hi members... i have a question today. i'm working with the sdcc cross compiler and metabolize c in assembler. i want to delay some programms but i can't use the function sleep or wait in sdcc. i have realized the delay with grinds at the moment but its very inexactly. sorry for the bad spelling i'm a german schoolboy i can't it superiorly. yours sincerely nick
i have solved the problem alone... i have write the folowing timer function (delay of one second): void timer(void) { #define TF0_VECTOR 1 int R7=20; TR0=0; TF0=0; TMOD=TMOD | 0xF0; //Timer 0,16 bit Timer TMOD=TMOD & 0x01; TL0=0xAF; //Timer 0, set 1 second TH0=0x3C; TR0=1; //start timer while(R7!=0) { if(TF0!=0) //test if the timer overflow { TR0=0; //stop timer TF0=0; //clear the overflow flag R7--; TR0=1; } } } Thank's for you help yours sincerely nick