mbed-os

Commit Graph

Author	SHA1	Message	Date
Kevin Bracey	de915a034b	Correct SysTimer absolute time calculations `SysTimer::set_wake_time` incorrectly assumed that the `SysTimer`s tick count and the underlying HAL timer had the same zero base. This normally holds, at least approximately, in RTOS builds where the HAL timer starts from zero at the same time the SysTimer is initialised. But in bare metal builds, the HAL timer could be started some time before the SysTimer, giving a significant discrepancy. Beyond that, there's no requirement for HAL timers to start from zero in the spec. Record the HAL timer start time to get the conversion right.	2020-01-29 15:28:20 +02:00
Kevin Bracey	a1bbbb8845	SysTimer: Suppress implicit virtual warning	2019-12-05 15:48:36 +02:00
George Psimenos	bd95c53a4c	Move source files and add Doxygen labels	2019-09-10 14:31:24 +01:00

Author

SHA1

Message

Date

Kevin Bracey

de915a034b

Correct SysTimer absolute time calculations

`SysTimer::set_wake_time` incorrectly assumed that the `SysTimer`s tick
count and the underlying HAL timer had the same zero base. This normally
holds, at least approximately, in RTOS builds where the HAL timer starts
from zero at the same time the SysTimer is initialised.

But in bare metal builds, the HAL timer could be started some time
before the SysTimer, giving a significant discrepancy.

Beyond that, there's no requirement for HAL timers to start from zero in
the spec.

Record the HAL timer start time to get the conversion right.

2020-01-29 15:28:20 +02:00

Kevin Bracey

a1bbbb8845

SysTimer: Suppress implicit virtual warning

2019-12-05 15:48:36 +02:00

George Psimenos

bd95c53a4c

Move source files and add Doxygen labels

2019-09-10 14:31:24 +01:00

3 Commits (69c6f29ab67a1f39f13b63fca72b6c0d80c67430)