中国物理学会高能物理分会第十一届全国会员代表大会暨学术年会

Giant Radio Array for Neutrino Detection (GRAND) is a high-energy neutrino and cosmic ray telescope under construction, it detects particles by radio emissions of extensive air shower. A single site of the array includes one central station and many detection units, the firmware running on the Data Acquisition (DAQ) board of detection units performs baseline correction, filtering and triggering on the ADC sampling data, and communicates wirelessly with the central station to obtain instructions and transmit timestamps or science data. We are updating the firmware design based on the previous work.