Gare du réseau de Jappy: programmation

#define SERIAL_IN   PD5
#define REG_CLK      PD6
#define SERIAL_CLK   PD7
#define CONFIG_DDRD   (_BV(SERIAL_IN)|_BV(SERIAL_CLK)|_BV(REG_CLK))

DDRD = CONFIG_DDRD;

void TestShiftArray(uint8_t aData[], uint8_t nBytes)
{
#define   NBITS   8
uint8_t      iByte, iBit;

   PORT_OUT &= ~_BV(SERIAL_CLK);
   PORT_OUT &= ~_BV(REG_CLK);

   // Boucle sur les bytes.
   for (iByte = 0; iByte < nBytes; iByte++)
   {
      // Boucle sur les bits du byte courant.
      for (iBit = 0; iBit < NBITS; iBit++)
      {
         if (aData[iByte] & (1 << ((NBITS-1)-iBit)))
         {
            PORT_OUT |= _BV(SERIAL_IN);
         }
         else
         {
            PORT_OUT &= ~_BV(SERIAL_IN);
         } // if
   
         // Signal d'horloge bit.
         PORT_OUT |= _BV(SERIAL_CLK);
         PORT_OUT &= ~_BV(SERIAL_CLK);
      } // for   
   } // for
   // Pousser les valeurs dans le registre de sortie.
   PORT_OUT |= _BV(REG_CLK);
   PORT_OUT &= ~_BV(REG_CLK);
} // TestShiftArray

uint8_t aData[2];
...
                aData[0] = 0b00000000;
      aData[1] = 0b00000001;
      TestShiftArray(aData, 2);

int SER_Pin = 13;  //pin 14 data on the 75HC595
int RCLK_Pin = 12;  //pin 12 latch on the 75HC595
int SRCLK_Pin = 11; //pin 11 clock on the 75HC595
 
//How many of the shift registers - change this
#define number_of_74hc595s 3
 
//do not touch
#define numOfRegisterPins number_of_74hc595s * 8
 
boolean registers[numOfRegisterPins];
 
void setup(){
  pinMode(SER_Pin, OUTPUT);
  pinMode(RCLK_Pin, OUTPUT);
  pinMode(SRCLK_Pin, OUTPUT);
 
  //reset all register pins
  clearRegisters();
  writeRegisters();
}             
 
//set all register pins to LOW
void clearRegisters(){
  for(int i = numOfRegisterPins - 1; i >=  0; i--){
    registers[i] = LOW;
  }
}
 
//Set and display registers
//Only call AFTER all values are set how you would like (slow otherwise)
void writeRegisters(){
 
  digitalWrite(RCLK_Pin, LOW);
 
  for(int i = numOfRegisterPins - 1; i >=  0; i--){
    digitalWrite(SRCLK_Pin, LOW);
 
    int val = registers[i];
 
    digitalWrite(SER_Pin, val);
    digitalWrite(SRCLK_Pin, HIGH);
 
  }
  digitalWrite(RCLK_Pin, HIGH);
 
}
 
//set an individual pin HIGH or LOW
void setRegisterPin(int index, int value){
  registers[index] = value;
}
 
void loop(){
 
  setRegisterPin(2, HIGH);
  setRegisterPin(3, HIGH);
  setRegisterPin(4, LOW);
  setRegisterPin(5, HIGH);
  setRegisterPin(7, HIGH);
 
  writeRegisters();  //MUST BE CALLED TO DISPLAY CHANGES
  //Only call once after the values are set how you need.
}

[code]void setup()
{
...
}[/code]