New ContributorAre there different Altera DE2-35 boards with the Cyclone II 2C35 FPGA device?
I have written in the university on a DE2-35 a program for controlling the LCD display and it works well.
But it does not work at home with my DE2-35 exactly the same board. The 7 segment display (Except HEX6) and the LEDs will work but the LCD display will not work.
The pin assignment fits. I checked it.
I think that this is not a defect, because the test program works, as well as everything with the control panel.
What can be the problem here? They are really the same boards, with the same FPGA Cyclone II EP2C35F672C6.
Can someone tell me what I'm doing wrong here?
On my Board the LCD turns on and only shows all dots in the top line. On the board in the university the entered text is printed correctly on both lines.
The default program on the DE2 cd show the text "Welcome to the DE2 Board" perfectly. With the Control Panel all dots are blinking.
I think that's ok, right?
I first thought that there is a mistake because the LEDs B and C are blown in the 7 segment display HEX6. And A only shines weakly. (How can something happen at all?)
But that has nothing to do with it, right?
I'm completely helpless because everything seems to fit.
