cnComm 测试风火轮 NFC板子

串口通信与ETC卡读写

最新推荐文章于 2025-05-06 14:05:13 发布

原创最新推荐文章于 2025-05-06 14:05:13 发布 · 375 阅读

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本文介绍了一个基于VC++的串口通信程序实现，包括设置串口参数、发送唤醒读卡器指令及接收返回数据的过程。通过具体代码示例展示了如何使用CnComm类库进行ETC卡的读写操作。

cnComm

            DCB* pDcb = m_SerialCnCom.GetState();
            pDcb->BaudRate = 115200 ;
            pDcb->ByteSize  = 8 ;
            pDcb->StopBits = 0;
            pDcb->Parity = 0 ;

唤醒读卡器：
void CNFCReaderDlg::OnBtnWakeReader()
{
// TODO: Add your control notification handler code here
unsigned char WakeCode[]={
0x55,0x55,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0xFF,0x03,0xFD,0xD4,
0x14,0x01,0x17,0
};

if(m_bSerialCnComOpened){

    m_SerialCnCom.WritePort(WakeCode,sizeof(WakeCode));
}

}

返回数据：

00 00 FF 00 FF 00 00 00 FF 02 FE D5 15 16 00

00 00 ff 00 ff 00 00 00 ff 02 fe d5 15 16 00

Wait
len =15
00 00 FF 00 FF 00 00 00 FF 02 FE D5 15 16 00

代码： VC 控制台程序

// TestCnmmSerial.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include "CnComm.h"


class HelloComm : public CnComm
{   //! \sa CnComm::OnReceive()
    void OnReceive()
    {
        char buffer[1024];

       int len = Read(buffer,1023);

       printf("len =%d\r\n",len);

       for(int i=0;i <len;i++){

            printf("%.2X ",(unsigned char)buffer[i]);
       }

    }
};



int _tmain(int argc, _TCHAR* argv[])
{
    unsigned char  WakeCode[]={
        0x55,0x55,0,0,0,0,0,0,0,0,
            0,0,0,0,0,0,0xFF,0x03,0xFD,0xD4,
            0x14,0x01,0x17,0
    };  


    HelloComm Com;//! 默认模式 重叠IO 监视线程
    Com.Open(12, 115200);


    Com.WritePort(WakeCode,sizeof(WakeCode));

    printf("Wait\r\n");
    getchar();
    printf("Exit\r\n");
    return 0;
}