LCD160160画点程序-第2页回答

LCD160160画点程序

2019-12-17 21:33发布

LCD160160画点程序-竹天笑学习笔记

黑白屏的LCD160160,驱动IC是UC1698.选择nor的第三块作为LCD的控制信号,RS用A0.

详细请看程序,本人也是新手,只想交流下,顺便交几个朋友,

黑白屏读点是需要空读一次,读两个字节,两个字节包含三个点的信息.从前到后565的分布.
写点是连续写1个半字节,包含3个点的信息,从前到后444的分布.具体请看uc1698芯片介绍.其它好像没有什么特殊之处,主要是用驱动RGB的屏来驱动黑白屏,所以可以算是原来一个点的RGB对应3个点的黑白.

下面上程序:

/* Includes ------------------------------------------------------------------*/
#include "lcd_fsmc.h"

/* Private define ------------------------------------------------------------*/
/* 使用总线方式时定义地址 */
/* 挂在不同的BANK,使用不同地址线时请自行换算地址 */
#define LCD_REG             (*((volatile u8 *) 0x68000000)) /* RS = 0 */
#define LCD_RAM             (*((volatile u8 *) 0x68000001)) /* RS = 1 */

void Delay(__IO u32 nCount)
{
for(; nCount != 0; nCount--);
}

/*******************************************************************************
* Function Name  : - FSMC_Configuration
* Description : - 静态存储器控制器配置
* Input       : - None
* Output       : - None
* Return       : - None
* Attention    : - None
*******************************************************************************/
void FSMC_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG | RCC_APB2Periph_AFIO, ENABLE);
/***************************************************************************
* Description : FSMC管脚初始化
* Attention    : ---------------------------
*                | 地址线             |
*                | PF 0~ 5 - A 0~ 5    |
*                | PF12~15 - A 6~ 9    |
*                | PG 0~ 5 - A10~15    |
*                | PD11~13 - A16~18    |
*                ---------------------------
*                | 数据线             |
*                | PD14~15 - D 0~ 1    |
*                | PD 0~ 1 - D 2~ 3    |
*                | PE 7~10 - D 4~ 7    |
*                ---------------------------
*                | 公共信号             |
*                | PD 4 - NOE          |
*                | PD 5 - NWE          |
*                | PD 6 - NWAIT - NAND512|
*                ---------------------------
*                | NOR块选择信号    |
*                | PG10 - NE3 - LCD    |
*                ---------------------------
***************************************************************************/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5//A0-A18
      | GPIO_Pin_12 | GPIO_Pin_13| GPIO_Pin_14| GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOF,&GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOG, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14 | GPIO_Pin_15 | GPIO_Pin_0 | GPIO_Pin_1;//D0-D7
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOE, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;//NOE、NWE
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//NE3，LCD
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOG, &GPIO_InitStructure);

}

/*******************************************************************************
* Function Name  : FSMC_LCD_Init
* Description : 液晶FSMC配置
* Input       : None
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void FSMC_LCD_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9; //背光和复位
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);

FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef  p;

/*-- FSMC Configuration ----------------------------------------------------*/
p.FSMC_AddressSetupTime = 1;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 12;
p.FSMC_BusTurnAroundDuration = 0;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 15;
p.FSMC_AccessMode = FSMC_AccessMode_B;

FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM3;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_8b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;

FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;

FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);

/* Enable FSMC Bank1_NOR Bank */
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM3, ENABLE);

GPIO_ResetBits(GPIOD,GPIO_Pin_8); //复位
Delay(1000);
GPIO_SetBits(GPIOD,GPIO_Pin_8);
LCD_LightOn();                   //开背光
}

/*******************************************************************************
* Function Name  : LCD_Initializtion
* Description : 液晶初始化
* Input       : None
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void LCD_Initializtion(void)
{
FSMC_Configuration();
FSMC_LCD_Init();

LCD_WriteCommand(0xE2);// -24- System Reset
LCD_WriteCommand(0xeb);// -27- Set LCD Bias Ratio  E8-EB

LCD_WriteCommand(0x81);// -11- set- Vbias potention meter
LCD_WriteCommand(0xB5);//  set  vop  0~255

