592 lines
14 KiB
C
592 lines
14 KiB
C
/*
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* lcd.c
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*
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* Created on: Mar 11, 2021
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* Author: 13370
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*/
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#include "lcd.h"
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_lcd_dev lcddev; //管理LCD重要参数
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//**************************************************几种快速接口
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//写寄存器函数
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//regval:寄存器值
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void LCD_WR_REG(uint16_t regval)
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{
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LCD_REG_ADDRESS=regval;//写入要写的寄存器序号
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}
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//写LCD数据
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//data:要写入的值
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void LCD_WR_DATA(uint16_t data)
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{
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LCD_DATA_ADDRESS=data;
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}
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//读LCD数据
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//返回值:读到的值
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uint16_t LCD_RD_DATA(void)
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{
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return LCD_DATA_ADDRESS;
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}
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//写寄存器
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//LCD_Reg:寄存器地址
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//LCD_RegValue:要写入的数据
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void LCD_WriteReg(uint16_t LCD_Reg, uint16_t LCD_RegValue)
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{
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LCD_REG_ADDRESS = LCD_Reg; //写入要写的寄存器序号
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LCD_DATA_ADDRESS = LCD_RegValue;//写入数据
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}
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//读寄存器
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//LCD_Reg:寄存器地址
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//返回值:读到的数据
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uint16_t LCD_ReadReg(uint16_t LCD_Reg)
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{
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LCD_REG_ADDRESS=LCD_Reg; //写入要读的寄存器序号
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//delay_us(5);
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return LCD_DATA_ADDRESS; //返回读到的值
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}
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//**************************************************************LCD底层
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_lcd_dev lcddev;
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//LCD开启显示
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void LCD_DisplayOn(void)
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{
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if(lcddev.id==0X9341||lcddev.id==0X6804||lcddev.id==0X5310)LCD_WR_REG(0X29); //开启显示
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else LCD_WriteReg(R7,0x0173); //开启显示
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}
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//LCD关闭显示
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void LCD_DisplayOff(void)
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{
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if(lcddev.id==0X9341||lcddev.id==0X6804||lcddev.id==0X5310)LCD_WR_REG(0X28); //关闭显示
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else LCD_WriteReg(R7,0x0);//关闭显示
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}
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//设置LCD的自动扫描方向
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//注意:其他函数可能会受到此函数设置的影响(尤其是9341/6804这两个奇葩),
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//所以,一般设置为L2R_U2D即可,如果设置为其他扫描方式,可能导致显示不正常.
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//dir:0~7,代表8个方向(具体定义见lcd.h)
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//9320/9325/9328/4531/4535/1505/b505/8989/5408/9341/5310等IC已经实际测试
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void LCD_Scan_Dir(uint8_t dir)
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{
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uint16_t regval=0;
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uint8_t dirreg=0;
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uint16_t temp;
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if(lcddev.dir==1&&lcddev.id!=0X6804)//横屏时，对6804不改变扫描方向！
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{
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switch(dir)//方向转换
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{
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case 0:dir=6;break;
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case 1:dir=7;break;
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case 2:dir=4;break;
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case 3:dir=5;break;
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case 4:dir=1;break;
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case 5:dir=0;break;
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case 6:dir=3;break;
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case 7:dir=2;break;
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}
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}
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if(lcddev.id==0x9341||lcddev.id==0X6804||lcddev.id==0X5310)//9341/6804/5310,很特殊
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{
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switch(dir)
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{
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case L2R_U2D://从左到右,从上到下
