STM8下驱动192*64 LCD

ifree64 · 发表于 2009-3-28 00:26:14

以下代码驱动192*64的LCD已经成功地在STM8下运行，速度有点慢，还请大家改进

// 头文件: LCD_19264.H

#ifndef _LCD19264_H
#define _LCD19264_H

#include "stm8s.h"

// DB0~DB7
#define LCD_DATA_PORT (GPIOB)
#define LCD_DATA_PIN (GPIO_PIN_ALL)
// E, RS, RW
#define LCD_CONTROL_PORT (GPIOA)
#define LCD_E_PIN (GPIO_PIN_4)
#define LCD_RW_PIN (GPIO_PIN_5)
#define LCD_RS_PIN (GPIO_PIN_6)
// CSA, CSB
#define LCD_CS_PORT (GPIOG)
#define LCD_CSA_PIN (GPIO_PIN_0)
#define LCD_CSB_PIN (GPIO_PIN_1)

#define LCD_RES_PORT (GPIOE)
#define LCD_RES_PIN    (GPIO_PIN_0)

#define LCD_LEFT       ((u8)1)
#define LCD_MID       ((u8)2)
#define LCD_RIGHT    ((u8)3)

#define LCD_DISPLAY_ON  ((u8)0x3f)
#define LCD_DISPLAY_OFF ((u8)0x3e)
#define LCD_YADDR_BASE  ((u8)0x40)
#define LCD_XPAGE_BASE  ((u8)0xB8)
#define LCD_START_LINE  ((u8)0xC0)

typedef enum _DrawMode{
LCD_CLEAR,
LCD_NOT,
LCD_SET
}DrawMode;

void LCD_Init(void);
void LCD_WriteCommand(u8 cmd, u8 ChipSel);
void LCD_WriteData(u8 Data, u8 ChipSel);
void LCD_BufferDrawPixel(u8 x, u8 y, DrawMode mode);
void LCD_BufferDrawLine(u8 x1, u8 y1, u8 x2, u8 y2, DrawMode mode);
void LCD_BufferToLCD(void);

#endif

// C语言文件LCD_19264.C
#include "lcd_19264.h"
#include "delay.h"

#define LCD_CSA_H() (GPIO_WriteHigh(LCD_CS_PORT, LCD_CSA_PIN))
#define LCD_CSA_L() (GPIO_WriteLow(LCD_CS_PORT, LCD_CSA_PIN))
#define LCD_CSB_H() (GPIO_WriteHigh(LCD_CS_PORT, LCD_CSB_PIN))
#define LCD_CSB_L() (GPIO_WriteLow(LCD_CS_PORT, LCD_CSB_PIN))
#define LCD_E_H() (GPIO_WriteHigh(LCD_CONTROL_PORT, LCD_E_PIN))
#define LCD_E_L() (GPIO_WriteLow(LCD_CONTROL_PORT, LCD_E_PIN))
#define LCD_RS_H() (GPIO_WriteHigh(LCD_CONTROL_PORT, LCD_RS_PIN))
#define LCD_RS_L() (GPIO_WriteLow(LCD_CONTROL_PORT, LCD_RS_PIN))
#define LCD_RW_H() (GPIO_WriteHigh(LCD_CONTROL_PORT, LCD_RW_PIN))
#define LCD_RW_L() (GPIO_WriteLow(LCD_CONTROL_PORT, LCD_RW_PIN))

#define LCD_DATA_INPUT_MODE() (GPIO_Init(LCD_DATA_PORT, LCD_DATA_PIN, GPIO_MODE_IN_FL_NO_IT))
#define LCD_DATA_OUTPUT_MODE()  (GPIO_Init(LCD_DATA_PORT, LCD_DATA_PIN, GPIO_MODE_OUT_PP_HIGH_FAST))
#define LCD_SET_DATA(x)          (GPIO_Write(LCD_DATA_PORT, x))
#define LCD_READ_DATA()          (GPIO_ReadInputData(LCD_DATA_PORT))

@near static u8 DisplayBuffer[8][192];

void LCD_WriteCommand(u8 cmd, u8 ChipSel)
{
LCD_E_L();
LCD_RW_L();

if( ChipSel == LCD_LEFT )
{
      LCD_CSB_L();
LCD_CSA_L();
}
else if( ChipSel == LCD_MID )
{
      // CSB_CSA
LCD_CSB_L();
      LCD_CSA_H();
}
else
{
      LCD_CSB_H();
LCD_CSA_L();
}

LCD_RS_L(); // Command signal
//delay_us(1);
LCD_E_H();

LCD_SET_DATA(cmd);
delay_us(1);

