Micro Controller Boards

GSAS MCB 51

GSAS MCB51 is a development board and supports a wide variety of 8051 (with on-chip ROM) compatible 8-bit micro-controllers. The 8051 family of micro-controllers are extensively used for embedded and real-time applications. This board is designed to be a general-purpose development board for single-chip MCU applications. The MCB51 development board is built around Atmel AT89C51ED2 / RD2 micro-controller which has 64K bytes of on-chip program memory.

  1. GSAS MCB 51 operates on both USB as well as +5V DC external power supply
  2. Optional Power Supply is required if GSAS Interface modules are to be connected to the GSAS MCB 51 board
  3. On-chip Flash Monitor supports Keil μVision Debugger, to download and debug the user application programs
  4. The Flash Monitor assists the user with the debugging features like Source level debugging, Single step, Breakpoints, Full speed execution etc., available in Keil μVision Debugger
  5. Onboard (16×2) LCD
  6. 24 port lines (i.e. P0, P1 and P2) are terminated on a 26-pin IDC header connector, which is compatible with GSAS Interface Modules
  7. All the CPU Signals are terminated on a 44-pin IDC header connector (site) for system expansion
  8. GSAS MCB 51 driver CD contains Keil evaluation software, sample programs for interface modules, Atmel’s FLIP utility for ISP, FTDI USB drivers etc.
  9. LED Indication for Transimtting(Txd(P3.1)) and Recieving(Rxd(P3.0))

  • Power Adaptor : GSAS ADP DC5; SMPS +5V DC @ 3A
  • GSAS Interface modules for training purpose: Calculator type Keyboard, Elevator,7 Segment Display, Dual DAC, 12 bit 8 Channel ADC, Logic Controller, Traffic Lights, Tone Generator, Stepper Motor, Opto Isolated Output, Relay Output, DC Motor Interface, TXDR ADC etc.,
  • Power supply : GSAS PS M2; + 5V DC@3A, ±12V @ 250mA and +30V@100mA (required for some of the above interface).
  • Interface Extension: The signals from 26 pin IDC header connector are brought out to four 26 pin IDC header connectors. Model: GSAS IF EXTN
  • RS-232-C cable

GSAS 51E

8051 family of micro-controllers and its derivatives are increasingly becoming popular for instrumentation and control applications due to its speed and powerful instruction set which are essential for real-time applications. This has created the need for a good trainer and development tools.

GSAS 51E (an economically priced microcontroller trainer) provides a complete solution for this requirement. It can be used as a flexible instructional aid in academic institutions and as a powerful development kit in R&D Labs.

The system firmware provides stand-alone monitor, serial monitor, one-line assembler, disassembler, driver for EPROM programmer and Parallel printer interfaces. GSAS 51E is supplied with comprehensive and user-friendly documentation as well as windows based communication software with online-help. The GSAS 51E trainer communicates with host PC through its onboard USB or RS-232C in serial mode.

  1. GSAS 51E operates on single +5V power supply either stand-alone mode or with host PC through its USB or RS-232C interface in serial mode.
    Stand-alone and serial monitor, support the entry of user programs, editing and debugging facilities like single stepping and full speed execution of user programs.
  2. On-board memory is 128Kbytes of which 88 Kbytes RAM has battery backup provision.
  3. Total on-board memory is 128K bytes of which 88K bytes RAM has battery backup provision.
  4. 48 I/O lines and four programmable interval timers.
  5. 9 Port lines of MCU brought out to the right angle ribbon cable connector including INT1.
  6. Buffered Bus Signals are available through flat ribbon cable connector for easy system expansion.
  7. Driver Software for file upload/download to/from host PC.

  1. Power Adapter : GSAS ADP-DC5; +5V@3A. (SMPS)
  2. PC keyboard for stand – alonemode of operation.
  3. EPROM Programmer Interface (2716 through 27512).
  4. 8751 adapter for the above interface.
  5. Interface modules for training purpose: Keyboard Elevator,7 Segment Display Dual DAC, 12 bit 8 Chanel ADC, Logic Controller, Traffic Lights, Tone Generator, Stepper Motor, Opto Isolated Ouptut, Relay Output, DC Motor Interface, TXDR ADC etc.,
  6. Study cards for 8255, 8279, 8251/8253 and 8259.
  7. Power Supply : +5V @ 3A; ±12V @250mA; +30V @100mA (required for some of the above)

Micro Processor Boards

GSAS86E

GSAS-86/88E is an economical version of our advanced microprocessor trainer GSAS-86/88-3. It is a powerful, general purpose microprocessor trainer which can be operated either with 8086 CPU or 8088 CPU in a maximum mode of operation. It can be configured for different modes of operation.

The basic system can be expanded through the system bus connector. The powerful firmware provides keyboard monitor, serial monitor, one-line assembler, disassembler and driver programs for parallel printer interface and EPROM programmer interface. GSAS-86/88E is supported with comprehensive and user-friendly documentation.

GSAS-86/88E can communicate with host PC using the DOS/Windows based Driver Software supplied. All the standard commands of the serial monitor of GSAS-86/88E are fully supported by this package with online help. In addition, object code files (HEX files generated using PC native tools like MASM, TASM) can be downloaded to GSAS-86/88E from the host PC, permitting the development in R&D labs and industries or for training in research and educational institutions. This Trainer communicates with host PC through USB or RS-232C in serial mode.

  1. GSAS 86/88E operates on single +5V power supply either in stand-alone mode or with host PC through its USB or RS-232C interface in serial mode.
  2. Works with either 8086 or 8088 CPU at 5 MHz.
  3. Keyboard and serial monitor support the entry of user Program, editing and debugging facilities like breakpoint, Single-step and full speed execution of user program.
  4. Built-in One Line Assembler, Disassembler in both serial and stand-alone modes of operation.
  5. GSAS 86/88E has provision for the on-board memory of 192K Bytes inclusive of 64K bytes of RAM with optional battery backup.
  6. Monitor resident parallel printer driver.
  7. 48 I/O lines and three 16-bit programmable interval timers.
  8. Provision for system bus expansion through two 26 pin flat ribbon cable connectors.
  9. User-friendly menu-driven windows driver software for file upload/download to/from host PC.
  10. 64K Bytes of software breakpoints implemented through Windows driver

  1. Power Adapter :+5V @ 3A (SMPS).
  2. PC keyboard for the stand-alone mode of operation.
  3. EPROM Programmer Interface to program 2716 through 27512.
  4. Interface modules for training purpose: Calculator type keypad, HEX Keypad, Elevator, Display, Dual DAC, 12 bit 8 channel ADC, Tone Generator, Stepper Motor, Opto-Isolated Input, Opto-Isolated Output, Relay Output, DC Motor Interface, TXDR ADC, Etc.,
  5. Study Cards for 8255, 8279, 8251/8253 and 8259.
  6. Power Supply: +5V@3A; ±12V@250mA; and +30V@100mA (required for some of the above interfaces)
  7. 3.6V Ni-Cd battery for power backup RAM.
  8. Parallel Printer Interface Cable.
  9. RS-232C cable.

GSAS 86/88-A

GSAS 86/88-A is an advanced version of our popular model GSAS 86/88-A. It is a powerful, general purpose 16-bit microprocessor trainer. The system expansion can be easily done through the system bus connectors.GSAS 86/88-A comes with keyboard monitor, serial monitor, single line assembler, disassembler and driver programs for parallel printer interface, PROM programmer interface. GSAS 86/88-A is delivered with comprehensive user-friendly documentation and windows based communication package with online help.

The kit can be operated in two modes:

  • Stand-alone mode using LCD and optional PC keyboard
  • Terminal emulator mode with host PC. GSAS 86/88-A serial monitor supports all the standard commands in terminal emulator mode

Also object code files generated for the applications developed using PC native tools like MASM, TASM, etc. can be downloaded to GSAS 86/88-A from the PC.

The advanced features of GSAS 86/88-A make it more suitable for the current day application of industries, R & D Labs and for the revised syllabus of all the educational ( Engineering, Science & Technology ) institutions.

  1. GSAS 86/88-A operates either in stand-alone mode (keyboard and LCD) or with host PC through its USB/RS-232-C / RS-485 interface in serial mode Works with either 8086 CPU in Max Mode at a frequency of 8 MHz.
  2. Provision for onboard 8087 NDP.
  3. Keyboard and serial monitor programs support the entry of user program, editing and debugging facilities like breakpoint, single-step and full speed execution of user program.
  4. Built-in one line Assembler, Disassembler in both serial and stand-alone modes of operation.
  5. Provision for the onboard memory of 1M bytes of which 896K bytes of RAM has optional battery backup.
  6. Onboard parallel printer port.
  7. Onboard 8 bit DAC using DAC 0800.
  8. Provision for on-board 12 bit ADC using AD1674.
  9. 48 I/O lines and three 16-bit programmable interval timers.
  10. On-board interrupts controller handles eight external interrupt sources Provision for cascading through expansion connector.
  11. Provision for system bus expansion through ribbon cable connector.
  12. Driver Software for file upload/download to/from host PC.

  1. Power Supply : +5V @ 3A, ±12V @ 250mA, 30V @ 100mA.
  2. PC keyboard for stand-alone mode of operation
  3. 8087 Numeric Data Processor.
  4. EPROM Programmer Interface (2716 through 27512)
  5. Interface modules for training purpose: Keyboard.Elevator, Display, Dual DAC,12 bit 8 Channel ADC, Logic Controller, Traffic Lights, Tone Generator. Stepper Motor, Opto Isolated Input, Opto Isolated Output, Relay Output, DC Motor Interface, Temperature Controller Interface etc.
  6. Study card modules for 8255, 8251 / 8253, 8279 and 8259.
  7. On board 12 bit ADC (ADC1674) with 8 channel MUX.
  8. Parallel Printer cable.
  9. RS-485 interface
  10. 3.6V Ni-Cd Battery back-up for RAM.
  11. RS-232 Cable.