Search International and National Patent Collections

1. (WO2018026452) SYSTEM AND METHOD FOR DISTRIBUTING AND REPLAYING TRIGGER PACKETS VIA A VARIABLE LATENCY BUS INTERCONNECT

Pub. No.:    WO/2018/026452    International Application No.:    PCT/US2017/040116
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Fri Jun 30 01:59:59 CEST 2017
IPC: G06F 11/36
G06F 11/34
Applicants: QUALCOMM INCORPORATED
Inventors: SHIRLEN, Martyn Ryan
Title: SYSTEM AND METHOD FOR DISTRIBUTING AND REPLAYING TRIGGER PACKETS VIA A VARIABLE LATENCY BUS INTERCONNECT
Abstract:
Systems and methods are disclosed for distributing and replaying trigger packets via a variable latency bus interconnect in a trace system. An embodiment of such a method comprises generating a plurality of trigger packets from a plurality of trigger sources on a system on chip. Each trigger packet defines a corresponding event and a corresponding system-generated timestamp. The plurality of trigger packets are distributed from the corresponding trigger sources to a centralized logic analyzer via a variable latency bus interconnect. The received triggered packets are re-ordered according to the corresponding system-generated timestamps into an order in which the corresponding events occurred. The received trigger packets are replayed in the order in which the corresponding events occurred.