Hi,I have successfully implemented Client-Server model using lwIP Raw API, I
can connect to my Server which is my PC( a small server program is running so
that i can use telnet command to get connected to it from normal PC and can
write to it by typing from the key board). In the same way I have made my FPGA
to work as client. With my code I can connect it to the server, which i can see
on the server side that my client is connected. Now my problem is that I could
not write to the server. Here is the piece of code which does the job of
writing to the server......static err_t client_connected(void *arg, struct
tcp_pcb *tpcb, err_t err){ char string[] = "Hello!";
LWIP_UNUSED_ARG(arg); err_t ret_val;
if(err != ERR_OK) printf("\n client connected(): err argument not set to
ERR_OK, but the value is %d\n", err);
else { tcp_sent(tpcb, client_sent); printf("Sucess\n");
ret_val = tcp_write(tpcb, &string, sizeof(string), 1);
printf("ret_val = %d", ret_val); tcp_output(tpcb); } return err;}
I am getting the value of ret_val = 0.But the problem is that I could not print
the string "Hello!" to the server. Where am I making my mistake.Regards,TG
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