LCD_E_L();
LCD_RW_H();
LCD_CSB_H();
LCD_CSA_H();
LCD_E_H();

}

void LCD_WriteData(u8 Data, u8 ChipSel)
{
LCD_E_L();
LCD_RW_L();
if( ChipSel == LCD_LEFT )
{
      LCD_CSB_L();
LCD_CSA_L();
}
else if( ChipSel == LCD_MID )
{
      // CSB_CSA
LCD_CSB_L();
      LCD_CSA_H();
}
else
{
      LCD_CSB_H();
LCD_CSA_L();
}
LCD_RS_H(); // Data signal
//delay_us(1);
LCD_E_H();

LCD_SET_DATA(Data);
delay_us(1);

LCD_E_L();
LCD_RW_H();
LCD_CSB_H();
LCD_CSA_H();
LCD_E_H();
}

void LCD_Init(void)
{
int i;
@near u8 *p;
p = (u8*)DisplayBuffer;
GPIO_Init(LCD_DATA_PORT, LCD_DATA_PIN, GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(LCD_CONTROL_PORT, (LCD_E_PIN|LCD_RS_PIN|LCD_RW_PIN), GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(LCD_CS_PORT, (LCD_CSA_PIN|LCD_CSB_PIN), GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(LCD_RES_PORT, LCD_RES_PIN, GPIO_MODE_OUT_PP_HIGH_FAST);

for(i = 0; i < 192*8; ++i, ++p)
      *p = 0;
LCD_WriteCommand(LCD_DISPLAY_ON, LCD_LEFT);
LCD_WriteCommand(LCD_DISPLAY_ON, LCD_MID);
LCD_WriteCommand(LCD_DISPLAY_ON, LCD_RIGHT);
LCD_WriteCommand(LCD_START_LINE+0, LCD_LEFT);

}

void LCD_BufferDrawPixel(u8 x, u8 y, DrawMode mode)
{
char DX = (y >> 3);                // 计算字节
char BX = (y & 0x07);             // 计算是字节的第几位
u8 temp = (1<<BX);

switch(mode){
case LCD_CLEAR:
DisplayBuffer[DX][x] &= ~(1<<BX);
break;
case LCD_NOT:
DisplayBuffer[DX][x] ^= (1<<BX);
break;
case LCD_SET:
DisplayBuffer[DX][x] |= (1<<BX);
break;
default:
break;
}
}

// (x,y) Start Point
static void LCD_BufferDrawXLine(u8 x, u8 y, u8 len, DrawMode mode)
{
u8 DX = (y >> 3);
u8 BX = (y & 0x07);
u8 mask = (1 << BX);
u8 nmask = ~mask;
u8 i;
for( i = 0; i < len; ++i,++x)
switch(mode){
case LCD_CLEAR:
DisplayBuffer[DX][x] &= nmask;
break;
case LCD_NOT:
DisplayBuffer[DX][x] ^= mask;
break;
case LCD_SET:
DisplayBuffer[DX][x] |= mask;
break;
default:
break;
}

}

// (x,y) Start Point
static void LCD_BufferDrawYLine(u8 x, u8 y, u8 len, DrawMode mode)
{
u8 DX = (y >> 3);
u8 BX = (y & 0x07);
switch(mode){
case LCD_CLEAR:
DisplayBuffer[DX][x] &= ~(0xff << BX);
break;
case LCD_NOT:
DisplayBuffer[DX][x] ^= (0xff << BX);
break;
case LCD_SET:
DisplayBuffer[DX][x] |= (0xff << BX);
break;
default:
break;
}
DX++;
len -= (8-BX);
while( len >= 8 )
{
switch(mode){
case LCD_CLEAR:
DisplayBuffer[DX][x] &= 0;
break;
case LCD_NOT:
DisplayBuffer[DX][x] ^= 0xff;
break;
case LCD_SET:
DisplayBuffer[DX][x] |= 0xff;
break;
default:
break;
}
DX++;
len -= 8;
}
if(len)
{
switch(mode){
case LCD_CLEAR:
DisplayBuffer[DX][x] &= (0xff << len);
break;
case LCD_NOT:
DisplayBuffer[DX][x] ^= ~(0xff << len);
break;
case LCD_SET:
DisplayBuffer[DX][x] |= ~(0xff << len);
break;
default:
break;
}
}
}

