RTX51Tiny-system-time-task.zip_51tiny_rtx51 切换时间_rtx51tiny_rtx51

//功能：时间轮转任务切换，流水灯与数码管扫描的多任务切换 //简述：TIMESHARING EQU 5 //设定在进行时间轮转的任务切换前需要消耗多少个RTX51 Tiny的内核时钟滴 //答数。如果这个值为0，那么将禁止进行时间轮转的任务切换，默认的设置是5 //INT_CLOCK EQU 10000 //定义定时器在产生中断前的时钟周期数，这个值的范围是1000 – 65535，小的数 //值将产生快速的中断，那么初始化和重装到定时器的值就是：（65536 – INT_CLOCK）。这个参数的默 //认值是 10000。（定时器中断的频率就看作是RTX51 Tiny内核时钟频率，也就是整个实时内核的时钟节拍） #include <reg52.h> #include <intrins.h> #include <rtx51tny.h> unsigned char table0[]={0xdf,0xef,0xf7,0xfb}; unsigned char table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; void init(void) _task_ 0 //任务0 { os_create_task(1); os_create_task(2); os_delete_task(0); } void smg(void) _task_ 1 //任务1 { unsigned int x = 5634,c = 0; unsigned char date[4]; unsigned char i,q,b,s,g; while(1) { q = x/1000; b = x%1000/100; s = x%100/10; g = x%10; date[0] = q; date[1] = b; date[2] = s; date[3] = g; for(i = 0;i < 4;i ++) { P2 = table0[i]; P0 = table[date[i]]; for(c = 100;c > 0;c--); } } } void led(void) _task_ 2 //任务2 { unsigned char temp; temp = 0x7f; P1 = temp; while(1) { os_wait2(K_TMO,250); temp = _crol_(temp,1); P1 = temp; } }