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Discussion Groups | Rabbit-Semi | Need detail guidance
This is a group for folks designing and programming embedded systems using the Rabbit Semiconductor C-programmable microcontroller. Rabbit Semi is a spin-off from Z-World who makes a variety of embedded modules and tools. This group is not affiliated with either Rabbit or Z-World, but is a user forum for sharing ideas, asking questions, flaunting knowledge, and other typical user group stuff. The Rabbit is a powerful uC, supported by a full-featured C-compiler.
Need detail guidance - josan_manu1 - Sep 22 13:34:39 2009
Hello,
Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
I want data from the analog and digital cards through Ethernet.
Also wanna reset relays from GUI.
If some one has worked with such application please guide me.
Thanks,
MJ
------------------------------------
______________________________
controlSUITE™ software. Comprehensive. Intuitive. Optimized.
Real-world software for real-time control. Details Here!
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
I want data from the analog and digital cards through Ethernet.
Also wanna reset relays from GUI.
If some one has worked with such application please guide me.
Thanks,
MJ
------------------------------------
______________________________
controlSUITE™ software. Comprehensive. Intuitive. Optimized.
Real-world software for real-time control. Details Here!
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
Re: Need detail guidance - John - Sep 23 20:29:34 2009
--- In r...@yahoogroups.com, "josan_manu1" wrote:
>
> Hello,
>
> Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
>
> I want data from the analog and digital cards through Ethernet.
>
> Also wanna reset relays from GUI.
>
> If some one has worked with such application please guide me.
>
> Thanks,
> MJ
>
You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
I have a lot of experience with options 1 and 2, but not so much with number 3.
I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
------------------------------------
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
>
> Hello,
>
> Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
>
> I want data from the analog and digital cards through Ethernet.
>
> Also wanna reset relays from GUI.
>
> If some one has worked with such application please guide me.
>
> Thanks,
> MJ
>
You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
I have a lot of experience with options 1 and 2, but not so much with number 3.
I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
------------------------------------
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
Re: Need detail guidance - grandpotentateuniverse - Sep 26 8:06:35 2009
--- In r...@yahoogroups.com, "John" wrote:
>
> --- In r...@yahoogroups.com, "josan_manu1" wrote:
> >
> > Hello,
> >
> > Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
> >
> > I want data from the analog and digital cards through Ethernet.
> >
> > Also wanna reset relays from GUI.
> >
> > If some one has worked with such application please guide me.
> >
> >
> >
> > Thanks,
> > MJ
> >
> You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
>
> 1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
>
> 2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
>
> What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
>
> 3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
>
> I have a lot of experience with options 1 and 2, but not so much with number 3.
>
> I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
>
Before you get to details, start by looking at the big picture and write yourself a description of what it will do.
Serial works well for communication. I've worked with homemade protocols, but found that adopting an open standard like Modbus is a lot faster if all you are communicating is numbers. Rabbit has drivers already, and modbus.org has good free documentation.
Rabbitweb works well if your needs are simple, but gets overburdened if you want to do much with html or have a lot of data.
This is not a trivial job, but it is not rocket science either. Enjoy the work!
------------------------------------
______________________________
controlSUITE™ software. Comprehensive. Intuitive. Optimized.
Real-world software for real-time control. Details Here!
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
>
> --- In r...@yahoogroups.com, "josan_manu1"
> >
> > Hello,
> >
> > Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
> >
> > I want data from the analog and digital cards through Ethernet.
> >
> > Also wanna reset relays from GUI.
> >
> > If some one has worked with such application please guide me.
> >
> >
> >
> > Thanks,
> > MJ
> >
> You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
>
> 1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
>
> 2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
>
> What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
>
> 3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
>
> I have a lot of experience with options 1 and 2, but not so much with number 3.
>
> I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
>
Before you get to details, start by looking at the big picture and write yourself a description of what it will do.
Serial works well for communication. I've worked with homemade protocols, but found that adopting an open standard like Modbus is a lot faster if all you are communicating is numbers. Rabbit has drivers already, and modbus.org has good free documentation.
Rabbitweb works well if your needs are simple, but gets overburdened if you want to do much with html or have a lot of data.
This is not a trivial job, but it is not rocket science either. Enjoy the work!
