I HAVE CHANGED LWIP SETTING TO DEFAULT LEAVING PFUFSIZE 1024 AND TCP REC FUNCTION CHANGE AS IN EXAMPLE BUT ISSUE REMAINS SAME ACK RETRANSMISSION COMING AGAIN REST CODE SAME
SETTING OF LWIP NOT ABLE TO GET CORRECT HOPE TO GET ANY SOLUTION
static err_t tcp_echoclient_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err)
{
struct echoclient *es;
err_t ret_err;
u16_t i,checklen,j;//copied
//unsigned char buffert[8192];//copied
// u8_t buffert[13900];//copied
LWIP_ASSERT("arg != NULL",arg != NULL);
es = (struct echoclient *)arg;
// if we receive an empty tcp frame from server => close connection
if (p == NULL)
{
// remote host closed connection //
es->state = ES_CLOSING;
if(es->p_tx == NULL)
{
// we're done sending, close connection //
tcp_echoclient_connection_close(tpcb, es);
}
else
{
// send remaining data//
tcp_echoclient_send(tpcb, es);
}
ret_err = ERR_OK;
}
// else : a non empty frame was received from echo server but for some reason err != ERR_OK //
else if(err != ERR_OK)
{
// free received pbuf//
if (p != NULL)
{
pbuf_free(p);
}
ret_err = err;
}
else if(es->state == ES_CONNECTED)
{
// increment message count //
message_count++;
// Acknowledge data reception //
tcp_recved(tpcb, p->tot_len);
j=0; //CODE ADDED BY ME
do
{checklen=p->len;
for(i=0;i<checklen;i++)
{ //HAL_GPIO_WritePin(GPIOE,GPIO_PIN_0,GPIO_PIN_RESET);//SYNC LED ON
buffert[j]=*(int *)p->payload
datasrno++;
j++;
p->payload++;
}
if(p->next==NULL)
{
break;
}
p=p->next;
}while(p!=NULL);
// buffert[j]='\0';
//rxtcp();//rx packet process
pbuf_free(p);
// if(p!=NULL)
// {pbuf_free(p);}
//if (es != NULL)
// {
// mem_free(es);
// }
// tcp_echoclient_connection_close(tpcb, es);//*******CHANGED BY ME AS CONTINUOS DATA TO BE RECEIVED
// tcp_echoclient_connect();
ret_err = ERR_OK;
}
// data received when connection already closed //
else
{
// Acknowledge data reception //
tcp_recved(tpcb, p->tot_len);
// free pbuf and do nothing //
pbuf_free(p);
ret_err = ERR_OK;
}
return ret_err;
}*/
Thanks for reply
I have checked version it is updated and #define ETH_RX_BUF_SIZE 1536 seems ok
Issue still remains unsolved still i am finding solution
Thanks
Regards
