介绍了TMS320VC5402的HPI主机接口原理,以一个简单的通信程序作为例子,详细说明通过HPI 口实现5402芯片内部的16 kB 双端口RAM与AT 89 C51单片机的通信过程. -Introduces the principle of TMS320VC5402 HPI host interface, a simple communication program as an example, a detailed descr iption of the chip to achieve by 5402 the HPI port and dual-port RAM 16 kB AT 89 C51 microcontroller communication process.