------------------------------------
______________________________
controlSUITE™ software. Comprehensive. Intuitive. Optimized.
Real-world software for real-time control. Details Here!
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
Re: Need detail guidance - mandeep - Oct 20 12:31:31 2009
Hello,
You suggested me options to connect my GUI with Rabbit.
I am gonna communicate over a network, wired or wireless and want to handle messages with TCP/MODBUS.
I went through all the libraries and sample program for tcpip.
What I understood till now is that I have to write a Server application for my rabbit processor and
TCP client application can update the MS Access database with the help of TCP listner software written in VB and running on Host PC.
I never worked on such application before.
I read about server/client process and got the basic idea.
Application need to create the socket first.
Attach the socket to an IP address and port number.
Server can then get into a listen state and listen for incoming connections.
I am trying to make Rabbit Smartstar processor as a server.
And wanna transfer the Analog or digital data to the client computer.
Also I wanna upload the changes on the server processor through the client computer.
I have written a small application.
Doubtful how to test that, as when I run it. I can see the ACT,LNK,PWR lights blinking.
but my program is not showing any printf statements.
Please excuse if I sound wrong at some point.
Please suggest me what particular sample programs and libraries I should look at for this application.
All suggestions are welcome.
Thanks,
MJ
--- In r...@yahoogroups.com, "John" wrote:
>
> --- In r...@yahoogroups.com, "josan_manu1" wrote:
> >
> > Hello,
> >
> > Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
> >
> > I want data from the analog and digital cards through Ethernet.
> >
> > Also wanna reset relays from GUI.
> >
> > If some one has worked with such application please guide me.
> >
> >
> >
> > Thanks,
> > MJ
> >
> You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
>
> 1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
>
> 2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
>
> What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
>
> 3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
>
> I have a lot of experience with options 1 and 2, but not so much with number 3.
>
> I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
>
------------------------------------
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
You suggested me options to connect my GUI with Rabbit.
I am gonna communicate over a network, wired or wireless and want to handle messages with TCP/MODBUS.
I went through all the libraries and sample program for tcpip.
What I understood till now is that I have to write a Server application for my rabbit processor and
TCP client application can update the MS Access database with the help of TCP listner software written in VB and running on Host PC.
I never worked on such application before.
I read about server/client process and got the basic idea.
Application need to create the socket first.
Attach the socket to an IP address and port number.
Server can then get into a listen state and listen for incoming connections.
I am trying to make Rabbit Smartstar processor as a server.
And wanna transfer the Analog or digital data to the client computer.
Also I wanna upload the changes on the server processor through the client computer.
I have written a small application.
Doubtful how to test that, as when I run it. I can see the ACT,LNK,PWR lights blinking.
but my program is not showing any printf statements.
Please excuse if I sound wrong at some point.
Please suggest me what particular sample programs and libraries I should look at for this application.
All suggestions are welcome.
Thanks,
MJ
--- In r...@yahoogroups.com, "John"
>
> --- In r...@yahoogroups.com, "josan_manu1"
> >
> > Hello,
> >
> > Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
> >
> > I want data from the analog and digital cards through Ethernet.
> >
> > Also wanna reset relays from GUI.
> >
> > If some one has worked with such application please guide me.
> >
> >
> >
> > Thanks,
> > MJ
> >
> You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
>
> 1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
>
> 2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
>
> What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
>
> 3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
>
> I have a lot of experience with options 1 and 2, but not so much with number 3.
>
> I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
>
------------------------------------
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
Re: Re: Need detail guidance - mandeep kaur - Oct 21 1:33:22 2009
Hello All,
I have written this code.
I got all ideas after reading Rabbit documentation.
I found that at processor end I need to make client application and my host will be server.
#define TCPCONFIG 1
#define FILE "/"
#define PORT 7
#memmap xmem
#use "dcrtcp.lib"
//#define USE_ETHERNET
main() {
int status;
tcp_Socket s;
char buffer[2048];
longword ip;
sock_init();
//ip=resolve(WEBSITE);
tcp_open(&s,0,ip,PORT,NULL);
printf("Socket Open Successful");
When program runs it print this meassge, but not the one highlighted below.
