Firmware Development for the Phase-2 Upgrade of the Calorimeter L1 Trigger for the CMS Detector

The CMS Level-1 trigger, including the calorimeter trigger, will receive a massive upgrade to avail of the benefits and tackle the challenges posed by the High-Luminosity LHC (HL-LHC). Calorimeter trigger is planned to employ high-speed optical links (28 Gbps) and Xilinx Large UltraScale+ FPGA to meet the high bandwidth and parallel computing demands of the HL-LHC. The system will handle 25 times more granularity and intends to process the newly commissioned high-granularity calorimeter (HGCAL) information. To process such high granular information from large calorimeter geometry, trigger algorithms are proposed, which provide better performance in terms of latency, area, and scalability.