Delete STM32 Standard Peripheral Library.

1 files changed, 0 insertions, 907 deletions

diff --git a/stm32lib/src/stm32f10x_can.c b/stm32lib/src/stm32f10x_can.c
deleted file mode 100644
index afb472d..0000000
--- a/stm32lib/src/stm32f10x_can.c
+++ /dev/null
@@ -1,907 +0,0 @@
-/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************

-* File Name          : stm32f10x_can.c

-* Author             : MCD Application Team

-* Version            : V2.0.2

-* Date               : 07/11/2008

-* Description        : This file provides all the CAN firmware functions.

-********************************************************************************

-* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS

-* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.

-* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,

-* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE

-* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING

-* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.

-*******************************************************************************/

-

-/* Includes ------------------------------------------------------------------*/

-#include "stm32f10x_can.h"

-#include "stm32f10x_rcc.h"

-

-/* Private typedef -----------------------------------------------------------*/

-

-/* Private define ------------------------------------------------------------*/

-/* CAN Master Control Register bits */

-#define CAN_MCR_INRQ     ((u32)0x00000001) /* Initialization request */

-#define CAN_MCR_SLEEP    ((u32)0x00000002) /* Sleep mode request */

-#define CAN_MCR_TXFP     ((u32)0x00000004) /* Transmit FIFO priority */

-#define CAN_MCR_RFLM     ((u32)0x00000008) /* Receive FIFO locked mode */

-#define CAN_MCR_NART     ((u32)0x00000010) /* No automatic retransmission */

-#define CAN_MCR_AWUM     ((u32)0x00000020) /* Automatic wake up mode */

-#define CAN_MCR_ABOM     ((u32)0x00000040) /* Automatic bus-off management */

-#define CAN_MCR_TTCM     ((u32)0x00000080) /* time triggered communication */

-

-/* CAN Master Status Register bits */

-#define CAN_MSR_INAK     ((u32)0x00000001)    /* Initialization acknowledge */

-#define CAN_MSR_WKUI     ((u32)0x00000008)    /* Wake-up interrupt */

-#define CAN_MSR_SLAKI    ((u32)0x00000010)    /* Sleep acknowledge interrupt */

-

-/* CAN Transmit Status Register bits */

-#define CAN_TSR_RQCP0    ((u32)0x00000001)    /* Request completed mailbox0 */

-#define CAN_TSR_TXOK0    ((u32)0x00000002)    /* Transmission OK of mailbox0 */

-#define CAN_TSR_ABRQ0    ((u32)0x00000080)    /* Abort request for mailbox0 */

-#define CAN_TSR_RQCP1    ((u32)0x00000100)    /* Request completed mailbox1 */

-#define CAN_TSR_TXOK1    ((u32)0x00000200)    /* Transmission OK of mailbox1 */

-#define CAN_TSR_ABRQ1    ((u32)0x00008000)    /* Abort request for mailbox1 */

-#define CAN_TSR_RQCP2    ((u32)0x00010000)    /* Request completed mailbox2 */

-#define CAN_TSR_TXOK2    ((u32)0x00020000)    /* Transmission OK of mailbox2 */

-#define CAN_TSR_ABRQ2    ((u32)0x00800000)    /* Abort request for mailbox2 */

-#define CAN_TSR_TME0     ((u32)0x04000000)    /* Transmit mailbox 0 empty */

-#define CAN_TSR_TME1     ((u32)0x08000000)    /* Transmit mailbox 1 empty */

-#define CAN_TSR_TME2     ((u32)0x10000000)    /* Transmit mailbox 2 empty */

-

-/* CAN Receive FIFO 0 Register bits */

-#define CAN_RF0R_FULL0   ((u32)0x00000008)    /* FIFO 0 full */

-#define CAN_RF0R_FOVR0   ((u32)0x00000010)    /* FIFO 0 overrun */

-#define CAN_RF0R_RFOM0   ((u32)0x00000020)    /* Release FIFO 0 output mailbox */

-

-/* CAN Receive FIFO 1 Register bits */

-#define CAN_RF1R_FULL1   ((u32)0x00000008)    /* FIFO 1 full */

-#define CAN_RF1R_FOVR1   ((u32)0x00000010)    /* FIFO 1 overrun */

-#define CAN_RF1R_RFOM1   ((u32)0x00000020)    /* Release FIFO 1 output mailbox */

-

-/* CAN Error Status Register bits */

-#define CAN_ESR_EWGF     ((u32)0x00000001)    /* Error warning flag */

-#define CAN_ESR_EPVF     ((u32)0x00000002)    /* Error passive flag */

-#define CAN_ESR_BOFF     ((u32)0x00000004)    /* Bus-off flag */

-

-/* CAN Mailbox Transmit Request */

-#define CAN_TMIDxR_TXRQ    ((u32)0x00000001) /* Transmit mailbox request */

-

-/* CAN Filter Master Register bits */

-#define CAN_FMR_FINIT ((u32)0x00000001) /* Filter init mode */

-

-

-/* Private macro -------------------------------------------------------------*/

-/* Private variables ---------------------------------------------------------*/

-/* Private function prototypes -----------------------------------------------*/

-static ITStatus CheckITStatus(u32 CAN_Reg, u32 It_Bit);

-

-/* Private functions ---------------------------------------------------------*/

-/*******************************************************************************

-* Function Name  : CAN_DeInit

-* Description    : Deinitializes the CAN peripheral registers to their default

-*                  reset values.

-* Input          : None.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_DeInit(void)

-{

-  /* Enable CAN reset state */

-  RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN, ENABLE);

-  /* Release CAN from reset state */

-  RCC_APB1PeriphResetCmd(RCC_APB1Periph_CAN, DISABLE);

-}

-

-/*******************************************************************************

-* Function Name  : CAN_Init

-* Description    : Initializes the CAN peripheral according to the specified

-*                  parameters in the CAN_InitStruct.

-* Input          : CAN_InitStruct: pointer to a CAN_InitTypeDef structure that

-                   contains the configuration information for the CAN peripheral.

-* Output         : None.

-* Return         : Constant indicates initialization succeed which will be 

-*                  CANINITFAILED or CANINITOK.

-*******************************************************************************/

-u8 CAN_Init(CAN_InitTypeDef* CAN_InitStruct)

-{

-  u8 InitStatus = 0;

-  u16 WaitAck = 0;

-

-  /* Check the parameters */

-  assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_TTCM));

-  assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_ABOM));

-  assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_AWUM));

-  assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_NART));

-  assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_RFLM));

-  assert_param(IS_FUNCTIONAL_STATE(CAN_InitStruct->CAN_TXFP));

-  assert_param(IS_CAN_MODE(CAN_InitStruct->CAN_Mode));

-  assert_param(IS_CAN_SJW(CAN_InitStruct->CAN_SJW));

-  assert_param(IS_CAN_BS1(CAN_InitStruct->CAN_BS1));

-  assert_param(IS_CAN_BS2(CAN_InitStruct->CAN_BS2));

-  assert_param(IS_CAN_PRESCALER(CAN_InitStruct->CAN_Prescaler));

-

-  /* Request initialisation */

-  CAN->MCR = CAN_MCR_INRQ;

-

-  /* ...and check acknowledged */

-  if ((CAN->MSR & CAN_MSR_INAK) == 0)

-  {

-    InitStatus = CANINITFAILED;

-  }

-  else

-  {

-    /* Set the time triggered communication mode */

-    if (CAN_InitStruct->CAN_TTCM == ENABLE)

-    {

-      CAN->MCR |= CAN_MCR_TTCM;

-    }

-    else

-    {

-      CAN->MCR &= ~CAN_MCR_TTCM;

-    }

-

-    /* Set the automatic bus-off management */

-    if (CAN_InitStruct->CAN_ABOM == ENABLE)

-    {

-      CAN->MCR |= CAN_MCR_ABOM;

-    }

-    else

-    {

-      CAN->MCR &= ~CAN_MCR_ABOM;

-    }

-

-    /* Set the automatic wake-up mode */

-    if (CAN_InitStruct->CAN_AWUM == ENABLE)

-    {

-      CAN->MCR |= CAN_MCR_AWUM;

-    }

-    else

-    {

-      CAN->MCR &= ~CAN_MCR_AWUM;

-    }

-

-    /* Set the no automatic retransmission */

-    if (CAN_InitStruct->CAN_NART == ENABLE)

-    {

-      CAN->MCR |= CAN_MCR_NART;

-    }

-    else

-    {

-      CAN->MCR &= ~CAN_MCR_NART;

-    }

-

-    /* Set the receive FIFO locked mode */

-    if (CAN_InitStruct->CAN_RFLM == ENABLE)

-    {

-      CAN->MCR |= CAN_MCR_RFLM;

-    }

-    else

-    {

-      CAN->MCR &= ~CAN_MCR_RFLM;

-    }

-

-    /* Set the transmit FIFO priority */

-    if (CAN_InitStruct->CAN_TXFP == ENABLE)

-    {

-      CAN->MCR |= CAN_MCR_TXFP;

-    }

-    else

-    {

-      CAN->MCR &= ~CAN_MCR_TXFP;

-    }

-

-    /* Set the bit timing register */

-    CAN->BTR = (u32)((u32)CAN_InitStruct->CAN_Mode << 30) | ((u32)CAN_InitStruct->CAN_SJW << 24) |

