📄 nokialcdnoram.c
字号:
/*--------------------------------------------------------------------------------------------------
Name : NokiaLCD.c
Description : This is a driver for the Nokia 84x48 graphic LCD.
Author : 2003-10-13 - Sylvain Bissonnette
History : NokiaLCD driver library with no videoram
--------------------------------------------------------------------------------------------------*/
#include <macros.h>
#include <iom8v.h>
#include "NokiaLCD.h"
#define LCD_FIRMWARE_VERSION 1.0
/*--------------------------------------------------------------------------------------------------
Character generator
This table defines the standard ASCII characters in a 5x7 dot format.
--------------------------------------------------------------------------------------------------*/
static const byte FontLookup [][5] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00 }, // sp
{ 0x00, 0x00, 0x2f, 0x00, 0x00 }, // !
{ 0x00, 0x07, 0x00, 0x07, 0x00 }, // "
{ 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // #
{ 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // $
{ 0xc4, 0xc8, 0x10, 0x26, 0x46 }, // %
{ 0x36, 0x49, 0x55, 0x22, 0x50 }, // &
{ 0x00, 0x05, 0x03, 0x00, 0x00 }, // '
{ 0x00, 0x1c, 0x22, 0x41, 0x00 }, // (
{ 0x00, 0x41, 0x22, 0x1c, 0x00 }, // )
{ 0x14, 0x08, 0x3E, 0x08, 0x14 }, // *
{ 0x08, 0x08, 0x3E, 0x08, 0x08 }, // +
{ 0x00, 0x00, 0x50, 0x30, 0x00 }, // ,
{ 0x10, 0x10, 0x10, 0x10, 0x10 }, // -
{ 0x00, 0x60, 0x60, 0x00, 0x00 }, // .
{ 0x20, 0x10, 0x08, 0x04, 0x02 }, // /
{ 0x3E, 0x51, 0x49, 0x45, 0x3E }, // 0
{ 0x00, 0x42, 0x7F, 0x40, 0x00 }, // 1
{ 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2
{ 0x21, 0x41, 0x45, 0x4B, 0x31 }, // 3
{ 0x18, 0x14, 0x12, 0x7F, 0x10 }, // 4
{ 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5
{ 0x3C, 0x4A, 0x49, 0x49, 0x30 }, // 6
{ 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7
{ 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8
{ 0x06, 0x49, 0x49, 0x29, 0x1E }, // 9
{ 0x00, 0x36, 0x36, 0x00, 0x00 }, // :
{ 0x00, 0x56, 0x36, 0x00, 0x00 }, // ;
{ 0x08, 0x14, 0x22, 0x41, 0x00 }, // <
{ 0x14, 0x14, 0x14, 0x14, 0x14 }, // =
{ 0x00, 0x41, 0x22, 0x14, 0x08 }, // >
{ 0x02, 0x01, 0x51, 0x09, 0x06 }, // ?
{ 0x32, 0x49, 0x59, 0x51, 0x3E }, // @
{ 0x7E, 0x11, 0x11, 0x11, 0x7E }, // A
{ 0x7F, 0x49, 0x49, 0x49, 0x36 }, // B
{ 0x3E, 0x41, 0x41, 0x41, 0x22 }, // C
{ 0x7F, 0x41, 0x41, 0x22, 0x1C }, // D
{ 0x7F, 0x49, 0x49, 0x49, 0x41 }, // E
{ 0x7F, 0x09, 0x09, 0x09, 0x01 }, // F
{ 0x3E, 0x41, 0x49, 0x49, 0x7A }, // G
{ 0x7F, 0x08, 0x08, 0x08, 0x7F }, // H
{ 0x00, 0x41, 0x7F, 0x41, 0x00 }, // I
{ 0x20, 0x40, 0x41, 0x3F, 0x01 }, // J
{ 0x7F, 0x08, 0x14, 0x22, 0x41 }, // K
{ 0x7F, 0x40, 0x40, 0x40, 0x40 }, // L
{ 0x7F, 0x02, 0x0C, 0x02, 0x7F }, // M
{ 0x7F, 0x04, 0x08, 0x10, 0x7F }, // N
{ 0x3E, 0x41, 0x41, 0x41, 0x3E }, // O
{ 0x7F, 0x09, 0x09, 0x09, 0x06 }, // P
{ 0x3E, 0x41, 0x51, 0x21, 0x5E }, // Q
{ 0x7F, 0x09, 0x19, 0x29, 0x46 }, // R
{ 0x46, 0x49, 0x49, 0x49, 0x31 }, // S
{ 0x01, 0x01, 0x7F, 0x01, 0x01 }, // T
{ 0x3F, 0x40, 0x40, 0x40, 0x3F }, // U
{ 0x1F, 0x20, 0x40, 0x20, 0x1F }, // V
{ 0x3F, 0x40, 0x38, 0x40, 0x3F }, // W
{ 0x63, 0x14, 0x08, 0x14, 0x63 }, // X
{ 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y
{ 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z
{ 0x00, 0x7F, 0x41, 0x41, 0x00 }, // [
{ 0x08, 0x08, 0x2a, 0x1c, 0x08 }, // Right Arrow
{ 0x00, 0x41, 0x41, 0x7F, 0x00 }, // ]
{ 0x04, 0x02, 0x01, 0x02, 0x04 }, // ^
{ 0x40, 0x40, 0x40, 0x40, 0x40 }, // _
{ 0x00, 0x01, 0x02, 0x04, 0x00 }, // '
{ 0x20, 0x54, 0x54, 0x54, 0x78 }, // a
{ 0x7F, 0x48, 0x44, 0x44, 0x38 }, // b
{ 0x38, 0x44, 0x44, 0x44, 0x20 }, // c
{ 0x38, 0x44, 0x44, 0x48, 0x7F }, // d
{ 0x38, 0x54, 0x54, 0x54, 0x18 }, // e
{ 0x08, 0x7E, 0x09, 0x01, 0x02 }, // f
{ 0x0C, 0x52, 0x52, 0x52, 0x3E }, // g
{ 0x7F, 0x08, 0x04, 0x04, 0x78 }, // h
{ 0x00, 0x44, 0x7D, 0x40, 0x00 }, // i
{ 0x20, 0x40, 0x44, 0x3D, 0x00 }, // j
{ 0x7F, 0x10, 0x28, 0x44, 0x00 }, // k
{ 0x00, 0x41, 0x7F, 0x40, 0x00 }, // l
{ 0x7C, 0x04, 0x18, 0x04, 0x78 }, // m
{ 0x7C, 0x08, 0x04, 0x04, 0x78 }, // n
{ 0x38, 0x44, 0x44, 0x44, 0x38 }, // o
{ 0x7C, 0x14, 0x14, 0x14, 0x08 }, // p
{ 0x08, 0x14, 0x14, 0x18, 0x7C }, // q
{ 0x7C, 0x08, 0x04, 0x04, 0x08 }, // r
{ 0x48, 0x54, 0x54, 0x54, 0x20 }, // s
{ 0x04, 0x3F, 0x44, 0x40, 0x20 }, // t
{ 0x3C, 0x40, 0x40, 0x20, 0x7C }, // u
{ 0x1C, 0x20, 0x40, 0x20, 0x1C }, // v
{ 0x3C, 0x40, 0x30, 0x40, 0x3C }, // w
{ 0x44, 0x28, 0x10, 0x28, 0x44 }, // x
{ 0x0C, 0x50, 0x50, 0x50, 0x3C }, // y
{ 0x44, 0x64, 0x54, 0x4C, 0x44 } // z
};
/*--------------------------------------------------------------------------------------------------
Name : LcdPower ( byte stat )
Description : Performs MCU SPI & LCD controller initialization.
Argument(s) : stat -> true or false
Return value : None.
Notes : Power ON or OFF LCD
--------------------------------------------------------------------------------------------------*/
void LcdPower ( byte stat )
{
if (stat)
{
LcdInit();
}
else
{
PORTB = 0xc0; // All LCD pin at 0
SPCR = 0x00; // Disable SPI
}
}
/*--------------------------------------------------------------------------------------------------
Name : LcdInit
Description : Performs MCU SPI & LCD controller initialization.
Argument(s) : None.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LcdInit ( void )
{
static byte FirstInit = TRUE;
// Pull-up on reset pin.
PORTB |= LCD_RST_PIN;
// Set output bits on port B.
DDRB |= LCD_RST_PIN | LCD_DC_PIN | LCD_CE_PIN | SPI_MOSI_PIN | SPI_CLK_PIN | LCD_POWER;
PORTB |= LCD_POWER;
Delay();
// Toggle display reset pin.
PORTB &= ~LCD_RST_PIN;
Delay();
PORTB |= LCD_RST_PIN;
// Enable SPI port: No interrupt, MSBit first, Master mode, CPOL->0, CPHA->0, Clk/4
SPCR = 0x50;
// Disable LCD controller
PORTB |= LCD_CE_PIN;
LcdSend( 0x21, LCD_CMD ); // LCD Extended Commands.
