RTOS_aPeriodicInt

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This is a C language project that implements aperiodic interrupts using TimerG7. This sequence repeats every 7ms.

  • Task0, PA8 is toggled, then it waits 4ms
  • Task1, PA9 is toggled, then it waits 2ms
  • Task2, PA16 is toggled, then it waits 1ms

Assuming this is the highest priority interrupt, profiling shows these three tasks run without jitter.

Derived from Texas Instrument code

  • timx_timer_mode_periodic_sleep_LP_MSPM0G3507_nortos_ticlang
  • gpio_toggle_output_LP_MSPM0G3507_nortos_ticlang

Hardware Required

  • MSPM0G3507 LaunchPad™ Development Kit (LP-MSPM0G3507)
Pin assignments
  • Output: PA8 is Task0
  • Output: PA9 is Task1
  • Output: PA16 is Task2
  • Output: PB1 is toggled in main program
LaunchPad Jumpers
  • J21: Connects PA10 to XDS_UART
  • J22: Connects PA11 to XDS_UART
  • J14: SW1 to select PA9
  • J15: SW2 to select PA16
  • Remove J16 J17 J18: Disconnects light sensor from the microcontroller PA22 PA27 PA26
  • J5: Connects PB22 to blue LED2
  • J6: Connects PB26 to red LED2
  • J7: Connects PB27 to green LED2

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