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regval|=(0<<7)|(0<<6)|(0<<5);
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break;
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case L2R_D2U://从左到右,从下到上
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regval|=(1<<7)|(0<<6)|(0<<5);
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break;
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case R2L_U2D://从右到左,从上到下
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regval|=(0<<7)|(1<<6)|(0<<5);
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break;
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case R2L_D2U://从右到左,从下到上
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regval|=(1<<7)|(1<<6)|(0<<5);
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break;
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case U2D_L2R://从上到下,从左到右
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regval|=(0<<7)|(0<<6)|(1<<5);
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break;
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case U2D_R2L://从上到下,从右到左
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regval|=(0<<7)|(1<<6)|(1<<5);
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break;
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case D2U_L2R://从下到上,从左到右
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regval|=(1<<7)|(0<<6)|(1<<5);
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break;
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case D2U_R2L://从下到上,从右到左
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regval|=(1<<7)|(1<<6)|(1<<5);
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break;
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}
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dirreg=0X36;
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if(lcddev.id!=0X5310)regval|=0X08;//5310不需要BGR
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if(lcddev.id==0X6804)regval|=0x02;//6804的BIT6和9341的反了
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LCD_WriteReg(dirreg,regval);
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if((regval&0X20)||lcddev.dir==1)
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{
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if(lcddev.width<lcddev.height)//交换X,Y
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{
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temp=lcddev.width;
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lcddev.width=lcddev.height;
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lcddev.height=temp;
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}
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}else
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{
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if(lcddev.width>lcddev.height)//交换X,Y
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{
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temp=lcddev.width;
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lcddev.width=lcddev.height;
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lcddev.height=temp;
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}
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}
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LCD_WR_REG(lcddev.setxcmd);
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LCD_WR_DATA(0);LCD_WR_DATA(0);
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LCD_WR_DATA((lcddev.width-1)>>8);LCD_WR_DATA((lcddev.width-1)&0XFF);
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LCD_WR_REG(lcddev.setycmd);
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LCD_WR_DATA(0);LCD_WR_DATA(0);
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LCD_WR_DATA((lcddev.height-1)>>8);LCD_WR_DATA((lcddev.height-1)&0XFF);
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}else
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{
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switch(dir)
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{
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case L2R_U2D://从左到右,从上到下
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regval|=(1<<5)|(1<<4)|(0<<3);
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break;
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case L2R_D2U://从左到右,从下到上
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regval|=(0<<5)|(1<<4)|(0<<3);
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break;
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case R2L_U2D://从右到左,从上到下
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regval|=(1<<5)|(0<<4)|(0<<3);
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break;
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case R2L_D2U://从右到左,从下到上
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regval|=(0<<5)|(0<<4)|(0<<3);
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break;
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case U2D_L2R://从上到下,从左到右
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regval|=(1<<5)|(1<<4)|(1<<3);
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break;
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case U2D_R2L://从上到下,从右到左
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regval|=(1<<5)|(0<<4)|(1<<3);
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break;
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case D2U_L2R://从下到上,从左到右
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regval|=(0<<5)|(1<<4)|(1<<3);
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break;
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case D2U_R2L://从下到上,从右到左
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regval|=(0<<5)|(0<<4)|(1<<3);
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break;
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}
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if(lcddev.id==0x8989)//8989 IC
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{
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dirreg=0X11;
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regval|=0X6040; //65K
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}else//其他驱动IC
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{
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dirreg=0X03;
