Each LeCroy Protocol analyser uses two special pieces of code in addition to the user application. These are called the “BusEngine” and “Firmware” and are essential to the operation of the analyser in combination with a particular application revision. This application note looks at why they are needed and how to update or change them if required. A p p l i c a t i o n N o t e Protocol Analyser Firmware and Bus Engine Matthew Dunn LeCroy PSG analysers by comparison, typically only store Introduction information when a full packet has been Each LeCroy Protocol analyser uses two received. special pieces of code in addition to the user Additionally modern serial protocols typically application. These are calle……