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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< } } }
Using a suitable logic diagram explain the working of a 1-to-16 de multiplexer. Ans. 1-to-16 Demultiplexer Working: A demultiplexer obtains in data from one line and directs this
Arterial puncture - Specimen collection: Arterial puncture: this requires special skill and usually performed only by physician. The preferred site is radial arter
Q. What is Gustafsons Law? Amdahl's law is appropriate for applications where response time is significant. On the other hand there are numerous applications that necessitate
Explain Assembly Language This is a family of low-level language for programming computers, microprocessors, microcontrollers etc. They implement a symbolic sign of the numeric
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8:1 Mux for a given function, f=S (0, 1,5,7,9, 13)..
Explain new services of CPU Based Exchange. These new services are termed as supplementary services and several of the prominent ones are given below as: Category 1:
Define static memories? Memories that consists of circuits capable of retaining their state as long as power is applied is known as static memories
It's not trivial to execute nested functions such that they have the proper access to local variables in the having function(s), so they were deliberately left out of C as a simpli
what is the operations in atree structured directory.
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