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regval|=1<<12;
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}
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LCD_WriteReg(dirreg,regval);
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}
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}
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//设置LCD显示方向
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//dir:0,竖屏；1,横屏
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void LCD_Display_Dir(uint8_t dir)
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{
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if(dir==0) //竖屏
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{
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lcddev.dir=0; //竖屏
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lcddev.width=240;
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lcddev.height=320;
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if(lcddev.id==0X9341||lcddev.id==0X6804||lcddev.id==0X5310)
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{
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lcddev.wramcmd=0X2C;
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lcddev.setxcmd=0X2A;
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lcddev.setycmd=0X2B;
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if(lcddev.id==0X6804||lcddev.id==0X5310)
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{
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lcddev.width=320;
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lcddev.height=480;
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}
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}else if(lcddev.id==0X8989)
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{
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lcddev.wramcmd=R34;
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lcddev.setxcmd=0X4E;
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lcddev.setycmd=0X4F;
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}else
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{
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lcddev.wramcmd=R34;
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lcddev.setxcmd=R32;
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lcddev.setycmd=R33;
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}
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}else //横屏
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{
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lcddev.dir=1; //横屏
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lcddev.width=320;
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lcddev.height=240;
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if(lcddev.id==0X9341||lcddev.id==0X5310)
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{
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lcddev.wramcmd=0X2C;
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lcddev.setxcmd=0X2A;
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lcddev.setycmd=0X2B;
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}else if(lcddev.id==0X6804)
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{
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lcddev.wramcmd=0X2C;
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lcddev.setxcmd=0X2B;
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lcddev.setycmd=0X2A;
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}else if(lcddev.id==0X8989)
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{
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lcddev.wramcmd=R34;
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lcddev.setxcmd=0X4F;
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lcddev.setycmd=0X4E;
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}else
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{
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lcddev.wramcmd=R34;
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lcddev.setxcmd=R33;
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lcddev.setycmd=R32;
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}
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if(lcddev.id==0X6804||lcddev.id==0X5310)
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{
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lcddev.width=480;
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lcddev.height=320;
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}
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}
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LCD_Scan_Dir(DFT_SCAN_DIR); //默认扫描方向
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}
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//初始化lcd
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//该初始化函数可以初始化各种液晶!
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void LCDx_Init(void)
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{
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LCD_BL(0);
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HAL_Delay(50); // delay 50 ms
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LCD_WriteReg(0x0000,0x0001);
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HAL_Delay(50); // delay 50 ms
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lcddev.id = LCD_ReadReg(0x0000);
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LCD_WriteReg(0x00E5,0x78F0);
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LCD_WriteReg(0x0001,0x0100);
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LCD_WriteReg(0x0002,0x0700);
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LCD_WriteReg(0x0003,0x1030);
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LCD_WriteReg(0x0004,0x0000);
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LCD_WriteReg(0x0008,0x0202);
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LCD_WriteReg(0x0009,0x0000);
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LCD_WriteReg(0x000A,0x0000);
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LCD_WriteReg(0x000C,0x0000);
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LCD_WriteReg(0x000D,0x0000);
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LCD_WriteReg(0x000F,0x0000);
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//power on sequence VGHVGL
