?? tft018.c
字號:
/*
\\\|///
\\ - - //
( @ @ )
+---------------------oOOo-(_)-oOOo-------------------------+
| 智林STM32開發(fā)板試驗程序 |
| 1.8‘ TFT LCD Driver |
| 劉笑然 by Xiaoran Liu |
| 2008.4.16 |
| |
| 智林測控技術(shù)研究所 ZERO research group |
| www.the0.net |
| Oooo |
+-----------------------oooO--( )-------------------------+
( ) ) /
\ ( (_/
\_)
*/
/*----------------------------------------------------------*\
| 引入相關(guān)芯片的頭文件 |
\*----------------------------------------------------------*/
#include <stm32f10x_lib.h> // STM32F10x Library Definitions
#include "MyType.h"
#include "TFT018.h"
/*----------------------------------------------------------*\
| HARDWARE DEFINITIONS |
\*----------------------------------------------------------*/
/* PINS:
- DB0 = PC0
- DB1 = PC1
- DB2 = PC2
- DB3 = PC3
- DB4 = PC4
- DB5 = PC5
- DB6 = PC6
- DB7 = PC7
- RD = PC8
- RW = PC9
- RS = PC10
- RST = PC11
- CS = PC12 */
#define PIN_CS ( 1 << 12)
#define PIN_RST ( 1 << 11)
#define PIN_RS ( 1 << 10)
#define PIN_RW ( 1 << 9)
#define PIN_RD ( 1 << 8)
#define PINS_CTRL (0x1F << 8)
#define PINS_DATA (0xFF << 0)
#define PINS_ALL (PINS_CTRL | PINS_DATA)
/* Enable Clock for peripheral driving LCD pins */
#define LCD_CLOCK_EN (RCC->APB2ENR |= (1 << 4)); // enable clock for GPIOC
/* pin CS setting to 0 or 1 */
#define LCD_CS(x) GPIOC->ODR = (GPIOC->ODR & ~PIN_CS) | (x ? PIN_CS : 0);
/* pin RST setting to 0 or 1 */
#define LCD_RST(x) GPIOC->ODR = (GPIOC->ODR & ~PIN_RST) | (x ? PIN_RST : 0);
/* pin RS setting to 0 or 1 */
#define LCD_RS(x) GPIOC->ODR = (GPIOC->ODR & ~PIN_RS) | (x ? PIN_RS : 0);
/* pin RW setting to 0 or 1 */
#define LCD_RW(x) GPIOC->ODR = (GPIOC->ODR & ~PIN_RW) | (x ? PIN_RW : 0);
/* pin RD setting to 0 or 1 */
#define LCD_RD(x) GPIOC->ODR = (GPIOC->ODR & ~PIN_RD) | (x ? PIN_RD : 0);
/* Reading DATA pins */
#define LCD_DATA_IN (((GPIOC->IDR & PINS_DATA) >> 0) & 0xFF)
/* Writing value to DATA pins */
#define LCD_DATA_OUT(x) GPIOC->ODR = (GPIOC->ODR & ~PINS_DATA) | (x << 0);
/* Setting all pins to output mode */
#define LCD_ALL_DIR_OUT GPIOC->CRL = (GPIOC->CRL & 0x00000000) | 0x33333333; \
GPIOC->CRH = (GPIOC->CRH & 0xFFF00000) | 0x00033333;
/* Setting DATA pins to input mode */
#define LCD_DATA_DIR_IN GPIOC->CRL = (GPIOC->CRL & 0x00000000) | 0x44444444;
/* Setting DATA pins to output mode */
#define LCD_DATA_DIR_OUT GPIOC->CRL = (GPIOC->CRL & 0x00000000) | 0x33333333;
/*----------------------------------------------------------*\
| SOFTWARE DEFINITIONS |
\*----------------------------------------------------------*/
/*------------------------- Speed dependant settings -------------------------*/
/* If processor works on high frequency delay has to be increased, it can be
increased by factor 2^N by this constant */
#define DELAY_2N 0
volatile U8 Font=0;
/*----------------------------------------------------------*\
| Delay in while loop cycles |
| cnt: number of while cycles to delay |
\*----------------------------------------------------------*/
static void delay (int cnt) {
cnt <<= DELAY_2N;
while (cnt--);
}
/*----------------------------------------------------------*\
| LOW LEVEL OPERATE : BUS simulate |
\*----------------------------------------------------------*/
void LCD_Bus_Initial( void ) {
LCD_CLOCK_EN /* Enable clock for peripheral */
/* Set all pins for LCD as outputs */
LCD_ALL_DIR_OUT
LCD_RST(0);
delay( 15000 );
LCD_CS(1);
LCD_RW(1);
LCD_RD(1);
LCD_RS(1);
LCD_RST(1);
}
void LCD_Bus_Write_Byte( unsigned char Data ) {
LCD_DATA_OUT( Data );
LCD_RW(0);
delay( 1 );
LCD_RW(1);
}
void LCD_Bus_Write_Data( unsigned short Data ) {
LCD_Bus_Write_Byte( Data>>8 );
LCD_Bus_Write_Byte( Data );
}
unsigned int LCD_Bus_Read_Byte( void ) {
unsigned int BusData;
LCD_DATA_DIR_IN;
LCD_RD(0);
BusData = LCD_DATA_IN;
delay( 1 );
LCD_RD(1);
return BusData>>8;
}
void LCD_Inst(unsigned int Cmd) {
LCD_CS(0);
LCD_RD(1);
LCD_RS(0);
LCD_Bus_Write_Byte( Cmd );
LCD_CS(1);
}
void LCD_Data(unsigned int Data) {
LCD_CS(0);
LCD_RD(1);
LCD_RS(1);
LCD_Bus_Write_Byte( Data );
LCD_CS(1);
}
void LCD_Reg_Set(unsigned int Cmd,unsigned int Data) {
LCD_CS(0);
LCD_RD(1);
LCD_RS(0);
LCD_Bus_Write_Byte( Cmd );
LCD_RS(1);
LCD_Bus_Write_Byte( Data );
LCD_CS(1);
}
/*----------------------------------------------------------*\
| HIGHLEVEL OPERATION |
\*----------------------------------------------------------*/
void LCD_Init( void ) {
LCD_Bus_Initial();
LCD_Inst(0x11); // sleep out/power on(SLPOUT)
delay( 1500 );
LCD_Inst(0x20); // display inversion off
LCD_Inst(0x38); // ID mode off (IDMOFF)
LCD_Inst(0x13); // Normal display mode on (Partial mode off)
// color mode Interface pixel format (COLMOD)
LCD_Reg_Set(0x3A,0x05); // 16-bit/pixel , 1-times data transfer
LCD_Reg_Set(0xC0,0x03); // power control 1 (PWCTR1) , GVDD voltage set 4.65
LCD_Reg_Set(0xC1,0x05); // VCOMH voltage set 4.10V
delay( 1500 );
LCD_Reg_Set(0xC5,0xBA); // VCOMAC voltage set 4.35V
LCD_Reg_Set(0xC6,0x10); // VCOMAC voltage set 4.35V
delay( 1500 );
// Gamma voltage adjustalbe level
//Gamma + Polarity correction characteristics set
LCD_Inst(0xE0);
LCD_Data(0x01);
LCD_Data(0x0A);
LCD_Data(0x11);
LCD_Data(0x23);
LCD_Data(0x20);
LCD_Data(0x01);
LCD_Data(0x1E);
LCD_Data(0x02);
LCD_Data(0x06);
LCD_Data(0x05);
LCD_Data(0x0E);
LCD_Data(0x0D);
LCD_Data(0x01);
LCD_Data(0x05);
LCD_Data(0x03);
LCD_Data(0x06);
//Gamma + Polarity correction characteristics set
LCD_Inst(0xE1);
LCD_Data(0x01);
LCD_Data(0x20);
