LPC1700CMSIS Standard Peripheral Firmware Library: CAN_Public_Functions

LPC1700CMSIS

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CAN_Public_Functions
[CAN]


Functions

void CAN_Init (LPC_CAN_TypeDef *CANx, uint32_t baudrate)
 Initialize CAN peripheral with given baudrate.
void CAN_DeInit (LPC_CAN_TypeDef *CANx)
 CAN deInit.
Status CAN_SendMsg (LPC_CAN_TypeDef *CANx, CAN_MSG_Type *CAN_Msg)
 Send message data.
Status CAN_ReceiveMsg (LPC_CAN_TypeDef *CANx, CAN_MSG_Type *CAN_Msg)
 Receive message data.
CAN_ERROR FCAN_ReadObj (LPC_CANAF_TypeDef *CANAFx, CAN_MSG_Type *CAN_Msg)
 Receive FullCAN Object.
uint32_t CAN_GetCTRLStatus (LPC_CAN_TypeDef *CANx, CAN_CTRL_STS_Type arg)
 Get CAN Control Status.
uint32_t CAN_GetCRStatus (LPC_CANCR_TypeDef *CANCRx, CAN_CR_STS_Type arg)
 Get CAN Central Status.
void CAN_ModeConfig (LPC_CAN_TypeDef *CANx, CAN_MODE_Type mode, FunctionalState NewState)
 Enable/Disable CAN Mode.
void CAN_SetBaudRate (LPC_CAN_TypeDef *CANx, uint32_t baudrate)
 Setting CAN baud rate (bps).
void CAN_SetAFMode (LPC_CANAF_TypeDef *CANAFx, CAN_AFMODE_Type AFMode)
 Setting Acceptance Filter mode.
CAN_ERROR CAN_SetupAFLUT (LPC_CANAF_TypeDef *CANAFx, AF_SectionDef *AFSection)
 Setup Acceptance Filter Look-Up Table.
CAN_ERROR CAN_LoadFullCANEntry (LPC_CAN_TypeDef *CANx, uint16_t id)
 Load FullCAN entry into AFLUT.
CAN_ERROR CAN_LoadExplicitEntry (LPC_CAN_TypeDef *CANx, uint32_t id, CAN_ID_FORMAT_Type format)
 Add Explicit ID into AF Look-Up Table dynamically.
CAN_ERROR CAN_LoadGroupEntry (LPC_CAN_TypeDef *CANx, uint32_t lowerID, uint32_t upperID, CAN_ID_FORMAT_Type format)
 Load Group entry into AFLUT.
CAN_ERROR CAN_RemoveEntry (AFLUT_ENTRY_Type EntryType, uint16_t position)
 Remove AFLUT entry (FullCAN entry and Explicit Standard entry).
void CAN_SetupCBS (CAN_INT_EN_Type arg, fnCANCbs_Type *pnCANCbs)
 Install interrupt call-back function.
void CAN_IRQCmd (LPC_CAN_TypeDef *CANx, CAN_INT_EN_Type arg, FunctionalState NewState)
 Enable/Disable CAN Interrupt.
void CAN_IntHandler (LPC_CAN_TypeDef *CANx)
 Standard CAN interrupt handler, this function will check all interrupt status of CAN channels, then execute the call back function if they're already installed.

Function Documentation

void CAN_DeInit ( LPC_CAN_TypeDef *  CANx  ) 

CAN deInit.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
Returns:
void

Definition at line 231 of file lpc17xx_can.c.

uint32_t CAN_GetCRStatus ( LPC_CANCR_TypeDef *  CANCRx,
CAN_CR_STS_Type  arg 
)

Get CAN Central Status.

Parameters:
[in] CANCRx point to LPC_CANCR_TypeDef
[in] arg,: type of CAN status to get from CAN Central status register Should be:
  • CANCR_TX_STS: Central CAN Tx Status
  • CANCR_RX_STS: Central CAN Rx Status
  • CANCR_MS: Central CAN Miscellaneous Status
Returns:
Current Central Status that you want to get value

Definition at line 1684 of file lpc17xx_can.c.

uint32_t CAN_GetCTRLStatus ( LPC_CAN_TypeDef *  CANx,
CAN_CTRL_STS_Type  arg 
)

Get CAN Control Status.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] arg,: type of CAN status to get from CAN status register Should be:
  • CANCTRL_GLOBAL_STS: CAN Global Status
  • CANCTRL_INT_CAP: CAN Interrupt and Capture
  • CANCTRL_ERR_WRN: CAN Error Warning Limit
  • CANCTRL_STS: CAN Control Status
Returns:
Current Control Status that you want to get value

Definition at line 1654 of file lpc17xx_can.c.

void CAN_Init ( LPC_CAN_TypeDef *  CANx,
uint32_t  baudrate 
)

Initialize CAN peripheral with given baudrate.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] baudrate,: the value of CAN baudrate will be set (bps)
Returns:
void

Definition at line 175 of file lpc17xx_can.c.

void CAN_IntHandler ( LPC_CAN_TypeDef *  CANx  ) 

Standard CAN interrupt handler, this function will check all interrupt status of CAN channels, then execute the call back function if they're already installed.

