Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 30, Problem 5RQ
What type of motor is known as a constant-speed motor?
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circuit 2
Suppose you have 8 LED's connected to port-B (Bo-B7) of PIC16F877A and one switch
connected to port-D (Do) as shown in figure below. Write a program code that performs a
nibble (4-bits) toggling: if the switch is released then LED's (Bo to B3) are OFF and LED's
(B4 to B7) are ON, while if the switch is pressed then LED's (Bo to B3) are ON and LED's
(B4 to B7) are OFF. Use 300ms delay for each case with 4MHz frequency.
13
14
22 NATHON 20
U1
OSC1/CLKIN
U2
33
REOINT
20
34
OSC2/CLKOUT
19
RB1
35
3
18
RB2
RADIANO debt0RB3PGM
30
4
17
37
5
10
RA1/AN1
RB4
38
RA2/ANZ/VREF-/CVREF
15
RB5
39097
RA3/AN3VREF RB6/PGC
7
14
40
RA4/TOCK/C1OUT
13
RB7/PGO
RAS/ANA/SS/CZOUT
15
RCO/T1OSO/TICKI
10
11
REQIANS/RD
18
RC1/T10S/CCP2
17
10
RE1/AN/WR
REZ/ANTICS
MCLR/Vpp/THV
RC2/CCP1
LED-BARGRAPH-RED
RC3/SCK/SCL
RC4/SDUSDA
RC5/SDO
Eng of ROSTX/CX
RC7/RX/DT
RDO/PSPO
RD1/PSP1
RD2PSP2
RO3/PSP3
RD4/PSP4
ROS/PSP5
RD6/PSP6
RD7/PSP7
PIC16F877A
+5V
R1
100R
Write a PIC16F877A program that flash ON the 8-LED's connected to port-B by using
two switches connected to port-D (Do & D₁) as shown in figure below, according to the
following scenarios: (Hint: Use 500ms delay for each case with 4MHz frequency)
1. When Do=1 then B₁,B3,B, are ON.
2. When Do 0 then Bo,B2,B4, B5, B6 are ON.
3. When D₁=1 then B4,B,,B6,B7 are ON.
4. When D₁-0 then Bo,B1,B2,B3 are ON.
U1
5
33
OSC/CLION
OSC2/CLKOUT
ROOINT
RB1
35
RB2
20
17
RACIANO
RESPOM
RATANT
RAZIANZ/VREF-CVREF
RBS
RA3/AN3/VREF+
REPOC
39
14
40
RA4/TOCK C1OUT
13
RB7/PGO
12
RASIAN/SCOUT
15
ROOT1050/TICK
+5V
REGIANERD
REVANDVIR
REZANTICS
RCMT10SUCCP2
17
RC2/CCP1
LED-BARGRAPH-RED
RC3SCHISCL
23
---
MCUANTV
RC4/SOSDA 24
RCS/SDO
RCB/TICK
RC7/RXDT
25
ROOPSPO
RDMPSP1
RD2PSF2
RO3PSP3
RD4PSP4
RDSPSPS
PIC16F877A
ROOPSP
RO7/PSP7
R2
R1
100R 100R
Chapter 30 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 30 - Prob. 1RQCh. 30 - Prob. 2RQCh. 30 - Prob. 3RQCh. 30 - Prob. 4RQCh. 30 - What type of motor is known as a constant-speed...Ch. 30 - What is CEMF?Ch. 30 - Prob. 7RQCh. 30 - Prob. 8RQCh. 30 - Prob. 9RQCh. 30 - What type of motor should never be operated at no...
Ch. 30 - Prob. 11RQCh. 30 - What is the most common way of changing the...Ch. 30 - Prob. 13RQCh. 30 - Prob. 14RQCh. 30 - What device is used to disconnect power to the...Ch. 30 - Prob. 16RQCh. 30 - Who was the first person to establish a...Ch. 30 - One horsepower is equal to how many W?Ch. 30 - A motor is operating a load that requires a torque...Ch. 30 - The motor in Question 19 is connected to a 250-VDC...Ch. 30 - Prob. 1PA
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