Stefan Waldschmidt / Mbed OS Test_Interrupt_Response_Time

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Table of Contents

  1. Measure the interrupt response time for a GPIO input
  2. mbed-os-5.12.3
  3. OS 2

Measure the interrupt response time for a GPIO input

This mbed program registers "on rise" and "on fall" interrupt handlers for a GPIO input and drives a different GPIO output to follow the input.

Measurements are performed on a NUCLEO-F767ZI board https://os.mbed.com/platforms/ST-Nucleo-F767ZI/.

mbed-os-5.12.3

  • rising: 1.1 usec - 1.3 usec
  • falling: 1.1 usec - 1.3 usec

/media/uploads/stefanwaldschmidt/mbed-os-5.12.3.gif

OS 2

  • rising: 0.7 usec - 1.2 usec
  • falling: 0.8 usec - 1.3 usec

/media/uploads/stefanwaldschmidt/imag001.gif

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