摘要
针对多通道心电测试仪对PC机接口提出的高数据传输带宽的要求,采用USB2．0规范推出的480Mbps的高速效据传输模式,介绍了一种以数字信号处理器ADSP2188为外部微控制器,以EZ-SX2系列USB接口芯片CY7C68001为接口控制芯片的USB2．0数据传输接口设计方法,并对软硬件设计上的关键技术作了详细的论述;经过测试,该接口的数据传输速率很好的满足了测试仪对传输带宽提出的要求,获得了实际运用。
According to the requirements of multi--channel cardiograph testing instrument for the wide bandwidth of data--transmitting interface of PC interface, adopting USB2.0＇ s 480Mbps high--speed data--transmitting ＂mode, a data--transmitting interface design of USB2. 0 based on microprocessor ADSP2188 and USB interface chip CY7C68001 of EZ--SX2 series is presented, and a detail dissertation about the key technique of the design in hardware and software is made. After testing, the data--transmitting speed well satisfies the required bandwidth of the testing instrument and have been applied in practice.
出处
《计算机测量与控制》
CSCD
2007年第4期498-500,共3页
Computer Measurement &Control
基金
国防科技大学人才基金(2006030301)。
关键词
USB2.0
数据传输接口
计算机测控
USB2.0
data-- transmitting interface
computer-- testing controller
