Introduction

This is the documentation of using the picsim simulation library functions.

Library functions usage simple example

Demonstration of a simple example of using picsim library functions

picsim_simple.c

#include<picsim/picsim.h>
#include<stdio.h>
 
int main()
{
  int i;
  unsigned char val;
  //microcontroller object
  _pic pic1; 
 
  //set serial port
  pic_set_serial(&pic1,"/dev/tnt2",0,0,0);
  //pic_set_serial(&pic1,"COM2",0,0,0);
 
  //initialization and program loading
  pic_init(&pic1, P16F628A, "../../../examples/shift/shift.hex",1,20e6);
 
  //enable print messages of internal instruction execution (slow down the simulation speed) 
  pic1.print=1;
 
  //loop 
  for(i=0;i<1000;i++)
  {
      //execute one instruction cycle      
      pic_step();
      //read digital pin 1
      val=pic_get_pin(1);
      //write digital pin 2
      pic_set_pin(2, val);
  }
 
  //free internal memory
  pic_end();
} 

Makefile

 
CC= gcc
 
FLAGS= -Wall -ggdb
 
all: picsim_simple.c
    $(CC) $(FLAGS) picsim_simple.c -o picsim_simple -lpicsim
 
clean:
    rm -rf picsim_simple
 
run:
    picsim_simple P16F628A ../../examples/shift.hex