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166 lines
5.3 KiB
C
166 lines
5.3 KiB
C
/******************** (C) COPYRIGHT 2006 STMicroelectronics ********************
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* File Name : 75x_can.h
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* Author : MCD Application Team
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* Date First Issued : 03/10/2006
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* Description : This file contains all the functions prototypes for the
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* CAN bus software library.
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********************************************************************************
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* History:
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* 07/17/2006 : V1.0
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* 03/10/2006 : V0.1
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********************************************************************************
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* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
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* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
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* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
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* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*******************************************************************************/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __75x_CAN_H
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#define __75x_CAN_H
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/* Includes ------------------------------------------------------------------*/
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#include "75x_map.h"
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/* Exported types ------------------------------------------------------------*/
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/* CAN Init structure define */
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typedef struct
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{
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u8 CAN_ConfigParameters;
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u32 CAN_Bitrate;
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}CAN_InitTypeDef;
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/* Exported constants --------------------------------------------------------*/
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/* Standard bitrates available*/
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enum
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{
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CAN_BITRATE_100K,
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CAN_BITRATE_125K,
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CAN_BITRATE_250K,
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CAN_BITRATE_500K,
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CAN_BITRATE_1M
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};
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/* Control register*/
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#define CAN_CR_TEST 0x0080
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#define CAN_CR_CCE 0x0040
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#define CAN_CR_DAR 0x0020
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#define CAN_CR_EIE 0x0008
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#define CAN_CR_SIE 0x0004
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#define CAN_CR_IE 0x0002
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#define CAN_CR_INIT 0x0001
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/* Status register */
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#define CAN_SR_BOFF 0x0080
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#define CAN_SR_EWARN 0x0040
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#define CAN_SR_EPASS 0x0020
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#define CAN_SR_RXOK 0x0010
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#define CAN_SR_TXOK 0x0008
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#define CAN_SR_LEC 0x0007
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/* Test register*/
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#define CAN_TESTR_RX 0x0080
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#define CAN_TESTR_TX1 0x0040
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#define CAN_TESTR_TX0 0x0020
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#define CAN_TESTR_LBACK 0x0010
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#define CAN_TESTR_SILENT 0x0008
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#define CAN_TESTR_BASIC 0x0004
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/* IFn / Command Request register*/
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#define CAN_CRR_BUSY 0x8000
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/* IFn / Command Mask register*/
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#define CAN_CMR_WRRD 0x0080
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#define CAN_CMR_MASK 0x0040
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#define CAN_CMR_ARB 0x0020
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#define CAN_CMR_CONTROL 0x0010
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#define CAN_CMR_CLRINTPND 0x0008
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#define CAN_CMR_TXRQSTNEWDAT 0x0004
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#define CAN_CMR_DATAA 0x0002
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#define CAN_CMR_DATAB 0x0001
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/* IFn / Mask 2 register*/
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#define CAN_M2R_MXTD 0x8000
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#define CAN_M2R_MDIR 0x4000
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/* IFn / Arbitration 2 register*/
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#define CAN_A2R_MSGVAL 0x8000
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#define CAN_A2R_XTD 0x4000
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#define CAN_A2R_DIR 0x2000
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/* IFn / Message Control register*/
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#define CAN_MCR_NEWDAT 0x8000
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#define CAN_MCR_MSGLST 0x4000
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#define CAN_MCR_INTPND 0x2000
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#define CAN_MCR_UMASK 0x1000
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#define CAN_MCR_TXIE 0x0800
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#define CAN_MCR_RXIE 0x0400
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#define CAN_MCR_RMTEN 0x0200
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#define CAN_MCR_TXRQST 0x0100
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#define CAN_MCR_EOB 0x0080
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/* Wake-up modes*/
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enum
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{
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CAN_WAKEUP_ON_EXT,
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CAN_WAKEUP_ON_CAN
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};
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/* CAN message structure*/
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typedef struct
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{
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u32 IdType;
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u32 Id;
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u8 Dlc;
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u8 Data[8];
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} canmsg;
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/* Message ID types*/
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enum
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{
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CAN_STD_ID,
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CAN_EXT_ID
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};
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/* Message ID limits*/
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#define CAN_LAST_STD_ID ((1<<11) - 1)
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#define CAN_LAST_EXT_ID ((1L<<29) - 1)
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/* Exported functions ------------------------------------------------------- */
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void CAN_Init (CAN_InitTypeDef *CAN_InitStruct);
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void CAN_DeInit (void);
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void CAN_StructInit(CAN_InitTypeDef *CAN_InitStruct);
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void CAN_SetBitrate(u32 bitrate);
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void CAN_SetTiming(u32 tseg1, u32 tseg2, u32 sjw, u32 brp);
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ErrorStatus CAN_SetUnusedMsgObj(u32 msgobj);
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ErrorStatus CAN_SetTxMsgObj(u32 msgobj, u32 idType);
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ErrorStatus CAN_SetRxMsgObj(u32 msgobj, u32 idType, u32 idLow, u32 idHigh, bool singleOrFifoLast);
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void CAN_InvalidateAllMsgObj(void);
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ErrorStatus CAN_ReleaseMessage(u32 msgobj);
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ErrorStatus CAN_SendMessage(u32 msgobj, canmsg* pCanMsg);
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ErrorStatus CAN_ReceiveMessage(u32 msgobj, bool release, canmsg* pCanMsg);
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ErrorStatus CAN_WaitEndOfTx(void);
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ErrorStatus CAN_BasicSendMessage(canmsg* pCanMsg);
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ErrorStatus CAN_BasicReceiveMessage(canmsg* pCanMsg);
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void CAN_EnterTestMode(u8 TestMask);
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void CAN_EnterInitMode(u8 InitMask);
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void CAN_LeaveInitMode(void);
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void CAN_LeaveTestMode(void);
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void CAN_ReleaseTxMessage(u32 msgobj);
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void CAN_ReleaseRxMessage(u32 msgobj);
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u32 CAN_IsMessageWaiting(u32 msgobj);
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u32 CAN_IsTransmitRequested(u32 msgobj);
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u32 CAN_IsInterruptPending(u32 msgobj);
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u32 CAN_IsObjectValid(u32 msgobj);
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#endif /* __75x_CAN_H */
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/******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/
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