35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
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
|