||
|
||||
/* Includes: */
|
||||
#include "../../../Common/Common.h"
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
/* Enable C linkage for C++ Compilers: */
|
||||
#if defined(__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* Preprocessor Checks: */
|
||||
#if !defined(__INCLUDE_FROM_SERIAL_SPI_H)
|
||||
#error Do not include this file directly. Include LUFA/Drivers/Peripheral/Serial.h instead.
|
||||
#endif
|
||||
|
||||
/* Private Interface - For use in library only: */
|
||||
#if !defined(__DOXYGEN__)
|
||||
#define SERIAL_SPI_UBBRVAL(Baud) ((Baud < (F_CPU / 2)) ? ((F_CPU / (2 * Baud)) - 1) : 0)
|
||||
#endif
|
||||
|
||||
/* Public Interface - May be used in end-application: */
|
||||
/* Macros: */
|
||||
/** \name SPI SCK Polarity Configuration Masks */
|
||||
//@{
|
||||
/** SPI clock polarity mask for \ref SerialSPI_Init(). Indicates that the SCK should lead on the rising edge. */
|
||||
#define USART_SPI_SCK_LEAD_RISING 0
|
||||
//@}
|
||||
|
||||
/** \name SPI Sample Edge Configuration Masks */
|
||||
//@{
|
||||
/** SPI data sample mode mask for \ref SerialSPI_Init(). Indicates that the data should sampled on the leading edge. */
|
||||
#define USART_SPI_SAMPLE_LEADING 0
|
||||
|
||||
/** SPI data sample mode mask for \ref SerialSPI_Init(). Indicates that the data should be sampled on the trailing edge. */
|
||||
#define USART_SPI_SAMPLE_TRAILING USART_UPCHA_bm
|
||||
//@}
|
||||
|
||||
/** \name SPI Data Ordering Configuration Masks */
|
||||
//@{
|
||||
/** SPI data order mask for \ref SerialSPI_Init(). Indicates that data should be shifted out MSB first. */
|
||||
#define USART_SPI_ORDER_MSB_FIRST 0
|
||||
|
||||
/** SPI data order mask for \ref SerialSPI_Init(). Indicates that data should be shifted out LSB first. */
|
||||
#define USART_SPI_ORDER_LSB_FIRST USART_UDORD_bm
|
||||
//@}
|
||||
|
||||
/* Inline Functions: */
|
||||
/** Initialize the USART module in Master SPI mode.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] SPIOptions USART SPI Options, a mask consisting of one of each of the \c USART_SPI_SCK_*,
|
||||
* \c USART_SPI_SAMPLE_* and \c USART_SPI_ORDER_* masks.
|
||||
* \param[in] BaudRate SPI baud rate, in bits per second.
|
||||
*/
|
||||
static inline void SerialSPI_Init(USART_t* const USART,
|
||||
const uint8_t SPIOptions,
|
||||
const uint32_t BaudRate)
|
||||
{
|
||||
uint16_t BaudValue = SERIAL_SPI_UBBRVAL(BaudRate);
|
||||
|
||||
USART->BAUDCTRLB = (BaudValue >> 8);
|
||||
USART->BAUDCTRLA = (BaudValue & 0xFF);
|
||||
|
||||
USART->CTRLC = (USART_CMODE_MSPI_gc | SPIOptions);
|
||||
USART->CTRLB = (USART_RXEN_bm | USART_TXEN_bm);
|
||||
}
|
||||
|
||||
/** Turns off the USART driver, disabling and returning used hardware to their default configuration.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
*/
|
||||
static inline void SerialSPI_Disable(USART_t* const USART)
|
||||
{
|
||||
USART->CTRLA = 0;
|
||||
USART->CTRLB = 0;
|
||||
USART->CTRLC = 0;
|
||||
}
|
||||
|
||||
/** Sends and receives a byte through the USART SPI interface, blocking until the transfer is complete.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] DataByte Byte to send through the USART SPI interface.
|
||||
*
|
||||
* \return Response byte from the attached SPI device.
