Пример #1
0
        public void ReadFrame()
        {
            uint handle = 0;
            var  rxMsg  = new NiCan.NCTYPE_CAN_STRUCT();

            /*** Config ***/
            uint[] AttrIdList    = { NiCan.NC_ATTR_BAUD_RATE, NiCan.NC_ATTR_START_ON_OPEN };
            uint[] AttrValueList = { Baudrate, NiCan.NC_FALSE };
            uint   NumAttrs      = 2;
            int    status        = NiCan.ncConfig(new StringBuilder(Interface), NumAttrs, AttrIdList, AttrValueList);

            Assert.AreEqual(0, status, NiCanTools.StatusToString(status));

            /*** Open Object ***/
            status = NiCan.ncOpenObject(new StringBuilder(Interface), ref handle);
            Assert.AreEqual(0, status, NiCanTools.StatusToString(status));

            /*** Start ***/
            status = NiCan.ncAction(handle, NiCan.NC_OP_START, 0);
            Assert.AreEqual(0, status, NiCanTools.StatusToString(status));

            var  timestamp = System.DateTime.Now;
            bool flag      = false;
            int  tryCount  = 0;

            do
            {
                /*** Get NC_ATTR_READ_PENDING ***/
                uint msgspending = 0;
                status = NiCan.ncGetAttribute(handle, NiCan.NC_ATTR_READ_PENDING, 4, ref msgspending);
                Assert.AreEqual(0, status, NiCanTools.StatusToString(status));


                if (msgspending != 0)
                {
                    /*** Read ***/
                    status = NiCan.ncRead(handle, NiCan.CanStructSize, ref rxMsg);
                    Assert.AreEqual(0, status, NiCanTools.StatusToString(status));

                    /*** Msg Write Console ***/
                    Debug.WriteLine("Timestamp:" + rxMsg.TimeStamp.ToString("X"));
                    Debug.WriteLine("ArbitrationId:" + rxMsg.ArbitrationId.ToString("X"));
                    Debug.WriteLine("FrameType:" + rxMsg.FrameType.ToString());
                    Debug.WriteLine("DataLength:" + rxMsg.DataLength.ToString());
                    Debug.WriteLine("Data64:" + rxMsg.Data64.ToString("X"));
                    Debug.WriteLine("Data7:" + rxMsg.Data7.ToString());

                    flag = true;
                }

                tryCount++;
            } while ((System.DateTime.Now - timestamp).Seconds < 10);

            if (!flag)
            {
                Debug.WriteLine("I did not received any messages...");
            }

            Debug.WriteLine("I checked:" + tryCount.ToString() + " times.");

            /*** Stop ***/
            status = NiCan.ncAction(handle, NiCan.NC_OP_STOP, 0);
            Assert.AreEqual(0, status, NiCanTools.StatusToString(status));


            /*** Close ***/
            status = NiCan.ncCloseObject(handle);
            Assert.AreEqual(0, status, NiCanTools.StatusToString(status));
        }