软件过滤 struct can_filter filter[1];/* 规则:可以接收ID为0x200数据帧和错误帧 */filter[0].can_mask = CAN_SFF_MASK;filter[0].can_id = 0x200 & CAN_SFF_MASK;filter[0].can_mask |= CAN_EFF_FLAG;if (setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &filter, sizeof(filter))){perror...
根据RXCODE / RXMASK的值将定义2个过滤器,分别为过滤器0和过滤器1,其标准格式和扩展格式下过滤报文定义如图1-12和图1-13所示。双过滤模式下,如果报文通过这2个滤波器中至少一个,则表示该报文成功通过过滤。 双过滤模式下SFF标准格式过滤报文定义 双过滤模式下EFF扩展格式过滤报文定义 错误管理 错误计数包含发送错...
rfilter[0].can_id = 0x123; rfilter[0].can_mask = CAN_SFF_MASK; //#define CAN_SFF_MASK 0x000007FFU rfilter[1].can_id = 0x200; rfilter[1].can_mask = 0x700; setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &rfilter, sizeof(rfilter));//设置规则 1. 2. 3. 4. 5. 6. 在...
struct can_filter filter[1];/* 规则:可以接收ID为0x200数据帧和错误帧 */ filter[0].can_mask = CAN_SFF_MASK;filter[0].can_id = 0x200 & CAN_SFF_MASK;filter[0].can_mask |= CAN_EFF_FLAG; if (setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &filter, sizeof(filter))){perror("setsock...
filter[0].can_id = 0x200 & CAN_SFF_MASK; filter[0].can_mask |= CAN_EFF_FLAG; if (setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &filter, sizeof(filter))) { perror("setsockopt failed"); exit(EXIT_FAILURE); } 软件的配置可以在系统中检查: ...
单过滤模式:在模式寄存器(CAN_MODE)中将FILTER_SEL设置为1启动单过滤模式。根据RXCODE / RXMASK的值定义单个过滤器,其定义及过滤报文格式如图1-11所示。 双过滤模式:在模式寄存器(CAN_MODE)中将FILTER_SEL设置为0启动双过滤模式。根据RXCODE / RXMASK的值将定义2个过滤器,分别为过滤器0和过滤器1,其标准格式和...
rfilter[0].can_mask = CAN_SFF_MASK; //#define CAN_SFF_MASK 0x000007FFU rfilter[1].can_id = 0x200; rfilter[1].can_mask = 0x700; setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &rfilter, sizeof(rfilter));//设置规则 在极端情况下,如果应用程序不需要接收报文,可以禁用过滤规则。这样的...
rfilter[0].can_mask = CAN_SFF_MASK; //#define CAN_SFF_MASK 0x000007FFU 5. rfilter[1].can_mask = 0x700; 6. setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &rfilter, sizeof(rfilter)); // 设置规则 在极端情况下,如果应用程序不需要接收报文,可以禁用过滤规则。这样的话,原始套接字就会...
filter[0].can_id = 0x200 & CAN_SFF_MASK; filter[0].can_mask |= CAN_EFF_FLAG; if (setsockopt(s, SOL_CAN_RAW, CAN_RAW_FILTER, &filter, sizeof(filter))) { perror("setsockopt failed"); exit(EXIT_FAILURE); } 软件的配置可以在系统中检查: ...
if(filter_id!=0){rfilter.can_id=0x123;// CAN_EFF_MASK | CAN_SFF_MASKrfilter.can_mask=CAN_SFF_MASK;setsockopt(s,SOL_CAN_RAW,CAN_RAW_FILTER,&rfilter,sizeof(rfilter));}while(nbytes==0){//接收总线上的报文保存在frame中nbytes=read(s,&frame,sizeof(frame));}*r_frame=frame;#ifdef...