Some questions about SystemView

ayildirim · Feb 8th 2016, 4:24pm

Hello,

I recently evaluated SystemView tool with FreeRTOS. It looks really promising. Thanks for making this tool free!
I have some questions about SystemView and will be glad if someone from Segger could answer them.

1) Knowing the existance of embOSView tool, which also has support for UART/Ethernet communication alternatives,
Is there a plan to add alternate communication ports to SystemView?

2) Instead of using RTT feature of J-Link debug probes, Is it possible to use ITM debug buffers of Cortex-M microcontrollers?
Which will make the tool more generic. When I check RTT statistics from J-Link Control Panel, I see 5-6 KB/s realtime transfer throughput.
Is it really necessary to tie SystemView tool to J-link debug probes?

3) Is there a plan to add thread stack usage information within SystemView?

Finally, thanks for this great tool, i am planing to actively use it on our upcoming project.
Regards

SEGGER - Johannes · Feb 10th 2016, 6:15pm

Hi,

Thanks for the great feedback.

Communication alternatives might be available in the future.

The downside of using UART/Ethernet and the ITM Buffers (SWO) is,
that the data has to be actively sent by the application, which is way more intrusive than simply writing into a RAM buffer.
RTT is the least intrusive way of instrumentation.

Stack usage might be available in the future, too.
But same here:
Checking how much stack is free by the application can be more intrusive, too, and influences the system timing.

Best regards
Johannes

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