AT89C2051 program flowchart for ultrasonic depth meter

hi i am new to AT89C2051.can anyone help me with a flowchart for ultrasonic depth meter program in AT89C2051.

What do you have so far? You should have learned enough to start with a basic flow chart, if you can't do even that much (or post an atempt and ask for suggestions) then there's no hope you'll be able to code it.

thank u.but i have enough to start off with.thanks for the inspiration.