This means that the socket establishment is not succesful. Please tell me what I am doing incorrect.
sock_wait_established(&s,0,NULL,&status);
printf("Socket Established");
if (!tcp_open(&s,0,ip,PORT,NULL))
printf("Failed to open\n");
else while(!sock_established(&s)) {
if (!tcp_tick(&s)) {
printf("Failed to establish\n");
break;
}
}
if (sock_established(&s)) {
printf("Established OK!\n");
// do whatever needs to be done...
}
printf("connection established");
sock_mode(&s,TCP_MODE_ASCII);
sprintf(buffer,"GET %s\r\n",FILE);
sock_puts(&s,buffer);
while(tcp_tick(&s)) {
sock_wait_input(&s,0,NULL,&status);
if(sock_gets(&s,buffer,2048))
printf("%s\n",buffer);
}
return 0;
//An Introduction to TCP/IP rabbit.com 31
sock_err:
switch(status) {
case 1: /* foreign host closed */
printf("User closed session\n");
break;
case -1: /* time-out */
printf("\nConnection timed out\n");
break;
}
}
MJ
________________________________
From: mandeep
To: r...@yahoogroups.com
Sent: Tue, 20 October, 2009 9:31:25 AM
Subject: [rabbit-semi] Re: Need detail guidance
Hello,
You suggested me options to connect my GUI with Rabbit.
I am gonna communicate over a network, wired or wireless and want to handle messages with TCP/MODBUS.
I went through all the libraries and sample program for tcpip.
What I understood till now is that I have to write a Server application for my rabbit processor and
TCP client application can update the MS Access database with the help of TCP listner software written in VB and running on Host PC.
I never worked on such application before.
I read about server/client process and got the basic idea.
Application need to create the socket first.
Attach the socket to an IP address and port number.
Server can then get into a listen state and listen for incoming connections.
I am trying to make Rabbit Smartstar processor as a server.
And wanna transfer the Analog or digital data to the client computer.
Also I wanna upload the changes on the server processor through the client computer.
I have written a small application.
Doubtful how to test that, as when I run it. I can see the ACT,LNK,PWR lights blinking.
but my program is not showing any printf statements.
Please excuse if I sound wrong at some point.
Please suggest me what particular sample programs and libraries I should look at for this application.
All suggestions are welcome.
Thanks,
MJ
--- In rabbit-semi@ yahoogroups. com, "John" wrote:
>
> --- In rabbit-semi@ yahoogroups. com, "josan_manu1" wrote:
> >
> > Hello,
> >
> > Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
> >
> > I want data from the analog and digital cards through Ethernet.
> >
> > Also wanna reset relays from GUI.
> >
> > If some one has worked with such application please guide me.
> >
> >
> >
> > Thanks,
> > MJ
> >
> You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
>
> 1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
>
> 2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
>
> What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
>
> 3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
>
> I have a lot of experience with options 1 and 2, but not so much with number 3.
>
> I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
>
Yahoo! India has a new look. Take a sneak peek http://in.yahoo.com/trynew
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
I have written this code.
I got all ideas after reading Rabbit documentation.
I found that at processor end I need to make client application and my host will be server.
#define TCPCONFIG 1
#define FILE "/"
#define PORT 7
#memmap xmem
#use "dcrtcp.lib"
//#define USE_ETHERNET
main() {
int status;
tcp_Socket s;
char buffer[2048];
longword ip;
sock_init();
//ip=resolve(WEBSITE);
tcp_open(&s,0,ip,PORT,NULL);
printf("Socket Open Successful");
When program runs it print this meassge, but not the one highlighted below.
This means that the socket establishment is not succesful. Please tell me what I am doing incorrect.
sock_wait_established(&s,0,NULL,&status);
printf("Socket Established");
if (!tcp_open(&s,0,ip,PORT,NULL))
printf("Failed to open\n");
else while(!sock_established(&s)) {
if (!tcp_tick(&s)) {
printf("Failed to establish\n");
break;
}
}
if (sock_established(&s)) {
printf("Established OK!\n");
// do whatever needs to be done...