-               ((u32)CAN_InitStruct->CAN_BS1 << 16) | ((u32)CAN_InitStruct->CAN_BS2 << 20) |

-               ((u32)CAN_InitStruct->CAN_Prescaler - 1);

-

-    InitStatus = CANINITOK;

-

-    /* Request leave initialisation */

-    CAN->MCR &= ~CAN_MCR_INRQ;

-

-    /* Wait the acknowledge */

-    for(WaitAck = 0x400; WaitAck > 0x0; WaitAck--)

-    {

-    }

-    

-    /* ...and check acknowledged */

-    if ((CAN->MSR & CAN_MSR_INAK) == CAN_MSR_INAK)

-    {

-      InitStatus = CANINITFAILED;

-    }

-  }

-

-  /* At this step, return the status of initialization */

-  return InitStatus;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_FilterInit

-* Description    : Initializes the CAN peripheral according to the specified

-*                  parameters in the CAN_FilterInitStruct.

-* Input          : CAN_FilterInitStruct: pointer to a CAN_FilterInitTypeDef

-*                  structure that contains the configuration information.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_FilterInit(CAN_FilterInitTypeDef* CAN_FilterInitStruct)

-{

-  u16 FilterNumber_BitPos = 0;

-

-  /* Check the parameters */

-  assert_param(IS_CAN_FILTER_NUMBER(CAN_FilterInitStruct->CAN_FilterNumber));

-  assert_param(IS_CAN_FILTER_MODE(CAN_FilterInitStruct->CAN_FilterMode));

-  assert_param(IS_CAN_FILTER_SCALE(CAN_FilterInitStruct->CAN_FilterScale));

-  assert_param(IS_CAN_FILTER_FIFO(CAN_FilterInitStruct->CAN_FilterFIFOAssignment));

-  assert_param(IS_FUNCTIONAL_STATE(CAN_FilterInitStruct->CAN_FilterActivation));

-

-  FilterNumber_BitPos = 

-  (u16)((u16)0x0001 << ((u16)CAN_FilterInitStruct->CAN_FilterNumber));

-

-  /* Initialisation mode for the filter */

-  CAN->FMR |= CAN_FMR_FINIT;

-

-  /* Filter Deactivation */

-  CAN->FA1R &= ~(u32)FilterNumber_BitPos;

-

-  /* Filter Scale */

-  if (CAN_FilterInitStruct->CAN_FilterScale == CAN_FilterScale_16bit)

-  {

-    /* 16-bit scale for the filter */

-    CAN->FS1R &= ~(u32)FilterNumber_BitPos;

-

-    /* First 16-bit identifier and First 16-bit mask */

-    /* Or First 16-bit identifier and Second 16-bit identifier */

-    CAN->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR1 = 

-    ((u32)((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterMaskIdLow) << 16) |

-        ((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterIdLow);

-

-    /* Second 16-bit identifier and Second 16-bit mask */

-    /* Or Third 16-bit identifier and Fourth 16-bit identifier */

-    CAN->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR2 = 

-    ((u32)((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterMaskIdHigh) << 16) |

-        ((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterIdHigh);

-  }

-  if (CAN_FilterInitStruct->CAN_FilterScale == CAN_FilterScale_32bit)

-  {

-    /* 32-bit scale for the filter */

-    CAN->FS1R |= FilterNumber_BitPos;

-

-    /* 32-bit identifier or First 32-bit identifier */

-    CAN->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR1 = 

-    ((u32)((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterIdHigh) << 16) |

-        ((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterIdLow);

-

-    /* 32-bit mask or Second 32-bit identifier */

-    CAN->sFilterRegister[CAN_FilterInitStruct->CAN_FilterNumber].FR2 = 

-    ((u32)((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterMaskIdHigh) << 16) |

-        ((u32)0x0000FFFF & CAN_FilterInitStruct->CAN_FilterMaskIdLow);

-

-  }

-

-  /* Filter Mode */

-  if (CAN_FilterInitStruct->CAN_FilterMode == CAN_FilterMode_IdMask)

-  {

-    /*Id/Mask mode for the filter*/

-    CAN->FM1R &= ~(u32)FilterNumber_BitPos;

-  }

-  else /* CAN_FilterInitStruct->CAN_FilterMode == CAN_FilterMode_IdList */

-  {

-    /*Identifier list mode for the filter*/

-    CAN->FM1R |= (u32)FilterNumber_BitPos;

-  }

-

-  /* Filter FIFO assignment */

-  if (CAN_FilterInitStruct->CAN_FilterFIFOAssignment == CAN_FilterFIFO0)

-  {

-    /* FIFO 0 assignation for the filter */

-    CAN->FFA1R &= ~(u32)FilterNumber_BitPos;

