DMA and Multithread Program Control technology Computer Sample System of Vibration Signal

摘要

Combining with the necessary conditions and require of the vibration signal measurement experiments, this paper design and realize a vibration signal sample system based on DMA model and Multithread Program technology. By using this direct memory access transfer technology, can improve system characters, enhance cpu efficiency and resolve the difficulties of realizing the large high speed buffer. Combining with characters of multithread and multitask technology, the software platform has been given to control the sample system, when other experiments is going on. By contrast the result with the experimental data, this way has been shown great efficiency. It is significant to the same system.