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config RT_USING_CPUTIME
bool "Enable CPU time for high resolution clock counter"
default n
help
When enable this option, the BSP should provide a rt_clock_cputime_ops
for CPU time by:
const static struct rt_clock_cputime_ops _ops = {...};
clock_cpu_setops(&_ops);
Then user can use high resolution clock counter with:
ts1 = clock_cpu_gettime();
ts2 = clock_cpu_gettime();
/* and get the ms of delta tick with API: */
ms_tick = clock_cpu_millisecond(t2 - t1);
us_tick = clock_cpu_microsecond(t2 - t1);
if RT_USING_CPUTIME
config RT_USING_CPUTIME_CORTEXM
bool "Support Cortex-M CPU"
default y
depends on ARCH_ARM_CORTEX_M0 || ARCH_ARM_CORTEX_M3 || ARCH_ARM_CORTEX_M4 || ARCH_ARM_CORTEX_M7
select PKG_USING_PERF_COUNTER
config RT_USING_CPUTIME_RISCV
bool "Use rdtime instructions for CPU time"
default y
depends on ARCH_RISCV64
help
Some RISCV64 MCU Use rdtime instructions read CPU time.
config CPUTIME_TIMER_FREQ
int "CPUTIME timer freq"
default 0
endif
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