串行控制器多道采样数据并行传输算法设计

摘要

为解决低成本串行控制器在多通道地震数据并行采集中的低传输效率问题,结合流水线模式和时间片轮换思想,提出了一种利用多SPI实现多路ADC并行高速采集状态下的数据并行传输控制算法,该算法利用时间重叠并行处理思想将多道ADC单次同步采样数据总传输时间压缩至略大于单道ADC单次采样数据传输时间,实现了系统连续高速采样条件下控制器和多路ADC之间的高速数据传输.%In order to enhance the transmission efficiency of the multi-channel seismic data parallel sampling using serial controller , under the inspiration of pipelining and rotation time slice, a transmission control algorithm was proposed using a group of SPI to realize parallel high - speed data acquisition and parallel transmission of multi-channel ADC. Using time overlap parallel processing , this method can make the sum of transmission time of single synchronous sampling data of multi-channel ADC slightly more than that of single channel ADC. Therefore, the transmission efficiency between the central controller and the multi-channel ADC has been improved.