#include "mbed.h"#include "C12832_lcd.h"int counter = 0, seconds = 0;int flag = 0;C12832_LCD lcd;Ticker tick;void T1_isr (){counter++;if (counter >= 100)}seconds++;counter = 0;flag = 1;int main(){// clock tick//1 second has passed?while(1) {// Yes increment seconds// reset counter// set flag to update displaytick.attach_us(&T1_isr, 10000);lcd.cls();lcd.locate(0,0);lcd.printf("Elapsed Time Monitor"); //print headerwhile (flag == 0);lcd.locate(0,15);lcd.printf("Elapsed Seconds: %d", seconds);flag = 0; //reset flag}Figure 1// wait for new data 2. The C program in Figure 1 is to show the elapsed time on LCD display in seconds. Theprogram uses a Ticker with a period of 10ms to control system timing.(1) Modify the program such that it uses a time base of 1 ms to drive the clock.(2) Modify the program in such a way displays elapsed time in hours, minutes and seconds.

Below I have provided the solution to the given C program.

2. The C program in Figure 1 is to show the elapsed time on LCD display in seconds. The program uses a Ticker with a period of 10ms to control system timing. (1) Modify the program such that it uses a time base of 1 ms to drive the clock. (2) Modify the program in such a way displays elapsed time in hours, minutes and seconds.

2. The C program in Figure 1 is to show the elapsed time on LCD display in seconds. The program uses a Ticker with a period of 10ms to control system timing. (1) Modify the program such that it uses a time base of 1 ms to drive the clock. (2) Modify the program in such a way displays elapsed time in hours, minutes and seconds.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Operations

In mathematics and computer science, an operation is an event that is carried out to satisfy a given task. Basic operations of a computer system are input, processing, output, storage, and control.

Basic Operators

An operator is a symbol that indicates an operation to be performed. We are familiar with operators in mathematics; operators used in computer programming are—in many ways—similar to mathematical operators.

Division Operator

We all learnt about division—and the division operator—in school. You probably know of both these symbols as representing division:

Modulus Operator

Modulus can be represented either as (mod or modulo) in computing operation. Modulus comes under arithmetic operations. Any number or variable which produces absolute value is modulus functionality. Magnitude of any function is totally changed by modulo operator as it changes even negative value to positive.

Operators

In the realm of programming, operators refer to the symbols that perform some function. They are tasked with instructing the compiler on the type of action that needs to be performed on the values passed as operands. Operators can be used in mathematical formulas and equations. In programming languages like Python, C, and Java, a variety of operators are defined.

Question

#include "mbed.h"
#include "C12832_lcd.h"
int counter = 0, seconds = 0;
int flag = 0;
C12832_LCD lcd;
Ticker tick;
void T1_isr ()
{
counter++;
if (counter >= 100)
}
seconds++;
counter = 0;
flag = 1;
int main(){
// clock tick
//1 second has passed?
while(1) {
// Yes increment seconds
// reset counter
// set flag to update display
tick.attach_us(&T1_isr, 10000);
lcd.cls();
lcd.locate(0,0);
lcd.printf("Elapsed Time Monitor"); //print header
while (flag == 0);
lcd.locate(0,15);
lcd.printf("Elapsed Seconds: %d", seconds);
flag = 0; //reset flag
}
Figure 1
// wait for new data

2. The C program in Figure 1 is to show the elapsed time on LCD display in seconds. The
program uses a Ticker with a period of 10ms to control system timing.
(1) Modify the program such that it uses a time base of 1 ms to drive the clock.
(2) Modify the program in such a way displays elapsed time in hours, minutes and seconds.

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