FreeRTOS Support Archive
The FreeRTOS support forum is used to obtain active support directly from Real
Time Engineers Ltd. In return for using our top quality software and services for
free, we request you play fair and do your bit to help others too! Sign up
to receive notifications of new support topics then help where you can.
This is a read only archive of threads posted to the FreeRTOS support forum.
The archive is updated every week, so will not always contain the very latest posts.
Use these archive pages to search previous posts. Use the Live FreeRTOS Forum
link to reply to a post, or start a new support thread.
[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [April 2010 Threads] str912 + lwip + freertos5.0.2Posted by telkim on April 1, 2010 I use freertos version 5.0.2 and lwip.
target board program following code for server
1. calling founction
void vBasicWEBServer( void *pvParameters ) // basicweb.c { unsigned char pcMessageToExchange[] = "\n init socket\r\n";
struct ip_addr xIpAddr, xNetMast, xGateway; extern err_t ethernetif_init( struct netif *netif );
/* Parameters are not used - suppress compiler error. */ ( void ) pvParameters;
/* Create and configure the EMAC interface. */ IP4_ADDR( &xIpAddr, emacIPADDR0, emacIPADDR1, emacIPADDR2, emacIPADDR3 ); IP4_ADDR( &xNetMast, emacNET_MASK0, emacNET_MASK1, emacNET_MASK2, emacNET_MASK3 ); IP4_ADDR( &xGateway, emacGATEWAY_ADDR0, emacGATEWAY_ADDR1, emacGATEWAY_ADDR2, emacGATEWAY_ADDR3 ); netif_add( &EMAC_if, &xIpAddr, &xNetMast, &xGateway, NULL, ethernetif_init, tcpip_input );
/* make it the default interface */ netif_set_default( &EMAC_if );
/* bring it up */ netif_set_up(&EMAC_if);
vSerialPutString( 0, pcMessageToExchange, strlen( pcMessageToExchange ) ); /* Initialize HTTP */ // httpd_init(); //kcs
kcs_server(); // kcs
/* Nothing else to do. No point hanging around. */ vTaskDelete( NULL ); }
void kcs_server() // httpd.c {
struct tcp_pcb *pcb;
pcb = tcp_new();
tcp_bind(pcb, IP_ADDR_ANY,2000);
tcp_arg(pcb,NULL);
pcb = tcp_listen(pcb);
tcp_accept( pcb, helloworld_accept); }
void helloworld_accept( void *arg, struct tcp_pcb *pcb, err_t err) // kcs {
int i,j;
vSerialPutString( 0, "accept\r\n", 10 );
vSerialPutString( 0, "read\r\n", 8 ); tcp_err(pcb,conn_err); // 2010.3.4 kim tcp_recv(pcb, kcs_receive);
for(j = 0; j < 1; j++) { vSerialPutString( 0, "write\r\n", 9 ); tcp_write(pcb, GREETING, strlen(GREETING),1); for( i = 0; i < 100;i++) ; }
}
err_t kcs_receive(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err) // kcs { int i;
vSerialPutString( 0, "receive\r\n", 11);
if( p != NULL) {
tcp_recved(pcb,p->tot_len); // add kcs 2010.3.4
vSerialPutString( 0, p->payload, p->tot_len ); err = tcp_write(pcb,p->payload,p->tot_len ,1); } else if( err == ERR_OK) { vSerialPutString( 0, "socket close\r\n", 16 ); tcp_close(pcb); }
err = tcp_write(pcb,p->payload,p->len,1);
}
Above code run 8 times packet and ping reply, but don't run 9 times. and ping don't reply why did it run?
RE: str912 + lwip + freertos5.0.2Posted by Richard on April 1, 2010 Sorry, but I have no idea and cannot read the code very easily. I would guess either a problem in your Ethernet driver, or you are not freeing memory buffers and so are simply running out of buffers. I think you would have to switch on some of the debugging/logging in lwIP to see why it stops running.
Also, the lwIP mailing list is a very active place to get lwIP specific support.
Regards.
Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.
|