摘要
设计了一种基于FPGA的遥测PCM信号源,该信号源采用FPGA作为主控芯片,U盘读写控制芯片CH376读取U盘中的遥测数据,并以一定码速率发送出去产生PCM信号。数据的发送采用边读取、边发送的方式,在FPGA内部配置了两块存储器,采用乒乓操作保证数据发送的连续性。软件主程序的编写是设计核心,运行在Nios II软核处理器上,控制硬件模块协调工作。
In this paper,a kind of PCM signal source is designed,which uses FPGA as the main chip,the U disk read and write control chip CH376 get the data,and then sends the data with a certain code rate to generate a PWM signal. The data is read when data is sent. In the internal of FPGA,it configurates two pieces of memory, and the ping-pong operation is adopted to ensure the continuity of data transmission. The main program is the core of design,it runs on the Nios Ⅱ processor,which controls the hardware module to work coordination.
出处
《单片机与嵌入式系统应用》
2016年第7期54-56,共3页
Microcontrollers & Embedded Systems
