ardupilot/libraries/AP_HAL/system.cpp

#include "system.h"

uint16_t WEAK AP_HAL::millis16()
{
    return millis() & 0xFFFF;
}

void WEAK AP_HAL::dump_stack_trace()
{
    // stack dump not available on this platform
}
AP_HAL: add millis16 to HAL; provide weak implementation This wraps every minute or so - but if you only need to track intervals under ~65 seconds could save RAM 7 years ago			`#include "system.h"`

			`uint16_t WEAK AP_HAL::millis16()`
			`{`
			`return millis() & 0xFFFF;`
			`}`
AP_HAL: move dump_strack_trace into HAL Use a weak definition to allow subclasses to override 6 years ago
			`void WEAK AP_HAL::dump_stack_trace()`
			`{`
			`// stack dump not available on this platform`
			`}`