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LCD_WriteReg(0x0010,0x0000);
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LCD_WriteReg(0x0011,0x0007);
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LCD_WriteReg(0x0012,0x0000);
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LCD_WriteReg(0x0013,0x0000);
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LCD_WriteReg(0x0007,0x0000);
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//vgh
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LCD_WriteReg(0x0010,0x1690);
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LCD_WriteReg(0x0011,0x0227);
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//delayms(100);
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//vregiout
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LCD_WriteReg(0x0012,0x009D); //0x001b
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//delayms(100);
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//vom amplitude
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LCD_WriteReg(0x0013,0x1900);
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//delayms(100);
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//vom H
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LCD_WriteReg(0x0029,0x0025);
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LCD_WriteReg(0x002B,0x000D);
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//gamma
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LCD_WriteReg(0x0030,0x0007);
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LCD_WriteReg(0x0031,0x0303);
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LCD_WriteReg(0x0032,0x0003);// 0006
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LCD_WriteReg(0x0035,0x0206);
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LCD_WriteReg(0x0036,0x0008);
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LCD_WriteReg(0x0037,0x0406);
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LCD_WriteReg(0x0038,0x0304);//0200
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LCD_WriteReg(0x0039,0x0007);
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LCD_WriteReg(0x003C,0x0602);// 0504
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LCD_WriteReg(0x003D,0x0008);
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//ram
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LCD_WriteReg(0x0050,0x0000);
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LCD_WriteReg(0x0051,0x00EF);
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LCD_WriteReg(0x0052,0x0000);
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LCD_WriteReg(0x0053,0x013F);
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LCD_WriteReg(0x0060,0xA700);
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LCD_WriteReg(0x0061,0x0001);
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LCD_WriteReg(0x006A,0x0000);
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//
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LCD_WriteReg(0x0080,0x0000);
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LCD_WriteReg(0x0081,0x0000);
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LCD_WriteReg(0x0082,0x0000);
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LCD_WriteReg(0x0083,0x0000);
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LCD_WriteReg(0x0084,0x0000);
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LCD_WriteReg(0x0085,0x0000);
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//
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LCD_WriteReg(0x0090,0x0010);
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LCD_WriteReg(0x0092,0x0600);
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LCD_WriteReg(0x0007,0x0133);
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LCD_WriteReg(0x00,0x0022);//
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LCD_Display_Dir(1); //默认为h屏
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}
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//***********************************************************打点 读点 什么的
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//设置光标位置
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//Xpos:横坐标
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//Ypos:纵坐标
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void LCD_SetCursor(uint16_t Xpos, uint16_t Ypos)
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{
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if(lcddev.id==0X9341||lcddev.id==0X5310)
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{
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LCD_WR_REG(lcddev.setxcmd);
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LCD_WR_DATA(Xpos>>8);
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LCD_WR_DATA(Xpos&0XFF);
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LCD_WR_REG(lcddev.setycmd);
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LCD_WR_DATA(Ypos>>8);
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LCD_WR_DATA(Ypos&0XFF);
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}else if(lcddev.id==0X6804)
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{
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if(lcddev.dir==1)Xpos=lcddev.width-1-Xpos;//横屏时处理
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LCD_WR_REG(lcddev.setxcmd);
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LCD_WR_DATA(Xpos>>8);
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LCD_WR_DATA(Xpos&0XFF);
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LCD_WR_REG(lcddev.setycmd);
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LCD_WR_DATA(Ypos>>8);
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LCD_WR_DATA(Ypos&0XFF);
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}else
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{
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if(lcddev.dir==1)Xpos=lcddev.width-1-Xpos;//横屏其实就是调转x,y坐标
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LCD_WriteReg(lcddev.setxcmd, Xpos);
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LCD_WriteReg(lcddev.setycmd, Ypos);
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}
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}
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//快速画点
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//x,y:坐标
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//color:颜色
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void LCD_Fast_DrawPoint(uint16_t x,uint16_t y,uint16_t color)
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{
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if(lcddev.id==0X9341||lcddev.id==0X5310)
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{
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LCD_WR_REG(lcddev.setxcmd);
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LCD_WR_DATA(x>>8);
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LCD_WR_DATA(x&0XFF);
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LCD_WR_REG(lcddev.setycmd);
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LCD_WR_DATA(y>>8);
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LCD_WR_DATA(y&0XFF);
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}else if(lcddev.id==0X6804)
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{
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if(lcddev.dir==1)x=lcddev.width-1-x;//横屏时处理
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LCD_WR_REG(lcddev.setxcmd);
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LCD_WR_DATA(x>>8);
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LCD_WR_DATA(x&0XFF);
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LCD_WR_REG(lcddev.setycmd);
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LCD_WR_DATA(y>>8);
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LCD_WR_DATA(y&0XFF);
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}else
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{
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if(lcddev.dir==1)x=lcddev.width-1-x;//横屏其实就是调转x,y坐标
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LCD_WriteReg(lcddev.setxcmd,x);
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LCD_WriteReg(lcddev.setycmd,y);
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}
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LCD_REG_ADDRESS=lcddev.wramcmd;
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LCD_DATA_ADDRESS=color;
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}
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//画点
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//x,y:坐标
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//POINT_COLOR:此点的颜色
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void LCD_set_dot(uint16_t x,uint16_t y,uint16_t color)
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{
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LCD_SetCursor(x,y); //设置光标位置
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LCD_REG_ADDRESS=lcddev.wramcmd; //开始写入GRAM
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LCD_DATA_ADDRESS=color;
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}
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//清屏函数
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//color:要清屏的填充色
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void LCD_Clear(uint16_t color)
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{
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uint32_t index=0;
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uint32_t totalpoint=lcddev.width;
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totalpoint*=lcddev.height; //得到总点数
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if((lcddev.id==0X6804)&&(lcddev.dir==1))//6804横屏的时候特殊处理
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{
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lcddev.dir=0;
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lcddev.setxcmd=0X2A;
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lcddev.setycmd=0X2B;
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LCD_SetCursor(0x00,0x0000); //设置光标位置
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lcddev.dir=1;
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lcddev.setxcmd=0X2B;
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lcddev.setycmd=0X2A;
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}else LCD_SetCursor(0x00,0x0000); //设置光标位置
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LCD_REG_ADDRESS=lcddev.wramcmd; //开始写入GRAM
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for(index=0;index<totalpoint;index++)
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{
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LCD_DATA_ADDRESS=color;
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}
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}
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//在指定区域内填充单个颜色
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//(sx,sy),(ex,ey):填充矩形对角坐标,区域大小为:(ex-sx+1)*(ey-sy+1)
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//color:要填充的颜色
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void LCD_Fill(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey,uint16_t color)
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{
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uint16_t i,j;
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uint16_t xlen=0;
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uint16_t temp;
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if((lcddev.id==0X6804)&&(lcddev.dir==1)) //6804横屏的时候特殊处理
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{
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temp=sx;
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sx=sy;
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sy=lcddev.width-ex-1;
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ex=ey;
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ey=lcddev.width-temp-1;
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lcddev.dir=0;
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lcddev.setxcmd=0X2A;
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lcddev.setycmd=0X2B;
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LCD_Fill(sx,sy,ex,ey,color);
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lcddev.dir=1;
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lcddev.setxcmd=0X2B;
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lcddev.setycmd=0X2A;
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}else
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{
