STM32下实现的对CAN J939数据请求源码

/* ******************************************************************************* * Copyright (c) 2008, * All rights reserved. * * File Name : canapp.c * Project : CT101 * Author : jlong * Version : 1.0.0 * Date : 12/11/2015 * Description : ******************************************************************************* */ /* *************************************修改日志********************************** ******************************************************************************* */ #include "includes.h" #include "can_j1939.h" /* ******************************************************************************* * 常量定义 ******************************************************************************* */ #define STATUS_IDLE 0 //AT引擎处于等待状态// #define STATUS_RUNNING 1 //AT引擎处于运行状态// /* ******************************************************************************* * 类型定义 ******************************************************************************* */ #pragma pack(1) typedef struct { void (*CanRecvHandle)(u32 CanID, u8 *CanBuf, u8 event); //回调函数// s32 timeout; //超时时间// u8 exe_status; //执行状态// }sJ1939Engine; #pragma pack() /* ******************************************************************************* * 变量定义 ******************************************************************************* */ u8 Source_Address = 0XA5; //存储原地址 u8 Target_Address = 0x00; //发送请求的目标地址 u8 PDU_PF = 0x00; //存储PDU_PF域变量 u8 PDU_PS = 0x00; //存储PDU_PS域变量 u8 PDU_SA = 0x00; //存储PDU_PA域变量 u8 PDU_TA = 0X00; //存储上请求发送的目的地址 u8 PGN_Low = 0x00; //存储参数组pdu_pf u8 PGN_Mid = 0x00; //存储参数组的PDU_PS u8 PGN_High = 0x00; //存储目前正在进行数据交换的PGN u8 CA_Name[8] = {0x00}; //存储CA名字 sJ1939Engine J1939Engine; /* ******************************************************************************* * 函数原型定义 ******************************************************************************* */ /*========================================================================= 函数名称: Store_Ca_Name 功能描述: 存储CA的名字 输入参数: 输出参数: =========================================================================*/ void J1939_StoreCaName(void) { CA_Name[0] = J1939_CA_Name0; CA_Name[1] = J1939_CA_Name1; CA_Name[2] = J1939_CA_Name2; CA_Name[3] = J1939_CA_Name3; CA_Name[4] = J1939_CA_Name4; CA_Name[5] = J1939_CA_Name5; CA_Name[6] = J1939_CA_Name6; CA_Name[7] = J1939_CA_Name7; } /*========================================================================= 函数名称: Translate_IdExt 功能描述: 将标准的CAN 转换成J1939 输入参数: PDU_PF,PDU_PS,PDU_SA 输出参数: STM32报id_Exr =========================================================================*/ u32 static J1939_TranslateIdExt (u8 Priority,u8 Pdu_PF,u8 Pdu_Ps,u8 Pdu_Sa) { u32 Id_Ext = 0x00000000; Id_Ext = Id_Ext|Priority<<26; Id_Ext = ((Id_Ext>>16)|Pdu_PF)<<16; Id_Ext = ((Id_Ext>>8)|Pdu_Ps)<<8; Id_Ext = Id_Ext|Pdu_Sa; return Id_Ext; } /*========================================================================= 函数名称: CAN_SetFilterStd 功能描述: 设置标准帧过滤器 输入参数: 过滤器号码，过滤的ID和屏蔽器 输出参数: 无 =========================================================================*/ void J1939_SetFilterStd(u8 number,u16 ID,u16 Mask) { CAN_FilterInitTypeDef CAN_FilterInitStructure; /* CAN 过滤器设置 */ CAN_FilterInitStructure.CAN_FilterNumber=number; CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask; CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_16bit; CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000; CAN_FilterInitStructure.CAN_FilterIdLow=ID; CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000; CAN_FilterInitStructure.CAN_FilterMaskIdLow=Mask; CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0; CAN_FilterInitStructure.CAN_FilterActivation=ENABLE; CAN_FilterInit(&CAN_FilterInitStructure); } /*========================================================================= 