code u8 alarm_tab[200] =
{
210,210,210,210,210,210,219,219,219,219,
219,218,218,218,217,217,217,216,216,215,
215,215,214,214,213,213,212,211,211,210,
210,209,208,208,207,206,206,205,204,204,
203,202,201,201,200,199,198,198,197,196,
195,195,194,193,192,192,191,190,190,189,
188,187,187,186,185,185,184,183,183,182,
181,181,180,180,179,179,178,178,177,177,
176,176,176,175,175,174,174,174,174,173,
173,173,173,173,172,172,172,172,172,172,
172,172,172,172,172,172,173,173,173,173,
173,174,174,174,174,175,175,175,176,176,
177,177,178,178,179,179,180,180,181,181,
182,183,183,184,185,185,186,187,187,188,
189,189,190,191,192,192,193,194,195,195,
196,197,198,198,199,200,201,201,202,203,
204,204,205,206,206,207,208,208,209,210,
210,211,211,212,212,213,214,214,215,215,
215,216,216,217,217,217,218,218,218,219,
219,219,219,219,210,210,210,210,210,210
};
for (i = 0 ; i < 800; i++)
{
Delay_us(alarm_tab[i/4] - 18);
BEEP = !BEEP;
}
我用这个做警报声,也调了些时间,感觉效果还可以,延时自己调下改变音调 |