|
||||
*/
|
||||
static inline uint8_t SerialSPI_TransferByte(USART_t* const USART,
|
||||
const uint8_t DataByte)
|
||||
{
|
||||
USART->DATA = DataByte;
|
||||
while (!(USART->STATUS & USART_TXCIF_bm));
|
||||
USART->STATUS = USART_TXCIF_bm;
|
||||
return USART->DATA;
|
||||
}
|
||||
|
||||
/** Sends a byte through the USART SPI interface, blocking until the transfer is complete. The response
|
||||
* byte sent to from the attached SPI device is ignored.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] DataByte Byte to send through the USART SPI interface.
|
||||
*/
|
||||
static inline void SerialSPI_SendByte(USART_t* const USART,
|
||||
const uint8_t DataByte)
|
||||
{
|
||||
SerialSPI_TransferByte(USART, DataByte);
|
||||
}
|
||||
|
||||
/** Sends a dummy byte through the USART SPI interface, blocking until the transfer is complete. The response
|
||||
* byte from the attached SPI device is returned.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
*
|
||||
* \return The response byte from the attached SPI device.
|
||||
*/
|
||||
static inline uint8_t SerialSPI_ReceiveByte(USART_t* const USART)
|
||||
{
|
||||
return SerialSPI_TransferByte(USART, 0);
|
||||
}
|
||||
|
||||
/* Disable C linkage for C++ Compilers: */
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
/** @} */
|
||||
|
||||
|
|
@ -0,0 +1,122 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2012.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.lufa-lib.org
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
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
|
||||
this software.
|
||||
*/
|
||||
|
||||
#include "../../../Common/Common.h"
|
||||
#if (ARCH == ARCH_XMEGA)
|
||||
|
||||
#define __INCLUDE_FROM_SERIAL_C
|
||||
#include "../Serial.h"
|
||||
|
||||
FILE USARTSerialStream;
|
||||
|
||||
int Serial_putchar(char DataByte,
|
||||
FILE *Stream)
|
||||
{
|
||||
USART_t* USART = fdev_get_udata(Stream);
|
||||
|
||||
Serial_SendByte(USART, DataByte);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Serial_getchar(FILE *Stream)
|
||||
{
|
||||
USART_t* USART = fdev_get_udata(Stream);
|
||||
|
||||
if (!(Serial_IsCharReceived(USART)))
|
||||
return _FDEV_EOF;
|
||||
|
||||
return Serial_ReceiveByte(USART);
|
||||
}
|
||||
|
||||
int Serial_getchar_Blocking(FILE *Stream)
|
||||
{
|
||||
USART_t* USART = fdev_get_udata(Stream);
|
||||
|
||||
while (!(Serial_IsCharReceived(USART)));
|
||||
return Serial_ReceiveByte(USART);
|
||||
}
|
||||
|
||||
void Serial_SendString_P(USART_t* const USART,
|
||||
const char* FlashStringPtr)
|
||||
{
|
||||
uint8_t CurrByte;
|
||||
|
||||
while ((CurrByte = pgm_read_byte(FlashStringPtr)) != 0x00)
|
||||
{
|
||||
Serial_SendByte(USART, CurrByte);
|
||||
FlashStringPtr++;
|
||||
}
|
||||
}
|
||||
|
||||
void Serial_SendString(USART_t* const USART,
|
||||
const char* StringPtr)
|
||||
{
|
||||
uint8_t CurrByte;
|
||||
|
||||
while ((CurrByte = *StringPtr) != 0x00)
|
||||
{
|
||||
Serial_SendByte(USART, CurrByte);
|
||||
StringPtr++;
|
||||
}
|
||||
}
|
||||
|
||||
void Serial_SendData(USART_t* const USART,
|
||||
const uint8_t* Buffer,
|
||||
uint16_t Length)
|
||||
{
|
||||
while (Length--)
|
||||
Serial_SendByte(USART, *(Buffer++));
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,252 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2012.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.lufa-lib.org
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
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
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
* \brief Serial USART Peripheral Driver (XMEGA)
|
||||
*
|
||||
* On-chip serial USART driver for the XMEGA AVR microcontrollers.