LcdSend( 0xC8, LCD_CMD ); // Set LCD Vop (Contrast).
LcdSend( 0x06, LCD_CMD ); // Set Temp coefficent.
LcdSend( 0x13, LCD_CMD ); // LCD bias mode 1:48.
LcdSend( 0x20, LCD_CMD ); // LCD Standard Commands, Horizontal addressing mode.
LcdSend( 0x0C, LCD_CMD ); // LCD in normal mode.
if (FirstInit == TRUE)
{
LcdClear();
FirstInit = FALSE;
}
}
/*--------------------------------------------------------------------------------------------------
Name : LcdContrast
Description : Set display contrast.
Argument(s) : contrast -> Contrast value from 0x00 to 0x7F.
Return value : None.
Notes : No change visible at ambient temperature.
--------------------------------------------------------------------------------------------------*/
void LcdContrast ( byte contrast )
{
// LCD Extended Commands.
LcdSend( 0x21, LCD_CMD );
// Set LCD Vop (Contrast).
LcdSend( 0x80 | contrast, LCD_CMD );
// LCD Standard Commands, horizontal addressing mode.
LcdSend( 0x20, LCD_CMD );
}
/*--------------------------------------------------------------------------------------------------
Name : LcdClear
Description : Clears the display. LcdUpdate must be called next.
Argument(s) : None.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LcdClear ( void )
{
int i;
for (i=0;i<=LCD_SIZE;i++) LcdSend(0x00,LCD_DATA);
}
/*--------------------------------------------------------------------------------------------------
Name : LcdGotoXY
Description : Sets cursor location to xy location corresponding to basic font size.
Argument(s) : x, y -> Coordinate for new cursor position. Range: 1,1 .. 14,6
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LcdGotoXY ( byte x, byte y )
{
LcdSend(0x80 | ((x-1)*6),LCD_CMD); // x
LcdSend(0x40 | (y-1),LCD_CMD); // y
}
/*--------------------------------------------------------------------------------------------------
Name : LcdChr
Description : Displays a character at current cursor location and increment cursor location.
Argument(s) : ch -> Character to write.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LcdChr(byte ch)
{
unsigned char i;
if ((ch < 0x20) || (ch > 0x7b)) ch = 92;
for (i=0;i<5;i++) LcdSend(FontLookup[ch-32][i],LCD_DATA);
LcdSend(0x00,LCD_DATA);
}
/*--------------------------------------------------------------------------------------------------
Name : LcdStr
Description : Displays a character at current cursor location and increment cursor location
Argument(s) : dataPtr -> Pointer to null terminated ASCII string to display.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LcdStr (byte *dataPtr )
{
while (*dataPtr) LcdChr(*dataPtr++);
}
/*--------------------------------------------------------------------------------------------------
Name : LcdStrConst
Description : Displays a character at current cursor location and increment cursor location
Argument(s) : dataPtr -> Pointer to null terminated ASCII string to display.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LcdStrConst (const char *dataPtr )
{
while (*dataPtr) LcdChr(*dataPtr++);
}
/*--------------------------------------------------------------------------------------------------
Name : LcdSend
Description : Sends data to display controller.
Argument(s) : data -> Data to be sent
cd -> Command or data (see/use enum)
Return value : None.
--------------------------------------------------------------------------------------------------*/
static void LcdSend ( byte data, LcdCmdData cd )
{
if ( cd == LCD_DATA )
{
PORTB |= LCD_DC_PIN;
}
else
{
PORTB &= ~LCD_DC_PIN;
}
PORTB &= ~LCD_CE_PIN;
// Send data to display controller.
SPDR = data;
// Wait until Tx register empty.
while ( (SPSR & 0x80) != 0x80 );
// Disable display controller.
PORTB |= LCD_CE_PIN;
PORTB &= ~LCD_DC_PIN; // Only due to 38Khz generator
}
/*--------------------------------------------------------------------------------------------------
Name : Delay
Description : Uncalibrated delay for LCD init routine.
Argument(s) : None.
Return value : None.
--------------------------------------------------------------------------------------------------*/
static void Delay ( void )
{
int i;
for ( i = 0; i < 32000; i++ );
}
/*--------------------------------------------------------------------------------------------------
End of file.
--------------------------------------------------------------------------------------------------*/
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -