Demonstration of a micro controller system, Computer Engineering

Assignment Help:

Within the Microelectronics centre we support the following microcontrollers 68HC11, 80C51 and the PIC16C5xx series; we have a set of software tools and emulators to help debug high and low level software /hardware designs. Within the demonstration we shall see a elementary program to chase lights on a parallel port (The knight rider car). The code is available in machine code and C as shown later. You will see the use of the compiler and assembler (IAR program) on a 68HC11 target machine.
         
C code Program
 
void main()
 
{
/* Author Mr James Mc Carren 
      Date :  1 st March 1996
   Fuctions used : delay
   Purpose : To Chase lights on port A 
   Target : 68HC11 microcontroller
   Version : 1.0
   Modifications : None 
*/
  unsigned char *Paddr,*Padr;
  unsigned char data;
  int x,i,del;
/* Declare the port a pointers */
 
  Padr = (unsigned char *)0x0;
  Paddr = (unsigned char *)0x1;
/* Port A all outputs */
 
  *Paddr =0xff;
  for(;;)
  {
    data = 0x1;
    for (i=0;i<=7;i++) /* Shift  8 times */
    {
    for (del = 0;del<=0x3fff;del++); /* Very long delay */
    *Padr = data<    }
  }  
}


Related Discussions:- Demonstration of a micro controller system

Explain simple interfacing, Q. Explain Simple Interfacing? The followin...

Q. Explain Simple Interfacing? The following is a sample of the coding, used for procedure interfacing: PUBLIC CUROFF             _TEXT SEGMENT WORD PUBLIC 'CODE'

Data structures.., in asingle function declaration what is maximum no of st...

in asingle function declaration what is maximum no of statements that may be recursive calls

Collective communications - broadcast, Q. Collective Communications - Broad...

Q. Collective Communications - Broadcast? Broadcast: Broadcasting can be done in two ways one of them is one to all and another one is all to all. In the matter of one to all b

Neural network for two predictors thickness, 2) Consider the following neur...

2) Consider the following neural network for two predictors Thickness and Alignment and two classes Print Quality High and Low. Some weights are shown in the table, including weigh

Differentiate between hardware and software, Differentiate between Hardware...

Differentiate between Hardware and Software Another classification is software vs. hardware. Hardware is the collection of physical components, like chips, wires, PCBs, connect

Example of circuit switching & stored and forward switching, Example of cir...

Example of circuit switching and S&F (Stored and Forward) switching is (A) Telephone and Post of Telegraph (B) Video Signal Post or Telegraph (C)  Digital Signal P

How will these instructions perform?, Q. How will these instructions perfor...

Q. How will these instructions perform? Let's assume that above machine instructions are stored in three consecutive memory locations 1, 2 and 3 and PC contains a value (1) tha

Determine about the radio frequency, Determine about the Radio Frequency (R...

Determine about the Radio Frequency (RFID)  This method includes using small electronic devices containing an Identification microchip and antenna; they work in a similar way

Illustrate about the macros and give its example, Illustrate about the macr...

Illustrate about the macros and give its example For instance, assume you want some data to be input into a spreadsheet if result of a calculation in cell K40 is negative: m

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd