SD Files [SOLVED]

[Dale Jennings]

Is there a way to access the files on the micro SD card on the Ethernet card with out having to take the stack apart ??

[Fernando Garcia]

Hi!

Use this code:

Code: Select all

#include <SdFat.h>

const int chipSelect = 5;     // For Ferduino Mega 2560
//const int chipSelect = 4;   // For ethernet shield

Sd2Card card;
SdFile file;
SdFile root;
SdVolume volume;

char *arquivo[11] = {"LOGTDIA.TXT", "LOGPDIA.TXT", "LOGODIA.TXT", "LOGDDIA.TXT", "LOGRDIA.TXT", "HDP1.TXT", "HDP2.TXT", "HDP3.TXT", "HDP4.TXT", "HDP5.TXT", "HDP6.TXT"};

void setup()
{
  int data;
  Serial.begin(9600);

  card.init(SPI_QUARTER_SPEED, chipSelect);
  volume.init(&card);
  root.openRoot(&volume);

  while(!Serial)
  {
    ; // wait for serial.
  }
  for(int i = 0; i < 11; i++)
  {
    if(file.open(&root, arquivo[i], O_READ))
    {
      Serial.print("Reading ");
      Serial.print(arquivo[i]);
      Serial.println(" ...");
      Serial.println("*******************************");
      delay(2000);
      while ((data = file.read()) >= 0)
       {
         Serial.write(data);
        }
      file.close();
      Serial.println("Finished!");
      Serial.println("******************************");
      Serial.println();
    }
    else
    {
      Serial.print("Can't open ");
      Serial.print(arquivo[i]);
      Serial.println(" !");
      Serial.println("******************************");
      Serial.println();
      delay(2000);
    }
  }
}

void loop()
{
}


Best regards.

[Dale Jennings]

is there a way to use that sketch with out clearing the eeprom that is running the Ferduino sketch on it now?? I am not even sure if I am logging all the different things I am suppose to will have to look in to it more over this weekend

[Fernando Garcia]

Hi!

What's the a reason to clear the EEPROM after use a code that no changes any value saved?

You can see some "#include <EEPROM.h>" or "EEPROM.write()" on code?

Best regards.

[Dale Jennings]

no I do not see any "#include <EEPROM.h>" or "EEPROM.write()" just don't understand how to use this code with out deleting what I have on the arduino now then uploading that new code use it then EEPROM.clear then reupload the Ferduino code if there is a better way then please teach me so other users will read it and be able to benefit.

[Fernando Garcia]

The answer is simple.

You NEVER need clear the EEPROM after use any code that no changes the values saved.

[Dale Jennings]

worked out very well for me all the files are there just the last 6 could not be open
Thank you for teaching me this