}
printf("connection established");
sock_mode(&s,TCP_MODE_ASCII);
sprintf(buffer,"GET %s\r\n",FILE);
sock_puts(&s,buffer);
while(tcp_tick(&s)) {
sock_wait_input(&s,0,NULL,&status);
if(sock_gets(&s,buffer,2048))
printf("%s\n",buffer);
}
return 0;
//An Introduction to TCP/IP rabbit.com 31
sock_err:
switch(status) {
case 1: /* foreign host closed */
printf("User closed session\n");
break;
case -1: /* time-out */
printf("\nConnection timed out\n");
break;
}
}
MJ
________________________________
From: mandeep
To: r...@yahoogroups.com
Sent: Tue, 20 October, 2009 9:31:25 AM
Subject: [rabbit-semi] Re: Need detail guidance
Hello,
You suggested me options to connect my GUI with Rabbit.
I am gonna communicate over a network, wired or wireless and want to handle messages with TCP/MODBUS.
I went through all the libraries and sample program for tcpip.
What I understood till now is that I have to write a Server application for my rabbit processor and
TCP client application can update the MS Access database with the help of TCP listner software written in VB and running on Host PC.
I never worked on such application before.
I read about server/client process and got the basic idea.
Application need to create the socket first.
Attach the socket to an IP address and port number.
Server can then get into a listen state and listen for incoming connections.
I am trying to make Rabbit Smartstar processor as a server.
And wanna transfer the Analog or digital data to the client computer.
Also I wanna upload the changes on the server processor through the client computer.
I have written a small application.
Doubtful how to test that, as when I run it. I can see the ACT,LNK,PWR lights blinking.
but my program is not showing any printf statements.
Please excuse if I sound wrong at some point.
Please suggest me what particular sample programs and libraries I should look at for this application.
All suggestions are welcome.
Thanks,
MJ
--- In rabbit-semi@ yahoogroups. com, "John"
>
> --- In rabbit-semi@ yahoogroups. com, "josan_manu1"
> >
> > Hello,
> >
> > Please, can some one tell me how to interface GUI with rabbit processor code. I am making GUI in VB and using rabbit smartstar toolkit.
> >
> > I want data from the analog and digital cards through Ethernet.
> >
> > Also wanna reset relays from GUI.
> >
> > If some one has worked with such application please guide me.
> >
> >
> >
> > Thanks,
> > MJ
> >
> You have a few options, depending on system architecture. How are you going to connect your GUI (PC?) to the rabbit?
>
> 1: If it's directly, via a serial connection of some sort, then you'll be writing your message handlers for the serial code.
>
> 2: If you're goig to be communicating over a network, wired or wireless, then another option is to handle mesages over TCP or UDP.
>
> What you write your GUI code in is a matter of personal preference, and what's available for the platform you have in mind.
>
> 3: Another network option, would be to use a web interface hosted directly on the rabbit, using rabbitweb, or similar. Whether or not this is appropriate depends on what you're trying to implement in the GUI, and whether or not you consider a web interface to be a true GIU at all!
>
> I have a lot of experience with options 1 and 2, but not so much with number 3.
>
> I hope that helps, but we'll really need a bit more information about what you're trying to achieve to be more specific.
>
Yahoo! India has a new look. Take a sneak peek http://in.yahoo.com/trynew
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
RE: {Disarmed} Re: Re: Need detail guidance - Dave McLaughlin - Oct 21 2:24:17 2009
Number 1, the call to tcp_open() does not open the connection, it merely starts the
process.
I don’t see in your code what the IP address is as that line is commented out. Try using a dotted notation first before trying to do a resolve. E.g.
ip = inet_addr(“192.168.1.1”); // Get IP as a word
TCP/IP on the Rabbit is not too difficult but it does require a fair bit of code to get it working reliably. I prefer to use a state machine for connecting to the network. Here is a simplified version of what I have. I repeatedly call this code and between calls, call TCP_TICK() to make sure the TCP stuff gets done in the background.
