1 /* ----------------------------------------------------------------------------
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2 * ATMEL Microcontroller Software Support
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3 * ----------------------------------------------------------------------------
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4 * Copyright (c) 2008, Atmel Corporation
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6 * All rights reserved.
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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11 * - Redistributions of source code must retain the above copyright notice,
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12 * this list of conditions and the disclaimer below.
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14 * Atmel's name may not be used to endorse or promote products derived from
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15 * this software without specific prior written permission.
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17 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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20 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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23 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 * ----------------------------------------------------------------------------
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33 //------------------------------------------------------------------------------
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35 //------------------------------------------------------------------------------
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36 #define AT91C_CAN_TIMEOUT 100000
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38 #define AT91C_TEST_NOK 0
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39 #define AT91C_TEST_OK 1
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41 #define CAN_STATUS_SUCCESS 0
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42 #define CAN_STATUS_LOCKED 1
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43 #define CAN_STATUS_ABORTED 2
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44 #define CAN_STATUS_RESET 3
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46 #if defined (AT91C_BASE_CAN)
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47 #define AT91C_BASE_CAN0 AT91C_BASE_CAN
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49 #if defined (AT91C_ID_CAN)
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50 #define AT91C_ID_CAN0 AT91C_ID_CAN
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52 #if defined (AT91C_BASE_CAN_MB0)
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53 #define AT91C_BASE_CAN0_MB0 AT91C_BASE_CAN_MB0
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54 #define AT91C_BASE_CAN0_MB1 AT91C_BASE_CAN_MB1
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55 #define AT91C_BASE_CAN0_MB2 AT91C_BASE_CAN_MB2
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56 #define AT91C_BASE_CAN0_MB3 AT91C_BASE_CAN_MB3
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57 #define AT91C_BASE_CAN0_MB4 AT91C_BASE_CAN_MB4
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58 #define AT91C_BASE_CAN0_MB5 AT91C_BASE_CAN_MB5
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59 #define AT91C_BASE_CAN0_MB6 AT91C_BASE_CAN_MB6
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60 #define AT91C_BASE_CAN0_MB7 AT91C_BASE_CAN_MB7
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62 #if defined (AT91C_BASE_CAN_MB8)
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63 #define AT91C_BASE_CAN0_MB8 AT91C_BASE_CAN_MB8
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64 #define AT91C_BASE_CAN0_MB9 AT91C_BASE_CAN_MB9
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65 #define AT91C_BASE_CAN0_MB10 AT91C_BASE_CAN_MB10
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66 #define AT91C_BASE_CAN0_MB11 AT91C_BASE_CAN_MB11
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67 #define AT91C_BASE_CAN0_MB12 AT91C_BASE_CAN_MB12
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68 #define AT91C_BASE_CAN0_MB13 AT91C_BASE_CAN_MB13
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69 #define AT91C_BASE_CAN0_MB14 AT91C_BASE_CAN_MB14
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70 #define AT91C_BASE_CAN0_MB15 AT91C_BASE_CAN_MB15
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73 #define NUM_MAILBOX_MAX 16
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75 //------------------------------------------------------------------------------
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77 //------------------------------------------------------------------------------
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80 volatile unsigned char state;
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81 volatile unsigned char can_number;
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82 volatile unsigned char mailbox_number;
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83 volatile unsigned char test_can;
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84 volatile unsigned int mode_reg;
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85 volatile unsigned int acceptance_mask_reg;
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86 volatile unsigned int identifier;
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87 volatile unsigned int data_low_reg;
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88 volatile unsigned int data_high_reg;
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89 volatile unsigned int control_reg;
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90 volatile unsigned int mailbox_in_use;
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94 //------------------------------------------------------------------------------
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95 // Exported functions
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96 //------------------------------------------------------------------------------
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97 extern unsigned char CAN_Init( unsigned int baudrate,
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98 CanTransfer *canTransferRead,
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99 CanTransfer *canTransferWrite );
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100 extern void CAN_BasicTestSuite(void);
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101 extern void CAN_disable( void );
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102 extern void CAN_ResetAllMailbox( void );
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103 extern void CAN_ResetTransfer( CanTransfer *pTransfer );
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104 extern void CAN_InitMailboxRegisters( CanTransfer *pTransfer );
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105 extern unsigned char CAN_IsInIdle( CanTransfer *pTransfer );
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107 extern unsigned char CAN_Write( CanTransfer *pTransfer );
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108 extern unsigned char CAN_Read( CanTransfer *pTransfer );
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110 extern void CAN_BasicTestSuiteWithoutInterrupt( void );
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111 extern unsigned char CAN_IsInIdle( CanTransfer *pTransfer );
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