Research and Development for the Data, Trigger and Control Card in Preparation for Hi-Lumi LHC

<!--HTML-->When the Large Hadron Collider (LHC) increases its luminosity by an order of magnitude in the coming decade, the experiments that sit upon it must also be upgraded to continue to their physics performance in the increasingly demanding environment. To achieve this, the Compact Muon Solenoid (CMS) experiment will make use of tracking information in the Level-1 trigger for the first time, meaning that track reconstruction must be achieved in less than 4 $\mu$s in an all-FPGA architecture.<br>MUonE is an experiment aiming to make an accurate measurement of the the hadronic contribution to the anomalous magnetic moment of the muon. It will achieve this by making use of similar apparatus to that designed for CMS and benefit from the research and development efforts there.<br>This thesis presents both development and testing work for the readout chain from tracker module to back-end processing card, as well as the results and analysis of a beam test used to validate this chain for both CMS and the MUonE experiment.