函数名称: CAN_SetFilterExt 功能描述: 设置扩展帧过滤器 输入参数: 过滤器号码，过滤的ID和屏蔽器 输出参数: 无 =========================================================================*/ void J1939_SetFilterExt(u8 number,u16 ID,u16 Mask) { CAN_FilterInitTypeDef CAN_FilterInitStructure; /* CAN 过滤器设置 */ CAN_FilterInitStructure.CAN_FilterNumber=number; CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask; CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit; CAN_FilterInitStructure.CAN_FilterIdHigh=ID; CAN_FilterInitStructure.CAN_FilterIdLow=0x0000; CAN_FilterInitStructure.CAN_FilterMaskIdHigh=Mask; CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000; CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0; CAN_FilterInitStructure.CAN_FilterActivation=ENABLE; CAN_FilterInit(&CAN_FilterInitStructure); } /*========================================================================= 函数名称: CAN_SetFilterExt_Full(u8 number,u32 ID) 功能描述: 设置扩展帧过滤器全滤波29位ID 输入参数: 过滤器号码，过滤的 输出参数: 无 =========================================================================*/ void J1939_SetFilterExtFull(u8 number,u32 ID) { CAN_FilterInitTypeDef CAN_FilterInitStructure; /* CAN 过滤器设置 */ CAN_FilterInitStructure.CAN_FilterNumber=number; CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask; CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit; CAN_FilterInitStructure.CAN_FilterIdHigh=((ID<<3)&0xffff0000)>>16; CAN_FilterInitStructure.CAN_FilterIdLow=((ID<<3)|CAN_ID_EXT|CAN_RTR_DATA)&0XFFFF; CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x1fff; CAN_FilterInitStructure.CAN_FilterMaskIdLow=0xfff8; CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0; CAN_FilterInitStructure.CAN_FilterActivation=ENABLE; CAN_FilterInit(&CAN_FilterInitStructure); } /*========================================================================= 函数名称: Cmd_Filter 功能描述: 滤波器激活 输入参数: 命令 输出参数: 无 =========================================================================*/ void J1939_CmdFilter(u8 Status_Filter0,u8 Status_Filter1) { if(Status_Filter0) { J1939_SetFilterExt(0,ID_REQUEST,Mask_Ack_Request_Tbdt); } else { CAN_FilterInitTypeDef CAN_FilterInitStructure; CAN_FilterInitStructure.CAN_FilterNumber=0x00; CAN_FilterInitStructure.CAN_FilterActivation=DISABLE; CAN_FilterInit(&CAN_FilterInitStructure); } if(Status_Filter1) { CAN_FilterInitTypeDef CAN_FilterInitStructure; CAN_FilterInitStructure.CAN_FilterNumber=0x01; CAN_FilterInitStructure.CAN_FilterActivation=ENABLE; CAN_FilterInit(&CAN_FilterInitStructure); } else { CAN_FilterInitTypeDef CAN_FilterInitStructure; CAN_FilterInitStructure.CAN_FilterNumber=0x01; CAN_FilterInitStructure.CAN_FilterActivation=DISABLE; CAN_FilterInit(&CAN_FilterInitStructure); } } /*========================================================================= 函数名称: Set_ReadData_Filter(u8 Priority,u16 Pgn,u8 Target) 功能描述: 设置滤波器，只开一个滤波器并且对ID全滤波 输入参数: 优先级，PGN，目标地址 输出参数: =========================================================================*/ void J1939_SetReadDataFilter(u8 Priority, u16 Pgn, u8 Target) { u32 Temp0 = 0x00000000; J1939_CmdFilter(Disable_Filter0,Disable_Filter1); //禁止所有接收 CAN_FIFORelease(CAN1, CAN_FIFO0); //先释放已经接收的数据 Temp0 = (Temp0|Priority)<<18; //设置优先级 Temp0 = (Temp0|Pgn)<<8; Temp0 = Temp0|Target; J1939_SetFilterExtFull(1,Temp0); //开放设置好