-  }

-  if (CAN_FilterInitStruct->CAN_FilterFIFOAssignment == CAN_FilterFIFO1)

-  {

-    /* FIFO 1 assignation for the filter */

-    CAN->FFA1R |= (u32)FilterNumber_BitPos;

-  }

-  

-  /* Filter activation */

-  if (CAN_FilterInitStruct->CAN_FilterActivation == ENABLE)

-  {

-    CAN->FA1R |= FilterNumber_BitPos;

-  }

-

-  /* Leave the initialisation mode for the filter */

-  CAN->FMR &= ~CAN_FMR_FINIT;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_StructInit

-* Description    : Fills each CAN_InitStruct member with its default value.

-* Input          : CAN_InitStruct: pointer to a CAN_InitTypeDef structure which

-*                  will be initialized.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct)

-{

-  /* Reset CAN init structure parameters values */

-

-  /* Initialize the time triggered communication mode */

-  CAN_InitStruct->CAN_TTCM = DISABLE;

-

-  /* Initialize the automatic bus-off management */

-  CAN_InitStruct->CAN_ABOM = DISABLE;

-

-  /* Initialize the automatic wake-up mode */

-  CAN_InitStruct->CAN_AWUM = DISABLE;

-

-  /* Initialize the no automatic retransmission */

-  CAN_InitStruct->CAN_NART = DISABLE;

-

-  /* Initialize the receive FIFO locked mode */

-  CAN_InitStruct->CAN_RFLM = DISABLE;

-

-  /* Initialize the transmit FIFO priority */

-  CAN_InitStruct->CAN_TXFP = DISABLE;

-

-  /* Initialize the CAN_Mode member */

-  CAN_InitStruct->CAN_Mode = CAN_Mode_Normal;

-

-  /* Initialize the CAN_SJW member */

-  CAN_InitStruct->CAN_SJW = CAN_SJW_1tq;

-

-  /* Initialize the CAN_BS1 member */

-  CAN_InitStruct->CAN_BS1 = CAN_BS1_4tq;

-

-  /* Initialize the CAN_BS2 member */

-  CAN_InitStruct->CAN_BS2 = CAN_BS2_3tq;

-

-  /* Initialize the CAN_Prescaler member */

-  CAN_InitStruct->CAN_Prescaler = 1;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_ITConfig

-* Description    : Enables or disables the specified CAN interrupts.

-* Input          : - CAN_IT: specifies the CAN interrupt sources to be enabled or

-*                    disabled.

-*                    This parameter can be: CAN_IT_TME, CAN_IT_FMP0, CAN_IT_FF0,

-*                                           CAN_IT_FOV0, CAN_IT_FMP1, CAN_IT_FF1,

-*                                           CAN_IT_FOV1, CAN_IT_EWG, CAN_IT_EPV,

-*                                           CAN_IT_LEC, CAN_IT_ERR, CAN_IT_WKU or

-*                                           CAN_IT_SLK.

-*                  - NewState: new state of the CAN interrupts.

-*                    This parameter can be: ENABLE or DISABLE.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_ITConfig(u32 CAN_IT, FunctionalState NewState)

-{

-  /* Check the parameters */

-  assert_param(IS_CAN_ITConfig(CAN_IT));

-  assert_param(IS_FUNCTIONAL_STATE(NewState));

-

-  if (NewState != DISABLE)

-  {

-    /* Enable the selected CAN interrupt */

-    CAN->IER |= CAN_IT;

-  }

-  else

-  {

-    /* Disable the selected CAN interrupt */

-    CAN->IER &= ~CAN_IT;

-  }

-}

-

-/*******************************************************************************

-* Function Name  : CAN_Transmit

-* Description    : Initiates the transmission of a message.

-* Input          : TxMessage: pointer to a structure which contains CAN Id, CAN

-*                  DLC and CAN datas.

-* Output         : None.

-* Return         : The number of the mailbox that is used for transmission

-*                  or CAN_NO_MB if there is no empty mailbox.

