- The coding must add
else if (data_in == 1) => for switch 2
Coding for 2 SWITCH
Module LCD_TEST (
// Host Side
input
iCLK,iRST_N,
input data_in,
// LCD Side
output [7:0] LCD_DATA,
output
LCD_RW,LCD_EN,LCD_RS,
output reg
LCD_ON,LCD_BLON
);
// Internal
Wires/Registers
reg [5:0] LUT_INDEX;
reg [8:0] LUT_DATA;
reg [5:0] mLCD_ST;
reg [17:0] mDLY;
reg mLCD_Start;
reg [7:0] mLCD_DATA;
reg mLCD_RS;
wire mLCD_Done;
parameter LCD_INTIAL = 0;
parameter LCD_LINE1 = 5;
parameter LCD_CH_LINE = LCD_LINE1+16;
parameter LCD_LINE2 = LCD_LINE1+16+1;
parameter LUT_SIZE = LCD_LINE1+32+1;
initial
begin
LCD_ON=1;
LCD_BLON=1;
end
always@(posedge iCLK or negedge iRST_N)
begin
if(!iRST_N)
begin
LUT_INDEX <= 0;
mLCD_ST <= 0;
mDLY <= 0;
mLCD_Start <= 0;
mLCD_DATA <= 0;
mLCD_RS <= 0;
end
else
begin
if(LUT_INDEX<LUT_SIZE)
begin
case(mLCD_ST)
0: begin
mLCD_DATA <= LUT_DATA[7:0];
mLCD_RS <= LUT_DATA[8];
mLCD_Start <= 1;
mLCD_ST <= 1;
end
1: begin
if(mLCD_Done)
begin
mLCD_Start <= 0;
mLCD_ST <= 2;
end
end
2: begin
if(mDLY<18'h3FFFE)
mDLY <= mDLY
+ 1'b1;
else
begin
mDLY <= 0;
mLCD_ST <= 3;
end
end
3: begin
LUT_INDEX <= LUT_INDEX
+ 1'b1;
mLCD_ST <= 0;
end
endcase
end
end
end
always
if (data_in == 0)
begin
case(LUT_INDEX)
// Initial
LCD_INTIAL+0: LUT_DATA <= 9'h038;
LCD_INTIAL+1: LUT_DATA <= 9'h00C;
LCD_INTIAL+2: LUT_DATA <= 9'h001;
LCD_INTIAL+3: LUT_DATA <= 9'h006;
LCD_INTIAL+4: LUT_DATA <= 9'h080;
// Line 1
LCD_LINE1+0: LUT_DATA <= 9'h141; // <Altera
DE2 Kit>
LCD_LINE1+1: LUT_DATA <= 9'h149;
LCD_LINE1+2: LUT_DATA <= 9'h14E;
LCD_LINE1+3: LUT_DATA <= 9'h149;
/*LCD_LINE1+4: LUT_DATA <= 9'h149;
LCD_LINE1+5: LUT_DATA <= 9'h14E;
LCD_LINE1+6: LUT_DATA <= 9'h147;
/*LCD_LINE1+7: LUT_DATA <= 9'h144;
LCD_LINE1+8: LUT_DATA <= 9'h145;
LCD_LINE1+9: LUT_DATA <= 9'h132;
LCD_LINE1+10: LUT_DATA <= 9'h120;
LCD_LINE1+11: LUT_DATA <= 9'h142;
LCD_LINE1+12: LUT_DATA <= 9'h16F;
LCD_LINE1+13: LUT_DATA <= 9'h161;
LCD_LINE1+14: LUT_DATA <= 9'h172;
LCD_LINE1+15: LUT_DATA <= 9'h164;*/
// Change Line
LCD_CH_LINE: LUT_DATA <= 9'h0C0;
// Line 2
/*LCD_LINE2+0: LUT_DATA <= 9'h14E; // Nice To See You!
