Stefan Waldschmidt / Mbed OS Test_Interrupt_Response_Time

Test the response time from toggling a GPIO input to setting a GPIO output from the interrupt handler.

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

Changes

RevisionDateWhoCommit message
3:e4a312a8ad61 2019-05-10 stefanwaldschmidt upgrade form mbed 2 to mbed-os-5.12.3; default tip
2:57e26cc56a38 2019-05-09 stefanwaldschmidt remove doc folder
1:28151cb257da 2019-05-09 stefanwaldschmidt add scope screenshot (bmp)
0:3c3c98b93d93 2019-05-09 stefanwaldschmidt initial