lwIP UDP thoughut w/o an RTOS

Hi all,

what would be the maximum speed to send UDP packets? Right now I've reached 18 Mbit/s, but for some reason when I try to send a string all I receive on the PC's side is some ascii... I think sending data over 80Mbit/s should be possible or am I wrong?! I'm trying to send this:

******************************************************************

/*

*

* This file is for testing stand-alone (NO_SYS) LWIP

* using a RAM-based simple file system

*

*/

# include "system.h"

# include "arch/init.h"# include "lwip/ip_addr.h"# include "lwip/tcpip.h"# include "lwip/netif.h"# include "netif/lan91c111if.h"

# include "sys/alt_alarm.h"# define get_milliseconds() alt_nticks()

/* ---------- IP oriented addresses for ethernet adapter ---------- */# define IPADDR0 169# define IPADDR1 254# define IPADDR2 0# define IPADDR3 2

# define NETMASK0 255# define NETMASK1 255# define NETMASK2 0# define NETMASK3 0

# define GWADDR0 169# define GWADDR1 254# define GWADDR2 0# define GWADDR3 3

int main(void)

{

//0.6.4 struct netif *netif;

struct netif netif;

struct ip_addr ipaddr, netmask, gw;

struct ip_addr destIpAddr;

struct udp_pcb* pcb;

struct pbuf* p;

unsigned char buffer[100] = "beetje flauw\n";

unsigned char *buffPtr;

alt_avalon_lan91c111_if* dev_list_ptr = (alt_avalon_lan91c111_if*)alt_ethernet_device_list.next;

buffPtr = mem_malloc(sizeof(buffer));

memcpy(buffPtr, buffer, sizeof(buffer)); //copy's from buffer to buffer

/*

* Initialize lwip

*/

lwip_init();

printf ("Setting IP address to: %d.%d.%d.%d\n", IPADDR0, IPADDR1, IPADDR2, IPADDR3);

printf ("Setting netmask to: %d.%d.%d.%d\n", NETMASK0, NETMASK1, NETMASK2, NETMASK3);

printf ("Setting gateway address to: %d.%d.%d.%d\n", GWADDR0, GWADDR1, GWADDR2, GWADDR3);

IP4_ADDR(&ipaddr, IPADDR0, IPADDR1, IPADDR2, IPADDR3);

IP4_ADDR(&netmask, NETMASK0, NETMASK1, NETMASK2, NETMASK3);

IP4_ADDR(&gw, GWADDR0, GWADDR1, GWADDR2, GWADDR3);

//0.6.4 netif = netif_add(&ipaddr, &netmask, &gw,

netif_add(&netif, &ipaddr, &netmask, &gw,

(void*)dev_list_ptr,

lan91c111if_init,

ip_input);

//0.6.4 netif_set_default(&netif);

netif_set_default(&netif);

p = pbuf_alloc(PBUF_TRANSPORT,4096,PBUF_RAM);

p->payload = (void*)buffPtr;

IP4_ADDR(&destIpAddr, 169, 254, 0, 1);

pcb = udp_new();

udp_connect(pcb, &destIpAddr, 666);

//mem_free(buffPtr);

udp_remove(pcb);

while(1)

{

//0.6.4 lan91c111if_service(netif);

lan91c111if_service(&netif);

udp_send(pcb, p);

// printf(buffer);

}

}

******************************************************************

this is the way I am trying to send it... but it doesn't reach the pc in the right way. I even wonder if am sending this string.

Suggestions anyone?

Thanx,

Danny