Content originally posted in LPCWare by ccrbs on Thu Jul 25 06:35:46 MST 2013
Using tcpecho and udpecho to make tcp/udp serve, the sample can work together with freertos and lwip. I start to make tcp client. I add the following thread for it, but it can not setup a connection with PC(tcp serve). I found that I get the err=-10 after run function:netconn_connect. who can help to answer it or give the client sample code?
Mani thanks!
void tcp_client_thread(void *arg)
{
struct netconn *conn;
struct netbuf *TCPNetbuf;
err_t myerr;
char Text[]="hello i am client!";
static struct ip_addr serverip;
static unsigned short serverport;
serverip.addr = htonl(0xC0A9015A); //192.161.1.90
serverport=60000;
conn = netconn_new(NETCONN_TCP);
netconn_bind(conn,NULL,60000);
/* About a 1/7s delay */
vTaskDelay(configTICK_RATE_HZ / 14);
printf("\033[2JTCP connect....\n");
myerr=netconn_connect(conn,&serverip,serverport);
if(myerr==ERR_OK)
{
printf("\033[2JTCP connect ok\n");
}else{
printf("\033[2JTCP connect err=%d\n",myerr);
}
TCPNetbuf =netbuf_new();
// netbuf_alloc(TCPNetbuf, 40);
netbuf_ref(TCPNetbuf,Text,sizeof(Text));
while(1)
{
/* About a 1s delay */
vTaskDelay(configTICK_RATE_HZ);
netconn_send(conn,TCPNetbuf);
netconn_write(conn,(void *)&Text,sizeof(Text),NETCONN_NOCOPY);
vTaskDelay(configTICK_RATE_HZ / 14);
}
}
