270 lines
12 KiB
C
270 lines
12 KiB
C
/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
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* File Name : stm32f10x_can.h
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* Author : MCD Application Team
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* Date First Issued : 09/29/2006
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* Description : This file contains all the functions prototypes for the
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* CAN firmware library.
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********************************************************************************
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* History:
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* 04/02/2007: V0.2
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* 02/05/2007: V0.1
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* 09/29/2006: V0.01
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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 __STM32F10x_CAN_H
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#define __STM32F10x_CAN_H
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f10x_map.h"
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/* Exported types ------------------------------------------------------------*/
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/* CAN init structure definition */
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typedef struct
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{
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FunctionalState CAN_TTCM;
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FunctionalState CAN_ABOM;
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FunctionalState CAN_AWUM;
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FunctionalState CAN_NART;
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FunctionalState CAN_RFLM;
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FunctionalState CAN_TXFP;
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u8 CAN_Mode;
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u8 CAN_SJW;
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u8 CAN_BS1;
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u8 CAN_BS2;
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u8 CAN_Clock;
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u16 CAN_Prescaler;
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} CAN_InitTypeDef;
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/* CAN filter init structure definition */
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typedef struct
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{
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u8 CAN_FilterNumber;
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u8 CAN_FilterMode;
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u8 CAN_FilterScale;
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u16 CAN_FilterIdHigh;
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u16 CAN_FilterIdLow;
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u16 CAN_FilterMaskIdHigh;
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u16 CAN_FilterMaskIdLow;
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u16 CAN_FilterFIFOAssignment;
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FunctionalState CAN_FilterActivation;
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} CAN_FilterInitTypeDef;
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/* CAN Tx message structure definition */
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typedef struct
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{
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u32 StdId;
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u32 ExtId;
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u8 IDE;
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u8 RTR;
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u8 DLC;
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u8 Data[8];
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} CanTxMsg;
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/* CAN Rx message structure definition */
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typedef struct
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{
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u32 StdId;
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u32 ExtId;
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u8 IDE;
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u8 RTR;
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u8 DLC;
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u8 Data[8];
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u8 FMI;
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} CanRxMsg;
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/* Exported constants --------------------------------------------------------*/
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/* CAN sleep constants */
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#define CANINITFAILED ((u8)0x00) /* CAN initialization failed */
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#define CANINITOK ((u8)0x01) /* CAN initialization failed */
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/* CAN operating mode */
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#define CAN_Mode_Normal ((u8)0x00) /* normal mode */
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#define CAN_Mode_LoopBack ((u8)0x01) /* loopback mode */
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#define CAN_Mode_Silent ((u8)0x02) /* silent mode */
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#define CAN_Mode_Silent_LoopBack ((u8)0x03) /* loopback combined with silent mode */
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#define IS_CAN_MODE(MODE) ((MODE == CAN_Mode_Normal) || (MODE == CAN_Mode_LoopBack)|| \
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(MODE == CAN_Mode_Silent) || (MODE == CAN_Mode_Silent_LoopBack))
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/* CAN synchronisation jump width */
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#define CAN_SJW_0tq ((u8)0x00) /* 0 time quantum */
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#define CAN_SJW_1tq ((u8)0x01) /* 1 time quantum */
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#define CAN_SJW_2tq ((u8)0x02) /* 2 time quantum */
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#define CAN_SJW_3tq ((u8)0x03) /* 3 time quantum */
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#define IS_CAN_SJW(SJW) ((SJW == CAN_SJW_0tq) || (SJW == CAN_SJW_1tq)|| \
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(SJW == CAN_SJW_2tq) || (SJW == CAN_SJW_3tq))
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/* time quantum in bit segment 1 */
