Hi iliya24,
Some question on your schematic first-
1) r u planning to generate 800 ms clock using IC555 or signals S1 or S2 ?
2) what is this slop signal ?
3) dose s1 and s2 signal are need to be periodically generated ?
4) did the signal width of s1 and s2 is 200 ms and what about the blue line is it a separate signal get pulsed in between two clock pulses ?
5) Dose it is necessary to use only 555 timer or any other things are ok for you?
Please answer these questions/queries for further discussion...
with regards,
milind