#include <stdint.h>

//abgewandelt von EPROM5.ino 

#define LEDPin      13

word EPROMSize=511;

  #define addr_A00_pin 40
  #define addr_A01_pin 41
  #define addr_A02_pin 42
  #define addr_A03_pin 43
  #define addr_A04_pin 44
  #define addr_A05_pin 45
  #define addr_A06_pin 46
  #define addr_A07_pin 47
  #define addr_A08_pin 25

  #define data_D0_pin  39
  #define data_D1_pin  38
  #define data_D2_pin  37
  #define data_D3_pin  35
  #define data_D4_pin  34
  #define data_D5_pin  33
  #define data_D6_pin  32
  #define data_D7_pin  31
  //#define GND_pin      36, direct digital GND, 36 wäre über shield

 //#define VCC_pin      24 direct digital +5V
  #define CE1_pin       28
  //#define PRM_pin      30  no prg
  #define CS_pin      27
  #define CE2_pin      26
  //#define VDD_pin      29 direct +5V

void SetChip4Read()
{

  //digitalWrite(VCC_pin, HIGH); direct
  digitalWrite(CS_pin, LOW);
  //digitalWrite(PRM_pin, LOW); NC
  //digitalWrite(VSS_pin, LOW); direct
  digitalWrite(CE1_pin, HIGH);
  digitalWrite(CE2_pin, LOW);
}

void SetAddressPins(byte HighAddress, byte LowAddress)
{
    digitalWrite(addr_A00_pin, (LowAddress & 0b00000001));
    digitalWrite(addr_A01_pin, (LowAddress & 0b00000010));
    digitalWrite(addr_A02_pin, (LowAddress & 0b00000100));
    digitalWrite(addr_A03_pin, (LowAddress & 0b00001000));
    digitalWrite(addr_A04_pin, (LowAddress & 0b00010000));
    digitalWrite(addr_A05_pin, (LowAddress & 0b00100000));
    digitalWrite(addr_A06_pin, (LowAddress & 0b01000000));
    digitalWrite(addr_A07_pin, (LowAddress & 0b10000000));
    
    digitalWrite(addr_A08_pin, (HighAddress & 0b00000001));
    //digitalWrite(CE1_pin, LOW); vermutl erst nach OUTPUT ?
}
void SetPinModes()
{
  pinMode(addr_A00_pin, OUTPUT);
  pinMode(addr_A01_pin, OUTPUT);
  pinMode(addr_A02_pin, OUTPUT);
  pinMode(addr_A03_pin, OUTPUT);
  pinMode(addr_A04_pin, OUTPUT);
  pinMode(addr_A05_pin, OUTPUT);
  pinMode(addr_A06_pin, OUTPUT);
  pinMode(addr_A07_pin, OUTPUT);
  
  pinMode(CS_pin, OUTPUT);
  pinMode(CE1_pin, OUTPUT);
  pinMode(CE2_pin, OUTPUT);
  
 digitalWrite(CE1_pin, LOW);
  pinMode(data_D0_pin, INPUT);
  pinMode(data_D1_pin, INPUT);
  pinMode(data_D2_pin, INPUT);
  pinMode(data_D3_pin, INPUT);
  pinMode(data_D4_pin, INPUT);
  pinMode(data_D5_pin, INPUT);
  pinMode(data_D6_pin, INPUT);
  pinMode(data_D7_pin, INPUT);

  pinMode(LEDPin, OUTPUT);
}

byte ReadDataValue()
{

  byte temp = 0;
//delay(1);

  if (digitalRead(data_D0_pin) == HIGH) 
  { 
    temp = (temp | 0b00000001);
  }
  if (digitalRead(data_D1_pin) == HIGH) 
  {
    temp = (temp | 0b00000010);
  }
  if (digitalRead(data_D2_pin) == HIGH)
  {
    temp = (temp | 0b00000100);
  }
  if (digitalRead(data_D3_pin) == HIGH)
  {
    temp = (temp | 0b00001000);
  }
  if (digitalRead(data_D4_pin) == HIGH) 
  {
    temp = (temp | 0b00010000);
  }
  if (digitalRead(data_D5_pin) == HIGH) 
  {
    temp = (temp | 0b00100000);
  }
  if (digitalRead(data_D6_pin) == HIGH) 
  {
    temp = (temp | 0b01000000);
  }
  if (digitalRead(data_D7_pin) == HIGH) 
  {
    temp = (temp | 0b10000000);
  }
  return temp;
  
}
 void BinaryStrZeroPad(int Number,char ZeroPadding){
 signed char i=ZeroPadding;

  while(i>=0){
      if((Number & (1<<i)) > 0) Serial.write('1');
      else Serial.write('0');
      --i;
  }
}
void setup() 
{
  Serial.begin(9600); // war 2000000
  Serial.write("DUMP start");
  Serial.write("\n\r");

  SetPinModes();    //  Setup pinmodes depending on chip
  digitalWrite(LEDPin, HIGH);
  SetChip4Read();   //  Setup chip select, output enable pins etc for reading

  //digitalWrite(VCC_pin, HIGH); direct angeschlossen
    
  int MaxHighAddress = (EPROMSize)/256;
  int MaxLowAddress = 256;

  byte dataValue = 0;   
  
  for(int i = 0; i <= MaxHighAddress; i++)
  {
           
    for(int j = 0; j < MaxLowAddress/8; j++)
    {
      
//     Serial.print(256*i+j*8, OCT);
//     Serial.print((256*i)+(j*8), HEX);

//     Serial.print("\t");
       for(int k = 0; k < 8; k++)
       { 
        SetAddressPins(byte(i), byte(j*8+k));
        
        dataValue = ReadDataValue();
  digitalWrite(LEDPin, LOW);  
  
  Serial.print(dataValue, HEX);
  Serial.print("\t");
      }
      Serial.print("\n");
    }
  }
  
  
}
  
void loop (){}