LCD_Data(0x23);
LCD_Data(0x11);
LCD_Data(0x0A);
LCD_Data(0x01);
LCD_Data(0x02);
LCD_Data(0x1E);
LCD_Data(0x06);
LCD_Data(0x03);
LCD_Data(0x05);
LCD_Data(0x01);
LCD_Data(0x0D);
LCD_Data(0x0E);
LCD_Data(0x05);
LCD_Data(0x06);
// memory data access control (MADCTR)
LCD_Reg_Set(0x36,0xA0); // MY=1; MX=0; MV=0; ML=0; RGB=0
LCD_Inst(0x37);
LCD_Data(0x00);
LCD_Data(0x00);
// display on
LCD_Inst(0x29);
}
void LCD_SetArea( U8 x0, U8 y0, U8 x1, U8 y1 ) {
LCD_Inst(0x2A);
LCD_Data(0x00);
LCD_Data(x0+1);
LCD_Data(0x00);
LCD_Data(x1+1);
LCD_Inst(0x2B);
LCD_Data(0x00);
LCD_Data(y0+1);
LCD_Data(0x00);
LCD_Data(y1+1);
}
void LCD_Rectangle( unsigned short x0, unsigned short y0, unsigned short x1, unsigned short y1, unsigned int Data ) {
int x,y;
LCD_SetArea(x0,y0,x1,y1);
LCD_Inst(0x2C);
LCD_CS(0);
LCD_RD(1);
LCD_RS(1);
for(x=0;x<=x1-x0;x++)
for(y=0;y<=y1-y0;y++) {
LCD_Bus_Write_Byte( Data>>8 );
LCD_Bus_Write_Byte( Data );
}
LCD_CS(1);
}
void LCD_Clear_Screen( unsigned int Data ) {
LCD_Rectangle(0,0,159,128, Data );
}
void LCD_SetPixel(unsigned short x, unsigned short y, unsigned short color) {
LCD_SetArea(x,y,x,y);
LCD_Inst(0x2C);
LCD_CS(0);
LCD_RD(1);
LCD_RS(1);
LCD_Bus_Write_Byte( color>>8 );
LCD_Bus_Write_Byte( color );
LCD_CS(1);
}
#include "8X16.h"
void LCD_PutChar8x16(unsigned short x, unsigned short y, char c, unsigned int f, unsigned int b) {
register unsigned int i,j;
LCD_SetArea(x,y,x+8-1,y+16-1);
LCD_Inst(0x2C);
LCD_CS(0);
LCD_RD(1);
LCD_RS(1);
for(i=0; i<16;i++) {
unsigned char m=Font8x16[c*16+i];
for(j=0;j<8;j++) {
if((m&0x80)==0x80) {
LCD_Bus_Write_Byte(f>>8);
LCD_Bus_Write_Byte(f);
}
else {
LCD_Bus_Write_Byte(b>>8);
LCD_Bus_Write_Byte(b);
}
m<<=1;
}
}
LCD_CS(1);
}
#include "8X8h.h"
void LCD_PutChar8x8(unsigned short x, unsigned short y, char c, unsigned int f, unsigned int b) {
register unsigned int i,j;
LCD_SetArea(x,y,x+8-1,y+8-1);
LCD_Inst(0x2C);
LCD_CS(0);
LCD_RD(1);
LCD_RS(1);
for(i=0; i<8;i++) {
unsigned char m=Font8x8[c][i];
for(j=0;j<8;j++) {
if((m&0x80)==0x80) {
LCD_Bus_Write_Byte(f>>8);
LCD_Bus_Write_Byte(f);
}
else {
LCD_Bus_Write_Byte(b>>8);
LCD_Bus_Write_Byte(b);
}
m<<=1;
}
}
LCD_CS(1);
}
void LCD_PutChar(unsigned short x, unsigned short y, char c, unsigned int f, unsigned int b) {
if( Font )
LCD_PutChar8x8( x, y, c, f, b );
else
LCD_PutChar8x16( x, y, c, f, b );
}
void LCD_PutString(unsigned short x, unsigned short y, char *s, unsigned int f, unsigned int b) {
register unsigned char l=0;
while(*s) {
LCD_PutChar(x+l*8,y,*s,f,b);
s++;l++;
}
}
/*----------------------------------------------------------*\
| END OF FILE |
\*----------------------------------------------------------*/
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