//==timer4 define=====
#define TIM4_DIV1 0X00
#define TIM4_DIV8 0X01
#define TIM4_DIV64 0X02
#define TIM4_DIV256 0X03
#define Timer4_Cnt_Enb Bank1;T4CON |= (1<<1) //允许计数
#define Timer4_Cnt_Dis Bank1;T4CON &= ~(1<<1)
#define Timer4_IEN_Enb Bank0;IEN1 |= (1<<1) //中断使能
#define Timer4_IEN_Dis Bank0;IEN1 &= ~(1<<1)
#define TIMER4_ENB 1
#define TIMER4_DIS 0
void Init_Timer4(uint16 Tcon,uint8 Pscr)
{
Bank1;
T4CON = 0X00 ;
T4CON |= (Pscr<<4) ;
TL4 = (65536-Tcon)%256 ;
TH4 = (65536-Tcon)/256 ;//初始化计数器值
SWTHL &= ~(1<<1) ; //读TH4 TL4时返回 它的计数值
Bank0;
}
void Timer4_Enb(uint8 EN)
{
if(EN == TIMER4_ENB)
{
Bank1;
T4CON |= (1<<1) ; //开T4计数
Bank0;
IEN1 |= (1<<6) ; //开T4中断
}
else
{
Bank1;
T4CON &= ~(1<<1) ;
Bank0;
IEN1 &= ~(1<<6) ;
}
}
//系统时钟12M 定时100us 的中断
Init_Timer4(1200,TIM4_DIV1);
Timer4_Enb(TIMER4_ENB);
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版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
原文链接：https://blog.csdn.net/chuangwu2009/article/details/29591691
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