A Primer for Telemetry Interfacing in Accordance with NASA Standards Using Low Cost FPGAs

Jake McCoy, Ted Schultz, James Tutt, Thomas Rogers, Drew Miles, Randall McEntaffer

Research output: Contribution to journalArticle

Abstract

Photon counting detector systems on sounding rocket payloads often require interfacing asynchronous outputs with a synchronously clocked telemetry (TM) stream. Though this can be handled with an on-board computer, there are several low cost alternatives including custom hardware, microcontrollers and field-programmable gate arrays (FPGAs). This paper outlines how a TM interface (TMIF) for detectors on a sounding rocket with asynchronous parallel digital output can be implemented using low cost FPGAs and minimal custom hardware. Low power consumption and high speed FPGAs are available as commercial off-the-shelf (COTS) products and can be used to develop the main component of the TMIF. Then, only a small amount of additional hardware is required for signal buffering and level translating. This paper also discusses how this system can be tested with a simulated TM chain in the small laboratory setting using FPGAs and COTS specialized data acquisition products.

Original languageEnglish (US)
Article number1640002
JournalJournal of Astronomical Instrumentation
Volume5
Issue number1
DOIs
StatePublished - Mar 1 2016

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Astronomy and Astrophysics

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