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  • Hi Nino, I appreciate you taking the time to clarify this point for me. Thanks and regards Alex

  • Hi Nino, Thanks for your reply. I am measuring micro seconds. I made a mistake with the time unit in the last post. All time units should have been us not ms. Quote: “Unfortunately Sysview does not seem to be measuring the correct length of the ADC-DMA, being a factor of 6 or so out. Should be measuring 0.5us but currently measuring 3us. However, the period between interrupts ADC-DMA is measured correctly at 18.125us. ” I am not so much worried about the overhead, as I am about the accuracy of t…

  • Thanks for your quick reply Nino. I changed the RTT compilation to include the ASM RTT_Write() routines. Unfortunately Sysview does not seem to be measuring the correct length of the ADC-DMA, being a factor of 6 or so out. Should be measuring 0.5ms but currently measuring 3ms. However, the period between interrupts ADC-DMA is measured correctly at 18.125ms. Would the post mortem mode be more effective in my case? Can I somehow sacrifice real time behavior for a short measurement window and finer…

  • Hi all, I am using Systemview on a NoOS STM32L4 @80MHz, jlink arm pro, win10, atollic IDE. I have followed the "How to instrument a NoOS application with SystemView" wiki to setup my system. I would have liked to measure the ADC-DMA that is interrupting every 18us, with the ISR lasting about 0.5us. I have measured above numbers using the mcu pin toggling. Is this feasible or would you not recommend using Sysview for such high frequency interrupts. If so, what overheads can I expect? Is there a p…