【摘要】 实现一种低复杂度、低成本的高速(10Msps~50Msps)数据采集方案。采用STM32F4系列的DCMI外设(并行接口)匹配AD9224的工作时序,读取A/D转换后的数据,并通过DMA直接写入内存。本文首先阐述该方案的可行性,然后搭建硬件平台并编写软件实现该方案。最后,总结该方案的设计思路、优势及其局限性,并拓展到其他并行接口。更多还原

【Abstract】 In the paper,a low-complexity,low-cost,high-speed(10 Msps~50 Msps)data acquisition scheme is proposed.The DCMI peripherals(parallel interface)of STM32 F4 series is used to match the working sequence of AD9224,the AD converted data is read and is written directly to memory through DMA.In the paper,the feasibility of the program is described,and then a hardware platform is built.Finally,the design ideas,advantages and limitations of the scheme are summarized,and it can be used to other parallel interfaces.更多还原