Abstract
A common data acquisition unit (CDAU) has been designed for data transmission in the radiation imaging detectors in the Heavy Ion Facility in Lanzhou (HIRFL). With a bandwidth of 64 Gbps, this CDAU can meet the need for most of the experiment. The CDAU can connect four front-end readout cards (FECs) through optical links for data collection, packaging, and transmission. This CDAU is based on the PCI Express (PCIe) Gen3 bus, using Xilinx Kintex Ultrascale series FPGA, combined with the periphery circuits design to complete the data acquisition system. This paper will discuss the design and performance of the CDAU.
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