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#define CAN_BS1_1tq ((u8)0x00) /* 1 time quantum */
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#define CAN_BS1_2tq ((u8)0x01) /* 2 time quantum */
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#define CAN_BS1_3tq ((u8)0x02) /* 3 time quantum */
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#define CAN_BS1_4tq ((u8)0x03) /* 4 time quantum */
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#define CAN_BS1_5tq ((u8)0x04) /* 5 time quantum */
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#define CAN_BS1_6tq ((u8)0x05) /* 6 time quantum */
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#define CAN_BS1_7tq ((u8)0x06) /* 7 time quantum */
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#define CAN_BS1_8tq ((u8)0x07) /* 8 time quantum */
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#define CAN_BS1_9tq ((u8)0x08) /* 9 time quantum */
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#define CAN_BS1_10tq ((u8)0x09) /* 10 time quantum */
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#define CAN_BS1_11tq ((u8)0x0A) /* 11 time quantum */
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#define CAN_BS1_12tq ((u8)0x0B) /* 12 time quantum */
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#define CAN_BS1_13tq ((u8)0x0C) /* 13 time quantum */
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#define CAN_BS1_14tq ((u8)0x0D) /* 14 time quantum */
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#define CAN_BS1_15tq ((u8)0x0E) /* 15 time quantum */
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#define CAN_BS1_16tq ((u8)0x0F) /* 16 time quantum */
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#define IS_CAN_BS1(BS1) (BS1 <= CAN_BS1_16tq)
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/* time quantum in bit segment 2 */
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#define CAN_BS2_1tq ((u8)0x00) /* 1 time quantum */
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#define CAN_BS2_2tq ((u8)0x01) /* 2 time quantum */
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#define CAN_BS2_3tq ((u8)0x02) /* 3 time quantum */
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#define CAN_BS2_4tq ((u8)0x03) /* 4 time quantum */
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#define CAN_BS2_5tq ((u8)0x04) /* 5 time quantum */
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#define CAN_BS2_6tq ((u8)0x05) /* 6 time quantum */
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#define CAN_BS2_7tq ((u8)0x06) /* 7 time quantum */
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#define CAN_BS2_8tq ((u8)0x07) /* 8 time quantum */
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#define IS_CAN_BS2(BS2) (BS2 <= CAN_BS2_8tq)
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/* CAN clock selected */
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#define CAN_Clock_8MHz ((u8)0x00) /* 8MHz XTAL clock selected */
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#define CAN_Clock_APB ((u8)0x01) /* APB clock selected */
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#define IS_CAN_CLOCK(CLOCK) ((CLOCK == CAN_Clock_8MHz) || (CLOCK == CAN_Clock_APB))
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/* CAN clock prescaler */
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#define IS_CAN_PRESCALER(PRESCALER) ((PRESCALER >= 1) && (PRESCALER <= 1024))
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/* CAN filter number */
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#define IS_CAN_FILTER_NUMBER(NUMBER) (NUMBER <= 13)
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/* CAN filter mode */
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#define CAN_FilterMode_IdMask ((u8)0x00) /* id/mask mode */
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#define CAN_FilterMode_IdList ((u8)0x01) /* identifier list mode */
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#define IS_CAN_FILTER_MODE(MODE) ((MODE == CAN_FilterMode_IdMask) || \
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(MODE == CAN_FilterMode_IdList))
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/* CAN filter scale */
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#define CAN_FilterScale_16bit ((u8)0x00) /* 16-bit filter scale */
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#define CAN_FilterScale_32bit ((u8)0x01) /* 2-bit filter scale */
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#define IS_CAN_FILTER_SCALE(SCALE) ((SCALE == CAN_FilterScale_16bit) || \
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(SCALE == CAN_FilterScale_32bit))
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/* CAN filter FIFO assignation */
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#define CAN_FilterFIFO0 ((u8)0x00) /* Filter FIFO 0 assignment for filter x */
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#define CAN_FilterFIFO1 ((u8)0x01) /* Filter FIFO 1 assignment for filter x */
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#define IS_CAN_FILTER_FIFO(FIFO) ((FIFO == CAN_FilterFIFO0) || \
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(FIFO == CAN_FilterFIFO1))
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/* CAN Tx */
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#define IS_CAN_TRANSMITMAILBOX(TRANSMITMAILBOX) (TRANSMITMAILBOX <= ((u8)0x02))
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#define IS_CAN_STDID(STDID) (STDID <= ((u32)0x7FF))
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#define IS_CAN_EXTID(EXTID) (EXTID <= ((u32)0x3FFFF))
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#define IS_CAN_DLC(DLC) (DLC <= ((u8)0x08))
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/* CAN identifier type */
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#define CAN_ID_STD ((u32)0x00000000) /* Standard Id */
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#define CAN_ID_EXT ((u32)0x00000004) /* Extended Id */
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#define IS_CAN_IDTYPE(IDTYPE) ((IDTYPE == CAN_ID_STD) || (IDTYPE == CAN_ID_EXT))
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/* CAN remote transmission request */
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#define CAN_RTR_DATA ((u32)0x00000000) /* Data frame */
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#define CAN_RTR_REMOTE ((u32)0x00000002) /* Remote frame */
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#define IS_CAN_RTR(RTR) ((RTR == CAN_RTR_DATA) || (RTR == CAN_RTR_REMOTE))
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/* CAN transmit constants */
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#define CANTXFAILED ((u8)0x00) /* CAN transmission failed */
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#define CANTXOK ((u8)0x01) /* CAN transmission succeeded */
