Nicholas Hahn
Fork of
KS0108
by 
Ryan Tseng
Diff: KS0108.cpp
- Revision:
- 1:741ceb02f8e2
- Parent:
- 0:14a7c22dfbe8
--- a/KS0108.cpp Mon Jun 18 16:46:41 2012 +0000
+++ b/KS0108.cpp Mon Apr 14 18:30:31 2014 +0000
@@ -12,7 +12,6 @@
E.write(0);
ClearScreen(); //clear display
WriteInstruction(LCD_ON, BOTH); //turn on lcd
- Inverted = 0;
}
@@ -49,76 +48,66 @@
}
void KS0108::WriteData(unsigned int data) {
- unsigned int displayData, yOffset, chip;
+ unsigned int displayData = 0, yOffset, chip;
- if(Coord.x >= SCREEN_WIDTH)
- return;
- chip = Coord.x/CHIP_WIDTH;
- wait(0.000000450); // 300ns
+ //wait(0.000000450); // 300ns
+ if(Coord.x % CHIP_WIDTH == 0 && chip > 0){
+ GotoXY(Coord.x, Coord.y);
+ }
- if(Coord.x % CHIP_WIDTH == 0 && chip > 0){
- GotoXY(Coord.x, Coord.y);
- }
-
- DI.write(1); // D/I = 1
- RW.write(0); // R/W = 0
- DB.output(); // data port is output
-
yOffset = Coord.y%8;
if(yOffset != 0) { // first page
- displayData = ReadData();
+ GotoXY(Coord.x, Coord.y);
+ displayData = ReadData();
+ displayData = ReadData();
+ GotoXY(Coord.x, Coord.y);
+
+ DI.write(1); // D/I = 1
+ RW.write(0); // R/W = 0
+ DB.output();
+ // data port is output
+ displayData |= (data << yOffset) & 0xff;
+ DB.write(displayData); // write data
+ wait(0.0000003); // 300ns
+ E.write(1);
+ wait(0.0000001);
+ E.write(0);
- DI.write(1); // D/I = 1
- RW.write(0); // R/W = 0
- SelectSide(chip);
- DB.output();
- // data port is output
- displayData |= data << yOffset;
- if(Inverted) displayData = ~displayData;
- DB.write(displayData); // write data
- wait(0.0000003); // 300ns
- E.write(1);
- wait(0.0000001);
- E.write(0);
-
- // second page
- GotoXY(Coord.x, Coord.y+8);
+ // second page
+ GotoXY(Coord.x, Coord.y+8);
+ displayData = ReadData();
+ displayData = ReadData();
+ GotoXY(Coord.x, Coord.y);
+
+ DI.write(1); // D/I = 1
+ RW.write(0); // R/W = 0
+ DB.output(); // data port is output
+
+ displayData |= data >> (8-yOffset);
+
+ DB.write(displayData); // write data
- displayData = ReadData();
-
- DI.write(1); // D/I = 1
- RW.write(0); // R/W = 0
- SelectSide(chip);
+ wait(0.0000003); // 300ns
+ E.write(1);
+ wait(0.0000001);
+ E.write(0);
- DB.output(); // data port is output
-
- displayData |= data >> (8-yOffset);
-
- if(Inverted)
- displayData = ~displayData;
- DB.write(displayData); // write data
-
- wait(0.0000003); // 300ns
- E.write(1);
- wait(0.0000001);
- E.write(0);
-
GotoXY(Coord.x+1, Coord.y-8);
}else {
+ DI.write(1); // D/I = 1
+ RW.write(0); // R/W = 0
+ DB.output(); // data port is output
- // just this code gets executed if the write is on a single page
- if(Inverted)
- data = ~data;
- wait(0.0000003); // 300nsEN_DELAY();
DB.write(data); // write data
wait(0.0000003); // 300ns
- E = 1;
- wait(0.0000001);
- E = 0;
+ E.write(1);
+ wait(0.0000001);
+ E.write(0);
Coord.x++;
}
