基于FPGA与Raspberry Pi的SEU测试系统设计

为了检测在大气粒子辐照条件下，FPGA产生翻转效应的误码率，设计了一种基于FPGA与Raspberry Pi的单粒子翻转效应测试系统。该设计采用FPGA作为系统主控，接收GPS实时信息并根据GPS的秒脉冲进行工作；主控FPGA对被测FPGA进行数据下载与回读，并将比较结果发送到接口FPGA；首次采用Raspberry Pi作为上位机与接口FPGA进行通信，并将测试结果实时屏显同时保存到Micro SD卡，提高了存储的灵活性。通过青藏高原实测结果表明，该设计能实时显示测试结果，中子测试结果与中子探测仪保持一致，系统工作长时间保持稳定。现场获得了有效的测试数据，该系统满足设计要求。

SEU test system design based on FPGA and Raspberry Pi

In order to detect the bit error rate of upset effect under the irradiation of atmospheric particles, a single event upset test system based on FPGA and Raspberry Pi has been designed. The design uses FPGA as the system master, receives GPS real-time information and starts working according to the GPS second pulse; Control FPGA downloads data to and reads data from Interface FPGA, and sends comparison results to it. The system for the first time to use Raspberry Pi as upper computer to communicate with the Interface FPGA, Raspberry Pi needs to show the results in real time on screen and saves the test results to the Micro SD card at the same time, has improved storage flexibility. The field test result in Qinghai-Tibet Plateau shows that this design can display the test results in real time, the neutron test results are consistent with the neutron detector, and the system can work stably for a long time. Effective test data are obtained in field, the system meets the design requirements.