#define abs(x) ((x>0)?(x):(-(x)))

void LCD_BufferDrawLine(u8 x1, u8 y1, u8 x2, u8 y2, DrawMode mode)
{
int dx = x2 - x1;
int dy = y2 - y1;
int x = x1;
int y = y1;
int d;
int incrE;
int incrNE;

if( 0 == dx )
LCD_BufferDrawYLine(x1, y1, dy, mode);
else if( 0 == dy )
LCD_BufferDrawXLine(x1, y1, dx, mode);
else
{
// Bresenham Midpoint Line
if( abs(dx) > abs(dy) )
{ // 0 < k < 1
d = 2 * dy - dx;
incrE = 2 * dy;
incrNE = 2 * (dy - dx);
while( x < x2 )
{
LCD_BufferDrawPixel(x, y, mode);
x++;
if( d > 0 )
{
y++;
d += incrNE;
}
else
d += incrE;
}
LCD_BufferDrawPixel(x, y, mode);
}
else
{ // k > 1
d = 2 * dx - dy;
incrE = 2 * dy;
incrNE = 2 * (dy - dx);
while( y < y2 )
{
LCD_BufferDrawPixel(x, y, mode);
y++;
if( d > 0 )
{
x++;
d += incrNE;
}
else
d += incrE;
}
LCD_BufferDrawPixel(x, y, mode);
}
}

}

void LCD_BufferToLCD(void)
{
u8 i, j;
for( i = 0; i < 8; ++i )
{
LCD_WriteCommand( LCD_XPAGE_BASE + i, LCD_LEFT );
LCD_WriteCommand( LCD_YADDR_BASE + 0, LCD_LEFT);
for( j = 0; j < 64; ++j)
LCD_WriteData(DisplayBuffer[j], LCD_LEFT);

      LCD_WriteCommand( LCD_XPAGE_BASE + i, LCD_MID );
LCD_WriteCommand( LCD_YADDR_BASE + 0, LCD_MID );
      for( ; j < 128; ++j)
         LCD_WriteData(DisplayBuffer[j], LCD_MID);

      LCD_WriteCommand( LCD_XPAGE_BASE + i, LCD_RIGHT);
LCD_WriteCommand( LCD_YADDR_BASE + 0, LCD_RIGHT );
      for( ; j < 192; ++j)
         LCD_WriteData(DisplayBuffer[j], LCD_RIGHT);
}
}

ifree64 · 发表于 2009-3-28 00:29:53

用于测试的主程序
void main(void)
{
LCD_Init();
LCD_BufferToLCD();
LCD_BufferDrawPixel(0, 0, LCD_SET);
LCD_BufferDrawPixel(63, 63, LCD_SET);
LCD_BufferDrawPixel(80, 23, LCD_SET);
LCD_BufferDrawPixel(191, 9, LCD_SET);
LCD_BufferDrawLine(0, 0, 191, 63, LCD_SET);
LCD_BufferDrawLine(0, 2, 0, 60, LCD_SET);
LCD_BufferDrawLine(0, 0, 191, 0, LCD_SET);

/* Infinite loop */
while (1)
{
LCD_BufferToLCD();
}

}

ifree64 · 发表于 2009-3-28 00:35:25

我试过直接画点到LCD和用缓冲区两种方案，速度都很慢，画完整个屏幕大约用掉1秒，这个速度怎么显示波形？

用的是板子上的PB口接的LCD的DB0~DB7

因为板子上的PB0~PB2引脚用0欧电阻接电容接地了，这个会不会对速度有影响？

dvhome · 发表于 2009-3-28 01:05:17

应该会有影响

可以使用别的IO代替呀

ifree64 · 发表于 2009-3-28 02:20:38

/*
19264测试程式，stm8207s8
*/

#include "stm8s207r.h"       /* Registers and memory mapping file. */

#define E_H PA_ODR |= (1<<4)
#define E_L PA_ODR &= ~(1<<4)

#define RW_H PA_ODR |= (1<<5)
#define RW_L PA_ODR &= ~(1<<5)

#define DI_H PA_ODR |= (1<<6)
#define DI_L PA_ODR &= ~(1<<6)

#define CSB_H PG_ODR |= 0X02
#define CSB_L PG_ODR &= ~0X02

#define CSA_H PG_ODR |= 0X01
#define CSA_L PG_ODR &= 0XFE

#define RES_H PE_ODR |= 0X01
#define RES_L PE_ODR &= ~0X01

#define DB PB_ODR

#define ON 1
#define OFF 0
#define CMD 0
#define DAT 1
#define RIGHT 0
#define MID 1
#define LEFT 2
#define u_char unsigned char

#define ADD_Y0 0x40
#define ADD_X0 0xB8
#define DISP_SL0 0xC0
#define DISP_ON    0x3F
#define DISP_OFF 0x3E

#define OSC 8000000L

#if(OSC==1000000)
#define NOP 1
#endif

#if(OSC==8000000)
#define NOP 9
#endif

u_char const chars[8][64]={
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0xF0,0xE0,0xE0,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x10,0x30,0x30,0x30,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x18,0x1C,0x1C,0x18,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0x80,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0xF7,0xFF,0xFF,0xFF,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0xF8,0xFE,0xFC,0x38,0x10,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0xE2,0xFE,0xFE,0xFE,0x7A,0x32,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x03,0x03,0x03,0x03,0x03,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xF0,0x7C,0x3F,0x0F,0x07,0x01,0x00,0x00,0x00,0x00,0x00,0x18,0x70,0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xFF,0xFF,0x3F,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0xC0,0xE0,0xF0,0xF8,0xDE,0xC7,0xC3,0xC1,0xC0,0xC0,0xC0,0xC0,0xE0,0x60,0x60,0x60,0x60,0x60,0x20,0x20,0x30,0x33,0x3F,0x7F,0xFE,0xFC,0xF0,0x00,0x00,0x00,0x80,0xE0,0xF8,0xFE,0x3F,0x0F,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x01,0x07,0x07,0x07,0x03,0x03,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x83,0xC3,0xF1,0x78,0x3C,0x1E,0x0F,0x03,0x01,0x00,0x00,0x00,0x00,0x40,0x40,0xC0,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xC0,0xF0,0xFF,0xFF,0x3F,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x18,0x0C,0x06,0x07,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x07,0x1F,0x1F,0x0F,0x07,0x03,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"动",2*/
};

u_char const chars1[8][64]={
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x60,0xC0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0xF0,0xF0,0xE0,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x04,0x0C,0x04,0x04,0x04,0x04,0x04,0x04,0xFC,0xFC,0xFC,0x7C,0x04,0x04,0x04,0x04,0x06,0x07,0x07,0x07,0x06,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x1F,0x7F,0x3F,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xF0,0x3F,0x0F,0x07,0x01,0x00,0x00,0x00,0x00,0x80,0xC0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0xFE,0xFF,0x7F,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x03,0x03,0x03,0x03,0xE1,0xF9,0xF9,0xF1,0x31,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0xF1,0xFD,0xF9,0x79,0x31,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xF0,0xFE,0xFF,0xFF,0x17,0x10,0x10,0x10,0x10,0x10,0x10,0xF8,0xFC,0xFC,0x38,0x10,0x00,0x00,0x00,0x80,0xF0,0xFE,0x3F,0x0F,0x03,0x00,0x00,0x80,0xF0,0xFE,0xFE,0x3C,0x18,0x08,0x00,0x00,0xC0,0xF8,0x7F,0x1F,0x07,0x01,0x00,0x00,0x00,0xE0,0xFC,0xF8,0xF0,0x30,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0xC0,0xF0,0x7C,0x1F,0x0F,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x40,0xE0,0xF0,0xF8,0xFE,0xE7,0xE3,0x60,0x60,0x60,0x20,0xE0,0xFC,0x7F,0x1F,0x07,0x01,0x00,0x00,0x70,0xF8,0xFE,0xE7,0x61,0x60,0x20,0x20,0x20,0xA0,0xF0,0xFE,0x7F,0x1F,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x03,0x01,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x03,0x01,0x01,0x00,0x00,0xC0,0xF0,0x7C,0x1F,0x07,0x01,0x60,0xC0,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0xC0,0xF0,0x7E,0x1F,0x07,0x01,0x40,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x7F,0x7F,0x3F,0x00,0x80,0xC0,0xE0,0xF0,0xDC,0xCF,0xC3,0xC1,0xE0,0xE0,0x60,0x60,0x20,0x23,0x3F,0xFE,0xFC,0xF0,0xC0,0x00,0xC0,0xE0,0xF8,0xDE,0xC7,0xC1,0xC0,0xC0,0xC0,0x40,0x60,0x61,0x2F,0xFE,0xFC,0xF0,0xE0,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x07,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x07,0x07,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x03,0x03,0x00,0x00,0x00,0x03,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x0F,0x07,0x00,0x00,0x00,0x00},/*"磁",1*/
};

u_char const chars2[8][64]={
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xF0,0xE0,0xC0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0xF0,0xF0,0x60,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0xF0,0xE0,0xE0,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x80,0xC0,0xF0,0x78,0x3E,0x1F,0x07,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0xFC,0xFC,0xF8,0x18,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0xFC,0xFC,0xF8,0x18,0x08,0x00,0x00,0x00,0x00,0x00,0xF8,0xFF,0xFF,0x3F,0x07,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x0C,0x06,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0xE0,0xF8,0xFE,0xFC,0x3C,0x18,0x00,0x20,0x7F,0xFF,0x7F,0x20,0x20,0x20,0x20,0x3F,0x3F,0x3F,0x20,0x20,0x20,0x20,0xFF,0x7F,0x7F,0x00,0x00,0x00,0x00,0x80,0xF0,0xFF,0xFF,0x1F,0x11,0x10,0x10,0x10,0x10,0x10,0x90,0xF0,0xF0,0xF8,0x1C,0x1F,0x1C,0x18,0x10,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xE0,0xF8,0x3C,0xFF,0xFF,0xFF,0x01,0x00,0x00,0x00,0x00,0x00,0x60,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x30,0x38,0x38,0x30,0x20,0x40,0xE0,0x78,0x1F,0x07,0x01,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x80,0xFF,0xFF,0xFF,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x60,0x30,0x1C,0x06,0x03,0x01,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0xF8,0xF0,0xF0,0x20,0x20,0x20,0x20,0x20,0x30,0xF8,0xFC,0xF8,0x30,0x00,0x00,0x07,0x01,0x00,0x00,0x00,0x00,0x0F,0xFF,0xF8,0x80,0x00,0x00,0xF0,0xFF,0xFF,0x1F,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xFF,0xFF,0x3F,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x80,0xC0,0xC0,0x60,0x30,0x18,0x0C,0x00,0x00,0x00,0x03,0xDF,0xFF,0xFC,0xFF,0xFF,0x8F,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x80,0xE0,0x78,0x1F,0x0F,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x0F,0x1F,0x3F,0x0F,0x07,0x81,0x80,0xC0,0xE0,0xF0,0x70,0x38,0x3C,0x1E,0x0F,0x07,0x03,0x03,0x07,0x1F,0x3F,0x7E,0xFC,0xF8,0xF0,0xE0,0xE0,0xC0,0x80,0x80,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0x1F,0x0F,0x00,0x00,0x04,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x08,0x08,0x0C,0x04,0x06,0x07,0x03,0x03,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x07,0x03,0x01,0x00,0x00,0x00,0x00,0x00},/*"微",0*/
};

void vDelay(unsigned int time_uS)
{
while(time_uS--)
{
      _asm("nop\n");
//asm ("nop"::);
// asm ("nop"::);
}
}

void vLCD_WR(u_char cDatas,
   u_char cSl_chip,
   u_char cDat_type)
{
E_L;
RW_L;
if(cSl_chip==RIGHT)
{
CSB_L;
CSA_H;
}else if(cSl_chip==MID)
{
CSB_H;
CSA_L;
}else
{
CSB_L;
CSA_L;
}
if(cDat_type==CMD)
{
DI_L;
}else
{
DI_H;
}

E_H;

DB=cDatas;

vDelay(1*NOP);

E_L;
RW_H;
E_H;
CSB_H;
CSA_H;
}

u_char cLCD_RD( u_char cSl_chip,
u_char cDat_type )
{
u_char m_cDatas;

E_L;
RW_H;
if(cSl_chip==RIGHT)
{
CSB_L;
CSA_H;
}else if(cSl_chip==MID)
{
CSB_H;
CSA_L;
}else
{
CSB_L;
CSA_L;
}
if(cDat_type==CMD)
{
DI_L;
}else
{
DI_H;
}

E_H;

vDelay(1*NOP);

m_cDatas=DB;

RW_L;
E_H;
CSB_H;
CSA_H;
return(m_cDatas);
}

/*
void vLCD_Init(void)
{
u_char m_cAdd_X,m_cAdd_Y,m_cChip;
u_char m_cCount,m_Tmp;
u_char m_cDisp_mod,m_cDisp_sl;
u_char m_cmd=0;
u_char m_dat=1;

DDRA=0xFF; //端口配制为输出
DDRB=0xFF;
DDRD=0xFF;
PORTA=0xFF;

RES_H;

for(m_cChip=0;m_cChip<3;m_cChip++)
{

m_cAdd_Y =ADD_Y0;
m_cAdd_X =ADD_X0;
m_cDisp_sl =DISP_SL0;
m_cDisp_mod =DISP_ON;

vLCD_WR(m_cDisp_mod,m_cChip,m_cmd);
vLCD_WR(m_cDisp_sl,m_cChip,m_cmd);

for(m_Tmp=0;m_Tmp<8;m_Tmp++)
{
vLCD_WR(m_cAdd_Y,m_cChip,m_cmd);
vLCD_WR(m_cAdd_X,m_cChip,m_cmd);
for(m_cCount=0;m_cCount<64;m_cCount++)
{
vLCD_WR(0x00,m_cChip,m_dat); //清屏操作
}
m_cAdd_X++;
}
}
}
*/

void GPIO_Init(void)
{
PB_DDR = 0xff;
PB_CR1 = 0xff;
PB_CR2 = 0xff;

PA_DDR |= (1<<4)|(1<<5)|(1<<6);             /* Output.                */
PA_CR1 |= (1<<4)|(1<<5)|(1<<6);             /* PushPull.                */
PA_CR2 |= (1<<4)|(1<<5)|(1<<6);             /* Output speed up to 10MHz. */

PG_DDR |= 0X03;
PG_CR1 |= 0X03;
PG_CR2 |= 0X03;

PE_DDR |= 0X01;
PE_CR1 |= 0X01;
PE_CR2 |= 0X01;

}

/* -------------------------------------------------------------------------- */
/* ROUTINE NAME: CLK_Init                                                    */
/* INPUT/OUTPUT: None.                                                       */
/* DESCRIPTION:  Initialize the clock source                               */
/* -------------------------------------------------------------------------- */
void CLK_Init(void)
{
/* Configure HSI prescaler*/
CLK_CKDIVR &= ~0x10;       /* 01: fHSI= fHSI RC output/2. */

/* Configure CPU clock prescaler */
CLK_CKDIVR |= 0x01;          /* 001: fCPU=fMASTER/2. */
}

int main(void)
{
u_char m_cAdd_X,m_cAdd_Y,m_cChip;
u_char m_cDisp_mod,m_cDisp_sl;
u_char m_cCount,m_Tmp;
u_char *pcChars[3];
u_char m_cmd=0;
u_char m_dat=1;

// vLCD_Init;

CLK_Init();
GPIO_Init();

RES_H;

pcChars[0]=chars[0];
pcChars[1]=chars1[0];
pcChars[2]=chars2[0];

for(m_cChip=0;m_cChip<3;m_cChip++)
{

m_cAdd_Y =ADD_Y0;
m_cAdd_X =ADD_X0;
m_cDisp_sl =DISP_SL0;
m_cDisp_mod =DISP_ON;

vLCD_WR(m_cDisp_mod,m_cChip,m_cmd);
vLCD_WR(m_cDisp_sl,m_cChip,m_cmd);

for(m_Tmp=0;m_Tmp<8;m_Tmp++)
{
vLCD_WR(m_cAdd_Y,m_cChip,m_cmd);
vLCD_WR(m_cAdd_X,m_cChip,m_cmd);

for(m_cCount=0;m_cCount<64;m_cCount++)
{
vLCD_WR(*(pcChars[m_cChip]++),m_cChip,m_dat);
}
m_cAdd_X++;
}
}

while(1);

return(0);
}

这个代码却非常的快。

hiux · 发表于 2009-3-28 08:08:31

这个看起来不太像个51的程序....

Trylin · 发表于 2009-3-28 08:52:39

如果是黑白屏，1秒的速度刷屏，不大可能，除非你的主频调的很低

ifree64 · 发表于 2009-3-28 11:54:26

果然是PB0~PB2口已经接的电容影响了速度；电容大小0.47uf，时间常数RC影响了数据线上数据变化的速度，使得必须加大延时才能显示正常。

换了io口后，现在每秒能刷新30祯左右。现在是这样来写的数据，太难看了：（
#define LCD_SET_DATA(x) (PB_ODR = x&0xf0, PC_ODR=(x<<4), PE_ODR=(x&0x01))
PB口的高4位，PC的高3位，PE的第0位，凑出来一个8位并行口。

ghost2 · 发表于 2009-3-29 11:16:33

ifree64兄弟真的很快啊。
等PCB和按键确定，我就该写状态机部分了

ifree64 · 发表于 2009-3-29 20:31:40

终于调出来了任意斜率的Breseham中点法画直线的代码
#define abs(x) ((x>0)?(x):(-(x)))