+ return;
}
@@ -129,40 +118,39 @@
page = page%8;
if(col<(SCREEN_WIDTH/2)){
- SelectSide(LEFT);
- WriteInstruction(LCD_SET_PAGE|page,LEFT);
- WriteInstruction(LCD_SET_ADD|col,LEFT); //set page and column position
- WriteData(data,LEFT); //output data to D0-D7
+ SelectSide(LEFT);
+ WriteInstruction(LCD_SET_PAGE|page,LEFT);
+ WriteInstruction(LCD_SET_ADD|col,LEFT); //set page and column position
+ WriteData(data,LEFT); //output data to D0-D7
}else{
-
- SelectSide(RIGHT);
- col -= (SCREEN_WIDTH/2);
- WriteInstruction(LCD_SET_PAGE|page,RIGHT);
- WriteInstruction(LCD_SET_ADD|col,RIGHT); //set page and column position
- WriteData(data,RIGHT); //output data to D0-D7
+ SelectSide(RIGHT);
+ col -= (SCREEN_WIDTH/2);
+ WriteInstruction(LCD_SET_PAGE|page,RIGHT);
+ WriteInstruction(LCD_SET_ADD|col,RIGHT); //set page and column position
+ WriteData(data,RIGHT); //output data to D0-D7
}
-
+
SelectSide(NONE);
}
unsigned int KS0108::ReadData(){
- unsigned int data;
- DB.input();
+ unsigned int data = 0;
+ DB.input();
- DI.write(1);
- RW.write(1);
+ DI.write(1);
+ RW.write(1);
- E.write(1);
- wait(0.00000045);
-
- data = DB.read();
- wait(0.0000001);
- E.write(0);
- DB.output();
-
- return data;
+ E.write(1);
+ wait(0.00000045);
+
+ data = DB.read();
+ E.write(0);
+ wait(0.0000001);
+ DB.output();
+
+ return data;
}
unsigned int KS0108::ReadStatus(){
@@ -204,6 +192,7 @@
WriteDataColPag(page,col,WHITE);
}
}
+ GotoXY(Coord.x, Coord.y);
}
@@ -264,15 +253,6 @@
SetPixel(i,j,color);
}
}
-}
-
-void KS0108::ReverseFullRectangle(unsigned int Xaxis1, unsigned int Yaxis1, unsigned int Xaxis2 ,unsigned int Yaxis2,unsigned int color){
-
- for(unsigned int i=Xaxis2;i<=Xaxis1;i--){
- for(unsigned int j=Yaxis2;j<=Yaxis1;j--){
- SetPixel(i,j,color);
- }
- }
}
@@ -686,23 +666,20 @@
void KS0108::GotoXY(unsigned int x, unsigned int y) {
unsigned int chip, cmd;
- if( (x > SCREEN_WIDTH-1) || (y > SCREEN_HEIGHT-1) ) // exit if coordinates are not legal
- return;
- Coord.x = x; // save new coordinates
- Coord.y = y;
-
- if(y/8 != Coord.page) {
- Coord.page = y/8;
- cmd = LCD_SET_PAGE | Coord.page; // set y address on all chips
+ Coord.x = x%SCREEN_WIDTH; // save new coordinates
+ Coord.y = y%SCREEN_HEIGHT;
+
+ Coord.page = y/8;
+ cmd = LCD_SET_PAGE | Coord.page; // set y address on all chips
for(chip=0; chip < 2; chip++){
- WriteInstruction(cmd, chip);
+ WriteInstruction(cmd, chip);
}
- }
- chip = Coord.x/64;
- x = x % 64;
- cmd = LCD_SET_ADD | x;
- WriteInstruction(cmd, chip); // set x address on active chip
+ chip = Coord.x/64;
+ x = x % 64;
+ cmd = LCD_SET_ADD | x;
+ WriteInstruction(cmd, chip); // set x address on active chip
+ return;
}
@@ -796,8 +773,7 @@
}
// 1px gap between chars
WriteData(0x00);
- GotoXY(x,Coord.y+8);
-
+ GotoXY(x,Coord.y+8);
}
GotoXY(x+width+1, y);
@@ -837,7 +813,3 @@
}
-
-
-
-