-*******************************************************************************/

-u8 CAN_Transmit(CanTxMsg* TxMessage)

-{

-  u8 TransmitMailbox = 0;

-

-  /* Check the parameters */

-  assert_param(IS_CAN_STDID(TxMessage->StdId));

-  assert_param(IS_CAN_EXTID(TxMessage->StdId));

-  assert_param(IS_CAN_IDTYPE(TxMessage->IDE));

-  assert_param(IS_CAN_RTR(TxMessage->RTR));

-  assert_param(IS_CAN_DLC(TxMessage->DLC));

-

-  /* Select one empty transmit mailbox */

-  if ((CAN->TSR&CAN_TSR_TME0) == CAN_TSR_TME0)

-  {

-    TransmitMailbox = 0;

-  }

-  else if ((CAN->TSR&CAN_TSR_TME1) == CAN_TSR_TME1)

-  {

-    TransmitMailbox = 1;

-  }

-  else if ((CAN->TSR&CAN_TSR_TME2) == CAN_TSR_TME2)

-  {

-    TransmitMailbox = 2;

-  }

-  else

-  {

-    TransmitMailbox = CAN_NO_MB;

-  }

-

-  if (TransmitMailbox != CAN_NO_MB)

-  {

-    /* Set up the Id */

-    CAN->sTxMailBox[TransmitMailbox].TIR &= CAN_TMIDxR_TXRQ;

-    if (TxMessage->IDE == CAN_ID_STD)

-    {

-      TxMessage->StdId &= (u32)0x000007FF;

-      TxMessage->StdId = TxMessage->StdId << 21;

-      

-      CAN->sTxMailBox[TransmitMailbox].TIR |= (TxMessage->StdId | TxMessage->IDE |

-                                               TxMessage->RTR);

-    }

-    else

-    {

-      TxMessage->ExtId &= (u32)0x1FFFFFFF;

-      TxMessage->ExtId <<= 3;

-

-      CAN->sTxMailBox[TransmitMailbox].TIR |= (TxMessage->ExtId | TxMessage->IDE | 

-                                               TxMessage->RTR);

-    }

-    

-    /* Set up the DLC */

-    TxMessage->DLC &= (u8)0x0000000F;

-    CAN->sTxMailBox[TransmitMailbox].TDTR &= (u32)0xFFFFFFF0;

-    CAN->sTxMailBox[TransmitMailbox].TDTR |= TxMessage->DLC;

-

-    /* Set up the data field */

-    CAN->sTxMailBox[TransmitMailbox].TDLR = (((u32)TxMessage->Data[3] << 24) | 

-                                             ((u32)TxMessage->Data[2] << 16) |

-                                             ((u32)TxMessage->Data[1] << 8) | 

-                                             ((u32)TxMessage->Data[0]));

-    CAN->sTxMailBox[TransmitMailbox].TDHR = (((u32)TxMessage->Data[7] << 24) | 

-                                             ((u32)TxMessage->Data[6] << 16) |

-                                             ((u32)TxMessage->Data[5] << 8) |

-                                             ((u32)TxMessage->Data[4]));

-

-    /* Request transmission */

-    CAN->sTxMailBox[TransmitMailbox].TIR |= CAN_TMIDxR_TXRQ;

-  }

-

-  return TransmitMailbox;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_TransmitStatus

-* Description    : Checks the transmission of a message.

-* Input          : TransmitMailbox: the number of the mailbox that is used for

-*                  transmission.

-* Output         : None.

-* Return         : CANTXOK if the CAN driver transmits the message, CANTXFAILED

-*                  in an other case.

-*******************************************************************************/

-u8 CAN_TransmitStatus(u8 TransmitMailbox)

-{

-  /* RQCP, TXOK and TME bits */

-  u8 State = 0;

-

-  /* Check the parameters */

-  assert_param(IS_CAN_TRANSMITMAILBOX(TransmitMailbox));

-

-  switch (TransmitMailbox)

-  {

-    case (0): State |= (u8)((CAN->TSR & CAN_TSR_RQCP0) << 2);

-      State |= (u8)((CAN->TSR & CAN_TSR_TXOK0) >> 0);

-      State |= (u8)((CAN->TSR & CAN_TSR_TME0) >> 26);

-      break;

-    case (1): State |= (u8)((CAN->TSR & CAN_TSR_RQCP1) >> 6);

-      State |= (u8)((CAN->TSR & CAN_TSR_TXOK1) >> 8);

-      State |= (u8)((CAN->TSR & CAN_TSR_TME1) >> 27);

-      break;

-    case (2): State |= (u8)((CAN->TSR & CAN_TSR_RQCP2) >> 14);

-      State |= (u8)((CAN->TSR & CAN_TSR_TXOK2) >> 16);

-      State |= (u8)((CAN->TSR & CAN_TSR_TME2) >> 28);

-      break;

-    default:

-      State = CANTXFAILED;

-      break;

-  }

-

-  switch (State)

-  {

-      /* transmit pending  */

-    case (0x0): State = CANTXPENDING;

-      break;

-      /* transmit failed  */

-    case (0x5): State = CANTXFAILED;

-      break;

-      /* transmit succedeed  */

-    case (0x7): State = CANTXOK;

-      break;

-    default:

-      State = CANTXFAILED;

-      break;

-  }

-

-  return State;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_CancelTransmit

-* Description    : Cancels a transmit request.

