356f258e83
* use nuttx libc, disable system libc * use tlsf as default * update lhal flash driver * add example readme * add flash ini for new flash tool * add fw header for new flash tool
100 lines
1.8 KiB
C
Executable File
100 lines
1.8 KiB
C
Executable File
#include "FreeRTOS.h"
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#include "arch_time.h"
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/* Time */
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uint64_t arch_os_time_system(void)
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{
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uint64_t curr;
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curr = xTaskGetTickCount();
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return curr;
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}
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uint32_t arch_os_ms_now(void)
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{
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return (uint32_t)arch_os_time_system();
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}
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uint32_t arch_os_time_now(void)
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{
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return arch_os_ms_now() / 1000;
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}
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#if 0
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uint32_t arch_os_utc_now(void)
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{
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struct timespec ts;
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clock_gettime(CLOCK_REALTIME, &ts);
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return (uint32_t)ts.tv_sec;
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}
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int arch_os_utc_set(uint32_t utc)
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{
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struct timespec ts;
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ts.tv_sec = utc;
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ts.tv_nsec = 0;
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return clock_settime(CLOCK_REALTIME, &ts);
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}
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#else
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/*
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utc机制:
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基于time机制 和 utc_offset 本地维持一个utc时钟
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设置utc 时间将用于校准time
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*/
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static uint32_t utc_offset = 0;
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uint32_t arch_os_utc_now(void)
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{
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return utc_offset + arch_os_time_now();
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}
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//通过utc标准时间 校准系统，
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//返回系统时间偏移 (正数 表示系统时间快过UTC时间值)
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int arch_os_utc_set(uint32_t utc)
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{
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int ret = 0;
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uint32_t time_now = arch_os_time_now();
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struct timespec ts;
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if (utc_offset != 0) { //非第一次读取标准时间
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ret = utc_offset + time_now - utc; //本地时间 和 标准时间 差
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//暂时不调整斜率，保持简单策略
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//arch_os_time_tune(utc - utc_offset); //用标准时间间隔 调整系统时间
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utc_offset = utc - time_now; //再一次设置标准时间
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} else
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utc_offset = utc - time_now; //第一次设置标准时间
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/* set CLOCK_REALTIME */
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vTaskStepTick(time_now);
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return ret;
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}
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#endif
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uint32_t arch_os_ms_elapsed(uint32_t last_ms)
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{
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uint32_t now = arch_os_ms_now();
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if (last_ms < now)
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return now - last_ms;
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else
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return 0xFFFFFFFF - last_ms + now + 1;
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}
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void arch_os_ms_sleep(uint32_t ms)
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{
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vTaskDelay(ms);
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}
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