In depth real-time debugging requires close interaction with the processor. Tracing shall provide a chronological picture of a system's inner workings - before or after a critical event - mainly to help analyzing a faulty program.
|Function Profiling||Code coverage||Execution sequence||Variable access|
|Measurement||Amount of execution time for each function||Execution of code||Call hierarchy and execution time sequence||Memory changes|
|Requirements||Code trace with tick information (Subroutine only possible)||Code trace without tick information||Code trace with tick information||Data trace with tick information|
|Results||Graphical chart and reports||Graphical chart and reports||Graphical chart||Graphical chart|
The Multi-core Debug Solution (MCDS) integrated on the Emulation Extension Chip (EEC) of Infineons TC27xED is a powerful trace and event generation module. This new full-featured emulator onsilicon opens a new age of debugging capabilities.It allows to observe and control the running system in a very purposeful way. Elaborated filter mechanisms and a high visibility to the system internals (cores and busses) are the key features of MCDS. To make use of them the MCDS has to be configured for each trace task using the Universal Emulation Configurator (UEC).
However, a 2.5 GB/s AURORA interface requires correspondingly high-performance hardware for signal acquisition, signal conditioning and preprocessing on the target. Therefore, not only is a trace pod with AGBT interface available for the UAD3+ from PLS, but it can also be equipped with up to 4 GByte of external trace memory. The Universal Access Device 3+ allows the recording of real-time trace information via a high speed serial trace based interface.
Hard real-time debugging requires close interaction with the processor. Tracing shall provide a chronological picture of a system inner working up to, starting from or in the vicinity an event, mainly to guide a human in understanding a faulty program. ETM and ETB were defined for this purpose and are available on the ARM derivatives.
UDE reconstructs the time aligned program flow from captured trace data and presents it in the multicore aware trace window. For higher system analysis code coverage as well as function profiling is available.
UDE supports program trace, data trace, watchpoint trace, ownership trace via the Nexus interface. This function is currently available - in combination with the Universal Access Device 3+ - for the Power Architecture™ derivatives MPC55xx, MPC56xx, MPC57xx from NXP as well as SPC56x, SPC57x, SPC58x from STMicroelectronics.
A 2-bit, 4-bit or even 12-bit and 16-bit wide trace data port with up to 250 MHz clock frequency are supported, whereby up to 1 megasamples can be recorded. With a compression of the trace data direct by the trace hardware, this represents a multiple of machine commands. Moreover, every sample can contain eight additional external hardware signals. Recording of the samples takes place synchronously to the Nexus clock frequency. This enables an optimal use of the trace memory and application optimized timestamps.
The trace stream can be exported as several output formats:
In the trace window shown trace information can be exported also as further output formats: