8051 kit manual

Operational Manual
for
8051 Development Kit
8051DK-6x10

For Workshop on

“Embedded Systems using 8051 MuC”

By: Anish Goel
M.S.E.E., NJIT, USA

CONTENTS
1. List of contents of the package.
2. Details of the development kit and features.
3. Software installation steps.
4. Connecting and powering up the kit.
5. Tutorial on RIDE and Flash Magic.
6. Sample codes and their explanation.

8051DK-6x10 Manual Page 2

Chapter 1
List of contents of the package
The package contains:

1. A 6cm x 10cm 8051 Development kit PCB with following devices on it:
a. P89V51RD2BN microcontroller chip.
b. MAX232 chip
c. 3mm LED’s – 4 Nos.
d. Pushbutton Switches – 4Nos.
e. Seven Segment Display (Common Cathode) – 1Nos.
f. 0.5 cm DC motor with driver circuit.
g. Serial DB-9 Connector.
h. B-type USB connector.
i. 11.0592 MHz crystal and other discrete components.

2. A USB cable, A to B type.

3. A serial Cable.

4. A CD containing the required software’s and this instruction manual.


Chapter 2
Details of the development kit and Features

1
2
8

3
9
15
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4
11

12
5

13 6

7
14

Identification

1 ------------------------------------------------------ Reset Switch
2 ------------------------------------------------------ Seven Segment Display
3 ------------------------------------------------------ FRC Male Connector
4 ------------------------------------------------------ Input Switch Array


5 ----------------------------------------------------- Power ON/OFF Switch
6 ----------------------------------------------------- USB Female Connector B type
7 ----------------------------------------------------- USB cable
8 ----------------------------------------------------- LED’s for output
9 ----------------------------------------------------- Power ON LED
10 ----------------------------------------------------- Driver Circuit for DC motor
11 ----------------------------------------------------- D.C. Motor
12 ----------------------------------------------------- MAX-232 and capacitors
13 ----------------------------------------------------- Serial port DB-9 Female Con.
14 ----------------------------------------------------- Serial Cable
15 ----------------------------------------------------- Microcontroller P89V51RD2

Features:
1. The size of the kit is very small, due to which it is extremely handy and can
be easily used without proper lab setup with a laptop machine.

Size in cm: 6 x 10

2. CPU of the development kit P89V51RD2BN which is a In-system
programmable microcontroller with intel 8051 architecture.
3. For basic input/output interface LED’s and switches are provided.
4. A common cathode seven segment is interfaced to study interface of
display device.
5. A small DC motor (cell phone vibration motor) is interfaced to
microcontroller and the driver circuit is provided on the kit.
6. A MAX-232 IC with capacitors is interfaced to the microcontroller at its SCI
port to provide serial communication.
7. Power-ON reset circuitry is provided on the board that resets the
microcontroller when it is powered up. A reset switch is also present to
reset the microcontroller at any instance.
8. USB cable is provided to power up the kit. A ON/OFF switch is present to
turn the kit ON/OFF without disconnecting the cable. Power-ON indicator
LED indicates if the kit is getting power.

9. A 11.0592 MHz crystal is present on the board to provide clock to the chip.
10.Male FRC connector pins are available on both sides of the 8051 MuC chip
and are accessible to the user to interface any other device besides the
interfaces provided ON-Board. These pins are connected to each pin on
8051 MuC.

Pin connections for MuC on the Kit.
Pin Number Function Connected to: Comments
1 Port 1 0th Bit (P1.0) LED1 and FRC pin --
2 Port 1 1st Bit (P1.1) LED2 and FRC pin --
3 Port 1 2nd Bit (P1.2) LED3 and FRC pin --
4 Port 1 3rd Bit (P1.3) LED4 and FRC pin --
5 Port 1 4th Bit (P1.4) FRC pin --
8 Port 1 7th Bit (P1.7) Motor Driver and --
FRC pin
9 Reset Reset Switch and --
FRC pin
10 Port 3 0th Bit (P3.0 ) Max-232 and FRC --
pin
11 Port 3 1st Bit (P3.1) Max-232 and FRC --
pin
12 Port 3 2nd Bit (P3.2) FRC pin --
13 Port 3 3rd Bit (P3.3) FRC pin --
18 Crystal 1 (X1) Crystal and FRC pin --
19 Crystal 2 (X2) Crystal and FRC pin --
20 Ground GND and FRC pin --
21 Port 2 0th Bit (P2.0 ) SW4 and FRC pin --
22 Port 2 1st Bit (P2.1) SW3 and FRC pin --
23 Port 2 2nd Bit (P2.2) SW2 and FRC pin --
24 Port 2 3rd Bit (P2.3) SW1 and FRC pin --


29 ALE GND and FRC pin --
30 PSEN VCC and FRC pin --
31 EA/Vpp VCC and FRC pin --
32 Port 0 0th Bit (P0.7 ) SSD and FRC pin --
33 Port 0 1st Bit (P0.6) SSD and FRC pin --
34 Port 0 2nd Bit (P0.5) SSD and FRC pin --
35 Port 0 3rd Bit (P0.4) SSD and FRC pin --
36 Port 0 4th Bit (P0.3) SSD and FRC pin --
40 VCC VCC and FRC pin --


Chapter 3
Software installation steps
Installation steps for RIDE.

1. Go to the folder named RIDE.
2. Double click on install.exe.
3. Click next next …. and go ahead until the setup wizard is complete.
4. At the end click finish to complete the installation.

Installation steps for Philips Flash magic.

1. Double click on Flash magic.exe.
2. Click next next …. and go ahead until the setup wizard is complete.
3. At the end click finish to complete the installation.


Chapter 4
Connecting and powering up the kit
1. Power is provided to the kit through USB cable provided with the kit.
2. Connect the B side of the USB cable to the B type connector present on the
kit.
3. Connect the A side of the USB cable to USB connector of the
Laptop/desktop.
4. After connecting both ends of the cable, push the ON/OFF switch.
5. A small LED besides this switch turns ON to indicate that the kit is powered
up properly.
6. The serial cable provided with the kit is used to transfer the hex code from
the PC to the kit and also as a serial link between the kit and any other
device while performing serial communication.
7. Connect one of the ends of the serial cable (Male connector) to the female
serial DB-9 connector on the kit.
8. Connect the other end of this cable to the serial port of the computer
(Desktop).
9. A USB to serial convertor may be used if the kit is to be connected to a
Laptop.
10.There is no indication whether the serial link between the kit and computer
is has been established. It is automatically verified once a program is
transferred from the computer to the microcontroller successfully.


Chapter 5
Tutorial on RIDE and Flash Magic
Executing sample programs using RIDE.

1. Open the RIDE software.

2. To make a new project:
• Project New

• Specify a “Name”.
• Directory where the project is to be stored.
• Target family as 80C51.
• Click “Next”.
• Select the target device as: Atmel-AT89S52, or Philips-
P89C/V51RD2xx.

• Clock on “Finish”

3. The place on the left hand side is the project window. It shows all the
details about the project.

4. To create new file: File New C File.

5. Write your code into the window on the right and save it.

6. Right click on your project name in the project window and click on “Add
node source/application”.

7. Brows the saved C-File and click ok. This includes the C-File in the project.

8. To generate .HEX file of the project press F9. The hex file is generated is
there are no errors in the code.

9. The location of the .HEX file is shown at the bottom of the RIDE window.


10. This file can be directly transferred to the microcontroller using Flash
magic.


Programming the microcontroller P89C/V51RD2BN using Philips Flash Magic

1. Open the Philips flash magic software.
2. Make the following setting in the software:
• Select the appropriate COM port where the kit is connected.
• Select the Baud rate (Generally keep it at 9600)
• Select the device (89C51RD2xx or 89V51RD2) according to the
microcontroller place on board.
• Place a tick on “Erase all flash”
3. Brows your code’s .HEX File I the hex file space.

4. Click on the “Start” button.


5. The software gives a message “Reset the device in ISP mode now” (in case
of 89V51RD2)

6. Turn the kit off by pressing the pushbutton switch (AC/DC) switch and then
switch it on. The above box disappears and the hex file gets transferred.

ALTERNATIVELY

6. At this point press the “BOOT” switch on the kit. Reset the device by
pressing the “RESET” switch (while keeping the BOOT switch pressed), and
then release the BOOT switch. The above window disappears and the .HEX
file is transferred to the microcontroller.
7. After the software shows “Finish” (bottom right of the window) Press
“RESET” switch to execute your program.
8. In case of 89C51RD2xx, select this device, locate the hex file, follow STEP 6
(above) and then press start button on the software.


Chapter 6
Sample codes
Code 1
This code will blink LED’s connected at Port 1 alternatively.

Change the numbers 0xaa and 0x55 to change the pattern of the LED’s.

# include<reg51rx.h>

main()

{
int t;
P1=0xaa;
for(t=0;t<50000;t++);
P1=0x55;
for(t=0;t<50000;t++);
main();
}

Code 2
This code checks if any of the switches at port 2 is pressed and then blinks the LED’s at port 1.


void prog1();
void delay();

main()

{
int r;
P2=0xff;
if (P2!=0xff)
{


prog1();
}
}

void prog1(void)

{
P1=0x00;
delay();
P1=0xff;
delay();
main();
}

void delay(void)

{
int t;
for(t=0;t<50000;t++);
}

Code 3
This code displays the count 0 to 9 on seven segment display interfaced on port 0.


main()

{
int t,i,u;
static code char num[] = {0x7e,0x48,0x3d,0x6d,0x4b,0x67,0x77,0x4c,0x7f};
for(i=0;i<10;i++)
{
P0=num[i];
for(u=0;u<20;u++)
{
for(t=0;t<50000;t++);


}
}
i=0;
}

Code 4
Set the baud rate on hyper-terminal at 9600 bps
/************************************************************/
/* this displays how to serially communicate without printf */
/************************************************************/

#include<reg51rx.h>

void comsend(char *);
void cominit();

void main()
{
cominit();//initialize UART for communication
comsend("Hello World");//send the string
while(1);//stop
}

void cominit()
{
TH1=-3;//timer 1 used as baud rate generator, gives 9600 baud
TMOD=0x20;//timer 1 in mode 1
TR1=1;//start timer 1

SCON=0x50;//intialize UART
}

void comsend(char *dat)//read data
{
char data temp;//temporary
for(temp=0;dat[temp];temp++)//count characters in the string


{
TI=0;
SBUF=dat[temp];//transmit character
while(!TI);//wait for transmission
}
}

For more details visit: www.dicovermechatronics.blogspot.com
Email: 2007.anish@gmail.com
Cell: 09970825313


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