Which debug hardware / IDE is best suited to run variable tracing in real-time and with high update rate (130kHz), without interfering with the software?

[MTeus.1]

I use the STLINK-V3MINI in combination with STM32CubeIDE and STM32G4x µC. With SWV a tracing of 2 variables with 20kHz is possible without data loss.

What are the limitations of the STLINK-V3MINI, and what justifies the purchase of an expensive debugger? - Is logging in this frequency range possible with an expensive device?

I refer to the following article which gives a good overview, but I get lost in the amount of possibilities.

https://www.st.com/content/ccc/resource/sales_and_marketing/presentation/product_presentation/group0/51/b5/28/37/25/93/48/83/stm32-stm8_software_development_tools.pdf/files/stm32-stm8_software_development_tools.pdf/jcr:content/translations/en.stm32-stm8_software_development_tools.pdf

Does anyone have experience with this topic?

[S.Ma]

The spi mode going to external DAC or LED strip is probably scalable too

[S.Ma]

Use a logic analyser to enabke data decoding from spi or fmc or qspi and put into a log file if needed.