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问 TMOD = (TMOD & 0xCF) | 0x10;                                          // 工作在16位定时状态
AUXR = AUXR | 0x40;                                                   // 1T状态
TL1  = TIMER1_DL_DELAY_26_3US;                                        // 装载定时器1数据
TH1  = TIMER1_DH_DELAY_26_3US;                                        // 装载定时器1数据
IP   = IP  | 0x08;                                                    // 中断优先级最高
IPH  = IPH | 0x08;
ET1  = 1;                                                             // 开定时器1中断
TF1  = 0;                                                             // 清除中断标志
TR1  = 1;                                                             // 启动定时器1



TMOD = (TMOD & 0xCF) | 0x10;                                          // 工作在16位定时状态
//AUXR = AUXR | 0x40;                                                   // 1T状态
TL1  = TIMER1_DL_DELAY_26_3US;                                        // 装载定时器1数据
TH1  = TIMER1_DH_DELAY_26_3US;                                        // 装载定时器1数据
IP   = IP  | 0x08;                                                    // 中断优先级最高
IPH  = IPH | 0x08;
ET1  = 1;                                                             // 开定时器1中断
TF1  = 0;                                                             // 清除中断标志
TR1  = 1;                                                             // 启动定时器1


如上输出的是的波形都是一样的周期？为什么定时器无法进入1T状态？
我用的是4052AD 答 1: 怎么没有人理我啊？12T的输出的波形分辩率不高，所以才想用1T的提高分辩率 答 2: re技术支持怎么这么差？ 答 3: sfr AUXR = 0x8e;sfr AUXR = 0x8e; 答 4: 做个实验或者给个程序运行一下，手册上没有程序只有说明头文件定义
sfr AUXR     = 0xBE;

C文件
TMOD = (TMOD & 0xCF) | 0x10;                                          // 工作在16位定时状态
AUXR = AUXR | 0x40;                                                   // 1T状态
TL1  = TIMER1_DL_DELAY_26_3US;                                        // 装载定时器1数据
TH1  = TIMER1_DH_DELAY_26_3US;                                        // 装载定时器1数据
IP   = IP  | 0x08;                                                    // 中断优先级最高
IPH  = IPH | 0x08;
ET1  = 1;                                                             // 开定时器1中断
TF1  = 0;                                                             // 清除中断标志
TR1  = 1;                                                             // 启动定时器1



TMOD = (TMOD & 0xCF) | 0x10;                                          // 工作在16位定时状态
//AUXR = AUXR | 0x40;                                                   // 1T状态
TL1  = TIMER1_DL_DELAY_26_3US;                                        // 装载定时器1数据
TH1  = TIMER1_DH_DELAY_26_3US;                                        // 装载定时器1数据
IP   = IP  | 0x08;                                                    // 中断优先级最高
IPH  = IPH | 0x08;
ET1  = 1;                                                             // 开定时器1中断
TF1  = 0;                                                             // 清除中断标志
TR1  = 1;                                                             // 启动定时器1


void TIMER1_ISP() interrupt 3
{
    TF1 = 0;
         P3.7 = ~P3.7 //表示输出一个波形

TL1  = TIMER1_DL_DELAY_26_3US;                                        // 装载定时器1数据
TH1  = TIMER1_DH_DELAY_26_3US;                                        // 装载定时器1数据
TR1  = 1;                                                             // 启动定时器1

}



二种情况下波形不变化 答 5: 八，不是b0x8E   0Xbe
呵呵 答 6: ===ups兄 讲的对ups 发表于 2006-8-5 00:20 STC 8051 ←返回版面    

八，不是b

0x8E   0Xbe
呵呵

===ups兄 讲的对