LCD_WriteCommand(0xaf);// -22- power control set

LCD_WriteCommand(0x80);//  set  vop  0~255

LCD_WriteCommand(0xf4);//  set  windows programm starting  column address
LCD_WriteCommand(0x25);//  set  00
LCD_WriteCommand(0xf5);//  set  windows programm starting  row    address
LCD_WriteCommand(0x00);//  set  00
LCD_WriteCommand(0xf6);//  set  windows programm ending  column address
LCD_WriteCommand(0x5A);//  set  3x50=150
LCD_WriteCommand(0xf7);//  set  windows programm ending  row address
LCD_WriteCommand(0xa0);//  set  150

LCD_WriteCommand(0xf8);//  set windows programm mode inside mode ac3=0
LCD_WriteCommand(0xd1);//  set windows programm mode inside mode ac3=0
LCD_WriteCommand(0xd5);//  set windows programm mode inside mode ac3=0

LCD_Clear(0);
}

/*******************************************************************************
* Function Name  : LCD_LightOn
* Description : 开背光
* Input       : None
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void LCD_LightOn(void)
{
GPIO_ResetBits(GPIOD, GPIO_Pin_9);//开背光
}

/*******************************************************************************
* Function Name  : LCD_LightOff
* Description : 关背光
* Input       : None
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void LCD_LightOff(void)
{
GPIO_SetBits(GPIOD, GPIO_Pin_9);//关背光
}

/*******************************************************************************
* Function Name  : LCD_WriteCommand
* Description : Writes to the LCD REG.
* Input       : - cmd: LCD CMD.
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void LCD_WriteCommand(u8 cmd)
{
/* Write cmd */
LCD_REG = cmd;
}

/*******************************************************************************
* Function Name  : LCD_WriteData
* Description : Writes to the LCD RAM.
* Input       : - data: the pixel color in RGB mode (4-4-4).
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void LCD_WriteData(u8 data)
{
/* Write 8-bit data */
LCD_RAM = data;
}

/*******************************************************************************
* Function Name  : LCD_ReadData
* Description : Read the LCD RAM.
* Input       : None
* Output       : None
* Return       : - data: the pixel color in RGB mode (5-6-5).
* Attention    : None
*******************************************************************************/
u8 LCD_ReadData(void)
{
/* Write 8-bit data */
return LCD_RAM;
}

/*******************************************************************************
* Function Name  : LCD_Clear
* Description : 清屏
* Input       : - Color :0白屏, 1黑屏
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void LCD_Clear(u8 Color)
{
u8 row=0, col=0;
LCD_WriteCommand(0x05);//  set column adress LSB CA3 CA2 CA1 CA0  =05
LCD_WriteCommand(0x12);//  set column adress MSB CA6 CA5 =02
LCD_WriteCommand(0x60);//  set ROW adress LSB RA3 RA2 RA1 RA0  =00
LCD_WriteCommand(0x70);//  set ROW adress MSB RA7 RA6 RA5 RA4  =00

for (row=0; row<160; row++)
{
      for(col=0; col<81; col++) //
      {
         LCD_WriteData(Color); //a byte per a pixel
      }
}
}

/*******************************************************************************
* Function Name  : Disp_Point
* Description : 画点函数
* Input       : - Xpos: 水平坐标,0-159之间
*                - Ypos: 竖直坐标,0-159之间
*                - Color: 颜 {MOD},color=0为变白,color=1为变黑，color=2为反转
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void Disp_Point(u8 Xpos, u8 Ypos, u8 Color)
{
u8 Xlowpos, Xhighpos, Ylowpos, Yhighpos;
u8 Xmidpos;
u8 firstData, secondData;
u16 Data, tempData;

Ylowpos = (( 159 - Ypos ) & 0x0f ) | 0x60;
Yhighpos = (( 159 - Ypos ) >> 4 ) | 0x70;

Xmidpos = Xpos % 3;
Xpos = Xpos / 3;

Xlowpos = (( Xpos + 0x25 ) & 0x0f ) | 0x00;
Xhighpos = (( Xpos + 0x25 ) >> 4 ) | 0x10;

