Ragazzi non riesco a collegarmi al mio ftp su altervista.
Uso lo sketch del playground:
/*
FTP passive client for IDE v1.0.1 and w5100/w5200
Posted October 2012 by SurferTim
Modified 6 June 2015 by SurferTim
*/
#include <SD.h>
#include <SPI.h>
#include <Ethernet.h>
// comment out next line to write to SD from FTP server
#define FTPWRITE
// this must be unique
byte mac[] = { 0x90, 0xA2, 0xDA, 0x01, 0x59, 0x67 };
// change to your network settings
IPAddress ip( 192, 168, 1, 173 );
IPAddress gateway( 192, 168, 1, 254 );
IPAddress subnet( 255, 255, 255, 0 );
// change to your server
IPAddress server(138, 201, 86, 230);
EthernetClient client;
EthernetClient dclient;
char outBuf[128];
char outCount;
// change fileName to your file (8.3 format!)
char fileName[13] = "test.txt";
void setup()
{
Serial.begin(9600);
digitalWrite(10, HIGH);
if (SD.begin(53) == 0)
{
Serial.println(F("SD init fail"));
}
Ethernet.begin(mac, ip, gateway, gateway, subnet);
digitalWrite(10, HIGH);
delay(2000);
Serial.println(F("Ready. Press f or r"));
}
void loop()
{
byte inChar;
inChar = Serial.read();
if (inChar == 'f')
{
if (doFTP()) Serial.println(F("FTP OK"));
else Serial.println(F("FTP FAIL"));
}
if (inChar == 'r')
{
readSD();
}
}
File fh;
byte doFTP()
{
#ifdef FTPWRITE
fh = SD.open(fileName, FILE_READ);
#else
SD.remove(fileName);
fh = SD.open(fileName, FILE_WRITE);
#endif
if (!fh)
{
Serial.println(F("SD open fail"));
return 0;
}
#ifndef FTPWRITE
if (!fh.seek(0))
{
Serial.println(F("Rewind fail"));
fh.close();
return 0;
}
#endif
Serial.println(F("SD opened"));
if (client.connect(server, 21)) {
Serial.println(F("Command connected"));
}
else {
fh.close();
Serial.println(F("Command connection failed"));
return 0;
}
if (!eRcv()) return 0;
client.println(F("USER *****"));
if (!eRcv()) return 0;
client.println(F("PASS ****"));
if (!eRcv()) return 0;
client.println(F("SYST"));
if (!eRcv()) return 0;
client.println(F("Type I"));
if (!eRcv()) return 0;
client.println(F("PASV"));
if (!eRcv()) return 0;
char *tStr = strtok(outBuf, "(,");
int array_pasv[6];
for ( int i = 0; i < 6; i++) {
tStr = strtok(NULL, "(,");
array_pasv[i] = atoi(tStr);
if (tStr == NULL)
{
Serial.println(F("Bad PASV Answer"));
}
}
unsigned int hiPort, loPort;
hiPort = array_pasv[4] << 8;
loPort = array_pasv[5] & 255;
Serial.print(F("Data port: "));
hiPort = hiPort | loPort;
Serial.println(hiPort);
if (dclient.connect(server, hiPort)) {
Serial.println(F("Data connected"));
}
else {
Serial.println(F("Data connection failed"));
client.stop();
fh.close();
return 0;
}
#ifdef FTPWRITE
client.print(F("STOR "));
client.println(fileName);
#else
client.print(F("RETR "));
client.println(fileName);
#endif
if (!eRcv())
{
dclient.stop();
return 0;
}
#ifdef FTPWRITE
Serial.println(F("Writing"));
byte clientBuf[64];
int clientCount = 0;
while (fh.available())
{
clientBuf[clientCount] = fh.read();
clientCount++;
if (clientCount > 63)
{
dclient.write(clientBuf, 64);
clientCount = 0;
}
}
if (clientCount > 0) dclient.write(clientBuf, clientCount);
#else
while (dclient.connected())
{
while (dclient.available())
{
char c = dclient.read();
fh.write(c);
Serial.write(c);
}
}
#endif
dclient.stop();
Serial.println(F("Data disconnected"));
if (!eRcv()) return 0;
client.println(F("QUIT"));
if (!eRcv()) return 0;
client.stop();
Serial.println(F("Command disconnected"));
fh.close();
Serial.println(F("SD closed"));
return 1;
}
byte eRcv()
{
byte respCode;
byte thisByte;
while (!client.available()) delay(1);
respCode = client.peek();
outCount = 0;
while (client.available())
{
thisByte = client.read();
Serial.write(thisByte);
if (outCount < 127)
{
outBuf[outCount] = thisByte;
outCount++;
outBuf[outCount] = 0;
}
}
if (respCode >= '4')
{
efail();
return 0;
}
return 1;
}
void efail()
{
byte thisByte = 0;
client.println(F("QUIT"));
while (!client.available()) delay(1);
while (client.available())
{
thisByte = client.read();
Serial.write(thisByte);
}
client.stop();
Serial.println(F("Command disconnected"));
fh.close();
Serial.println(F("SD closed"));
}
void readSD()
{
fh = SD.open(fileName, FILE_READ);
if (!fh)
{
Serial.println(F("SD open fail"));
return;
}
while (fh.available())
{
Serial.write(fh.read());
}
fh.close();
}
Il mio dubbio riguarda l'ip address del server
IPAddress server(138, 201, 86, 230);
che ho ricavato tramite "ping" visto che non è fornito direttamente.
Come hardware uso un arduino mega e la shield ethernet montata sopra.
L'errore che ho è "Command connection failed"
La scheda funziona dato che riesco a fare un'altro sketch d'esempio (quello in cui si connette a google).
Cosa posso aver sbagliato?
