/*==============================================================
 File........JP Serial MMC/SD Module Test code for Arduino
 Purpose.....This test code for JP MMC/SD Module
 MCU.........ATmega328
 Auther......Jianping Sun
 Website.....www.JianpingUSA.com
 Email.......JP@JianpingUSA.com
 Started.....Jan. 3, 2011
 Updated.....
 Note: The module Rx <===> Tx of Arduino
==============================================================*/
const int StatePin = 7; 
int StateVal = LOW; 
char FileName[13] = "JPMOD000TXT!";
void setup()
{
  Serial.begin(2400);              //J1 and J2 are connected.
  pinMode(StatePin, INPUT);	
  delay(2000);
/*==============================================================
                 Format MMC/SD Card with FAT16
    Warning: Format will erase ALL data on your MMC/SD card!
        Note: The format function will take about 25 sec.
==============================================================*/
//  FormatMMC();
/*==============================================================
                      Create 10 Text Files.
==============================================================*/
  CreateFile();
/*==============================================================
                  Append new data to 10 files.
==============================================================*/
  AppendData();
/*==============================================================
            Open 4 files and clear them, write new data.
==============================================================*/  
  ClearFile();
/*==============================================================
                      Delete #4 file.
==============================================================*/  
  DeleteFile();   
}
void loop(){}

void FormatMMC() {
  Serial.print("MF!");                // Send format command
  delay(50);
  Serial.print("JPModule!!");         // Send Label Volume
  delay(1000);
  waiting:                            // Waiting for format to finish
    StateVal = digitalRead(StatePin);   
    if (StateVal == LOW){             // Check state pin level.
       delay(100);      
       goto waiting;
    }  
}
void CreateFile() {
  for (int i = 0; i <= 9; i++){
      FileName[7] = 48 + i;
      Serial.print("MC!");
      delay(10);
      Serial.print(FileName);
      delay(10);
      Serial.print("20110101080808!");  // = 01-01-2011, 08:08:08
      delay(450);
      Serial.print("Test file number is ");
      Serial.print(FileName[7]);
      delay(200);
      Serial.print("ABCDEFGHIJKLMNOPQRSTUVWXYZ!!");
      delay(200);
      Serial.print("1234567890##");
      delay(200);
  }
}
void AppendData() {
  for (int i = 0; i <= 9; i++){
      FileName[7] = 48 + i;
      Serial.print("MA!");
      delay(10);
      Serial.print(FileName);
      delay(10);
      Serial.print("20110101181818!");  // = 01-01-2011, 18:18:18
      delay(450);
      Serial.print("Append new data to file number = ");
      Serial.print(FileName[7]);
      delay(200);
      Serial.print("abcdefghijklmnopqrstuvwxyz!!");
      delay(200);
      Serial.print("1234567890##");
      delay(200);
  }
}
void ClearFile() {
  for (int i = 0; i <= 3; i++){
      FileName[7] = 48 + i;
      Serial.print("MW!");
      delay(10);
      Serial.print(FileName);
      delay(10);
      Serial.print("20110101171717!");  // = 01-01-2011, 17:17:17
      delay(450);
      Serial.print("Write new data to file number = ");
      Serial.print(FileName[7]);
      delay(200);
      Serial.print("abcdefghijklmnopqrstuvwxyz!!");
      delay(200);
      Serial.print("1234567890##");
      delay(200);
  } 
}
void DeleteFile() {
  FileName[7] = 48 + 4;
  Serial.print("MD!");
  delay(10);
  Serial.print(FileName);
  delay(10);
  Serial.print("20080229181808!"); 
  delay(100);     
}