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94 lines
2.6 KiB
94 lines
2.6 KiB
1 year ago
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#include "ttss_time_stc.h"
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#define D_TIMER_COUNT(t,clk,timeInUs) (U16)(65536 - (clk) / 1000 * timeInUs / 1000 / t)
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/*************初始化定时器0由 stc-isp v6.86L定时器计算器生成******************/
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#if(MainFre_5M == D_sys_MainFre)
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#elif(MainFre_22M == D_sys_MainFre)
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void L0_timer0_Init(void)//void Timer0Init(void) //12500微秒@22.1184MHz
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{
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AUXR &= 0x7F; //定时器时钟12T模式
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TMOD &= 0xF0; //设置定时器模式
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TL0 = 0x00; //设置定时初始值
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TH0 = 0xA6; //设置定时初始值
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TF0 = 0; //清除TF0标志
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TR0 = 1; //定时器0开始计时
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}
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#elif(MainFre_27M == D_sys_MainFre)
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#elif(MainFre_44M == D_sys_MainFre)
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void L0_timer0_Init(void)/////void Timer0Init(void) //12.5m秒@44.0800MHz
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{
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AUXR &= 0x7F; //定时器时钟12T模式
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TMOD &= 0xF0; //设置定时器模式
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TL0 = 0xA3; //设置定时初始值
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TH0 = 0x4C; //设置定时初始值
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TF0 = 0; //清除TF0标志
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TR0 = 1; //定时器0开始计时
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}
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void L0_timer4_Init(void)/////void Timer4_Init(void) //100微秒@44.2368MHz
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{
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T4T3M |= 0x20; //定时器时钟1T模式
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T4L = 0xB8; //设置定时初始值
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T4H = 0xEE; //设置定时初始值
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T4T3M |= 0x80; //定时器4开始计时
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}
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#else ///MainFre_11M
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////#warn
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void L0_timer0_Init(void)
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{
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U16 val = D_TIMER_COUNT(12,D_sys_MainFre,D_sys_Jiffies * 1000);
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AUXR &= 0x7F; //定时器时钟12T模式
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TMOD &= 0xF0; //设置定时器模式
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//TL0 = 0x00; //设置定时初值
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//TH0 = 0x4C; //设置定时初值
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TL0 = val; //设置定时初值
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TH0 = val >> 8; //设置定时初值
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TF0 = 0; //清除TF0标志
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TR0 = 1; //定时器0开始计时
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}
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#endif//D_sys_MainFre)
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#if 0
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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_10ms ++;//D_led_D1_REV(); 20160522 验证
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#endif
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//10---87 10s
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/********************** Timer0中断函数************************/
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/// 和 L0_timer0_Init 关联,需要配置 bsp_config.h中的 D_sys_MainFre
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/// 默认10ms 作为TTSS系统的定时引擎
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void timer0_isrHandle (void) D_SERVE_TIMER0
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{//
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NOP(); NOP(); NOP();
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TF0 = 0;
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L1_task_tick_callback(); ///系统中的1sflag 和以10ms为颗粒的延时使用 为tdelay服务
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/// BITN_1(DR_who_wakeup, DRB_who_wakeup_timer0);
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NOP(); NOP(); NOP();
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}
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void L1_timer0_Init(void)
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{
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///step1:时钟
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///step2:模块使能
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///step3:启动
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///step4:模块中断使能
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///step5:全局中断使能
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L0_timer0_Init();
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ET0 = 1;///经常因为替换L0_timer0_Init（由stcisp例程生成） 改指令漏掉
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}
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