Universal debug engine 4.4 targets heterogeneous multicore SoCs

January 07, 2015 // By Julien Happich
PLS Programmierbare Logik & Systeme's Universal Debug Engine (UDE) 4.4 has been designed with enhanced debugging procedures for complex system-on-chips (SoCs) with heterogeneous controller cores, optimized data visualization in system-level debugging as well as dedicated support of a wide range of state-of-the-art 32-bit multicore SoCs of different manufacturers.

Control of the respective multicore SoCs and their debugging is carried out with the UDE 4.4 within a specifically optimized user interface. Various colours determinable by the user and even definable groups of views for individual function units ensure a fast overview and simple navigation, also in complex devices. Both separate and synchronized control of the active units is optionally possible.

The different on-chip debug logic of the chip architectures is fully supported and the UDE offers the user a vendor-independent, and at the same time, a consistent user interface. Among other things, with the UDE 4.4 trace data streams can now be stored in a databank and thus used for later offline analysis. Furthermore, measurement results can be automatically accumulated for carrying out code coverage measurements with limited on-chip trace memory.

In order to enable branch coverage measurements on highly optimized code, the UDE 4.4 defines an enhancement of the DWARF standard, freely available for all compiler manufacturers. In addition to the presentation of variables at runtime of the program, a similar presentation based on data trace is also possible.

With PLS' Universal Access Device 3+ (UAD3+), a powerful hardware tool with 4 GB external trace memory is available for recording external trace data. Thanks to an Aurora trace pod supporting four serial high-speed lanes each with up to 3.25 gigabit per second (Gbit/s) transfer rate, the UAD3+ is also well equipped to meet future requirements.

In particular, in the areas of trace data analysis, macros and multicore breakpoints, the object model of the UDE, which serves for test automation and interaction with other tools, is also significantly enhanced. This feature-rich and flexible software interface of the UDE is used by further external tools for target access, flash programming and target control.

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