Write C program that insert 2digits password from the keypad and check if the password is correct a led(RD0) will turn on else repeat the insertion until you insert correct one. /* program keypad7.c*/ #include "16F877A.h" #use delay (clock=4000000) int akey; void scankey() { akey =0; while(akey==0) { output_d(255); output_low(PIN_d5); if(!input(PIN_c0)) { akey =0x4f; while(!input(PIN_c0)) { } ; } if(!input(PIN_c1)) { akey = 0x5c; while(!input(PIN_c1)) { } ; } if(!input(PIN_c2)) { akey = 0x06; while(!input(PIN_c2)) { } ; } } } void main() { while (1) {scankey(); output_b(akey);} }
Write C program that insert 2digits password from the keypad and check if the password is correct a led(RD0) will turn on else repeat the insertion until you insert correct one. /* program keypad7.c*/ #include "16F877A.h" #use delay (clock=4000000) int akey; void scankey() { akey =0; while(akey==0) { output_d(255); output_low(PIN_d5); if(!input(PIN_c0)) { akey =0x4f; while(!input(PIN_c0)) { } ; } if(!input(PIN_c1)) { akey = 0x5c; while(!input(PIN_c1)) { } ; } if(!input(PIN_c2)) { akey = 0x06; while(!input(PIN_c2)) { } ; } } } void main() { while (1) {scankey(); output_b(akey);} }
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
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Write C
/* program keypad7.c*/
#include "16F877A.h"
#use delay (clock=4000000)
int akey;
void scankey()
{
akey =0;
while(akey==0)
{
output_d(255); output_low(PIN_d5);
if(!input(PIN_c0))
{ akey =0x4f; while(!input(PIN_c0)) { } ; }
if(!input(PIN_c1))
{ akey = 0x5c; while(!input(PIN_c1)) { } ; }
if(!input(PIN_c2))
{ akey = 0x06; while(!input(PIN_c2)) { } ; }
}
}
void main()
{ while (1)
{scankey(); output_b(akey);}
}
Transcribed Image Text:ng 3
1 Normal
Stre
Paragraph
keypad4.dsn
220R
33
R80ANT
RB1
R82
R83/PG I
37
R84
33
RBS
1.39
R86/PGC
R87/PGD
15
RCOT10S0/TICK
16
RC1TIOSICC P2
17
RC2CCP1
R1
R2
R3
10
10
10k
18
RC3SC KSCL
RCLSDISDA
RCSSDO
RC6TXCK
25
RCT/RX/DT
ROOPSPO
RO1PSP1
RD2PSP2
RO3PSP3
ROLPSPE
ROSPSPS
RD6PSP6
ROTPSPT
20
21
22
A(1
2
29
8(4
6.
7
8
9.
米
%#3
LO
3.
%23
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