lv.zip_project

#include<reg51f.h> //----------------------------------------------------- #define TOCDO CCAP4H //XUAT PWM RA P1.7 #define CHIEU CEX3 //XUAT ON-OFF RA P1.6 >0 la di toi <0 la di nguoc lai //Ham khoi tao cac chuc nang cua mCU void init(void) { CCAPM4 = 0x42; CR=1; CCAP4H = 0; TMOD=0x50; SCON=0x20; TH1=-13; TR=0; TI=0; } /**************************************************/ //Delay void delay(unsigned int count) { while(count) { count--; } } void speed(signed int tdo) { if (tdo>=0) { CHIEU=1; TOCDO= (255-tdo); } else { CHIEU=0; TOCDO= (255+tdo); } } char get_data() { char geti; while(RI!=1); geti=SBUF; RI=0; return geti; } void main() { int i=0; init(); while (1) { i=geti(); speed(i); delay(10000); } /* { P0=0xff; delay(10000); P0=0x00; delay(10000); } */ }