事件标志组
定义一个FLAG_GROUP
定义1bit为1个标志位
/*事件标志组*/ 实现任务同步 OS_FLAG_GRP OS_Flag_Group; #define flag_key0 0x01 #define flag_key1 0x02 #define flag_none 0x00 //创建事件标志组 OSFlagCreate((OS_FLAG_GRP *)&OS_Flag_Group, (CPU_CHAR *)"os flag group", (OS_FLAGS )flag_none, (OS_ERR *)&err); OSFlagPost((OS_FLAG_GRP *)&OS_Flag_Group, (OS_FLAGS )flag_key0, (OS_OPT )OS_OPT_POST_FLAG_SET, (OS_ERR *)&err); OSFlagPend((OS_FLAG_GRP *)&OS_Flag_Group, (OS_FLAGS )flag_key0|flag_key1, //OS_OPT_PEND_FLAG_SET_ALL 等待这2个标志位都置1的时候 (OS_TICK )0, (OS_OPT )OS_OPT_PEND_FLAG_SET_ALL+OS_OPT_PEND_FLAG_CONSUME,//consume用过就清零该标志位 (CPU_TS *)0, (OS_ERR *)&err);