ArduinoSimulator.cpp

//C++ arduino simulator alpha Copyright 2011 Usmar A Padow usmpadow@gmail.com
//Parallel communication between 2 arduinos
//to see output of this program do:
//g++ -g -o arduinosimulator_Parallel_protocol_dual_arduino arduinosimulator_Parallel_protocol_dual_arduino.cpp 
//a@carrydesktop:~/arduino$ ./arduinosimulator_Parallel_protocol_dual_arduino |less

#defineHIGH1
#defineLOW0
#defineINPUT1
#defineOUTPUT0
#defineUNSET2
#include<stdio.h>
#include<unistd.h>//for the usleep function and fork
#include<stdlib.h>/* exit */
#include<errno.h>/* errno */

classPin {
private:
public:
int *ppinval;
int pinmode;
Pin(){
this->pinmode=UNSET;
 }

/*
 void connect(Pin _pin){
 int test=1;
 this->ppinval=_pin.ppinval;
 }
*/
};

classSerial_ {
private:
public:
voidprint(char str[]){
printf("%s",str);
 }
voidprintln(char str[]){
printf("%s\n",str);
 }

charread(){//these functions need to be fixed so they do not require return to be pressed, perhaps using SDL or curses
returngetchar();
 }
intavailable(){
return1;//getchar() != '';
 }
intbegin(int speed){
return speed;//getchar() != '';
 }

}Serial;

intdigitalRead(Pin _pin){
return *_pin.ppinval;
}
intdigitalWrite(Pin _pin, int val){
 *_pin.ppinval = val;
}

Pin PinNull;//this pin is so that I can initialize the array with something to avoid segmentation faults
Pin *AssociativeArray[2][1000];//this array is to keep track of which pin is connected to which to check for short circuits 
voidinitArray(void) {
int x;
for(x=0;x<=1000-1;x++) {
 AssociativeArray[0][x]=&PinNull;
 AssociativeArray[1][x]=&PinNull;
 }
}

voidpinMode(Pin *_pin, int mode){//I think I should add a way to warn which pin is short circuiting which pin
if(mode==OUTPUT) {
int x;
for(x=0;x<=1000-1;x++) {
//printf("AssociativeArray[0][x]=%x _pin=%x &PinNull=%x\n",AssociativeArray[0][x],_pin,&PinNull);
if(AssociativeArray[0][x]==_pin) {
 Pin tmp=*AssociativeArray[1][x];
if(tmp.pinmode==OUTPUT) {
printf("ERROR! possible short circuit detected between two pins connected together and are both set to OUTPUT, this can fry a port on your arduino!\n");
exit(1);
 }
 }
 }
 }
//Pin tmp=*_pin;
//tmp.pinmode=mode;
//here is the next problem, I cannot seem to set this property
//when I have a pointer to an object how can I assing a value to a variable inside the object?
//*_pin.pinmode=mode;
 _pin->pinmode=mode;
}

voiddelayMicroseconds(int microseconds) {
usleep(microseconds);//microseconds are a millionth of a second
}
voiddelay(int milliseconds) {
usleep(milliseconds*1000);//microseconds are a millionth of a second
}

//make pin obects 
Pin reciever_recieve_ready;//acknowledgement pin
Pin reciever_send_ready;//acknowledgement pin
Pin reciever_dataPin0;
Pin reciever_dataPin1;
Pin reciever_dataPin2;
Pin reciever_dataPin3;
Pin reciever_dataPin4;
Pin reciever_dataPin5;
Pin reciever_dataPin6;
Pin reciever_dataPin7;

Pin sender_recieve_ready;//acknowledgement pin
Pin sender_send_ready;//acknowledgement pin
Pin sender_dataPin0;
Pin sender_dataPin1;
Pin sender_dataPin2;
Pin sender_dataPin3;
Pin sender_dataPin4;
Pin sender_dataPin5;
Pin sender_dataPin6;
Pin sender_dataPin7;

//create wires
int wire0=LOW;
int wire1=LOW;
int wire2=LOW;
int wire3=LOW;
int wire4=LOW;
int wire5=LOW;
int wire6=LOW;
int wire7=LOW;
int wire8=LOW;
int wire9=LOW;
//define how often the circuit should be tested the smaller the faster it will be updated
//int CircuitUpdateDelay=200;//wait 200 milliseconds before updating circuit

//define the behaviour of your circuit here, I will be pretending I have an LED connected to a wire(lets ignore the needed ressistor for now)
voidcircuit(void) {
//in this circuit the wires just transfer power(in real life we will need resistors). we dont need to define circuit behaviour
}

voidconnect(){
//set initial values of a pin or you will get a segmentation fault
 reciever_recieve_ready.ppinval=&wire0;//acknowledgement pin
 reciever_send_ready.ppinval=&wire1;//acknowledgement pin

 reciever_dataPin0.ppinval=&wire2;
 reciever_dataPin1.ppinval=&wire3;
 reciever_dataPin2.ppinval=&wire4;
 reciever_dataPin3.ppinval=&wire5;
 reciever_dataPin4.ppinval=&wire6;
 reciever_dataPin5.ppinval=&wire7;
 reciever_dataPin6.ppinval=&wire8;
 reciever_dataPin7.ppinval=&wire9;

 sender_recieve_ready.ppinval=&wire0;//crossing wires
 sender_send_ready.ppinval=&wire1;//crossing wires

 sender_dataPin0.ppinval=&wire2;
 sender_dataPin1.ppinval=&wire3;
 sender_dataPin2.ppinval=&wire4;
 sender_dataPin3.ppinval=&wire5;
 sender_dataPin4.ppinval=&wire6;
 sender_dataPin5.ppinval=&wire7;
 sender_dataPin6.ppinval=&wire8;
 sender_dataPin7.ppinval=&wire9;

//populare array of pins that are connected to each other
//I wond do this here because I wont be cchanging the pinMode at runtime
}