Honored ContributorLCD display program
I use Altera De2 Board Cyclone II and quartus program. I have manage to build code for display word at LCD when SW0 is toggle. The problem is how to combine another file to add another condition when SW1 is toggle new word come out. here my lcd_test.v
note iCLK is 25_CLOCK, iRST_N is SW0
First SW0 toggle display HUMIDITY MONITORING
module LCD_TEST (
// Host Side
input iCLK,iRST_N,
// 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
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'h148; // <HUMIDITY>
LCD_LINE1+1: LUT_DATA <= 9'h155;
LCD_LINE1+2: LUT_DATA <= 9'h14D;
LCD_LINE1+3: LUT_DATA <= 9'h149;
LCD_LINE1+4: LUT_DATA <= 9'h144;
LCD_LINE1+5: LUT_DATA <= 9'h149;
LCD_LINE1+6: LUT_DATA <= 9'h154;
LCD_LINE1+7: LUT_DATA <= 9'h159;
LCD_LINE1+8: LUT_DATA <= 9'h120;
LCD_LINE1+9: LUT_DATA <= 9'h120;
LCD_LINE1+10: LUT_DATA <= 9'h120;
LCD_LINE1+11: LUT_DATA <= 9'h120;
LCD_LINE1+12: LUT_DATA <= 9'h120;
LCD_LINE1+13: LUT_DATA <= 9'h120;
LCD_LINE1+14: LUT_DATA <= 9'h120;
LCD_LINE1+15: LUT_DATA <= 9'h120;
// Change Line
LCD_CH_LINE: LUT_DATA <= 9'h0C0;
// Line 2
LCD_LINE2+0: LUT_DATA <= 9'h14D; // <MONITORING>
LCD_LINE2+1: LUT_DATA <= 9'h14F;
LCD_LINE2+2: LUT_DATA <= 9'h14E;
LCD_LINE2+3: LUT_DATA <= 9'h149;
LCD_LINE2+4: LUT_DATA <= 9'h154;
LCD_LINE2+5: LUT_DATA <= 9'h14F;
LCD_LINE2+6: LUT_DATA <= 9'h152;
LCD_LINE2+7: LUT_DATA <= 9'h149;
LCD_LINE2+8: LUT_DATA <= 9'h14E;
LCD_LINE2+9: LUT_DATA <= 9'h147;
LCD_LINE2+10: LUT_DATA <= 9'h120;
LCD_LINE2+11: LUT_DATA <= 9'h120;
LCD_LINE2+12: LUT_DATA <= 9'h120;
LCD_LINE2+13: LUT_DATA <= 9'h120;
LCD_LINE2+14: LUT_DATA <= 9'h120;
LCD_LINE2+15: LUT_DATA <= 9'h120;
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) );
endmodule
here is my second condition display RAIN MONITORING
module LCD_TEST (
// Host Side
input iCLK,iRST_N,
// 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
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'h152; // <RAIN>
LCD_LINE1+1: LUT_DATA <= 9'h141;
LCD_LINE1+2: LUT_DATA <= 9'h149;
LCD_LINE1+3: LUT_DATA <= 9'h14E;
LCD_LINE1+4: LUT_DATA <= 9'h120;
LCD_LINE1+5: LUT_DATA <= 9'h120;
LCD_LINE1+6: LUT_DATA <= 9'h120;
LCD_LINE1+7: LUT_DATA <= 9'h120;
LCD_LINE1+8: LUT_DATA <= 9'h120;
LCD_LINE1+9: LUT_DATA <= 9'h120;
LCD_LINE1+10: LUT_DATA <= 9'h120;
LCD_LINE1+11: LUT_DATA <= 9'h120;
LCD_LINE1+12: LUT_DATA <= 9'h120;
LCD_LINE1+13: LUT_DATA <= 9'h120;
LCD_LINE1+14: LUT_DATA <= 9'h120;
LCD_LINE1+15: LUT_DATA <= 9'h120;
// Change Line
LCD_CH_LINE: LUT_DATA <= 9'h0C0;
// Line 2
LCD_LINE2+0: LUT_DATA <= 9'h14D; // <MONITORING>
LCD_LINE2+1: LUT_DATA <= 9'h14F;
LCD_LINE2+2: LUT_DATA <= 9'h14E;
LCD_LINE2+3: LUT_DATA <= 9'h149;
LCD_LINE2+4: LUT_DATA <= 9'h154;
LCD_LINE2+5: LUT_DATA <= 9'h14F;
LCD_LINE2+6: LUT_DATA <= 9'h152;
LCD_LINE2+7: LUT_DATA <= 9'h149;
LCD_LINE2+8: LUT_DATA <= 9'h14E;
LCD_LINE2+9: LUT_DATA <= 9'h147;
LCD_LINE2+10: LUT_DATA <= 9'h120;
LCD_LINE2+11: LUT_DATA <= 9'h120;
LCD_LINE2+12: LUT_DATA <= 9'h120;
LCD_LINE2+13: LUT_DATA <= 9'h120;
LCD_LINE2+14: LUT_DATA <= 9'h120;
LCD_LINE2+15: LUT_DATA <= 9'h120;
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) );
endmodule
