SD CARD 2.8 TFT TOUCH

Hi brilliant members here.

I feel give up with 2.8 TFT SDCARD to list all file in micro card. I just using standard sd card code and just include tftv2.h and spi.h. But still didnot have any file to appear at serial monitor. What is the problem with this standard code? Need help please.

[code]/*
SD card basic file example

This example shows how to create and destroy an SD card file
The circuit:

  • SD card attached to SPI bus as follows:
    ** MOSI - pin 11
    ** MISO - pin 12
    ** CLK - pin 13
    ** CS - pin 4

created Nov 2010
by David A. Mellis
modified 9 Apr 2012
by Tom Igoe

This example code is in the public domain.

*/
#include <SD.h>
#include <SPI.h>
#include <TFTv2.h>
Sd2Card card;
File root;

void setup()
{
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}

Serial.print(“Initializing SD card…”);
// On the Ethernet Shield, CS is pin 4. It’s set as an output by default.
// Note that even if it’s not used as the CS pin, the hardware SS pin
// (10 on most Arduino boards, 53 on the Mega) must be left as an output
// or the SD library functions will not work.
pinMode(10, OUTPUT);

card.init(SPI_FULL_SPEED,4);
if (!SD.begin(10)) {
Serial.println(“initialization failed!”);
return;
}
Serial.println(“initialization done.”);

root = SD.open("/");

printDirectory(root, 0);

Serial.println(“done!”);
}

void loop()
{
// nothing happens after setup finishes.
}

void printDirectory(File dir, int numTabs) {
while(true) {

 File entry =  dir.openNextFile();
 if (! entry) {
   // no more files
   //Serial.println("**nomorefiles**");
   break;
 }
 for (uint8_t i=0; i<numTabs; i++) {
   Serial.print('\t');
 }
 Serial.print(entry.name());
 if (entry.isDirectory()) {
   Serial.println("/");
   printDirectory(entry, numTabs+1);
 } else {
   // files have sizes, directories do not
   Serial.print("\t\t");
   Serial.println(entry.size(), DEC);
 }
 entry.close();

}
}

[/code]

Hy manmoncang ,

Have you tried to use the example code source , without including the SPI and TFTv2 Lib ?

Cause I try like this :
Arduino MEGA 2650 , TFT V2 Seed Studio Shield
The Serial Console return the following answer :


Initializing SD card...Wiring is correct and a card is present.

Card type: SD2

Volume type is FAT16

Volume size (bytes): 2029649920
Volume size (Kbytes): 1982080
Volume size (Mbytes): 1935

Files found on the card (name, date and size in bytes): 
123.BMP       2013-12-13 15:06:12 230522
HIBISCUS.BMP  2013-05-07 20:07:30 388854
TEST.TIF      2011-03-08 20:59:52 8667786
TEST.BMP      2013-12-13 15:39:18 42426

So I think the TFT V2 Shield Use the default Pins to talk to the SD card .
With This Pinout diagram :
11 MOSI
12 MISO
13 SCLK
4 CS
Let me Know if this works or not .
I use this Shield :
seeedstudio.com/depot/28-tft … th=132_134
and the standard SD card Library in Arduino IDE 1.0.5

Edit :
I read your Code , and I think one declaration is missing :

Try this in the begening of your code :

 // include the SD library:
#include <SD.h>

// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;

In your Code the line SdVolume Volume; is missing …

Here is the Standard SD card info Reader sketch I use with success :

/*
  SD card test 
   
 This example shows how use the utility libraries on which the'
 SD library is based in order to get info about your SD card.
 Very useful for testing a card when you're not sure whether its working or not.
 	
 The circuit:
  * SD card attached to SPI bus as follows:
 ** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila
 ** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila
 ** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila
 ** CS - depends on your SD card shield or module. 
 		Pin 4 used here for consistency with other Arduino examples

 
 created  28 Mar 2011
 by Limor Fried 
 modified 9 Apr 2012
 by Tom Igoe
 */
 // include the SD library:
#include <SD.h>

// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;

// change this to match your SD shield or module;
// Arduino Ethernet shield: pin 4
// Adafruit SD shields and modules: pin 10
// Sparkfun SD shield: pin 8
const int chipSelect = 4;    

void setup()
{
 // Open serial communications and wait for port to open:
  Serial.begin(9600);
   while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }


  Serial.print("\nInitializing SD card...");
  // On the Ethernet Shield, CS is pin 4. It's set as an output by default.
  // Note that even if it's not used as the CS pin, the hardware SS pin 
  // (10 on most Arduino boards, 53 on the Mega) must be left as an output 
  // or the SD library functions will not work. 
  pinMode(10, OUTPUT);     // change this to 53 on a mega


  // we'll use the initialization code from the utility libraries
  // since we're just testing if the card is working!
  if (!card.init(SPI_HALF_SPEED, chipSelect)) {
    Serial.println("initialization failed. Things to check:");
    Serial.println("* is a card is inserted?");
    Serial.println("* Is your wiring correct?");
    Serial.println("* did you change the chipSelect pin to match your shield or module?");
    return;
  } else {
   Serial.println("Wiring is correct and a card is present."); 
  }

  // print the type of card
  Serial.print("\nCard type: ");
  switch(card.type()) {
    case SD_CARD_TYPE_SD1:
      Serial.println("SD1");
      break;
    case SD_CARD_TYPE_SD2:
      Serial.println("SD2");
      break;
    case SD_CARD_TYPE_SDHC:
      Serial.println("SDHC");
      break;
    default:
      Serial.println("Unknown");
  }

  // Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
  if (!volume.init(card)) {
    Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
    return;
  }


  // print the type and size of the first FAT-type volume
  uint32_t volumesize;
  Serial.print("\nVolume type is FAT");
  Serial.println(volume.fatType(), DEC);
  Serial.println();
  
  volumesize = volume.blocksPerCluster();    // clusters are collections of blocks
  volumesize *= volume.clusterCount();       // we'll have a lot of clusters
  volumesize *= 512;                            // SD card blocks are always 512 bytes
  Serial.print("Volume size (bytes): ");
  Serial.println(volumesize);
  Serial.print("Volume size (Kbytes): ");
  volumesize /= 1024;
  Serial.println(volumesize);
  Serial.print("Volume size (Mbytes): ");
  volumesize /= 1024;
  Serial.println(volumesize);

  
  Serial.println("\nFiles found on the card (name, date and size in bytes): ");
  root.openRoot(volume);
  
  // list all files in the card with date and size
  root.ls(LS_R | LS_DATE | LS_SIZE);
}


void loop(void) {
  
}

I have some question about your amplitude current formula. You use 5 volts in your calculation but in your sensor spec the sampling voltage is between 0 and 2 Volts. Is there an update mistake in your wiki? Did I misunderstand it?

You say the problem I have encountered, which is very troublesome, annoying, hoping to improve as soon as possible!


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