Altera DE2-115 Guida Utente Scaricare il pdf (Pagina 39)

SFSU - Embedded Systems Tutorial Nano- Electronics & Computing Research Lab

To display characters to an LCD there is a series of steps that need to be done before to

initializing the LCD module. Since Verilog doesn’t read code sequentially we created a case

statement that will allow the initialization to be done in order. This is done by changing the state

of the case to the next step in every case statement. The steps performed are RESET1, RESET2,

RESET3, FUNCTION SET, DISPLAY OFF, DISPLAY CLEAR, RETURN HOME, CHANGE

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Altera DE2-115 Guida Utente Pagina 39