nuttx

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Matteo Golin 2d768c294e arch/delays: Invalid default value for BOARD_LOOPSPERMSEC

Changes the default value for CONFIG_BOARD_LOOPSPERMSEC to -1, which is
invalid. All boards that forget to configure this value will encounter a
static assertion at compile time, enforcing that configurations
upstreamed to NuttX have calibrated values for correct delay timings.

Boards which implement ALARM_ARCH or TIMER_ARCH do not rely on the
busy-loop delay implementation and thus only have a run-time check to
ensure proper delay-timings (in the case where delays are used before
the alarm/timer driver is registered).

Some boards already in the NuttX upstream do not have calibrated values,
but there are no users who currently own the board to submit a
calibrated value for the configurations to use. In this scenario, the
value is temporarily set to 0 and a warning is displayed so that users
of these boards are informed of the calibration process.

Signed-off-by: Matteo Golin <matteo.golin@gmail.com>

2026-02-25 15:00:03 -03:00

clock_adjtime.c

…

clock_delay.c

arch/delays: Invalid default value for BOARD_LOOPSPERMSEC

2026-02-25 15:00:03 -03:00

clock_getres.c

…

clock_gettime.c

sched/clock: fix CLOCK_BOOTTIME and CLOCK_MONOTONIC handling

2026-02-25 16:15:23 +08:00

clock_initialize.c