Note that I am using UCOS with this code but it should work without this. This is not complete and is just for example use only to show a simpler way to make a connection without hanging up your code. VsState is a structure holding information about what is being sent and timeouts etc.
int SocketHandler(VsState* pVsState)
{
tcp_Socket* socket;
longword ServerIP;
uint ServerPort;
char err;
int len;
socket = pVsState->socket;
switch(pVsState->State)
{
case VS_INIT:
//
// Passive open on the socket port
//
ServerIP = inet_addr(StrServerIP); // Get IP as a word
ServerPort = atoi(StrServerPort);
if (tcp_open(socket, 0, ServerIP, ServerPort, NULL) != 0)
{
pVsState->State=VS_OPENING;
pVsState->OpenTimeout = MS_TIMER + OPEN_TIMEOUT; // x seconds to open
printf("Opening socket\n");
Server.Status = SERVER_STATUS_CONNECTING;
}
else
{
Server.Status = SERVER_STATUS_CONNECTFAILED;
pVsState->Attempts++;
if(pVsState->Attempts > MAX_ATTEMPTS)
{
pVsState->State=VS_INIT; // Go back to waiting
Server.Status = SERVER_STATUS_IDLE;
TCPIPErrorCount++; // Increment error count
return TCP_CONN_ERROR;
}
}
break;
case VS_OPENING:
//
// Wait for a connection to complete
//
if(sock_established(socket)) // || sock_bytesready(socket) >= 0)
{
pVsState->State = VS_SEND;
sock_mode(socket, TCP_MODE_BINARY);
printf("TCP/IP Connected\n");
TCPIPErrorCount = 0; // Reset the error counter
Server.Status = SERVER_STATUS_CONNECTED;
}
else
{
if(MS_TIMER > pVsState->OpenTimeout)
{
//
// Failed to open
//
printf("TCP/IP Failed Open\n");
Server.Status = SERVER_STATUS_CONNECTFAILED;
sock_abort(socket);
sock_close(socket);
pVsState->State=VS_INIT; // Go back to waiting
pVsState->Attempts++;
if(pVsState->Attempts > MAX_ATTEMPTS)
{
pVsState->State=VS_INIT; // Go back to waiting
Server.Status = SERVER_STATUS_IDLE;
TCPIPErrorCount++; // Increment error count
return TCP_CONN_ERROR;
}
OSTimeDlySec(2);
}
}
break;
case VS_SEND:
if(sock_writable(socket))
{
// Now we can send the data
pVsState->sent = sock_write(socket, pVsState->packet, pVsState->send );
if ( pVsState->sent == -1 )
{
TCPIPErrorCount++; // Increment error count
return TCP_SEND_ERROR;
}
pVsState->State = VS_RECV;
pVsState->OpenTimeout = MS_TIMER + 5000L; // Wait 5 seconds for data
}
else
{
OSTimeDly(8); // Wait 0.25 seconds before trying again
}
break;
case VS_RECV:
len = sock_bytesready(socket);
if(len > 0)
{
pVsState->rcvd = sock_read(socket, pVsState->packet, len );
if(pVsState->rcvd == -1)
{
sock_close(socket);
pVsState->State = VS_INIT;
return TCP_RECV_ERROR;
}
pVsState->State = VS_CLOSE;
}
else if (MS_TIMER > pVsState->OpenTimeout)// if X msec and still waiting
{
sock_close(socket);
pVsState->State = VS_INIT;
return TCP_CONN_ERROR;
}
break;
case VS_WAITCLOSE:
if(! sock_established(socket))
{
//
// Socket closed so go back to init
//
pVsState->State = VS_INIT;
return TCP_OK;
}
return TCP_BUSY; // return the number of bytes received
case VS_CLOSE:
sock_close(socket);
printf("TCP/IP closed\n\n");
pVsState->State = VS_WAITCLOSE;
Server.Status = SERVER_STATUS_IDLE;
TCPIPErrorCount = 0; // Reset error count
return TCP_BUSY;
break;
default:
//
// how did we get here? programming error?
//
pVsState->State=VS_INIT;
break;
}
return TCP_BUSY;
Dave...
---
Very funny Scotty, now beam down my clothes!!!
---
http://www.embeddedcomputer.co.uk
---
From: r...@yahoogroups.com [mailto:r...@yahoogroups.com] On Behalf Of mandeep kaur
Sent: 21 October 2009 12:33
To: r...@yahoogroups.com
Subject: {Disarmed} Re: [rabbit-semi] Re: Need detail guidance
Hello All,
I have written this code.
I got all ideas after reading Rabbit documentation.
I found that at processor end I need to make client application and my host will be server.
#define TCPCONFIG 1
#define FILE "/"
#define PORT 7
#memmap xmem
#use "dcrtcp.lib"
//#define USE_ETHERNET
main() {
int status;
tcp_Socket s;
char buffer[2048];
longword ip;
sock_init();
//ip=resolve(WEBSITE);
tcp_open(&s,0,ip,PORT,NULL);
printf("Socket Open Successful");
When program runs it print this meassge, but not the one highlighted below.
This means that the socket establishment is not succesful. Please tell me what I am doing incorrect.
sock_wait_established(&s,0,NULL,&status);
printf("Socket Established");
if (!tcp_open(&s,0,ip,PORT,NULL))
printf("Failed to open\n");
else while(!sock_established(&s)) {
if (!tcp_tick(&s)) {
printf("Failed to establish\n");
break;
}
}
if (sock_established(&s)) {
printf("Established OK!\n");
// do whatever needs to be done...
}
printf("connection established");
sock_mode(&s,TCP_MODE_ASCII);
sprintf(buffer,"GET %s\r\n",FILE);
sock_puts(&s,buffer);
while(tcp_tick(&s)) {
sock_wait_input(&s,0,NULL,&status);
if(sock_gets(&s,buffer,2048))
printf("%s\n",buffer);
}
return 0;
//An Introduction to TCP/IP rabbit.com 31
sock_err:
switch(status) {
case 1: /* foreign host closed */
printf("User closed session\n");
break;
case -1: /* time-out */
printf("\nConnection timed out\n");
break;
}
}
MJ
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
I don’t see in your code what the IP address is as that line is commented out. Try using a dotted notation first before trying to do a resolve. E.g.
ip = inet_addr(“192.168.1.1”); // Get IP as a word
TCP/IP on the Rabbit is not too difficult but it does require a fair bit of code to get it working reliably. I prefer to use a state machine for connecting to the network. Here is a simplified version of what I have. I repeatedly call this code and between calls, call TCP_TICK() to make sure the TCP stuff gets done in the background.
Note that I am using UCOS with this code but it should work without this. This is not complete and is just for example use only to show a simpler way to make a connection without hanging up your code. VsState is a structure holding information about what is being sent and timeouts etc.
int SocketHandler(VsState* pVsState)
{
tcp_Socket* socket;
longword ServerIP;
uint ServerPort;
char err;
int len;
socket = pVsState->socket;
switch(pVsState->State)
{
case VS_INIT:
//
// Passive open on the socket port
//
ServerIP = inet_addr(StrServerIP); // Get IP as a word
ServerPort = atoi(StrServerPort);
if (tcp_open(socket, 0, ServerIP, ServerPort, NULL) != 0)
{
pVsState->State=VS_OPENING;
pVsState->OpenTimeout = MS_TIMER + OPEN_TIMEOUT; // x seconds to open
printf("Opening socket\n");
Server.Status = SERVER_STATUS_CONNECTING;
}
else
{
Server.Status = SERVER_STATUS_CONNECTFAILED;
pVsState->Attempts++;
if(pVsState->Attempts > MAX_ATTEMPTS)
{
pVsState->State=VS_INIT; // Go back to waiting
Server.Status = SERVER_STATUS_IDLE;
TCPIPErrorCount++; // Increment error count
return TCP_CONN_ERROR;
}
}
break;
case VS_OPENING:
//
// Wait for a connection to complete
//
if(sock_established(socket)) // || sock_bytesready(socket) >= 0)
{
pVsState->State = VS_SEND;
sock_mode(socket, TCP_MODE_BINARY);
printf("TCP/IP Connected\n");
TCPIPErrorCount = 0; // Reset the error counter
Server.Status = SERVER_STATUS_CONNECTED;
}
else
{
if(MS_TIMER > pVsState->OpenTimeout)
{
//
// Failed to open
//
printf("TCP/IP Failed Open\n");
Server.Status = SERVER_STATUS_CONNECTFAILED;
sock_abort(socket);
sock_close(socket);
pVsState->State=VS_INIT; // Go back to waiting
pVsState->Attempts++;
if(pVsState->Attempts > MAX_ATTEMPTS)
{
pVsState->State=VS_INIT; // Go back to waiting
Server.Status = SERVER_STATUS_IDLE;
TCPIPErrorCount++; // Increment error count
return TCP_CONN_ERROR;
}
OSTimeDlySec(2);
}
}
break;
case VS_SEND:
if(sock_writable(socket))
{
// Now we can send the data
pVsState->sent = sock_write(socket, pVsState->packet, pVsState->send );
if ( pVsState->sent == -1 )
{
TCPIPErrorCount++; // Increment error count
return TCP_SEND_ERROR;
}
pVsState->State = VS_RECV;
pVsState->OpenTimeout = MS_TIMER + 5000L; // Wait 5 seconds for data
}
else
{
OSTimeDly(8); // Wait 0.25 seconds before trying again
}
break;
case VS_RECV:
len = sock_bytesready(socket);
if(len > 0)
{
pVsState->rcvd = sock_read(socket, pVsState->packet, len );
if(pVsState->rcvd == -1)
{
sock_close(socket);
pVsState->State = VS_INIT;
return TCP_RECV_ERROR;
}
pVsState->State = VS_CLOSE;
}
else if (MS_TIMER > pVsState->OpenTimeout)// if X msec and still waiting
{
sock_close(socket);
pVsState->State = VS_INIT;
return TCP_CONN_ERROR;
}
break;
case VS_WAITCLOSE:
if(! sock_established(socket))
{
//
// Socket closed so go back to init
//
pVsState->State = VS_INIT;
return TCP_OK;
}
return TCP_BUSY; // return the number of bytes received
case VS_CLOSE:
sock_close(socket);
printf("TCP/IP closed\n\n");
pVsState->State = VS_WAITCLOSE;
Server.Status = SERVER_STATUS_IDLE;
TCPIPErrorCount = 0; // Reset error count
return TCP_BUSY;
break;
default:
//
// how did we get here? programming error?
//
pVsState->State=VS_INIT;
break;
}
return TCP_BUSY;
Dave...
---
Very funny Scotty, now beam down my clothes!!!
---
http://www.embeddedcomputer.co.uk
---
From: r...@yahoogroups.com [mailto:r...@yahoogroups.com] On Behalf Of mandeep kaur
Sent: 21 October 2009 12:33
To: r...@yahoogroups.com
Subject: {Disarmed} Re: [rabbit-semi] Re: Need detail guidance
Hello All,
I have written this code.
I got all ideas after reading Rabbit documentation.
I found that at processor end I need to make client application and my host will be server.
#define TCPCONFIG 1
#define FILE "/"
#define PORT 7
#memmap xmem
#use "dcrtcp.lib"
//#define USE_ETHERNET
main() {
int status;
tcp_Socket s;
char buffer[2048];
longword ip;
sock_init();
//ip=resolve(WEBSITE);
tcp_open(&s,0,ip,PORT,NULL);
printf("Socket Open Successful");
When program runs it print this meassge, but not the one highlighted below.
This means that the socket establishment is not succesful. Please tell me what I am doing incorrect.
sock_wait_established(&s,0,NULL,&status);
printf("Socket Established");
if (!tcp_open(&s,0,ip,PORT,NULL))
printf("Failed to open\n");
else while(!sock_established(&s)) {
if (!tcp_tick(&s)) {
printf("Failed to establish\n");
break;
}
}
if (sock_established(&s)) {
printf("Established OK!\n");
// do whatever needs to be done...
}
printf("connection established");
sock_mode(&s,TCP_MODE_ASCII);
sprintf(buffer,"GET %s\r\n",FILE);
sock_puts(&s,buffer);
while(tcp_tick(&s)) {
sock_wait_input(&s,0,NULL,&status);
if(sock_gets(&s,buffer,2048))
printf("%s\n",buffer);
}
return 0;
//An Introduction to TCP/IP rabbit.com 31
sock_err:
switch(status) {
case 1: /* foreign host closed */
printf("User closed session\n");
break;
case -1: /* time-out */
printf("\nConnection timed out\n");
break;
}
}
MJ
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )