Re: Re: rabbit 5000 tcp client ucosII

You have to look at the stack usage by the task function, and add in the stacks of each function it calls, and the functions they call, etc.  And then add in the largest stack of your interrupt routines.

For functions that make deep library calls, it's often easier to size your stack large, fill it with some fixed value, and then check it after your program runs for a long time.  You should be able to see how much of the stack went untouched, and adjust the stack size accordingly.

-Tom


On Jan 26, 2013, at 5:52 AM, gangben wrote:

> Thank you but I am quite sure that I have no new line in between it but tomorrow I'll check this.
> 
> Is there any forumla to see how much storage I have to provide for a ucos task? 
> 
> greetings 
> ben
> 
> --- In [email protected], Tom Collins wrote:
> >
> > Your stack for the tcp task is too small. The safest is to use a 4KB stack, especially with DHCP. I believe the current DC 10 releases are better about stack usage, so you could possibly get away with a 2KB stack for the TCP task. I can almost guarantee that 512 bytes isn't enough.
> > 
> > -Tom
> > 
> > 
> > On Jan 24, 2013, at 5:11 AM, gangben wrote:
> > 
> > > Hi guys I want to write a tcp client with the rabbit.
> > > 
> > > It has a simple functionallity it shall connect to a nodeJS server via
> > > localnetwork and send the input from the uart interface.
> > > 
> > > In my example here I start ucosII and have 2 tasks one that is counting
> > > just some numbers and the other one shall keep the tcp connection alive
> > > with tcp_tick();
> > > But here comes my problem it always says to me that the rabbit cannot
> > > open the tcp connection, tcp_open() fails
> > > 
> > > What am I doing wrong?
> > > 
> > > #define USE_LINKLOCAL
> > > #define TCPCONFIG 1
> > > #define _PRIMARY_STATIC_IP "192.168.1.2"
> > > #define _PRIMARY_NETMASK "255.255.255.0"
> > > #define MY_GATEWAY "192.168.1.1"
> > > #define MY_NAMESERVER "0.0.0.0"
> > > 
> > > #define TARGET 
> > > "192.168.1.222"
> > > #define PORT 2222
> > > 
> > > #define AINBUFSIZE 63
> > > #define AOUTBUFSIZE 127
> > > #define BINBUFSIZE 63
> > > #define BOUTBUFSIZE 127
> > > #define CINBUFSIZE 63
> > > #define COUTBUFSIZE 127
> > > #define DINBUFSIZE 63
> > > #define DOUTBUFSIZE 127
> > > 
> > > //important macro for the tcp connection
> > > #memmap xmem
> > > 
> > > //libraries----------------------------------------------------------\
> > > --------
> > > 
> > > #use "dcrtcp.lib"
> > > #use "net.lib"
> > > #use "tcp.lib"
> > > #use "ucos2.lib"
> > > 
> > > //prototypes----------------------------------------------------------\
> > > --------
> > > 
> > > //main----------------------------------------------------------\
> > > --------
> > > 
> > > void print_task(void* ptr){
> > > int i = 0;
> > > while(1){
> > > printf("%d\n", i);
> > > i++;
> > > OSTimeDly(100);
> > > }
> > > }
> > > 
> > > void tcpConnect(void* ptr){
> > > static tcp_Socket socket;
> > > longword target_ip;
> > > 
> > > if( 0L == (target_ip = resolve(TARGET)) ) {
> > > printf( "ERROR: Cannot resolve \"%s\" into an IP
> > > address\n", TARGET );
> > > exit(2);
> > > }
> > > 
> > > puts("ip address resolved\n");
> > > 
> > > if(!tcp_open(, 0, target_ip, 2222, NULL)){
> > > puts("tcp_open() failed\n");
> > > }
> > > 
> > > puts("Waiting for establishment\n");
> > > 
> > > while(!sock_established() sock_bytesready()==-1){
> > > tcp_tick();
> > > puts(sockstate());
> > > puts("\n");
> > > }
> > > 
> > > while(1){
> > > tcp_tick();
> > > }
> > > 
> > > }
> > > 
> > > main()
> > > {
> > > OSInit();
> > > sock_init();
> > > 
> > > OSTaskCreate(print_task, NULL, 64,1);
> > > OSTaskCreate(tcpConnect, NULL, 512,0);
> > > 
> > > OSStart();
> > > }//end of main
> > > 
> > > Thank you I hope you can help me
> > > 
> > >
> >
> 
>