QTrace provides real-time ETM instruction tracing for ARM Cortex M3/M4 processors running up to 180MHz.
Tracing at full processor speed is completely unobtrusive and no additional instrumentation code is required.
The hardware trace probe and Windows based trace analyser run side-by-side with your existing IDE and JTAG adapter so you won’t need to change them.
The target trace hardware is configured using a debugger script run from your IDE. Scripts are supplied for most common IDEs.
If you are unfamiliar with trace then click here for some background information.
There are many reasons why you should consider using a trace system. The bottom line is reduced development effort and time to market.
QTrace gives exceptional insight and detailed views of how your application is running in real-time. It helps to quickly locate bugs which would take much longer to find with conventional JTAG-only debugging.
With QTrace, you’ll get a step-change in visibility of what your code is doing that’s similar to the difference between JTAG debugging and the old printf approach.
More reasons for considering QTrace can be viewed here.
The QTrace analyser is a 64 bit PC application that runs on Windows 7 / 8.1 / 10.
It decodes and presents the trace data streamed from the QTrace hardware
probe and runs side-by-side with your existing IDE, ideally on a 2nd screen.
There are 3 primary trace data visualisations outlined below.
Shows live execution coverage as C/C++ and disassembly views as well as an execution heatmap. Enables loop timing, function navigation, conditional searches and more.Enlarge
Takes a snap-shot of target program execution using several trigger options including CPU exceptions. Displays a call stack as a function timeline.Enlarge
Displays sorted function statistics in real-time including number of calls, timing, interrupt frequencies. Highlights which functions are taking the most CPU time.Enlarge
Currently the QTrace Analyser currently supports the following devices:
1. In most cases, unlisted varients of the above devices will work with little or no modification to the supplied scripts. Contact us about support for varients or for devices from other manufacturers.
2. The QTrace Probe will work with any ARM Cortex M3/M4 device that complies with the ARM ETM timing specification.
QTrace Analyser has support for the following IDEs:
Below is a summary of the system requirements for successful tracing.
This is different to a 0.1″ pitch
Low cost USB 3.0 powered trace probe enabling real-time instruction tracing for ARM Cortex M3/M4 processors running up to 180MHz.
The QTrace probe does not have integrated JTAG/SWD
The STM32Eval demonstrator is an optional add-on for the QTrace system and is designed to showcase the QTrace capabilities without requiring an expensive development board or waiting for an in-house PCB to be ready
Contains everything needed to evaluate the QTrace system out-of-the-box. A quick-start guide highlights the key features of QTrace without needing to install an IDE or attach a JTAG adapter.