void LCD_BufferDrawLine(u8 x1, u8 y1, u8 x2, u8 y2, DrawMode mode)
{
u8 x, y, t;
int dx, dy, d, incrE, incrNE;
if( y1 > y2)
{
t = x1, x1 = x2, x2 = t;
t = y1, y1 = y2, y2 = t;
}
dx = x2 - x1;
dy = y2 - y1;
x = x1, y = y1;
if( 0 == dx )
{
LCD_BufferDrawYLine(x1, y1, dy, mode);
}
else if( 0 == dy )
{
if( x1 > x2 )
LCD_BufferDrawXLine(x2, y2, dx, mode);
else
LCD_BufferDrawXLine(x1, y1, dx, mode);
}
else
{
// Bresenham Midpoint Line
if( abs(dx) > abs(dy) )
{
if( x2 > x1)
{
// 0 < k < 1
d = 2 * dy - dx;
incrE = 2 * dy;
incrNE = 2 * (dy - dx);
while( x < x2 )
{
LCD_BufferDrawPixel(x, y, mode);
x++;
if( d > 0 )
{
y++;
d += incrNE;
}
else
d += incrE;
}
LCD_BufferDrawPixel(x, y, mode);
}
else
{
// -1 < k < 0
d = -2 * dy - dx;
incrE = -2 * dy;
incrNE = -2 * (dy + dx);
while( x > x2)
{
LCD_BufferDrawPixel(x, y, mode);
x--;
if( d < 0 )
{
y++;
d += incrNE;
}
else
d += incrE;
}
LCD_BufferDrawPixel(x, y, mode);
}
}
else
{
if( x2 > x1)
{
// k > 1
d = dy - 2 * dx;
incrE = -2 * dx;
incrNE = 2 * (dy - dx);
while( y < y2 )
{
LCD_BufferDrawPixel(x, y, mode);
y++;
if( d < 0 )
{
x++;
d += incrNE;
}
else
d += incrE;
}
LCD_BufferDrawPixel(x, y, mode);
}
else
{
// k < -1
d = -dy - 2 * dx;
incrE = -2 * dx;
incrNE = -2 * (dy + dx);
while( y < y2 )
{
LCD_BufferDrawPixel(x, y, mode);
y++;
if( d > 0 )
{
x--;
d += incrNE;
}
else
d += incrE;
}
LCD_BufferDrawPixel(x, y, mode);
}
}
}
}

cctnt · 发表于 2009-3-29 22:00:30

【4楼】的代码速度

(原文件名:stm8lcd1.JPG)
修改的代码
点击此处下载 ourdev_429790.rar(文件大小:2K) (原文件名:main.rar)

修改的代码速度

(原文件名:stm8lcd2.JPG)

ifree64 · 发表于 2009-3-30 00:05:21

谢谢楼上优化后的代码，我新写的代码也直接操作寄存器，没有用固件库了。但楼上的代码在LCD上测试过吗？LCD能不能忙得过来？
我现在发现问题不是代码的速度跟不跟得上，而是LCD没有那么快。
比如，在void vLCD_WR(u_char cDatas, u_char cSl_chip, u_char cDat_type)函数里需要延时，我将时钟频率调快后，必须将延时加大才行。
不过按LCD的手册来看，E脉冲的周期1us就够了，如果按照这个来算，写192*8字节应该可以在2ms以内完成，但是好像实测达不到。

cctnt · 发表于 2009-3-30 08:40:46

我没有LCD，没有目标板，没有仿真器，只能用软件仿真一下，
图中PA_ODR[4]就是E的波形

(原文件名:stm8slcd.JPG)

studentluck · 发表于 2009-4-29 12:07:10

mark

ivws · 发表于 2009-4-29 12:29:12

记号！

lwg998 · 发表于 2009-5-2 14:42:43

12楼的你用的是什么仿真器啊

longquan · 发表于 2009-5-2 19:00:46

mark

psocfans · 发表于 2009-7-16 16:42:25

mark

cjr82123 · 发表于 2009-7-16 19:11:30

mark

zsl602 · 发表于 2009-9-19 20:16:46

记号

hais · 发表于 2009-9-28 21:28:41

这个：iostm8a.h 在哪里？

jimmyqiu · 发表于 2010-10-5 01:11:55

111111000 · 发表于 2011-1-12 19:10:27

标记一下

zhuhanliang · 发表于 2011-4-21 15:58:27

MARK

cong2010 · 发表于 2011-4-28 15:37:17

19264lcd

shunda · 发表于 2011-5-13 19:16:39

gmyu · 发表于 2011-6-17 14:06:29

关于软件，我的划线程序，改良别人的
if ( mode == Pix_CLEAR )
{for(x=x1;x<=x2;x++) LcdPixBuf[row][x] &= (~(0x80 >> offset)); }
else if ( mode == Pix_DRAW )
{for(x=x1;x<=x2;x++) LcdPixBuf[row][x] |= (0x80 >> offset); }
else // if ( mode  == Pix_XOR )
{for(x=x1;x<=x2;x++) LcdPixBuf[row][x] ^= (0x80 >> offset); }
这个for放在mode判断的后面，代码多了些，速度却快些了，不用每个位判断。

void LcdDrawLine(uint8 x1, uint8 y1, uint8 x2, uint16 y2)
{
uint16 x, y, t;
if((x1==x2)&&(y1==y2))LcdCachePix(x1, y1,Pix_DRAW);
else if(abs(y2-y1)>abs(x2-x1))//斜率大于1
{
if(y1>y2)
{
t=y1;
y1=y2;
y2=t;
t=x1;
x1=x2;
x2=t;
}
for(y=y1;y<y2;y++)//以y轴为基准
{
x=(uint16)(y-y1)*(x2-x1)/(y2-y1)+x1;
LcdCachePix((uint8)x,(uint8)y,Pix_DRAW);
}
}
else    //斜率小于等于1
{
if(x1>x2)
{
t=y1;
y1=y2;
y2=t;
t=x1;
x1=x2;
x2=t;
}
for(x=x1;x<=x2;x++)//以x轴为基准
{
y =(uint16)(x-x1)*(y2-y1)/(x2-x1)+y1;
LcdCachePix((uint8)x, (uint8)y,Pix_DRAW);
}
}
}
void LcdDrawLineH(uint8 x1, uint8 y1, uint8 x2, LcdPixMode mode)
{
byte  row,x,y;;
byte  offset;

row = y / 8;
offset  = y % 8;
if ( mode == Pix_CLEAR )
{for(x=x1;x<=x2;x++) LcdPixBuf[row][x] &= (~(0x80 >> offset)); }
else if ( mode == Pix_DRAW )
{for(x=x1;x<=x2;x++) LcdPixBuf[row][x] |= (0x80 >> offset); }
else // if ( mode  == Pix_XOR )
{for(x=x1;x<=x2;x++) LcdPixBuf[row][x] ^= (0x80 >> offset); }
}

gmyu · 发表于 2011-6-17 17:18:06

fixed小于一个字节的错误

void LcdDrawLineV(uint8 x, uint8 y, int8 len, LcdPixMode mode)
{ uint8 PixByte;
uint8 row = (y >> 3);
uint8 offset = (y & 0x07);
PixByte = 0xFF >> offset;
if (len<=(8-offset)) {
PixByte >>= (8-offset-len);
PixByte <<= (8-offset-len);
}
switch(mode){ // first column
case Pix_CLEAR:
LcdPixBuf[row][x] &= ~(PixByte);
break;
case Pix_XOR:
LcdPixBuf[row][x] ^= (PixByte);
break;
case Pix_DRAW:
LcdPixBuf[row][x] |= (PixByte);
break;
default:
break;
}
if (len<=(8-offset)) return;
row++;
len -= (8-offset);
while( len >= 8 ) //mid whole column byte
{
switch(mode){
case Pix_CLEAR:
LcdPixBuf[row][x] &= 0;
break;
case Pix_XOR:
LcdPixBuf[row][x] ^= 0xff;
break;
case Pix_DRAW:
LcdPixBuf[row][x] |= 0xff;
break;
default:
break;
}
row++;
len -= 8;
}
if(len){ // last column
switch(mode){
case Pix_CLEAR:
LcdPixBuf[row][x] &= (0xff >> len);
break;
case Pix_XOR:
LcdPixBuf[row][x] ^= ~(0xff >> len);
break;
case Pix_DRAW:
LcdPixBuf[row][x] |= ~(0xff >> len);
break;
default:
break;
}
}
}

jsbjzy · 发表于 2011-6-27 15:21:19

很有技术含量嘛，值得学习

voval · 发表于 2011-10-3 23:20:21

进来学习

huige007 · 发表于 2012-8-17 07:32:02

mark学习了

ludims · 发表于 2012-8-27 11:06:53

该帖子高质量顶上去

eryueniao · 发表于 2012-10-19 13:42:44

cool

孙尚静0.0 · 发表于 2013-9-23 18:52:29

马克马克！有机会试试，手头没有这号液晶。。。。等过几天弄而来玩玩

fengxifeng · 发表于 2013-9-29 11:05:46

学习了！顶下

dou_yuyu · 发表于 2013-12-13 07:03:27

mark。。。。画线。

zmh169 · 发表于 2013-12-13 09:05:47

支持一下，没做这块，路过

frank_88888 · 发表于 2014-10-20 10:45:43

不错，mark！

bencsj1 · 发表于 2014-10-20 11:50:40

好贴，MARK！

雨中的风铃 · 发表于 2014-10-20 12:39:56

谢谢分享！！！！！！！！！！！！！！

陈正杰 · 发表于 2015-1-20 21:40:48

学习一下正好有个项目需要这个屏

chenfzg · 发表于 2015-1-21 08:55:35

嗯嗯，参考下想移植到AVR上面

xujuanliang · 发表于 2015-1-23 16:03:28

感觉很牛B的样子

请叫我中路杀神 · 发表于 2015-1-31 21:20:53

STM8下驱动192*64 LCD

阿莫论坛20周年了！感谢大家的支持与爱护！！