PEX8311芯片在图像模拟源中的应用-《计算机技术与发展》

文章信息/Info

作者:: 申得玉[1; 2; 3; 4]; 张善从[2; 4]; [1]中国科学院光电研究院;[2]中国科学院空间应用工程与技术中心;[3]中国科学院研究生院;[4]北京国科环宇空间技术有限公司

摘要:: 针对一些基于FPGA的图像模拟源只能通过上下电来控制发送数据的局限性,文中搭建了一套测试系统,该系统分为FPGA逻辑数据源模块和PC上位机软件两部分。 FPGA逻辑数据源模块负责模拟数据的生成和发送；PC上位机软件负责对FPGA逻辑数据源模块的控制；两部分之间通过PEX8311芯片进行交互。采用PEX8311芯片,连接PC上位机软件和FPGA逻辑,通过PC上位机软件向PEX8311发送指令,利用PEX8311将指令传给FPGA,实现了PC上位机软件与FPGA板卡之间的交互,实现了PC机对FPGA逻辑的灵活控制,使得图像模拟源能够被灵活控制发送数据,也使测试人员能够更好地测试数据传输设备功能并及时发现漏洞

Abstract:: For the limitation that some image emulators based on FPGA are controlled to send data only through power on and off,a test system is set up. The system is divided into two parts of the FPGA logic data source module and PC software module. FPGA logic data source module is responsible for the generation and the sending of simulation data;PC software module is responsible for the control of FPGA logic data source module. The two parts interact through the PEX8311 chip. The system adopts PEX8311 chip,connects the PC host computer software and FPGA logic,sends instructions to the PEX8311 chip via a PC host computer software,and the instructions will be passed to the FPGA logic via the PEX8311 chip,realizing the control of the FPGA logic by the PC and realizing the interaction be-tween the FPGA devices and the PC,not only making the image emulator to be controlled flexibly to send data,but also making test engi-neers better test the function of the data transmission devices and detect the vulnerability