|
||||
*
|
||||
* \note This file should not be included directly. It is automatically included as needed by the USART driver
|
||||
* dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
|
||||
*/
|
||||
|
||||
/** \ingroup Group_Serial
|
||||
* \defgroup Group_Serial_XMEGA Serial USART Peripheral Driver (XMEGA)
|
||||
*
|
||||
* \section Sec_ModDescription Module Description
|
||||
* On-chip serial USART driver for the XMEGA AVR microcontrollers.
|
||||
*
|
||||
* \note This file should not be included directly. It is automatically included as needed by the USART driver
|
||||
* dispatch header located in LUFA/Drivers/Peripheral/Serial.h.
|
||||
*
|
||||
* \section Sec_ExampleUsage Example Usage
|
||||
* The following snippet is an example of how this module may be used within a typical
|
||||
* application.
|
||||
*
|
||||
* \code
|
||||
* // Initialize the serial USART driver before first use, with 9600 baud (and no double-speed mode)
|
||||
* Serial_Init(&USARTD0, 9600, false);
|
||||
*
|
||||
* // Send a string through the USART
|
||||
* Serial_TxString(&USARTD0, "Test String\r\n");
|
||||
*
|
||||
* // Receive a byte through the USART
|
||||
* uint8_t DataByte = Serial_RxByte(&USARTD0);
|
||||
* \endcode
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifndef __SERIAL_XMEGA_H__
|
||||
#define __SERIAL_XMEGA_H__
|
||||
|
||||
/* Includes: */
|
||||
#include "../../../Common/Common.h"
|
||||
#include "../../Misc/TerminalCodes.h"
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
/* Enable C linkage for C++ Compilers: */
|
||||
#if defined(__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* Preprocessor Checks: */
|
||||
#if !defined(__INCLUDE_FROM_SERIAL_H) && !defined(__INCLUDE_FROM_SERIAL_C)
|
||||
#error Do not include this file directly. Include LUFA/Drivers/Peripheral/Serial.h instead.
|
||||
#endif
|
||||
|
||||
/* Private Interface - For use in library only: */
|
||||
#if !defined(__DOXYGEN__)
|
||||
/* External Variables: */
|
||||
extern FILE USARTSerialStream;
|
||||
|
||||
/* Function Prototypes: */
|
||||
int Serial_putchar(char DataByte,
|
||||
FILE *Stream);
|
||||
int Serial_getchar(FILE *Stream);
|
||||
int Serial_getchar_Blocking(FILE *Stream);
|
||||
#endif
|
||||
|
||||
/* Public Interface - May be used in end-application: */
|
||||
/* Macros: */
|
||||
/** Macro for calculating the baud value from a given baud rate when the \c U2X (double speed) bit is
|
||||
* not set.
|
||||
*
|
||||
* \param[in] Baud Target serial UART baud rate.
|
||||
*
|
||||
* \return Closest UBRR register value for the given UART frequency.
|
||||
*/
|
||||
#define SERIAL_UBBRVAL(Baud) ((((F_CPU / 16) + (Baud / 2)) / (Baud)) - 1)
|
||||
|
||||
/** Macro for calculating the baud value from a given baud rate when the \c U2X (double speed) bit is
|
||||
* set.
|
||||
*
|
||||
* \param[in] Baud Target serial UART baud rate.
|
||||
*
|
||||
* \return Closest UBRR register value for the given UART frequency.
|
||||
*/
|
||||
#define SERIAL_2X_UBBRVAL(Baud) ((((F_CPU / 8) + (Baud / 2)) / (Baud)) - 1)
|
||||
|
||||
/* Function Prototypes: */
|
||||
/** Transmits a given string located in program space (FLASH) through the USART.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] FlashStringPtr Pointer to a string located in program space.
|
||||
*/
|
||||
void Serial_SendString_P(USART_t* const USART,
|
||||
const char* FlashStringPtr) ATTR_NON_NULL_PTR_ARG(1);
|
||||
|
||||
/** Transmits a given string located in SRAM memory through the USART.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] StringPtr Pointer to a string located in SRAM space.
|
||||
*/
|
||||
void Serial_SendString(USART_t* const USART,
|
||||
const char* StringPtr) ATTR_NON_NULL_PTR_ARG(1);
|
||||
|
||||
/** Transmits a given buffer located in SRAM memory through the USART.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] Buffer Pointer to a buffer containing the data to send.
