can_common.h

最新版IAR FOR ARM（EWARM）5.11中的代码例子

//*****************************************************************************
//
// can_common.h - Holds the common definitions for the CAN portion of the
//                quick start application.
//
// Copyright (c) 2007 Luminary Micro, Inc.  All rights reserved.
// 
// Software License Agreement
// 
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
// 
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws.  All rights are reserved.  You may not combine
// this software with "viral" open-source software in order to form a larger
// program.  Any use in violation of the foregoing restrictions may subject
// the user to criminal sanctions under applicable laws, as well as to civil
// liability for the breach of the terms and conditions of this license.
// 
// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
// 
// This is part of revision 1952 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************

//****************************************************************************
//
// These is the valid 4 byte response to a ping request.
//
//****************************************************************************
#define CURRENT_VERSION         0x00000001

//****************************************************************************
//
// This is the message identifier to use for receiving button update
// requestes.
//
//****************************************************************************
#define MSGOBJ_ID_BUTTON        0x10

//****************************************************************************
//
// This is the message identifier to use for receiving LED update requests
// from the host.
//
//****************************************************************************
#define MSGOBJ_ID_LED           0x12

//****************************************************************************
//
// This is the message identifier to use for sending data in the form of
// commmands or command responses.
//
//****************************************************************************
#define MSGOBJ_ID_DATA_0        0x20

//****************************************************************************
//
// This is the message identifier to use for receiving data in the form of
// commmands or command responses.
//
//****************************************************************************
#define MSGOBJ_ID_DATA_1        0x21

//*****************************************************************************
//
// The index into CANBitClkSettings to use to get the 125K baud clock
// settings.
//
//*****************************************************************************
#define CANBAUD_125K            0

//*****************************************************************************
//
// The index into CANBitClkSettings to use to get the 250K baud clock
// settings.
//
//*****************************************************************************
#define CANBAUD_250K            1

//*****************************************************************************
//
// The index into CANBitClkSettings to use to get the 500K baud clock
// settings.
//
//*****************************************************************************
#define CANBAUD_500K            2

//*****************************************************************************
//
// The index into CANBitClkSettings to use to get the 1M baud clock
// settings.
//
//*****************************************************************************
#define CANBAUD_1M              3

//*****************************************************************************
//
// This structure holds the static defitions used to configure the CAN
// controller bit clock in the proper state given a requested setting.
//
//*****************************************************************************
tCANBitClkParms CANBitClkSettings[] =
{
    {9,6,4,4},  // CANBAUD_125K
    {5,2,2,4},  // CANBAUD_250K
    {5,2,2,2},  // CANBAUD_500K
    {5,2,2,1}   // CANBAUD_1M
};

//****************************************************************************
//
// This is the command used to get the firmware version.
//
//****************************************************************************
#define CMD_GET_VERSION         0x01

//****************************************************************************
//
// This event indicates that a button was pressed, it should be followed by
// the number of the button that was pressed.
//
//****************************************************************************
#define EVENT_BUTTON_PRESS      0x10

//****************************************************************************
//
// This event indicates that a button was pressed, it should be followed by
// the number of the button that was released.
//
//****************************************************************************
#define EVENT_BUTTON_RELEASED   0x11

//****************************************************************************
//
// This is the identifier for the target boards up button.
//
//****************************************************************************
#define TARGET_BUTTON_UP        0

//****************************************************************************
//
// This is the identifier for the target boards down button.
//
//****************************************************************************
#define TARGET_BUTTON_DN        1

//****************************************************************************
//
// This is the maximum level for the LED brightness on the target board. The
// value can range from 0 to MAX_LED_BRIGHTNESS.
//
//****************************************************************************
#define MAX_LED_BRIGHTNESS      1

//*****************************************************************************
//
// The upper bit of the brightness level indicates that the LED should flash
// once mode and not a remain in a contant on or off state.
//
//*****************************************************************************
#define LED_FLASH_ONCE          0x80

//*****************************************************************************
//
// This mask is used to get the actual LED level from the value sent by LED
// brightness commands.
//
//*****************************************************************************
#define LED_FLASH_VALUE_MASK    0x7f