【摘要】 结合TMS320C6713BDSP和CPLD数据采集平台,简述了C6713BDSP的硬件结构,重点介绍了增强型直接存储器访问(EDMA)的硬件结构和配置方法。数据经CPLD及DSP外部存储器接口(EMIF)由EDMA传输到DSP片内,传输过程不需要CPU干预,并且采用乒乓缓冲结构,CPU同时可以进行数据处理,提高了数据传输、处理的速度,保证了实时性。更多还原

【Abstract】 This paper introduces hardware architecture of TMS320 C6713B DSP simply,hardware architecture and configuration method of Enhanced Direct Memory Access(EDMA)in detail,based on TMS320C6713B DSP and CPLD data acquisition system.Data flow through CPLD and External Memory Interface(EMIF),and transmit into DSP by using EDMA.By adopting ping-pong buffering strategy,transmission procedure doesn’t need CPU’s interference and CPU can process data at the same time,which speeds up data transmission and data processing,and meet the real-time requirement.更多还原