STC8文档中的比较器例程 和 ISP软件里的例程打架,哪个对?
想用STC8的比较器功能,STC8文档里的例程复制不了,就在ISP软件里复制了相关例程。比较一下:
ISP软件里复制了相关例程:
CMPCR2 = 0x00;
CMPCR2 &= ~0x80; //比较器正向输出
//CMPCR2 |= 0x80; //比较器反向输出
CMPCR2 &= ~0x40; //禁止0.1us滤波
//CMPCR2 |= 0x40; //使能0.1us滤波
//CMPCR2 &= ~0x3f; //比较器结果直接输出
CMPCR2 |= 0x10; //比较器结果经过16个去抖时钟后输出
CMPCR1 = 0x00;
CMPCR1 |= 0x30; //使能比较器边沿中断
//CMPCR1 &= ~0x20; //禁止比较器上升沿中断
//CMPCR1 |= 0x20; //使能比较器上升沿中断
//CMPCR1 &= ~0x10; //禁止比较器下降沿中断
//CMPCR1 |= 0x10; //使能比较器下降沿中断
CMPCR1 &= ~0x08; //P3.6为CMP+输入脚
//CMPCR1 |= 0x08; //ADC输入脚为CMP+输入教
//CMPCR1 &= ~0x04; //内部参考电压为CMP-输入脚
CMPCR1 |= 0x04; //P3.7为CMP-输入脚
//CMPCR1 &= ~0x02; //禁止比较器输出
CMPCR1 |= 0x02; //使能比较器输出
CMPCR1 |= 0x80; //使能比较器模块
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