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xlen=ex-sx+1;
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for(i=sy;i<=ey;i++)
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{
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LCD_SetCursor(sx,i); //设置光标位置
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LCD_REG_ADDRESS=lcddev.wramcmd; //开始写入GRAM
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for(j=0;j<xlen;j++)LCD_WR_DATA(color); //设置光标位置
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}
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}
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}
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//在指定区域内填充指定颜色块
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//(sx,sy),(ex,ey):填充矩形对角坐标,区域大小为:(ex-sx+1)*(ey-sy+1)
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//color:要填充的颜色
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void LCD_Color_Fill(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey,const uint16_t *color)
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{
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uint16_t height,width;
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uint16_t i,j;
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width=ex-sx; //得到填充的宽度
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height=ey-sy; //高度
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for(i=0;i<height;i++)
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{
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LCD_SetCursor(sx,sy+i); //设置光标位置
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LCD_REG_ADDRESS=lcddev.wramcmd; //开始写入GRAM
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for(j=0;j<width;j++)
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{
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LCD_DATA_ADDRESS=color[(i*width)+j];//HAL_Delay(10);//写入数据
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}
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}
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}
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//从ILI93xx读出的数据为GBR格式，而我们写入的时候为RGB格式。
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//通过该函数转换
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//c:GBR格式的颜色值
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//返回值：RGB格式的颜色值
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uint16_t LCD_BGR2RGB(uint16_t c)
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|
{
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|
uint16_t r,g,b,rgb;
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b=(c>>0)&0x1f;
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g=(c>>5)&0x3f;
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r=(c>>11)&0x1f;
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rgb=(b<<11)+(g<<5)+(r<<0);
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return(rgb);
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}
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//读取个某点的颜色值
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|
//x,y:坐标
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//返回值:此点的颜色
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uint16_t LCD_ReadPoint(uint16_t x,uint16_t y)
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|
{
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|
uint16_t r=0,g=0,b=0;
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if(x>=lcddev.width||y>=lcddev.height)return 0; //超过了范围,直接返回
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LCD_SetCursor(x,y);
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if(lcddev.id==0X9341||lcddev.id==0X6804||lcddev.id==0X5310)LCD_WR_REG(0X2E);//9341/6804/3510 发送读GRAM指令
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else LCD_WR_REG(R34); //其他IC发送读GRAM指令
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|
//if(lcddev.id==0X9320)opt_delay(2); //FOR 9320,延时2us
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if(LCD_DATA_ADDRESS)r=0; //dummy Read
|
|
//opt_delay(2);
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|
r=LCD_DATA_ADDRESS; //实际坐标颜色
|
|
if(lcddev.id==0X9341||lcddev.id==0X5310) //9341/NT35310要分2次读出
|
|
{
|
|
//opt_delay(2);
|
|
b=LCD_DATA_ADDRESS;
|
|
g=r&0XFF;//对于9341/5310,第一次读取的是RG的值,R在前,G在后,各占8位
|
|
g<<=8;
|
|
}else if(lcddev.id==0X6804)r=LCD_DATA_ADDRESS; //6804第二次读取的才是真实值
|
|
if(lcddev.id==0X9325||lcddev.id==0X4535||lcddev.id==0X4531||lcddev.id==0X8989||lcddev.id==0XB505)return r;//这几种IC直接返回颜色值
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|
else if(lcddev.id==0X9341||lcddev.id==0X5310)return (((r>>11)<<11)|((g>>10)<<5)|(b>>11)); //ILI9341/NT35310需要公式转换一下
|
|
else return LCD_BGR2RGB(r); //其他IC
|
|
}
|
|
|
|
|
|
//***********************************2D
|
|
//画线
|
|
//x1,y1:起点坐标
|
|
//x2,y2:终点坐标
|
|
void LCD_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2,uint16_t color)
|
|
{
|
|
uint16_t t;
|
|
int xerr=0,yerr=0,delta_x,delta_y,distance;
|
|
int incx,incy,uRow,uCol;
|
|
delta_x=x2-x1; //计算坐标增量
|
|
delta_y=y2-y1;
|
|
uRow=x1;
|
|
uCol=y1;
|
|
if(delta_x>0)incx=1; //设置单步方向
|
|
else if(delta_x==0)incx=0;//垂直线
|
|
else {incx=-1;delta_x=-delta_x;}
|
|
if(delta_y>0)incy=1;
|
|
else if(delta_y==0)incy=0;//水平线
|
|
else{incy=-1;delta_y=-delta_y;}
|
|
if( delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴
|
|
else distance=delta_y;
|
|
for(t=0;t<=distance+1;t++ )//画线输出
|
|
{
|
|
LCD_set_dot(uRow,uCol,color);//画点
|
|
xerr+=delta_x ;
|
|
yerr+=delta_y ;
|
|
if(xerr>distance)
|
|
{
|
|
xerr-=distance;
|
|
uRow+=incx;
|
|
}
|
|
if(yerr>distance)
|
|
{
|
|
yerr-=distance;
|
|
uCol+=incy;
|
|
}
|
|
}
|
|
}
|
|
|
|
//在指定位置画一个指定大小的圆
|
|
//(x,y):中心点
|
|
//r :半径
|
|
void Draw_Circle(uint16_t x0,uint16_t y0,uint16_t r,uint16_t color)
|
|
{
|
|
int a,b;
|
|
int di;
|
|
a=0;b=r;
|
|
di=3-(r<<1); //判断下个点位置的标志
|
|
while(a<=b)
|
|
{
|
|
LCD_set_dot(x0+a,y0-b,color); //5
|
|
LCD_set_dot(x0+b,y0-a,color); //0
|
|
LCD_set_dot(x0+b,y0+a,color); //4
|
|
LCD_set_dot(x0+a,y0+b,color); //6
|
|
LCD_set_dot(x0-a,y0+b,color); //1
|
|
LCD_set_dot(x0-b,y0+a,color);
|
|
LCD_set_dot(x0-a,y0-b,color); //2
|
|
LCD_set_dot(x0-b,y0-a,color); //7
|
|
a++;
|
|
//使用Bresenham算法画圆
|
|
if(di<0)di +=4*a+6;
|
|
else
|
|
{
|
|
di+=10+4*(a-b);
|
|
b--;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
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