[En-Nut-Discussion] Problem with NutUdpReceiveFrom

[Petr Halas]

Thanks to all for advices ...

I change code to:
-- snip ---------------------------------------------------
     while((buf = NutHeapAlloc(DATA_BUF)) == 0) {
         fprintf(uart0,"heap is full\n");
     }

     fprintf(uart0,"buf: 0x%04x\n", buf);
     fprintf(uart0,"sizeof(buf): 0x%04x\n", DATA_BUF);


     for(;;) {

         if((len = NutUdpReceiveFrom(sock, &address, &port, buf, 
DATA_BUF-1, 50000)) > 0) {
             fprintf(uart0,"len: 0x%04x\n", len);
             buf[len] = 0;
	        fprintf(uart0,"%s\n",buf);
         }

         NutThreadYield();
     }    // end for
---  snip --------------------------------------------------------

In OS version 3.2.1 not working (when arrive packet, not return from 
NutUdpReceiveFrom and reboot)

In OS 3.0.1 working fine.

Thanks Petr

Petr Halas wrote:
> Hi,
> I have this code on Ethernut OS 3.2.1:
> 
> --- snip ----------------------------------------------
> THREAD(UDPsetup, arg)
> {
>     UDPSOCKET    *sock;
>     char         *buf;
>     int          len;
>     u_long       address;
>     u_short      port;
> 
>     NutSleep(2000);
>     sock = NutUdpCreateSocket(9999);
>     buf = NutHeapAlloc(512);
> 
>     for(;;) {
>         if((len = NutUdpReceiveFrom(sock, &address, &port, buf,
> sizeof(buf), 50000)) > 0) {
>             buf[len] = 0;
>         fprintf(uart0,"%s\n",buf);
>         }
> 
>         NutThreadYield();
>     }
> 
>     NutHeapFree(buf);
> }
> 
> --- snip ----------------------------------------------
> 
> When any UDP packet arrive Ethernut OS do reboot.
> Can anybody help me with this problem?
> 
> Thanks Petr
> 
> 
> 
> _______________________________________________
> En-Nut-Discussion mailing list
> En-Nut-Discussion at egnite.de
> http://www.egnite.de/mailman/listinfo/en-nut-discussion
> 
>