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int pixels[85][6] = {
{
0 }
};
static const byte ASCII[][5] =
{
{
0x00, 0x00, 0x00, 0x00, 0x00 } // 20
,{
0x00, 0x00, 0x5f, 0x00, 0x00 } // 21 !
,{
0x00, 0x07, 0x00, 0x07, 0x00 } // 22 "
,{
0x14, 0x7f, 0x14, 0x7f, 0x14 } // 23 #
,{
0x24, 0x2a, 0x7f, 0x2a, 0x12 } // 24 $
,{
0x23, 0x13, 0x08, 0x64, 0x62 } // 25 %
,{
0x36, 0x49, 0x55, 0x22, 0x50 } // 26 &
,{
0x00, 0x05, 0x03, 0x00, 0x00 } // 27 '
,{
0x00, 0x1c, 0x22, 0x41, 0x00 } // 28 (
,{
0x00, 0x41, 0x22, 0x1c, 0x00 } // 29 )
,{
0x14, 0x08, 0x3e, 0x08, 0x14 } // 2a *
,{
0x08, 0x08, 0x3e, 0x08, 0x08 } // 2b +
,{
0x00, 0x50, 0x30, 0x00, 0x00 } // 2c ,
,{
0x08, 0x08, 0x08, 0x08, 0x08 } // 2d -
,{
0x00, 0x60, 0x60, 0x00, 0x00 } // 2e .
,{
0x20, 0x10, 0x08, 0x04, 0x02 } // 2f /
,{
0x3e, 0x51, 0x49, 0x45, 0x3e } // 30 0
,{
0x00, 0x42, 0x7f, 0x40, 0x00 } // 31 1
,{
0x42, 0x61, 0x51, 0x49, 0x46 } // 32 2
,{
0x21, 0x41, 0x45, 0x4b, 0x31 } // 33 3
,{
0x18, 0x14, 0x12, 0x7f, 0x10 } // 34 4
,{
0x27, 0x45, 0x45, 0x45, 0x39 } // 35 5
,{
0x3c, 0x4a, 0x49, 0x49, 0x30 } // 36 6
,{
0x01, 0x71, 0x09, 0x05, 0x03 } // 37 7
,{
0x36, 0x49, 0x49, 0x49, 0x36 } // 38 8
,{
0x06, 0x49, 0x49, 0x29, 0x1e } // 39 9
,{
0x00, 0x36, 0x36, 0x00, 0x00 } // 3a :
,{
0x00, 0x56, 0x36, 0x00, 0x00 } // 3b ;
,{
0x08, 0x14, 0x22, 0x41, 0x00 } // 3c <
,{
0x14, 0x14, 0x14, 0x14, 0x14 } // 3d =
,{
0x00, 0x41, 0x22, 0x14, 0x08 } // 3e >
,{
0x02, 0x01, 0x51, 0x09, 0x06 } // 3f ?
,{
0x32, 0x49, 0x79, 0x41, 0x3e } // 40 @
,{
0x7e, 0x11, 0x11, 0x11, 0x7e } // 41 A
,{
0x7f, 0x49, 0x49, 0x49, 0x36 } // 42 B
,{
0x3e, 0x41, 0x41, 0x41, 0x22 } // 43 C
,{
0x7f, 0x41, 0x41, 0x22, 0x1c } // 44 D
,{
0x7f, 0x49, 0x49, 0x49, 0x41 } // 45 E
,{
0x7f, 0x09, 0x09, 0x09, 0x01 } // 46 F
,{
0x3e, 0x41, 0x49, 0x49, 0x7a } // 47 G
,{
0x7f, 0x08, 0x08, 0x08, 0x7f } // 48 H
,{
0x00, 0x41, 0x7f, 0x41, 0x00 } // 49 I
,{
0x20, 0x40, 0x41, 0x3f, 0x01 } // 4a J
,{
0x7f, 0x08, 0x14, 0x22, 0x41 } // 4b K
,{
0x7f, 0x40, 0x40, 0x40, 0x40 } // 4c L
,{
0x7f, 0x02, 0x0c, 0x02, 0x7f } // 4d M
,{
0x7f, 0x04, 0x08, 0x10, 0x7f } // 4e N
,{
0x3e, 0x41, 0x41, 0x41, 0x3e } // 4f O
,{
0x7f, 0x09, 0x09, 0x09, 0x06 } // 50 P
,{
0x3e, 0x41, 0x51, 0x21, 0x5e } // 51 Q
,{
0x7f, 0x09, 0x19, 0x29, 0x46 } // 52 R
,{
0x46, 0x49, 0x49, 0x49, 0x31 } // 53 S
,{
0x01, 0x01, 0x7f, 0x01, 0x01 } // 54 T
,{
0x3f, 0x40, 0x40, 0x40, 0x3f } // 55 U
,{
0x1f, 0x20, 0x40, 0x20, 0x1f } // 56 V
,{
0x3f, 0x40, 0x38, 0x40, 0x3f } // 57 W
,{
0x63, 0x14, 0x08, 0x14, 0x63 } // 58 X
,{
0x07, 0x08, 0x70, 0x08, 0x07 } // 59 Y
,{
0x61, 0x51, 0x49, 0x45, 0x43 } // 5a Z
,{
0x00, 0x7f, 0x41, 0x41, 0x00 } // 5b [
,{
0x02, 0x04, 0x08, 0x10, 0x20 } // 5c ¥
,{
0x00, 0x41, 0x41, 0x7f, 0x00 } // 5d ]
,{
0x04, 0x02, 0x01, 0x02, 0x04 } // 5e ^
,{
0x40, 0x40, 0x40, 0x40, 0x40 } // 5f _
,{
0x00, 0x01, 0x02, 0x04, 0x00 } // 60 `
,{
0x20, 0x54, 0x54, 0x54, 0x78 } // 61 a
,{
0x7f, 0x48, 0x44, 0x44, 0x38 } // 62 b
,{
0x38, 0x44, 0x44, 0x44, 0x20 } // 63 c
,{
0x38, 0x44, 0x44, 0x48, 0x7f } // 64 d
,{
0x38, 0x54, 0x54, 0x54, 0x18 } // 65 e
,{
0x08, 0x7e, 0x09, 0x01, 0x02 } // 66 f
,{
0x0c, 0x52, 0x52, 0x52, 0x3e } // 67 g
,{
0x7f, 0x08, 0x04, 0x04, 0x78 } // 68 h
,{
0x00, 0x44, 0x7d, 0x40, 0x00 } // 69 i
,{
0x20, 0x40, 0x44, 0x3d, 0x00 } // 6a j
,{
0x7f, 0x10, 0x28, 0x44, 0x00 } // 6b k
,{
0x00, 0x41, 0x7f, 0x40, 0x00 } // 6c l
,{
0x7c, 0x04, 0x18, 0x04, 0x78 } // 6d m
,{
0x7c, 0x08, 0x04, 0x04, 0x78 } // 6e n
,{
0x38, 0x44, 0x44, 0x44, 0x38 } // 6f o
,{
0x7c, 0x14, 0x14, 0x14, 0x08 } // 70 p
,{
0x08, 0x14, 0x14, 0x18, 0x7c } // 71 q
,{
0x7c, 0x08, 0x04, 0x04, 0x08 } // 72 r
,{
0x48, 0x54, 0x54, 0x54, 0x20 } // 73 s
,{
0x04, 0x3f, 0x44, 0x40, 0x20 } // 74 t
,{
0x3c, 0x40, 0x40, 0x20, 0x7c } // 75 u
,{
0x1c, 0x20, 0x40, 0x20, 0x1c } // 76 v
,{
0x3c, 0x40, 0x30, 0x40, 0x3c } // 77 w
,{
0x44, 0x28, 0x10, 0x28, 0x44 } // 78 x
,{
0x0c, 0x50, 0x50, 0x50, 0x3c } // 79 y
,{
0x44, 0x64, 0x54, 0x4c, 0x44 } // 7a z
,{
0x00, 0x08, 0x36, 0x41, 0x00 } // 7b {
,{
0x00, 0x00, 0x7f, 0x00, 0x00 } // 7c |
,{
0x00, 0x41, 0x36, 0x08, 0x00 } // 7d }
,{
0x10, 0x08, 0x08, 0x10, 0x08 } // 7e ?
,{
0x00, 0x06, 0x09, 0x09, 0x06 } // 7f ?
};
/////////////////////////////////////////////////////////////////
// LCD Functions
/////////////////////////////////////////////////////////////////
void LcdWrite(byte dc, byte data)
{
bitWrite(PORTD, PIN_DC, dc) ;
bitWrite(PORTD, PIN_SCE, 0) ;
shiftOut(PIN_SDIN, PIN_SCLK, MSBFIRST, data);
bitWrite(PORTD, PIN_SCE, 1) ;
}
void LcdClear(void)
{
for (int index = 0; index < LCD_X * LCD_Y / 8; index++)
{
LcdWrite(LCD_D, 0x00);
}
}
void LcdInitialise(void)
{
pinMode(PIN_RESET, OUTPUT);
pinMode(PIN_DC, OUTPUT);
pinMode(PIN_SDIN, OUTPUT);
pinMode(PIN_SCLK, OUTPUT);
pinMode(PIN_SCE, OUTPUT);
digitalWrite(PIN_RESET, LOW);
// delay(1);
digitalWrite(PIN_RESET, HIGH);
LcdWrite( LCD_CMD, 0x21 ); // LCD Extended Commands.
LcdWrite( LCD_CMD, 0xB0 ); // Set LCD Vop (Contrast). //B1
LcdWrite( LCD_CMD, 0x04 ); // Set Temp coefficent. //0x04
LcdWrite( LCD_CMD, 0x14 ); // LCD bias mode 1:48. //0x13
LcdWrite( LCD_CMD, 0x0C ); // LCD in normal mode. 0x0d for inverse
LcdWrite(LCD_C, 0x20);
LcdWrite(LCD_C, 0x0C);
}
void drawLine(unsigned int x, unsigned int y, int mode){
y = y + bottom;
for(int j= bottom; j<y; j++)
{
setPixel(x, j, mode);
}
}
void setPixel(int x, int y, int d) {
if (x > 84 || y > 48) {
return;
}
// The LCD has 6 rows, with 8 pixels per row.
// 'y_mod' is the row that the pixel is in.
// 'y_pix' is the pixel in that row we want to enable/disable
int y_mod = (int)(y >> 3); // >>3 divides by 8
int y_pix = (y-(y_mod << 3));// <<3 multiplies by 8
int val = 1 << y_pix;
/// We have to keep track of which pixels are on/off in order to
// write the correct character out to the LCD.
if (d){
pixels[x][y_mod] |= val;
}
else {
pixels[x][y_mod] &= ~val;
}
// Write the updated pixel out to the LCD
// TODO Check if the pixel is already in the state requested,
// if so, don't write to LCD.
gotoXY(x,y_mod);
LcdWrite (1,pixels[x][y_mod]);
}
// gotoXY routine to position cursor
// x - range: 0 to 84
// y - range: 0 to 5
void gotoXY(int x, int y) {
LcdWrite( 0, 0x80 | x); // Column.
LcdWrite( 0, 0x40 | y); // Row.
}
byte rev_bits ( byte val )
{
byte ret = 0;
byte n_bits = 8;
for ( unsigned i = 0; i < n_bits; ++i ) {
ret = ( ret << 1 ) | ( val & 1 );
val >>= 1;
}
return ret;
}
void LcdCharacter(char character)
{
LcdWrite(LCD_D, 0x00);
for (int index = 5; index > -1; index=index-1)
{
LcdWrite(LCD_D, rev_bits(ASCII[character - 0x20][index]));
}
LcdWrite(LCD_D, 0x00);
}