Stage Control Unit for Indigenous Processor Based System

Author(s):

Priyanka Rajendran , Toc H Institute of science and Technology; Dr.Gnana Sheela k., Toc H Institute of science and Technology

Keywords:

VIKRAM 1601, stage parameters, cro & semi cryo-stage, FPGA, Zener reference, data acquisition, On board computer(OBC)

Abstract:

Vikram 1601 is an indigenous processor based system for acquisition of stage parameters of launch vehicles, processing of stage parameters and issuing of commands based on the inputs. It can independently execute algorithms related to stage management, thus offloading mission computer from the related tasks. The peripherals of VIKRAM 1601 is ADC (AD7876),DAC (AD 664),Multiplexer (HI 506 A),input signal processing circuits, memory. Data acquisition and controlling of OBC is very important. So along with the controller it can it can support both the data acquisition and controlling of vikram 1601.The AD 7876 are fast,complete,12-bit analog to digital converters (ADCs).These converters consist of a track-and-hold amplifier, an 8 micro second successive approximation ADC ,a 3 V buried zener reference, and versatile interface logic. The AD664 is four complete 12-bit, voltage-output DACs on one monolithic IC chip. Each DAC has a double-buffered input latch structure and a data read back function. All DAC read and write operation occur through a single microprocessor-compatible I/O port.2K X 16 memory. Stage parameters are the input for the signal processing circuits. The control unit is designing using VHDL language and testing can be performing using Actel FPGA board.

Other Details:

Manuscript Id	:	IJSTEV2I9007
Published in	:	Volume : 2, Issue : 9
Publication Date	:	01/04/2016
Page(s)	:	38-44

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