TI中文支持网Part Number:TMS320C6678
Ti专家你好：
有个问题想咨询一下你们，我们自研的DSP6678单板，用的是sys/bios，UDP协议收发目前是正常的，长时间测试也是正常的无丢数，但是用tcp协议一直无法正常收发，一直提示ETHERNET FRAME CHECK SEQUENCE INCORRECT ，不知道是否在nimu这个库里面有关于修改网络ECRC校验的，麻烦ti专家指导下。（底下是我的tcp代码和wireshark抓包）
void NetLineFx_tcp(UArg a0, UArg a1)
{
struct timeval to;
int recvCharLength;
int sendCharLength;
int pbuf; char *ppbuf;
HANDLE hBuffer;
structsockaddr_in sinData, cliAddr;
int err;
char ncData[4] = {1,2,3,4};//网口发送数据，测试用int bufferLength=1*1024*1024;//Allocate the file environment for this taskfdOpenSession( TaskSelf() );//Initialize the socketsendtcp = socket(AF_INET, SOCK_STREAMNC, IPPROTO_TCP);if (sendtcp == INVALID_SOCKET){
printf(" socket(socksend) failed \n");
//return -1;}//Initialize socket address in structurebzero( &sinData, sizeof(struct sockaddr_in) );sinData.sin_family = AF_INET;sinData.sin_len= sizeof( sinData );sinData.sin_port = htons(65030);//Bind the socketerr = bind (sendtcp, (struct sockaddr *)&sinData, sizeof(sinData));
if(err == 0)
printf("Send-Bind operation successfully done\n");
else
{
printf("Send-Bind operation failed errno= %d\n", fdError());
//return -1;
}
err = listen(sendtcp,100);
if(err == -1)
{
printf("Listen failed!\r\n");
}
int size1;
size1= sizeof(cliAddr);
bzero( &cliAddr, sizeof(struct sockaddr_in) );
accept(sendtcp,(struct sockaddr *)&cliAddr,&size1);
setsockopt( sendtcp, SOL_SOCKET, SO_SNDBUF, &bufferLength, sizeof( int ) );
setsockopt( sendtcp, SOL_SOCKET, SO_RCVBUF, &bufferLength, sizeof( int ) );
for(;;)
{
recvCharLength = (int)recvnc( sendtcp, (void **)&ppbuf, 0, &hBuffer );
printf("tcp receive data len %d\n",recvCharLength);
if(recvCharLength > 0)
{
recvncfree( hBuffer );
sendCharLength = (int)send( sendtcp, ncData , 16 , 0);
}
else
{
printf("FINISHED\n");
break;
}
}
fdClose(sendtcp);
}
JohnieSi1：
帧校验一直有问题 只要打开网络调试助手 发送数据wireshark抓包都是现在帧校验全部是0 无法正常收发
,
JohnieSi1：
DSP6678 tcp做服务器端，pc做客户端
,
JohnieSi1：
问题已解决 ！！！！
