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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< } } }
What are the layers of data description in R/3? There layesr are there:- The external layer. The ABAP/4 layer. The database layer.
Q. Why we need number systems? Number system is used to signify information in quantitative form. Some of the general number systems are octal, decimal, hexadecimal and binary.
Describe the operation of parallel in parallel out (PIPO) shift register. Ans: Parallel In Parallel Out: By the name suggests, in parallel in parallel out that is a
What is index register? In index mode the effective address of the operand is formed by adding a constant value to the contents of a register. The register used might be either
Cross Bar The crossbar network is the easiest interconnection network. It has a two dimensional grid of switches. It is a non-blocking network and give connectivity among inp
You will write a program that will solve a version of the common newspaper puzzle \word search." In the puzzle you are given a grid lled with characters and a list of words to nd
a) Make a cell array variable that would kept for a student his or her name, university id number, and GPA. Print this information. b) Make a structure variable that would kept
Q Convert the following DECIMAL numbers into HEXADECIMAL, double check by converting the result HEXADECIMAL to DECIMAL. a) 24 b) 547.56
What is a thread? A thread otherwise called a lightweight process (LWP) is a basic unit of CPU utilization, it comprises of a thread id, a program counter, a register set and a
Creating Files for Writing Only Creating Files for Writing Only : To create a text file for writing only, pass "w" into fopen as the second argument. This example follows along
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