Mde 8051 Trainer k593t

LAB 1

MDE 8051 Trainer



     

Connector(s):

Two full-duplex serial ports All ports accessible via male & female headers

Programming:

In-system programmable via serial port

Serially programmable (using PC HyperTerminal, no need for external EPROM burner) Dual serial ports Integrated digital I/O (8 switches and 8 LEDs) All ports accessible via male & female connectors Onboard power supply Connects to serial ports of PC DS89C4XX Features: o 8051 Pin- and Instruction-Set Compatible o Four Bidirectional I/O Ports o Three 16-Bit Timer Counters> o 256 Bytes scratchpad RAM  On-Chip Memory  16KB-64KB Flash Memory  In-system programmable via Serial Port  1KB SRAM for MOVX o ROMSIZE Feature  Selects Internal Program Memory Size from 0 to 16K  Allows Access to Entire External Memory Map o High-Speed Architecture  1 clock-per machine cycle

The MDE 8051 trainer board is a powerful single-board micr trainer based on the Maxim DS89C4XX. The kit includes:    

The 8051 Trainer board Power supply Serial cable Wire kit w/ ten 6" jumper wires

The 8051 trainer is designed to accompany the textbook "The 8051 Microcontroller and Embedded Systems" by Muhammad Ali Mazidi, Janice Gillespie Mazidi, and Rolin McKinlay.

To learn how to test and program your 8051 trainer, please v the MicroDigitalEd website.

o o

 DC to 33 MHz operation Two full-duplex serial ports Programmable watchdog timer

8051 Architecture Microcontroller:

AT89C51 is an 8-bit microcontroller and belongs to Atmel's 8051 family. ATMEL 89C51 has 4KB of Flash programmable and erasable read only memory (PEROM) and 128 bytes of RAM. It can be erased and program to a maximum of 1000 times.

Pin Action of IC: In 40 pin AT89C51, there are four ports designated as P1, P2, P3 and P0. All these ports are 8-bit bi-directional ports, i.e., they can be used as both input and output ports. Except

P0 which needs external pull-ups, rest of the ports have internal pull-ups. When 1s are written to these port pins, they are pulled high by the internal pull-ups and can be used as inputs. These ports are also bit addressable and so their bits can also be accessed individually. Port P0 and P2 are also used to provide low byte and high byte addresses, respectively, when connected to an external memory. Port 3 has multiplexed pins for special functions like serial communication, hardware interrupts, timer inputs and read/write operation from external memory. AT89C51 has an inbuilt UART for serial communication. It can be programmed to operate at different baud rates. Including two timers & hardware interrupts, it has a total of six interrupts.

Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Function

Name P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 Reset P3.0

8 bit input/output port (P1) pins

Reset pin; Active high Input (receiver) for serial communication RxD Output (transmitter) for serial TxD communication External interrupt 1 Int0 External interrupt 2 Int1 Timer1 external input T0 Timer2 external input T1 Write to external data memory Write Read from external data memory Read

P3.1 8 bit input/output port (P3) pins

P3.2 P3.3 P3.4 P3.5 P3.6 P3.7

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Quartz crystal oscillator (up to 24 MHz) Ground (0V)

8 bit input/output port (P2) pins / High-order address bits when interfacing with external memory

Program store enable; Read from external program memory Address Latch Enable Program pulse input during Flash programming External Access Enable; Vcc for internal program executions Programming enable voltage; 12V (during Flash programming)

8 bit input/output port (P0) pins Low-order address bits when interfacing with external memory

Supply voltage; 5V (up to 6.6V)

Crystal 2 Crystal 1 Ground P2.0/ A8 P2.1/ A9 P2.2/ A10 P2.3/ A11 P2.4/ A12 P2.5/ A13 P2.6/ A14 P2.7/ A15 PSEN ALE Prog EA Vpp P0.7/ AD7 P0.6/ AD6 P0.5/ AD5 P0.4/ AD4 P0.3/ AD3 P0.2/ AD2 P0.1/ AD1 P0.0/ AD0 Vcc

How to write embedded C program in Keil Software: 1- Create new project. Select new project from project Tab. Then it’ll create new project. Select the desired path of the file.

2- Select the device type. DS89C430/420 in Dallas and 8051/8052 in Atmel

.

3- Once you have created a new project successfully, the Project Window shows the targets, groups, and files of your project. By default, the target name is set to Target 1, while the group’s name is Source Group 1.

4- Add source file: In the Project Window (on the left), expand the Target 1 folder. Right click on the Source Group 1 folder, then choose Add Files to Group ‘Source Group 1’ … .

5- Select the source file (.c file) you just created and saved. Click Add and then Close.

6- Compiling: First, you need to set the option to create a HEX file by clicking on Project from the menu bar and selecting Options for Target ‘Target 1’…

7- Create HEX file: On the Output Tab, check the option to Create HEX File. Click OK.

LAB 2 Objective: Execution of given program: Program: ORG 00h MOV P1, A MOV P2, A ACALL SDELAY BACK: MOV A, #0AAh MOV P1, A MOV P2, A ACALL SDELAY MOV A, #55h MOV P1, A MOV P2, A ACALL SDELAY SJMP BACK SDELAY: MOV R5, #45 H3: MOV R4, #242 H2: MOV R3, #255 H1: MOV DJNZ R3, H1 DJNZ R4, H2 DJNZ R5, H3

RET END

Task-2: ……

Switch on and off LEDs at once alternatively. Desired Program: ORG 00h MOV P1, A MOV P2, A ACALL SDELAY BACK: MOV A, #00h MOV P1, A MOV P2, A ACALL SDELAY MOV A, #FFh MOV P1, A MOV P2, A ACALL SDELAY SJMP BACK SDELAY: MOV R5, #45 H3: MOV R4, #242 H2: MOV R3, #255 H1: MOV DJNZ R3, H1 DJNZ R4, H2 DJNZ R5, H3 RET END