DocumentCode
1087585
Title
Speed measurement using the improved DMA transfer method
Author
Prokin, Milan
Author_Institution
Fac. of Electr. Eng., Belgrade Univ., Yugoslavia
Volume
38
Issue
6
fYear
1991
fDate
12/1/1991 12:00:00 AM
Firstpage
476
Lastpage
483
Abstract
A wide-range speed measurement method using the direct memory access (DMA) transfer of a content of the timer to the memory is presented. The DMA method is based on both pulse counting and time measurement during the constant sampling time. The hardware configuration and algorithms for a microcontroller implementation are also presented. The proposed method is suitable in systems using microcontrollers with integrated DMA controller and timers. Limitations and sources of errors are discussed in detail
Keywords
computerised instrumentation; file organisation; velocity measurement; constant sampling time; direct memory access transfer; pulse counting; time measurement; wide-range speed measurement; Control systems; Counting circuits; Frequency; Hardware; Microcontrollers; Pulse measurements; Registers; Sampling methods; Time measurement; Velocity measurement;
fLanguage
English
Journal_Title
Industrial Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0278-0046
Type
jour
DOI
10.1109/41.107104
Filename
107104
Link To Document