Progress report L2STT April 2000 - VIPA crates received from Rittal, shipped to Fermilab for testing by PREP - started detailed engineering design of FRC components, particularly issues related to PCI interface - continued studies of the effects of L1CTT track list truncation - began work on a mechanical/electrical test board to verify the feasibility of connector alignment between the motherboard and daughterboards - continued design of STT motherboard - assembled prototype of link receiver board - began testing prototype of link receiver board - began design of link transmitter card - continued design of STC daughtercard and made progress in definition of data format and understanding of control logic, buffering, and initialization requirements - continued development of VHDL code for cluster finder and hitfilter: - began to implement code for monitoring and L3 buffering - made changes to the algorithms for the cluster finder and the centroid calculation (store the address of each strip used in a centroid calculation, define a cluster as a set of continuous strip numbers, find the pulse height (dE / dx) of a cluster) - fit hitfilter into Altera EPF10K200EQC208-1 - continued layout of TFC - continued detailed work on "final" LUT-based track fitting algorithm - made progress in understanding of monitoring and downloading requirements for STT system - continued STT simulator debugging (in particular clustering and tracking) - began to address issues related to new trigger simulator/emulator framework