Programming Windows NT device drivers to operate non-interrupting embedded devices

Tomer Karin, Shlomo Weiss*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In lightly loaded systems or in systems with constant load that is known in advance, polling may be used to save interrupt resources or to simplify testing. To enable the use of polling in other environments, we introduce two polling methods designed to work in heavily loaded systems or in systems in which the load changes dynamically. Both methods have been implemented and tested on the Windows NT platform. The first method, Adaptive-Priority Polling, is implemented as a user-level application that adjusts the priority of the polling thread according to the CPU load. The second method, Adaptive-Rate Polling, offers higher resolution at the expense of more complex implementation that requires changes in the device driver code.

Original languageEnglish
Pages (from-to)27-35
Number of pages9
JournalMicroprocessors and Microsystems
Volume28
Issue number1
DOIs
StatePublished - 2 Feb 2004

Keywords

  • Device drivers
  • Embedded devices
  • Interrupts
  • Windows NT

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