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the problem i ask yesterday hv solved, the now i'm facing another prob. which is the velocity value cant display in LCD once i reach "START==0 AND STOP==0" it will display 255 for the velocity value, could anyone help me with that, thanks alot
#include <AT898252.H> #include <stdio.h> #include "LCD.c" unsigned char pulse_low=0,pulse_high=0; unsigned int overflow_count=0,int_count=1,pulse=0,time=0; unsigned int velocity=0; unsigned long int pulse_width=0; unsigned char b; sbit START=P1^0; sbit STOP=P1^1; char buf[16]; void main(){ lcd_init(); lcd_puts("The Speed Is"); msdelay(1000); TMOD=0x90; TF1=0; IT1=1; IE=0x8c; while(1){ unsigned char a; // unsigned char x; if(START==0&&STOP==1){ a=0; } else if(START==1&&STOP==0){ a=2; } else if(START==1&&STOP==1){ a=3; } else if (START==0&&STOP==0){ a=1; } switch(a){ case 0:{ TR1=1; break; } case 1:{ pulse_low=TL1; pulse_high=TH1; pulse=(TH1<<8)+TL1; pulse_width=(overflow_count)*65536+pulse; time=pulse_width/13921583; velocity=(180/time); lcd_gotoxy(0,1); lcd_putchar(' '); sprintf(buf,"%u",v); lcd_puts(buf); break; } case 2:{ TR1=0; TH1=0x00; TL1=0x00; overflow_count=0; break; } default:{ break; } } } } void timer1_int()interrupt 3 { overflow_count++; }
So what was the point in posting code that isn't even the one with the problem?
How is anyone supposed to be able to help you if you post the wrong code?!
this is the the actual coding
#include <AT898252.H> #include <stdio.h> #include "LCD.c" unsigned char pulse_low=0,pulse_high=0; unsigned int overflow_count=0,int_count=1,pulse=0,time=0; unsigned int velocity=0; unsigned long int pulse_width=0; unsigned char b; sbit START=P1^0; sbit STOP=P1^1; char buf[16]; void main(){ lcd_init(); lcd_puts("The Speed Is"); msdelay(1000); TMOD=0x90; TF1=0; IT1=1; IE=0x8c; while(1){ unsigned char a; // unsigned char x; if(START==0&&STOP==1){ a=0; } else if(START==1&&STOP==0){ a=2; } else if(START==1&&STOP==1){ a=3; } else if (START==0&&STOP==0){ a=1; } switch(a){ case 0:{ TR1=1; break; } case 1:{ pulse_low=TL1; pulse_high=TH1; pulse=(TH1<<8)+TL1; pulse_width=(overflow_count)*65536+pulse; time=pulse_width/13921583; velocity=(180/time); lcd_gotoxy(0,1); lcd_putchar(' '); sprintf(buf,"%u",velocity); lcd_puts(buf); break; } case 2:{ TR1=0; TH1=0x00; TL1=0x00; overflow_count=0; break; } default:{ break; } } } } void timer1_int()interrupt 3 { overflow_count++; }
You are insulting code by naming your scribbles so.
Of course, if your attitude is that those willing to help you for free can just spend their time figuring it out, after all it is not your valuable time, then you can hope that some sucker will help you.
Erik
As suggested earlier, "Providing clear, descriptive comments would help you as much as anyone else!"