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49 lines
1.5 KiB
49 lines
1.5 KiB
4 years ago
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/*****************************************************************************
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* uart.h: Header file for NXP LPC17xx Family Microprocessors
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*
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* Copyright(C) 2017,SensorControl
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* All rights reserved.
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*
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* History
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* 2009.05.27 ver 1.00 Prelimnary version, first Release
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*2017.01.10 ver 1.10 rename tick.h tick.c
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****************************************************************************************/
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#include "tick.h"
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struct _s_nos_tick_ s_nos_tick;
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/*********************************************************************************************************
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* Function Name: timer0Isr
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* Description: TIMER0 中断处理函数
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* Input: ��?
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* Output: ��?
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* Return: ��?
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*********************************************************************************************************/
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void L1_tick_init(void)
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{
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s_nos_tick.jiffies = 0;
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s_nos_tick.t_1s = 0;
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s_nos_tick.t1s_heatbeart= 0;
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}
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//JIFFIES回绕问题没有解决 参见 linux time_after宏定义
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void L1_tick_tick (void)
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{
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///65535*65535/3600/24/365=139nian/s=1.39nian/10ms
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///相当于1.39年后t_10ms 溢出，对于电池供电的系统而言 完全可以满足
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// 4,294,836,225 = 65535*65535 ;3600*24*60*60 = 31,536,000秒/年
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//s_nos_tick.t_50ms ++;//D_led_D1_REV(); 20160522验证
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s_nos_tick.jiffies++;
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if(s_nos_tick.jiffies % HZ == 0)
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{
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// 65535*65535/24/60/60/356/10 =12.7年
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s_nos_tick.t_1s ++;
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s_nos_tick.t1s_heatbeart = 1;
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}
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}
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