|
||||
* \param[in] Length Length of the data to send, in bytes.
|
||||
*/
|
||||
void Serial_SendData(USART_t* const USART,
|
||||
const uint8_t* Buffer, uint16_t Length) ATTR_NON_NULL_PTR_ARG(1);
|
||||
|
||||
/** 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, \c stdout
|
||||
* and \c 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.
|
||||
*/
|
||||
void Serial_CreateStream(FILE* Stream);
|
||||
|
||||
/** 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, \c stdout
|
||||
* and \c 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.
|
||||
*/
|
||||
void Serial_CreateBlockingStream(FILE* Stream);
|
||||
|
||||
/* Inline Functions: */
|
||||
/** Initializes the USART, ready for serial data transmission and reception. This initializes the interface to
|
||||
* standard 8-bit, no parity, 1 stop bit settings suitable for most applications.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] BaudRate Serial baud rate, in bits per second.
|
||||
* \param[in] DoubleSpeed Enables double speed mode when set, halving the sample time to double the baud rate.
|
||||
*/
|
||||
static inline void Serial_Init(USART_t* const USART,
|
||||
const uint32_t BaudRate,
|
||||
const bool DoubleSpeed)
|
||||
{
|
||||
uint16_t BaudValue = (DoubleSpeed ? SERIAL_2X_UBBRVAL(BaudRate) : SERIAL_UBBRVAL(BaudRate));
|
||||
|
||||
USART->BAUDCTRLB = (BaudValue >> 8);
|
||||
USART->BAUDCTRLA = (BaudValue & 0xFF);
|
||||
|
||||
USART->CTRLC = (USART_CMODE_ASYNCHRONOUS_gc | USART_PMODE_DISABLED_gc | USART_CHSIZE_8BIT_gc);
|
||||
USART->CTRLB = (USART_RXEN_bm | USART_TXEN_bm | (DoubleSpeed ? USART_CLK2X_bm : 0));
|
||||
}
|
||||
|
||||
/** Turns off the USART driver, disabling and returning used hardware to their default configuration.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
*/
|
||||
static inline void Serial_Disable(USART_t* const USART)
|
||||
{
|
||||
USART->CTRLA = 0;
|
||||
USART->CTRLB = 0;
|
||||
USART->CTRLC = 0;
|
||||
}
|
||||
|
||||
/** Indicates whether a character has been received through the USART.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
*
|
||||
* \return Boolean \c true if a character has been received, \c false otherwise.
|
||||
*/
|
||||
static inline bool Serial_IsCharReceived(USART_t* const USART) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
|
||||
static inline bool Serial_IsCharReceived(USART_t* const USART)
|
||||
{
|
||||
return ((USART->STATUS & USART_RXCIF_bm) ? true : false);
|
||||
}
|
||||
|
||||
/** Transmits a given byte through the USART.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
* \param[in] DataByte Byte to transmit through the USART.
|
||||
*/
|
||||
static inline void Serial_SendByte(USART_t* const USART,
|
||||
const char DataByte) ATTR_ALWAYS_INLINE;
|
||||
static inline void Serial_SendByte(USART_t* const USART,
|
||||
const char DataByte)
|
||||
{
|
||||
while (!(USART->STATUS & USART_DREIF_bm));
|
||||
USART->DATA = DataByte;
|
||||
}
|
||||
|
||||
/** Receives the next byte from the USART.
|
||||
*
|
||||
* \param[in,out] USART Pointer to the base of the USART peripheral within the device.
|
||||
*
|
||||
* \return Next byte received from the USART, or a negative value if no byte has been received.
|
||||
*/
|
||||
static inline int16_t Serial_ReceiveByte(USART_t* const USART) ATTR_ALWAYS_INLINE;
|
||||
static inline int16_t Serial_ReceiveByte(USART_t* const USART)
|
||||
{
|
||||
if (!(Serial_IsCharReceived(USART)))
|
||||
return -1;
|
||||
|
||||
USART->STATUS = USART_RXCIF_bm;
|
||||
return USART->DATA;
|
||||
}
|
||||
|
||||
/* Disable C linkage for C++ Compilers: */
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
/** @} */
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue