中文摘要：

为减少数字控制系统的延迟时间，针对基于TMS320C6713DSP的数字控制平台，设计了一种结构简单、易于控制的高速数据接口卡，包含16位、40MHz采样率的A／D转换器以及16位、40MHz刷新率的D／A转换器，通过外部存储器接口EMIF实现DSP开发板与高速数据接口卡的控制信号传输与数据存取，并在CCS编译平台上编程控制数据的存取以及外部存储器接口EMIF的读写时序；实验结果表明，数字控制系统的延迟时间可低至1．1μs。

英文摘要：

In order to reduce the delay time of a TMS320C6713 DSP based digital control system, this paper represents a high speed data exchange board, which includes a 16--bit, 40MHz sample rate ADC and a 16--bit, 40MHz update rate DAC. The control signals transmis- sion and data access between DSP and Data Exchange Board can be easily achieved through EMIF. It is shown that the time delay of the digital control system can be as low as 1.1μs.