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Timebase

By default, STM32CubeMX uses the Systick timer as the system timebase, but other timers can be manually selected as well.

For bare-metal systems, it is recommended to keep Systick as the timebase, but the interrupt priority of Systick should be set to the highest.

For RTOS-based systems, it is advisable to assign a different timer as the timebase and also set its interrupt priority to the highest.

Example​

The code generator will produce the following based on the timebase configuration in STM32CubeMX:

// Using Systick as the timebase
STM32Timebase timebase();
// Using a hardware timer as the timebase
STM32TimerTimebase timebase(&htimX); // X refers to the configured timer used as the timebase

Usage​

// Get microsecond-level timestamp
LibXR::Timebase::GetMicroseconds();

// Get millisecond-level timestamp
LibXR::Timebase::GetMilliseconds();