IEEE Transactions on Industrial Electronics · 1991 · 10 citations · 4 references
EngineeringComputer EngineeringElectrical EngineeringEmbedded SystemsInstrumentationReal-time SystemsDigital InstrumentationDirect Memory AccessTime MeasurementTiming AnalysisDirect Memory Access (Dma)Direct Memory Access ArchitectureDirect Memory Access Transfer ModesPeripheral Direct Memory AccessPulse CountingSpeed Measurement SystemsTimer ArchitectureTimer Design
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.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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