UNITED ELECTROTECHNOLOGIES

ADVANCED MICROCONTROLLER LABORATORY (AMC)

The UE- Advanced Microcontroller Laboratory System (AMC), is built around the Intel 80c51/ 80c31 mC belonging to the famous MCS-51 series of Microcontroller. The systems are user friendly and very flexible. The assembler and the downloader provided with the system makes it possible for the user to use these systems in training, application and development. Onboard full duplex serial interface (with RS232C and RS485 converters), 4-Line LCD (With a total of 20*4= 80 Character capacity), 8K NVRAM (as User Program Memory), BUS extensions and Add on cards provided with 48 DIO lines, 8 channel multiplexed 12-bit resolution ADC, DAC and Communication module, makes it a dynamic system for any application development.

Main features of the UE-AMC:

• The UE-AMC system can be operated from the PC through the serial port with the help of the assembler being provided by United Electrotechnologies.
• The onboard LCD makes it possible for the user to debug the program during its execution.
• The 8K NVRAM enables the user to store the program even after power down and execute the same at the user convenience (provided that no new program is down loaded again).
• The Digital, Analog and Communication modules, make it possible for the user to use the system in automation applications and even in data acquisition systems as well.

Peripherals and Interfacings provided in the Controller Card:

• Keyboard Controller ® 8279.
• Serial Communication using 80C51’s in built UART (Digital or RS232C or RS485 Selectable O/p’s).
• RS232 Communication port for 8051 UART using MAX-232
• RS485 Communication port for 8051 UART using 75174 and 75175.
• Display ® 20*4=80 Character LCD.
• Bus Expansion ® Standard address, data, Control signals, interrupts and extra chip selects available at a 60-Pin male FRC Connectors
• Memory

v      27C256 ® EPROM of 32K (Monitor Code – Program memory)

v      62256 ® Static RAM of 32K  (Data Memory)

v      M4808 ® NVRAM of 8K (Program Memory for User Programs) 

Peripherals and Interfacings provided in the Communication Module:

• Serial Communication -- Two 8251 USARTs.
• Parallel communication – using Intel 8255
• Programmable Internal Timer ® 8254.
• RS232 Communication port for 8251 USART using MAX-232
• Analog Modulation and Demodulation unit using FSK technique.
• Fiber Optic Interface using FO TX and RX modules.

Peripherals and Interfacings provided in the Digital IO Module:

• Parallel Port ® Two 8255’s (6 Parallel Port’s)
• Interrupt Controller ® 8259.
• 24 Switch Inputs and 24 Digital outputs using ULN2003a.

Peripherals and Interfacings provided in the Analog IO Module:

• ADC ® AD574A with two Multiplexer provides four differential I/p analog channels
• DAC ® Four AD7541 with four amplifier and filtered analog o/p’s.

Subroutines available readily for the user with the Monitor code:

The sub routines are available for the user in monitor ROM supplied by UE. These can be called in the user programs. These routines will help users in their application development

Experiments that can be performed with UE-AMC systems:

1.       Usage of 8051 accumulator (A) and the bank registers for various mathematical operations

2.       Accessing Port 1 of 8051 for bit setting and resetting and verification of the same using CRO.

3.       To generate the clock at Port-1 of 8051

4.       Direct and Indirect Register bank Addressing

5.       Accessing the 8051 internal RAM area

6.       Bit addressing in 8051

7.       Usage of DPTR register for External memory accessing (read and Write operation)

8.       Usage of different Jump statements in 80c51

9.       Conditional Branching and Loop Control in 8051

10.   Subroutines: passing subroutine parameters via the bank registers and Passing subroutine parameters via the stack.

11.   Creation of a variable array in the RAM and then accessing the same for reading and writing

12.   Interfacing LCD available on the main controller card

13.   Interfacing a Keyboard controller available on the main controller card

14.   Accessing the 80c51 internal serial port – to establish the serial communication between the main controller card and the PC with different communication parameters.

15.   Interfacing the Programmable Interrupt controller available on the Digital IO module

16.   Interfacing the Digital Input/ Output lines available on DIO module (To Understand the operation of 8255, initialize and program the same)

17.   Interfacing Analog IO module.

·         To understand the operation of ADC & DAC.

·         To learn to initialization, read digital data from ADC, write data on to DAC and hence to learn the analog interface

·         To learn sampling of multiple channels (4 channels), to the ADC. Read the Digital data and reproduce the same signals at the outputs of the respective DAC’s simultaneously.

18.   Interfacing the 8255 PPI provided on Communication module

• To understand the operation of the PPI.
• To learn to initialize the PPI.
• To establish the parallel mode of communication between two UE-AMC systems using 8-bit parallel cable.

19.   Interfacing the USART provided on Communication module

• To understand the operation of the USART.
• To learn to initialize the USART.
• To Establish the asynchronous serial mode of communication between UE-AMC system and the PC
• To establish the asynchronous serial mode of communication between UE-AMC systems and any other DTE using RS232 cable/ Telephone cable/ Fiber Optic.

20.   Applications implemented in different areas of technology, where Embedded controllers are used, are provided along with trainer systems.

Deliverables:

MCS51 based micro controller based nodes	1 No.
Analog IO Card	1 No.
Digital IO Card	1 No.
Communication Module	1 No.
SMPS Power Supply	1 No.
RS 232 downloadable cable	1 No.
Parallel Cable of 1 meter length	1 No.
Fiber Optic Cable	1 No.
Telephone Cable	1 No.
60-pin FRC cables	3 Nos.
Patch cards	8 Nos
Microphone and Speaker	1 Set
CD with Sample codes for all experiments and UE-SerCom software	1 No.
Detailed User, Reference and Application Manuals	1 Set

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