Hello. I have the the Pong Game code in Verilog with FPGA Xilinx Spartan Basys2. Everything works well, but I notice some flickering in the monitor, something like vibrations. What do you think? What is the problem? Maybe noisy clock? Thank you.
Guest
#4106455
In general, it's impossible to answer without your source code. But the Basys2 is well known in e.g. classic fpga computing for it's bad clock, more exactly, it's a jitty oscillator. This is often the source of pixel jittering. AFAIK the board has an 8-pin socket for an extra clock source.
Guest
#4111278
if there is a pll used, the clock should be fine. small clock problems usually lead only to bad pixels. if there is flickering, a bad constellation between hsynch and vsynch is given usually most probably also a unsynched updating process of the screen will be the problem to solve