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#define CANTXPENDING ((u8)0x02) /* CAN transmission pending */
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#define CAN_NO_MB ((u8)0x04) /* CAN cell did not provide an empty mailbox */
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/* CAN receive FIFO number constants */
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#define CAN_FIFO0 ((u8)0x00) /* CAN FIFO0 used to receive */
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#define CAN_FIFO1 ((u8)0x01) /* CAN FIFO1 used to receive */
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#define IS_CAN_FIFO(FIFO) ((FIFO == CAN_FIFO0) || (FIFO == CAN_FIFO1))
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/* CAN sleep constants */
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#define CANSLEEPFAILED ((u8)0x00) /* CAN did not enter the sleep mode */
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#define CANSLEEPOK ((u8)0x01) /* CAN entered the sleep mode */
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/* CAN wake up constants */
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#define CANWAKEUPFAILED ((u8)0x00) /* CAN did not leave the sleep mode */
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#define CANWAKEUPOK ((u8)0x01) /* CAN leaved the sleep mode */
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/* CAN flags */
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#define CAN_FLAG_EWG ((u32)0x00000001) /* Error Warning Flag */
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#define CAN_FLAG_EPV ((u32)0x00000002) /* Error Passive Flag */
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#define CAN_FLAG_BOF ((u32)0x00000004) /* Bus-Off Flag */
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#define IS_CAN_FLAG(FLAG) ((FLAG == CAN_FLAG_EWG) || (FLAG == CAN_FLAG_EPV) ||\
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(FLAG == CAN_FLAG_BOF))
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/* CAN interrupts */
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#define CAN_IT_RQCP0 ((u8)0x05) /* Request completed mailbox 0 */
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#define CAN_IT_RQCP1 ((u8)0x06) /* Request completed mailbox 1 */
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#define CAN_IT_RQCP2 ((u8)0x07) /* Request completed mailbox 2 */
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#define CAN_IT_TME ((u32)0x00000001) /* Transmit mailbox empty */
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#define CAN_IT_FMP0 ((u32)0x00000002) /* FIFO 0 message pending */
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#define CAN_IT_FF0 ((u32)0x00000004) /* FIFO 0 full */
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#define CAN_IT_FOV0 ((u32)0x00000008) /* FIFO 0 overrun */
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#define CAN_IT_FMP1 ((u32)0x00000010) /* FIFO 1 message pending */
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#define CAN_IT_FF1 ((u32)0x00000020) /* FIFO 1 full */
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#define CAN_IT_FOV1 ((u32)0x00000040) /* FIFO 1 overrun */
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#define CAN_IT_EWG ((u32)0x00000100) /* Error warning */
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#define CAN_IT_EPV ((u32)0x00000200) /* Error passive */
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#define CAN_IT_BOF ((u32)0x00000400) /* Bus-off */
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#define CAN_IT_LEC ((u32)0x00000800) /* Last error code */
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#define CAN_IT_ERR ((u32)0x00008000) /* Error */
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#define CAN_IT_WKU ((u32)0x00010000) /* Wake-up */
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#define CAN_IT_SLK ((u32)0x00020000) /* Sleep */
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#define IS_CAN_IT(IT) ((IT == CAN_IT_RQCP0) || (IT == CAN_IT_RQCP1) ||\
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(IT == CAN_IT_RQCP2) || (IT == CAN_IT_TME) ||\
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(IT == CAN_IT_FMP0) || (IT == CAN_IT_FF0) ||\
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(IT == CAN_IT_FOV0) || (IT == CAN_IT_FMP1) ||\
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(IT == CAN_IT_FF1) || (IT == CAN_IT_FOV1) ||\
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(IT == CAN_IT_EWG) || (IT == CAN_IT_EPV) ||\
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(IT == CAN_IT_BOF) || (IT == CAN_IT_LEC) ||\
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(IT == CAN_IT_ERR) || (IT == CAN_IT_WKU) ||\
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(IT == CAN_IT_SLK))
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/* Exported macro ------------------------------------------------------------*/
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/* Exported function protypes ----------------------------------------------- */
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void CAN_DeInit(void);
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u8 CAN_Init(CAN_InitTypeDef* CAN_InitStruct);
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void CAN_FilterInit(CAN_FilterInitTypeDef* CAN_FilterInitStruct);
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void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct);
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void CAN_ITConfig(u32 CAN_IT, FunctionalState NewState);
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u8 CAN_Transmit(CanTxMsg* TxMessage);
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u32 CAN_TransmitStatus(u8 TransmitMailbox);
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void CAN_CancelTransmit(u8 Mailbox);
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void CAN_FIFORelease(u8 FIFONumber);
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u8 CAN_MessagePending(u8 FIFONumber);
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void CAN_Receive(u8 FIFONumber, CanRxMsg* RxMessage);
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u8 CAN_Sleep(void);
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u8 CAN_WakeUp(void);
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FlagStatus CAN_GetFlagStatus(u32 CAN_FLAG);
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void CAN_ClearFlag(u32 CAN_FLAG);
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ITStatus CAN_GetITStatus(u32 CAN_IT);
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void CAN_ClearITPendingBit(u32 CAN_IT);
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#endif /* __STM32F10x_CAN_H */
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/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/
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