Parameters:
[in] CANx point to CAN peripheral selected, should be: CAN1 or CAN2
Returns:
None

Definition at line 1891 of file lpc17xx_can.c.

void CAN_IRQCmd ( LPC_CAN_TypeDef *  CANx,
CAN_INT_EN_Type  arg,
FunctionalState  NewState 
)

Enable/Disable CAN Interrupt.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] arg,: type of CAN interrupt that you want to enable/disable Should be:
  • CANINT_RIE: CAN Receiver Interrupt Enable
  • CANINT_TIE1: CAN Transmit Interrupt Enable
  • CANINT_EIE: CAN Error Warning Interrupt Enable
  • CANINT_DOIE: CAN Data Overrun Interrupt Enable
  • CANINT_WUIE: CAN Wake-Up Interrupt Enable
  • CANINT_EPIE: CAN Error Passive Interrupt Enable
  • CANINT_ALIE: CAN Arbitration Lost Interrupt Enable
  • CANINT_BEIE: CAN Bus Error Interrupt Enable
  • CANINT_IDIE: CAN ID Ready Interrupt Enable
  • CANINT_TIE2: CAN Transmit Interrupt Enable for Buffer2
  • CANINT_TIE3: CAN Transmit Interrupt Enable for Buffer3
  • CANINT_FCE: FullCAN Interrupt Enable
[in] NewState,: New state of this function, should be:
  • ENABLE
  • DISABLE
Returns:
none

Definition at line 1725 of file lpc17xx_can.c.

CAN_ERROR CAN_LoadExplicitEntry ( LPC_CAN_TypeDef *  CANx,
uint32_t  id,
CAN_ID_FORMAT_Type  format 
)

Add Explicit ID into AF Look-Up Table dynamically.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] id,: The ID of entry will be added
[in] format,: is the type of ID Frame Format, should be:
  • STD_ID_FORMAT: 11-bit ID value
  • EXT_ID_FORMAT: 29-bit ID value
Returns:
CAN Error, could be:
  • CAN_OBJECTS_FULL_ERROR: No more rx or tx objects available
  • CAN_ID_EXIT_ERROR: ID exited in table
  • CAN_OK: ID is added into table successfully

Definition at line 523 of file lpc17xx_can.c.

CAN_ERROR CAN_LoadFullCANEntry ( LPC_CAN_TypeDef *  CANx,
uint16_t  id 
)

Load FullCAN entry into AFLUT.

Parameters:
[in] CANx,: CAN peripheral selected, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] id,: identifier of entry that will be added
Returns:
CAN_ERROR, could be:
  • CAN_OK: loading is successful
  • CAN_ID_EXIT_ERROR: ID exited in FullCAN Section
  • CAN_OBJECTS_FULL_ERROR: no more space available

Definition at line 732 of file lpc17xx_can.c.

CAN_ERROR CAN_LoadGroupEntry ( LPC_CAN_TypeDef *  CANx,
uint32_t  lowerID,
uint32_t  upperID,
CAN_ID_FORMAT_Type  format 
)

Load Group entry into AFLUT.

Parameters:
[in] CANx,: CAN peripheral selected, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] lowerID,upperID,: lower and upper identifier of entry
[in] format,: type of ID format, should be:
  • STD_ID_FORMAT: Standard ID format (11-bit value)
  • EXT_ID_FORMAT: Extended ID format (29-bit value)
Returns:
CAN_ERROR, could be:
  • CAN_OK: loading is successful
  • CAN_CONFLICT_ID_ERROR: Conflict ID occurs
  • CAN_OBJECTS_FULL_ERROR: no more space available

Definition at line 918 of file lpc17xx_can.c.

void CAN_ModeConfig ( LPC_CAN_TypeDef *  CANx,
CAN_MODE_Type  mode,
FunctionalState  NewState 
)

Enable/Disable CAN Mode.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] mode,: type of CAN mode that you want to enable/disable, should be:
  • CAN_OPERATING_MODE: Normal Operating Mode
  • CAN_RESET_MODE: Reset Mode
  • CAN_LISTENONLY_MODE: Listen Only Mode
  • CAN_SELFTEST_MODE: Self Test Mode
  • CAN_TXPRIORITY_MODE: Transmit Priority Mode
  • CAN_SLEEP_MODE: Sleep Mode
  • CAN_RXPOLARITY_MODE: Receive Polarity Mode
  • CAN_TEST_MODE: Test Mode
[in] NewState,: New State of this function, should be:
  • ENABLE
  • DISABLE
Returns:
none

Definition at line 1827 of file lpc17xx_can.c.

Status CAN_ReceiveMsg ( LPC_CAN_TypeDef *  CANx,
CAN_MSG_Type *  CAN_Msg 
)

Receive message data.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] CAN_Msg point to the CAN_MSG_Type Struct, it will contain received message information such as: ID, DLC, RTR, ID Format
Returns:
Status:
  • SUCCESS: receive message successfully
  • ERROR: receive message unsuccessfully

Definition at line 1497 of file lpc17xx_can.c.

CAN_ERROR CAN_RemoveEntry ( AFLUT_ENTRY_Type  EntryType,
uint16_t  position 
)

Remove AFLUT entry (FullCAN entry and Explicit Standard entry).

Parameters:
[in] EntryType,: the type of entry that want to remove, should be:
  • FULLCAN_ENTRY
  • EXPLICIT_STANDARD_ENTRY
  • GROUP_STANDARD_ENTRY
  • EXPLICIT_EXTEND_ENTRY
  • GROUP_EXTEND_ENTRY
[in] position,: the position of this entry in its section Note: the first position is 0
Returns:
CAN_ERROR, could be:
  • CAN_OK: removing is successful
  • CAN_ENTRY_NOT_EXIT_ERROR: entry want to remove is not exit

Definition at line 1098 of file lpc17xx_can.c.

Status CAN_SendMsg ( LPC_CAN_TypeDef *  CANx,
CAN_MSG_Type *  CAN_Msg 
)

Send message data.

Parameters:
[in] CANx pointer to LPC_CAN_TypeDef, should be:
  • CAN1: CAN 1
  • CAN2: CAN 2
[in] CAN_Msg point to the CAN_MSG_Type Structure, it contains message information such as: ID, DLC, RTR, ID Format
Returns:
Status:
  • SUCCESS: send message successfully
  • ERROR: send message unsuccessfully

Definition at line 1338 of file lpc17xx_can.c.

void CAN_SetAFMode ( LPC_CANAF_TypeDef *  CANAFx,
CAN_AFMODE_Type  AFMode 
)

Setting Acceptance Filter mode.

Parameters:
[in] CANAFx point to LPC_CANAF_TypeDef object, should be: CANAF
[in] AFMode,: type of AF mode that you want to set, should be:
  • CAN_Normal: Normal mode
  • CAN_AccOff: Acceptance Filter Off Mode
  • CAN_AccBP: Acceptance Fileter Bypass Mode
  • CAN_eFCAN: FullCAN Mode Enhancement
Returns:
none

Definition at line 1786 of file lpc17xx_can.c.

void CAN_SetBaudRate ( LPC_CAN_TypeDef *  CANx,
uint32_t  baudrate 
)

Setting CAN baud rate (bps).

Parameters:
[in] CANx point to LPC_CAN_TypeDef object, should be:
  • CAN1
  • CAN2
[in] baudrate is the baud rate value will be set
Returns:
None

Definition at line 119 of file lpc17xx_can.c.

CAN_ERROR CAN_SetupAFLUT ( LPC_CANAF_TypeDef *  CANAFx,
AF_SectionDef *  AFSection 
)

Setup Acceptance Filter Look-Up Table.

Parameters:
[in] CANAFx pointer to LPC_CANAF_TypeDef, should be: CANAF
[in] AFSection the pointer to AF_SectionDef struct It contain information about 5 sections will be install in AFLUT
Returns:
CAN Error could be:
  • CAN_OBJECTS_FULL_ERROR: No more rx or tx objects available
  • CAN_AF_ENTRY_ERROR: table error-violation of ascending numerical order
  • CAN_OK: ID is added into table successfully

Definition at line 256 of file lpc17xx_can.c.

void CAN_SetupCBS ( CAN_INT_EN_Type  arg,
fnCANCbs_Type *  pnCANCbs 
)

Install interrupt call-back function.

Parameters:
[in] arg,: CAN interrupt type, should be:
  • CANINT_RIE: CAN Receiver Interrupt Enable
  • CANINT_TIE1: CAN Transmit Interrupt Enable
  • CANINT_EIE: CAN Error Warning Interrupt Enable
  • CANINT_DOIE: CAN Data Overrun Interrupt Enable
  • CANINT_WUIE: CAN Wake-Up Interrupt Enable
  • CANINT_EPIE: CAN Error Passive Interrupt Enable
  • CANINT_ALIE: CAN Arbitration Lost Interrupt Enable
  • CANINT_BEIE: CAN Bus Error Interrupt Enable
  • CANINT_IDIE: CAN ID Ready Interrupt Enable
  • CANINT_TIE2: CAN Transmit Interrupt Enable for Buffer2
  • CANINT_TIE3: CAN Transmit Interrupt Enable for Buffer3
  • CANINT_FCE: FullCAN Interrupt Enable
[in] pnCANCbs,: pointer point to call-back function
Returns:
None

Definition at line 1771 of file lpc17xx_can.c.

CAN_ERROR FCAN_ReadObj ( LPC_CANAF_TypeDef *  CANAFx,
CAN_MSG_Type *  CAN_Msg 
)

Receive FullCAN Object.

Parameters:
[in] CANAFx,: CAN Acceptance Filter register, should be LPC_CANAF
[in] CAN_Msg point to the CAN_MSG_Type Struct, it will contain received message information such as: ID, DLC, RTR, ID Format
Returns:
CAN_ERROR, could be:
  • CAN_FULL_OBJ_NOT_RCV: FullCAN Object is not be received
  • CAN_OK: Received FullCAN Object successful

Definition at line 1563 of file lpc17xx_can.c.

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