TCP Client Problem
Hi
I'm using netconn api library to make tcp server and client on stm32f746
Tcp server works properly but client can not connect to server and it returns error code -4 (err1) which means routing problem
I don't understand the reason
here is my code
struct netconn *conn, *newconn;
err_t err, recv_err, err1;
struct netbuf *buf, *mybuf;
ip_addr_t DestIPaddr;
ip_addr_t LocalIPaddr;
ip_addr_t ipaddr_server;
ip_addr_t ipaddr_client;
static unsigned short port;
char *data;
/* Create a new TCP connection handle */
conn = netconn_new(NETCONN_TCP); // create new TCP connection
if (conn!= NULL)
{
IP4_ADDR(&DestIPaddr,192,168,1,31);
err1 = netconn_connect(conn, &DestIPaddr,8234);
printf("%d",err1);
netconn_bind(conn, &ipaddr_client, 3262);
if (err1 == ERR_OK)
{
/* Put the connection into LISTEN state */\
printf("Hooray! %d",configUSE_TIME_SLICING);
while(1)
{
mybuf = netbuf_new();
data = netbuf_alloc(mybuf, 10);
/* create some arbitrary data */
for(int i = 0; i < 10; i++)
{
data[i] = i;
}
/* send the arbitrary data */
recv_err = netconn_recv(conn, &buf);
if (recv_err == ERR_OK)
{
data[0] ++;
}
err = netconn_send(conn, mybuf);
if( err == ERR_OK)
{
printf("send successfully");
}
netbuf_delete(mybuf);
osDelay(1);
}
}
}