-* Input          : Mailbox number.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_CancelTransmit(u8 Mailbox)

-{

-  /* Check the parameters */

-  assert_param(IS_CAN_TRANSMITMAILBOX(Mailbox));

-

-  /* abort transmission */

-  switch (Mailbox)

-  {

-    case (0): CAN->TSR |= CAN_TSR_ABRQ0;

-      break;

-    case (1): CAN->TSR |= CAN_TSR_ABRQ1;

-      break;

-    case (2): CAN->TSR |= CAN_TSR_ABRQ2;

-      break;

-    default:

-      break;

-  }

-}

-

-/*******************************************************************************

-* Function Name  : CAN_FIFORelease

-* Description    : Releases a FIFO.

-* Input          : FIFONumber: FIFO to release, CAN_FIFO0 or CAN_FIFO1.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_FIFORelease(u8 FIFONumber)

-{

-  /* Check the parameters */

-  assert_param(IS_CAN_FIFO(FIFONumber));

-

-  /* Release FIFO0 */

-  if (FIFONumber == CAN_FIFO0)

-  {

-    CAN->RF0R = CAN_RF0R_RFOM0;

-  }

-  /* Release FIFO1 */

-  else /* FIFONumber == CAN_FIFO1 */

-  {

-    CAN->RF1R = CAN_RF1R_RFOM1;

-  }

-}

-

-/*******************************************************************************

-* Function Name  : CAN_MessagePending

-* Description    : Returns the number of pending messages.

-* Input          : FIFONumber: Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.

-* Output         : None.

-* Return         : NbMessage which is the number of pending message.

-*******************************************************************************/

-u8 CAN_MessagePending(u8 FIFONumber)

-{

-  u8 MessagePending=0;

-

-  /* Check the parameters */

-  assert_param(IS_CAN_FIFO(FIFONumber));

-

-  if (FIFONumber == CAN_FIFO0)

-  {

-    MessagePending = (u8)(CAN->RF0R&(u32)0x03);

-  }

-  else if (FIFONumber == CAN_FIFO1)

-  {

-    MessagePending = (u8)(CAN->RF1R&(u32)0x03);

-  }

-  else

-  {

-    MessagePending = 0;

-  }

-  return MessagePending;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_Receive

-* Description    : Receives a message.

-* Input          : FIFONumber: Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.

-* Output         : RxMessage: pointer to a structure which contains CAN Id,

-*                  CAN DLC, CAN datas and FMI number.

-* Return         : None.

-*******************************************************************************/

-void CAN_Receive(u8 FIFONumber, CanRxMsg* RxMessage)

-{

-  /* Check the parameters */

-  assert_param(IS_CAN_FIFO(FIFONumber));

-

-  /* Get the Id */

-  RxMessage->IDE = (u8)0x04 & CAN->sFIFOMailBox[FIFONumber].RIR;

-  if (RxMessage->IDE == CAN_ID_STD)

-  {

-    RxMessage->StdId = (u32)0x000007FF & (CAN->sFIFOMailBox[FIFONumber].RIR >> 21);

-  }

-  else

-  {

-    RxMessage->ExtId = (u32)0x1FFFFFFF & (CAN->sFIFOMailBox[FIFONumber].RIR >> 3);

-  }

-  

-  RxMessage->RTR = (u8)0x02 & CAN->sFIFOMailBox[FIFONumber].RIR;

-

-  /* Get the DLC */

-  RxMessage->DLC = (u8)0x0F & CAN->sFIFOMailBox[FIFONumber].RDTR;

-

-  /* Get the FMI */

-  RxMessage->FMI = (u8)0xFF & (CAN->sFIFOMailBox[FIFONumber].RDTR >> 8);

-

-  /* Get the data field */

-  RxMessage->Data[0] = (u8)0xFF & CAN->sFIFOMailBox[FIFONumber].RDLR;

-  RxMessage->Data[1] = (u8)0xFF & (CAN->sFIFOMailBox[FIFONumber].RDLR >> 8);

-  RxMessage->Data[2] = (u8)0xFF & (CAN->sFIFOMailBox[FIFONumber].RDLR >> 16);

-  RxMessage->Data[3] = (u8)0xFF & (CAN->sFIFOMailBox[FIFONumber].RDLR >> 24);

-

-  RxMessage->Data[4] = (u8)0xFF & CAN->sFIFOMailBox[FIFONumber].RDHR;

-  RxMessage->Data[5] = (u8)0xFF & (CAN->sFIFOMailBox[FIFONumber].RDHR >> 8);

-  RxMessage->Data[6] = (u8)0xFF & (CAN->sFIFOMailBox[FIFONumber].RDHR >> 16);

-  RxMessage->Data[7] = (u8)0xFF & (CAN->sFIFOMailBox[FIFONumber].RDHR >> 24);

-

-  /* Release the FIFO */

-  CAN_FIFORelease(FIFONumber);

-}

-

-/*******************************************************************************

-* Function Name  : CAN_Sleep

-* Description    : Enters the low power mode.