LCD_WriteCommand(Xlowpos);//  set column adress LSB CA3 CA2 CA1 CA0  =05
LCD_WriteCommand(Xhighpos);//  set column adress MSB CA6 CA5 =02
LCD_WriteCommand(Ylowpos);//  set ROW adress LSB RA3 RA2 RA1 RA0  =00
LCD_WriteCommand(Yhighpos);//  set ROW adress MSB RA7 RA6 RA5 RA4  =00

LCD_ReadData();
firstData = LCD_ReadData();
secondData = LCD_ReadData();
Data = ( (u16)firstData << 8 ) | ( (u16)secondData );
switch ( Xmidpos )
{
      case 0:tempData = 0xF800;break;
      case 1:tempData = 0x07E0;break;
      case 2:tempData = 0x001F;break;
      default:break;
}
switch ( Color )
{
      case 0:
      {
         Data = Data & (~tempData);
         break;
      }
      case 1:
      {
         Data = Data | tempData;
         break;
      }
      case 2:
      {
         Data = Data ^ tempData;
         break;
      }
      default:break;
}
firstData = ( (u8)(Data >> 8) & 0xf0 ) | ( (u8)(Data >> 5) & 0x0f );
secondData =  (u8)(Data << 4) & 0xf0 ;
LCD_WriteCommand(Xlowpos);//  set column adress LSB CA3 CA2 CA1 CA0  =05
LCD_WriteCommand(Xhighpos);//  set column adress MSB CA6 CA5 =02
LCD_WriteCommand(Ylowpos);//  set ROW adress LSB RA3 RA2 RA1 RA0  =00
LCD_WriteCommand(Yhighpos);//  set ROW adress MSB RA7 RA6 RA5 RA4  =00
LCD_WriteData(firstData);
LCD_WriteData(secondData);
}

/******************************************************************************
* Function Name  : LCD_DispLine
* Description : 画线 Bresenham's line algorithm
* Input       : - x0: A点行坐标
*                - y0: A点列坐标
*    - x1: B点行坐标
*    - y1: B点列坐标
*    - Color: 线颜 {MOD}
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void Disp_Line(u8 x0, u8 y0, u8 x1, u8 y1, u8 Color)
{
u8 dx, dy;    /* 定义X Y轴上增加的变量值 */
s16 temp;    /* 起点终点大小比较交换数据时的中间变量 */
u8 inc;

if ( x1 >= x0 )
{
      dx = x1 - x0;    /* X轴方向上的增量 */
}
else
{
      dx = x0 - x1;
}
if ( y1 >= y0 )
{
      dy = y1 - y0;    /* Y轴方向上的增量 */
}
else
{
      dy = y0 - y1;
}

if ( dx >= dy ) /* 靠近x轴,以x轴递增画线*/
{
      if ( x0 > x1 )
      {
         temp = x1;       /* 起点大于终点交换数据 */
      x1 = x0;
      x0 = temp;

      temp = y1;
      y1 = y0;
      y0 = temp;
      }

      if ( y0 > y1 )
      {
         inc = 0;
      }
      else
      {
         inc = 1;
      }

}
else                      /* 靠近y轴,以y轴递增画线*/
{
      if ( y0 > y1 )
      {
         temp = x1;       /* 起点大于终点交换数据 */
      x1 = x0;
      x0 = temp;

      temp = y1;
      y1 = y0;
      y0 = temp;
      }
      if ( x0 > x1 )
      {
         inc = 0;
      }
      else
      {
         inc = 1;
      }
}

if( dx == 0 )    /* X轴上没有增量画垂直线 */
{
      do
      {
         Disp_Point(x0, y0, Color); /* 逐点显示描垂直线 */
         y0++;
      }
      while( y1 >= y0 );
return;
}
if( dy == 0 )    /* Y轴上没有增量画水平直线 */
{
      do
      {
         Disp_Point(x0, y0, Color); /* 逐点显示描水平线 */
         x0++;
      }
      while( x1 >= x0 );
return;
}
/* 布兰森汉姆(Bresenham)算法画线 */
if( dx >= dy )                      /* 靠近X轴 */
{
      temp = 2 * dy - dx;             /* 计算下个点的位置 */
      while( x0 != x1 )
      {
         Disp_Point(x0, y0, Color); /* 画起点 */
         x0++;                      /* X轴上加1 */
         if( temp > 0 )             /* 判断下下个点的位置 */
         {
            if(inc==1)             /* 为右上相邻点，即（x0+1,y0+1） */
            {
                  y0++;
            }
            else
            {
                  y0--;
            }
            temp += 2 * dy - 2 * dx;
           }
         else
         {
      temp += 2 * dy;          /* 判断下下个点的位置 */
}
      }
      Disp_Point(x0, y0, Color);
}
else
{
      temp = 2 * dx - dy;                   /* 靠近Y轴 */
      while( y0 != y1 )
      {
           Disp_Point(x0, y0, Color);
         y0++;
         if( temp > 0 )
         {
            if(inc==1)             /* 为右上相邻点，即（x0+1,y0+1） */
            {
                  x0++;
            }
            else
            {
                  x0--;
            }
            temp += 2 * dx - 2 * dy;
         }
         else
{
            temp += 2 * dx;
}
      }
      Disp_Point(x0, y0, Color);
}
}

/******************************************************************************
* Function Name  : Disp_Rectangle
* Description : 画矩形
* Input       : - x0: A点行坐标
*                - y0: A点列坐标
*    - x3: D点行坐标
*    - y3: D点列坐标
*    - Color: 线颜 {MOD}
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void Disp_Rectangle(u8 x0, u8 y0, u8 x3, u8 y3, u8 Color)
{
Disp_Line(x0, y0, x0, y3, Color);
Disp_Line(x0, y3, x3, y3, Color);
Disp_Line(x3, y3, x3, y0, Color);
Disp_Line(x3, y0, x0, y0, Color);
}

#define DEG2RAD (3.1415926f / 180)
/******************************************************************************
* Function Name  : Disp_Ellipse
* Description : 画椭圆
* Input       : - xCenter: 圆心行坐标
*                - yCenter: 圆心列坐标
*    - Rx: x轴半径
*    - Ry: y轴半径
*    - Color: 线颜 {MOD}
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void Disp_Ellipse(u8 xCenter, u8 yCenter, u8 Rx, u8 Ry, u8 Color)
{
u16 t;
u8 x, y;
for ( t = 0; t < 360; t = t + 3 )                      //画120个点
{
      x = (u8)( xCenter + Rx * cos(t*DEG2RAD) + 0.5 ); //+0.5是为了四舍五入
      y = (u8)( yCenter + Ry * sin(t*DEG2RAD) + 0.5 );
      Disp_Point(x, y, Color);
}
}

/******************************************************************************
* Function Name  : Disp_Button
* Description : 画实心矩形
* Input       : - Xpos: 行坐标
*                - Ypos: 列坐标
*    - str: 字符串
*    - charColor: 字符颜 {MOD}
*    - bkColor: 背景颜 {MOD}
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void Disp_SolidRectangle(u8 x0, u8 y0, u8 x3, u8 y3, u8 Color, u8 bkColor)
{
u8 x;

if ( x0 > x3 )                         //画填充
{
      for ( x = x3 + 1; x < x0; x++ )
      {
         Disp_Line(x, y0, x ,y3, bkColor);
      }
}
else
{
      for ( x = x0 + 1; x < x3; x++ )
      {
         Disp_Line(x, y0, x ,y3, bkColor);
      }
}
Disp_Rectangle(x0, y0, x3, y3, Color);  //画外框

}

/******************************************************************************
* Function Name  : Disp_SolidEllipse
* Description : 画实心椭圆
* Input       : - Xpos: 行坐标
*                - Ypos: 列坐标
*    - str: 字符串
*    - charColor: 字符颜 {MOD}
*    - bkColor: 背景颜 {MOD}
* Output       : None
* Return       : None
* Attention    : None
*******************************************************************************/
void Disp_SolidEllipse(u8 xCenter, u8 yCenter, u8 Rx, u8 Ry, u8 Color, u8 bkColor)
{
Disp_Ellipse(xCenter,yCenter,Rx,Ry,Color);  //画外框

while ( (Rx != 0) || (Ry != 0) )
{
      Rx--;
      Ry--;
      Disp_Ellipse(xCenter,yCenter,Rx,Ry,bkColor); //填充
}
}

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