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haseeb
Joined: 27 Apr 2011
Posts: 19
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| How to transfer text files between pic18f2620 & ftp ser |
 Posted: Thu Jun 16, 2011 5:50 am |
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hello
I'm planning on a new project.
I want to setup a simple ftp communication from the pic to an ftp server.
Data to be sent will be simple txt files and no picture.
The pic is a PIC18F2620. I plan on using a GPRS modem that can support ftp protocol such as the Cinterion BG2 wireless module.
I will be using the CCS compiler.
Please can someone point me in the right direction on how to achieve
this task?
Haseeb |
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temtronic
Joined: 01 Jul 2010
Posts: 9163
Location: Greensville,Ontario
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| Posted: Thu Jun 16, 2011 7:36 am |
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| google ! |
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haseeb
Joined: 27 Apr 2011
Posts: 19
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| Posted: Thu Jun 16, 2011 8:36 am |
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I have googled it and could not find a 'point in the direction' sort
of link.
Can anyone please help me?
Haseeb |
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temtronic
Joined: 01 Jul 2010
Posts: 9163
Location: Greensville,Ontario
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| Posted: Thu Jun 16, 2011 9:36 am |
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googled 'PIC C code ftp server program' and came up with 900,000 + hits
several in the top 50 are GREAT resources for you..
others might be as well...
Since I have no real idea as to what you really want or need , I suggest you look at some of the 900,000 hits from above as what I think you want has been done a zillion times before,maybe not with your exact hardware but it's not 'rocket science' as the saying goes. |
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haseeb
Joined: 27 Apr 2011
Posts: 19
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| Posted: Thu Jun 16, 2011 9:59 am |
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ok thank you so much, i will do what you have said and if needed
will get back to....thanks ever so much with your help.
Haseeb |
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haseeb
Joined: 27 Apr 2011
Posts: 19
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| Posted: Thu Sep 08, 2011 5:51 am |
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Hello
I have now managed to read in 'OK' replies from the modem successfully and I have confirmed this with the texting
mode as that works brilliantly. I can read in modem replies successfully via hyper terminal.
Anyway my main problem is with ftp and I’m enclosing in the program code for you all to have a look at.
Basically I just want to send some data (byte or a string) from my PIC to my ftp site and would like to have that
appear in the ftp root directory as a standard txt file.
From my source code, going all the way down and just before ‘problem 1’, I’m getting OK replies from the modem.
But from ‘Problem 1 ’ and ‘Problem 2’ I’m getting ERROR messages. I’m using CCS compiler and PIC18F2620 with internal
OSC @ 4MHz. The modem im using is the Cinterion BG2 modem and it supports ftp.
Please can you help me to achieve this ftp task.
Thank you
Haseeb
| Code: |
#include <18F2620.h>
#fuses INTRC_IO,NOWDT,NOPROTECT,NOLVP,NOPUT, NOPBADEN
// Set Speed to 4Mhz
#use delay(clock=4000000)
// RS232 to Modem
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_B5, STREAM=Modem)
// RTS232 to User Port
#use rs232(baud=9600, xmit=PIN_B4, rcv=PIN_C7, STREAM=User)
void Main (void)
{
char char1; //variable to store the modem ASCII incoming byte
//configure I/O directions
set_tris_A(0b00000001);
set_tris_B(0b00100111);
set_tris_C(0b11011000);
disable_interrupts(GLOBAL); // disable all interupts
delay_ms(100); //startup delay
//turning off all LEDs
output_low(pin_A1);
output_low(pin_A2);
output_low(pin_A3);
output_low(pin_A4);
//Powering up modem...
output_high(pin_C1); // Turn on Regulator
output_high(pin_C5); // Turn on Pwrkey
Delay_ms(1000); // wait 3 sec
output_low(pin_C5); // Turn off Pwrkey
Delay_ms(3000); // wait 3 sec
output_high(pin_C5); // Turn on Pwrkey
delay_ms(30000); // wait for modem to establish connection
//modem power up indicator
output_high(pin_A1);
delay_ms(500);
output_low(pin_A1);
// configure apn.......
fprintf(Modem,"AT^SICS=0,conType,GPRS0\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SICS=0,apn,\"greeninternet\"\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SICS=0,user,userid\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SICS=0,passwd,2110\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
// configure internet sevice..........
fprintf(Modem,"AT^SISS=0,srvType,none\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SISS=0,srvType,ftp\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SISS=0,alphabet,1\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SISS=0,conId,0\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SISS=0,tcpMR,3\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SISS=0,tcpOT,3000\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
fprintf(Modem,"AT^SISS=0,address,\"ftp://232.127.159.192;type=d\"\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(100);
break;
}
}
// connnect to service...........
fprintf(Modem,"AT^SISO=0\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
if(char1 == 'K')
{
fprintf(User,"%c",char1); // print to screen
delay_ms(5000);
break;
}
}
//problem 1
fprintf(Modem,"AT^SISS=0,address,\"ftp://232.127.159.192/haseeb;type=a\"\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
//if(char1 == 'K')
//{
fprintf(User,"%c",char1); // print to screen
// delay_ms(100);
// break;
//}
}
//problem 2
// wait for urc then receive some data.........
fprintf(Modem,"at^sisr=0,1500\r\n");
while(TRUE)
{
while(!kbhit(Modem)); //wait for char in USART buffer
char1 = fgetc(Modem); // get user input
//if(char1 == 'K')
//{
fprintf(User,"%c",char1); // print to screen
// delay_ms(100);
// break;
//}
}
// close connection.........
//at^sisc=0
while(TRUE); //stay here forever
}
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temtronic
Joined: 01 Jul 2010
Posts: 9163
Location: Greensville,Ontario
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| Posted: Thu Sep 08, 2011 6:47 am |
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a few comments...
get rid of the set_tris().. code ! Unless you're an experienced programmer, those commands will 'get you' sooner or later. Let the compiler automatically handle it !!
you need ISRs WITH ring buffers to make real progress. CCS supplies working examples in the example folder.
be aware that during all delay_ms(nnn) functions the PIC will do NOTHING but waste time,so you need to have ISRs for the serial ports else you will miss data.
also always add ERRORS to the use rs232(options), else the UART will 'hang' after 2 characters come in.
be sure to have current limiting resistors for all LEDs. 'Funny' things can happen without them !! |
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