Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Fmax Improvment

I'm trying to improve Fmax in our design. See the archived quartus II proejct file in the attachment. The source files are also attached. In my currrent design, after compilation, Fmax can reach ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

--- Quote Start ---

What this code shows is how verbose it can become when you start using innapropriate types.

Why is setting_pixel not an unsigned already?

instead of shift_right function, why not do /2^n? so a 1 bit shift is /2, 2 = /2 etc.

so instead of the massive long lines you already have, you could just use: 


    elsif Setting_Pixel < ( Setting_TotPixel/2 + Setting_TotPixel/8 ) then

--- Quote End ---

That's a good idea. Do you think "/" operation will lead to lower Fmax than "shift_right"?