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Showing results for tags '20x4 lcd'.
Hy, guys, I am using the PmodCLS, and although it is retired now (October 2018), my project is ongoing with 4 of them, using an adapted VHDL demo code from resource center. I am in need of using one 20x4 LCD module instead of the 16x2 I have there. As a first innocent try, I just connected in parallel the 20x4 pins with the 16x2 pins. The 16x2 continue to work, but the 20x4 shows only squares...(contrast and backlight connections are ok). In the demo lookup file it does not seems to have a configuration command for the LCD. Is PmodCLS automatically configured for 16x2?