LCD_LINE2+1: LUT_DATA <= 9'h169;
LCD_LINE2+2: LUT_DATA <= 9'h163;
LCD_LINE2+3: LUT_DATA <= 9'h165;
LCD_LINE2+4: LUT_DATA <= 9'h120;
LCD_LINE2+5: LUT_DATA <= 9'h154;
LCD_LINE2+6: LUT_DATA <= 9'h16F;
LCD_LINE2+7: LUT_DATA <= 9'h120;
LCD_LINE2+8: LUT_DATA <= 9'h153;
LCD_LINE2+9: LUT_DATA <= 9'h165;
LCD_LINE2+10: LUT_DATA <= 9'h165;
LCD_LINE2+11: LUT_DATA <= 9'h120;
LCD_LINE2+12: LUT_DATA <= 9'h159;
LCD_LINE2+13: LUT_DATA <= 9'h16F;
LCD_LINE2+14: LUT_DATA <= 9'h175;
LCD_LINE2+15: LUT_DATA <= 9'h121;*/
default: LUT_DATA <= 9'dx
;
endcase
end
else if (data_in == 1)
begin
case(LUT_INDEX)
// Initial
LCD_INTIAL+0: LUT_DATA <= 9'h038;
LCD_INTIAL+1: LUT_DATA <= 9'h00C;
LCD_INTIAL+2: LUT_DATA <= 9'h001;
LCD_INTIAL+3: LUT_DATA <= 9'h006;
LCD_INTIAL+4: LUT_DATA <= 9'h080;
// Line 1
LCD_LINE1+0: LUT_DATA <= 9'h14B; // <Altera
DE2 Kit>
LCD_LINE1+1: LUT_DATA <= 9'h149;
LCD_LINE1+2: LUT_DATA <= 9'h145;
LCD_LINE1+3: LUT_DATA <= 9'h152;
LCD_LINE1+4: LUT_DATA <= 9'h141;
/*LCD_LINE1+5: LUT_DATA <= 9'h14E;
LCD_LINE1+6: LUT_DATA <= 9'h147;
/*LCD_LINE1+7: LUT_DATA <= 9'h144;
LCD_LINE1+8: LUT_DATA <= 9'h145;
LCD_LINE1+9: LUT_DATA <= 9'h132;
LCD_LINE1+10: LUT_DATA <= 9'h120;
LCD_LINE1+11: LUT_DATA <= 9'h142;
LCD_LINE1+12: LUT_DATA <= 9'h16F;
LCD_LINE1+13: LUT_DATA <= 9'h161;
LCD_LINE1+14: LUT_DATA <= 9'h172;
LCD_LINE1+15: LUT_DATA <= 9'h164;*/
// Change Line
LCD_CH_LINE: LUT_DATA <= 9'h0C0;
// Line 2
/*LCD_LINE2+0: LUT_DATA <= 9'h14E; // Nice To See You!
LCD_LINE2+1: LUT_DATA <= 9'h169;
LCD_LINE2+2: LUT_DATA <= 9'h163;
LCD_LINE2+3: LUT_DATA <= 9'h165;
LCD_LINE2+4: LUT_DATA <= 9'h120;
LCD_LINE2+5: LUT_DATA <= 9'h154;
LCD_LINE2+6: LUT_DATA <= 9'h16F;
LCD_LINE2+7: LUT_DATA <= 9'h120;
LCD_LINE2+8: LUT_DATA <= 9'h153;
LCD_LINE2+9: LUT_DATA <= 9'h165;
LCD_LINE2+10: LUT_DATA <= 9'h165;
LCD_LINE2+11: LUT_DATA <= 9'h120;
LCD_LINE2+12: LUT_DATA <= 9'h159;
LCD_LINE2+13: LUT_DATA <= 9'h16F;
LCD_LINE2+14: LUT_DATA <= 9'h175;
LCD_LINE2+15: LUT_DATA <= 9'h121;*/
default: LUT_DATA <= 9'dx
;
endcase
end
LCD_Controller u0(
// Host Side
.iDATA(mLCD_DATA),
.iRS(mLCD_RS),
.iStart(mLCD_Start),
.oDone(mLCD_Done),
.iCLK(iCLK),
.iRST_N(iRST_N),
// LCD Interface
.LCD_DATA(LCD_DATA),
.LCD_RW(LCD_RW),
.LCD_EN(LCD_EN),
.LCD_RS(LCD_RS)
);
Figure 2: Pin assignments for the toggle switches.
Table 1: Pin assignments for LCD coding
Figure 3: Show the coding have no error successful
Figure 5: RTL View
OUTPUT
Switch 1 for display AINI
Figure 6 : Output LCD display AINI
Switch 2 for display KIERA
Figure 7 : Output LCD display KIERA
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