-* Input          : None.

-* Output         : None.

-* Return         : CANSLEEPOK if sleep entered, CANSLEEPFAILED in an other case.

-*******************************************************************************/

-u8 CAN_Sleep(void)

-{

-  u8 SleepStatus = 0;

-

-  /* Sleep mode entering request */

-  CAN->MCR |= CAN_MCR_SLEEP;

-  SleepStatus = CANSLEEPOK;

-

-  /* Sleep mode status */

-  if ((CAN->MCR&CAN_MCR_SLEEP) == 0)

-  {

-    /* Sleep mode not entered */

-    SleepStatus = CANSLEEPFAILED;

-  }

-

-  /* At this step, sleep mode status */

-  return SleepStatus;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_WakeUp

-* Description    : Wakes the CAN up.

-* Input          : None.

-* Output         : None.

-* Return         : CANWAKEUPOK if sleep mode left, CANWAKEUPFAILED in an other

-*                  case.

-*******************************************************************************/

-u8 CAN_WakeUp(void)

-{

-  u8 WakeUpStatus = 0;

-

-  /* Wake up request */

-  CAN->MCR &= ~CAN_MCR_SLEEP;

-  WakeUpStatus = CANWAKEUPFAILED;

-

-  /* Sleep mode status */

-  if ((CAN->MCR&CAN_MCR_SLEEP) == 0)

-  {

-    /* Sleep mode exited */

-    WakeUpStatus = CANWAKEUPOK;

-  }

-

-  /* At this step, sleep mode status */

-  return WakeUpStatus;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_GetFlagStatus

-* Description    : Checks whether the specified CAN flag is set or not.

-* Input          : CAN_FLAG: specifies the flag to check.

-*                  This parameter can be: CAN_FLAG_EWG, CAN_FLAG_EPV or

-*                                         CAN_FLAG_BOF.

-* Output         : None.

-* Return         : The new state of CAN_FLAG (SET or RESET).

-*******************************************************************************/

-FlagStatus CAN_GetFlagStatus(u32 CAN_FLAG)

-{

-  FlagStatus bitstatus = RESET;

-

-  /* Check the parameters */

-  assert_param(IS_CAN_FLAG(CAN_FLAG));

-

-  /* Check the status of the specified CAN flag */

-  if ((CAN->ESR & CAN_FLAG) != (u32)RESET)

-  {

-    /* CAN_FLAG is set */

-    bitstatus = SET;

-  }

-  else

-  {

-    /* CAN_FLAG is reset */

-    bitstatus = RESET;

-  }

-  /* Return the CAN_FLAG status */

-  return  bitstatus;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_ClearFlag

-* Description    : Clears the CAN's pending flags.

-* Input          : CAN_FLAG: specifies the flag to clear.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_ClearFlag(u32 CAN_FLAG)

-{

-  /* Check the parameters */

-  assert_param(IS_CAN_FLAG(CAN_FLAG));

-

-  /* Clear the selected CAN flags */

-  CAN->ESR &= ~CAN_FLAG;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_GetITStatus

-* Description    : Checks whether the specified CAN interrupt has occurred or 

-*                  not.

-* Input          : CAN_IT: specifies the CAN interrupt source to check.

-*                  This parameter can be: CAN_IT_RQCP0, CAN_IT_RQCP1, CAN_IT_RQCP2,

-*                                         CAN_IT_FF0, CAN_IT_FOV0, CAN_IT_FF1,

-*                                         CAN_IT_FOV1, CAN_IT_EWG, CAN_IT_EPV, 

-*                                         CAN_IT_BOF, CAN_IT_WKU or CAN_IT_SLK.

-* Output         : None.

-* Return         : The new state of CAN_IT (SET or RESET).

-*******************************************************************************/

-ITStatus CAN_GetITStatus(u32 CAN_IT)

-{

-  ITStatus pendingbitstatus = RESET;

-

-  /* Check the parameters */

-  assert_param(IS_CAN_ITStatus(CAN_IT));

-

-  switch (CAN_IT)

-  {

-    case CAN_IT_RQCP0:

-      pendingbitstatus = CheckITStatus(CAN->TSR, CAN_TSR_RQCP0);

-      break;

-    case CAN_IT_RQCP1:

-      pendingbitstatus = CheckITStatus(CAN->TSR, CAN_TSR_RQCP1);

-      break;

-    case CAN_IT_RQCP2:

-      pendingbitstatus = CheckITStatus(CAN->TSR, CAN_TSR_RQCP2);

