M52233DEMO - NicheLite and UDP message

[BiOs]

Hi,

I am looking for a sample code of how to configure the cpu + basic send / receive UDP function. My start code is the Firmware and Lab Directory Structure, without FreeScale WebServer. The last part of the Main function was replaced by code to send a simple UDP packet.

prep_modules ();
netmain_init ();

data_pkt=udp_alloc(sizeof (data),0);
if (data_pkt==NULL)
  printf("trouble allocating packet");
 
memcpy(data_pkt->nb_prot, data, sizeof(data));
data_pkt->nb_plen =sizeof (data);
data_pkt->fhost   =(0x96A53C2C);
udp_send(3941, 3941, data_pkt);

When the netmain_init function is called the following error appears.

Running ColdFire TCP/IP-Lite stack                                 

Copyright 2006 by Freescale Semiconductor Inc.                                             
Use of this software is controlled by the agreement                                                  
found in the project LICENSE.H file.                                   
Built on May 23 2007 17:20:56                            

etheraddr = 00B:BA:01:02                       

Staring ns         
Acess rror -- PC = 00015                       
Attempted wieto write-prtectedsae                                
Acces Error -- PC              
Attempted wieto write-prtectedsae                                
Acces Error -- PC = 00015                        
Attempted wieto write-prtected spc                                 
Acess rror -- PC = 00015                       
Attempted wieto write-proteced space                                   
Access Error -PC = 0x0000155       

[]'s

Bruno

http://www.freescale.com/webapp/sps/download/license.jsp?colCode=FWLABSDIR&prodCode=MCF52233&nodeId=...

[pnordby]

Is there a call to mheap_init() in there? I suspect it's either missing or called with flash memory as input address.