-      break;

-    case CAN_IT_FF0:

-      pendingbitstatus = CheckITStatus(CAN->RF0R, CAN_RF0R_FULL0);

-      break;

-    case CAN_IT_FOV0:

-      pendingbitstatus = CheckITStatus(CAN->RF0R, CAN_RF0R_FOVR0);

-      break;

-    case CAN_IT_FF1:

-      pendingbitstatus = CheckITStatus(CAN->RF1R, CAN_RF1R_FULL1);

-      break;

-    case CAN_IT_FOV1:

-      pendingbitstatus = CheckITStatus(CAN->RF1R, CAN_RF1R_FOVR1);

-      break;

-    case CAN_IT_EWG:

-      pendingbitstatus = CheckITStatus(CAN->ESR, CAN_ESR_EWGF);

-      break;

-    case CAN_IT_EPV:

-      pendingbitstatus = CheckITStatus(CAN->ESR, CAN_ESR_EPVF);

-      break;

-    case CAN_IT_BOF:

-      pendingbitstatus = CheckITStatus(CAN->ESR, CAN_ESR_BOFF);

-      break;

-    case CAN_IT_SLK:

-      pendingbitstatus = CheckITStatus(CAN->MSR, CAN_MSR_SLAKI);

-      break;

-    case CAN_IT_WKU:

-      pendingbitstatus = CheckITStatus(CAN->MSR, CAN_MSR_WKUI);

-      break;

-

-    default :

-      pendingbitstatus = RESET;

-      break;

-  }

-

-  /* Return the CAN_IT status */

-  return  pendingbitstatus;

-}

-

-/*******************************************************************************

-* Function Name  : CAN_ClearITPendingBit

-* Description    : Clears the CAN’s interrupt pending bits.

-* Input          : CAN_IT: specifies the interrupt pending bit to clear.

-* Output         : None.

-* Return         : None.

-*******************************************************************************/

-void CAN_ClearITPendingBit(u32 CAN_IT)

-{

-  /* Check the parameters */

-  assert_param(IS_CAN_ITStatus(CAN_IT));

-

-  switch (CAN_IT)

-  {

-    case CAN_IT_RQCP0:

-      CAN->TSR = CAN_TSR_RQCP0; /* rc_w1*/

-      break;

-    case CAN_IT_RQCP1:

-      CAN->TSR = CAN_TSR_RQCP1; /* rc_w1*/

-      break;

-    case CAN_IT_RQCP2:

-      CAN->TSR = CAN_TSR_RQCP2; /* rc_w1*/

-      break;

-    case CAN_IT_FF0:

-      CAN->RF0R = CAN_RF0R_FULL0; /* rc_w1*/

-      break;

-    case CAN_IT_FOV0:

-      CAN->RF0R = CAN_RF0R_FOVR0; /* rc_w1*/

-      break;

-    case CAN_IT_FF1:

-      CAN->RF1R = CAN_RF1R_FULL1; /* rc_w1*/

-      break;

-    case CAN_IT_FOV1:

-      CAN->RF1R = CAN_RF1R_FOVR1; /* rc_w1*/

-      break;

-    case CAN_IT_EWG:

-      CAN->ESR &= ~ CAN_ESR_EWGF; /* rw */

-      break;

-    case CAN_IT_EPV:

-      CAN->ESR &= ~ CAN_ESR_EPVF; /* rw */

-      break;

-    case CAN_IT_BOF:

-      CAN->ESR &= ~ CAN_ESR_BOFF; /* rw */

-      break;

-    case CAN_IT_WKU:

-      CAN->MSR = CAN_MSR_WKUI;  /* rc_w1*/

-      break;

-    case CAN_IT_SLK:

-      CAN->MSR = CAN_MSR_SLAKI;  /* rc_w1*/

-      break;

-    default :

-      break;

-  }

-}

-

-/*******************************************************************************

-* Function Name  : CheckITStatus

-* Description    : Checks whether the CAN interrupt has occurred or not.

-* Input          : CAN_Reg: specifies the CAN interrupt register to check.

-*                  It_Bit: specifies the interrupt source bit to check.

-* Output         : None.

-* Return         : The new state of the CAN Interrupt (SET or RESET).

-*******************************************************************************/

-static ITStatus CheckITStatus(u32 CAN_Reg, u32 It_Bit)

-{

-  ITStatus pendingbitstatus = RESET;

-

-  if ((CAN_Reg & It_Bit) != (u32)RESET)

-  {

-    /* CAN_IT is set */

-    pendingbitstatus = SET;

-  }

-  else

-  {

-    /* CAN_IT is reset */

-    pendingbitstatus = RESET;

-  }

-

-  return pendingbitstatus;

-}

-

-/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/