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lcd.c
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lcd.c
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#include "lcd.h"
//#include "stdlib.h"
#include "font.h"
//#include "usart.h"
//#include "delay.h"
//////////////////////////////////////////////////////////////////////////////////
//本程序只供学习使用，未经作者许可，不得用于其它任何用途
//ALIENTEK MiniSTM32F103开发板
//2.4寸/2.8寸/3.5寸/4.3寸/7寸 TFT液晶驱动
//支持驱动IC型号包括:ILI9341/ILI9325/RM68042/RM68021/ILI9320/ILI9328/LGDP4531/LGDP4535/
// SPFD5408/1505/B505/C505/NT35310/NT35510/SSD1963等
//正点原子@ALIENTEK
//技术论坛:www.openedv.com
//创建日期:2010/7/4
//版本：V3.0
//版权所有，盗版必究。
//Copyright(C) 广州市星翼电子科技有限公司 2014-2024
//All rights reserved
//********************************************************************************
//V1.2修改说明
//支持了SPFD5408的驱动,另外把液晶ID直接打印成HEX格式.方便查看LCD驱动IC.
//V1.3
//加入了快速IO的支持
//修改了背光控制的极性（适用于V1.8及以后的开发板版本）
//对于1.8版本之前(不包括1.8)的液晶模块,请修改LCD_Init函数的LCD_LED=1;为LCD_LED=1;
//V1.4
//修改了LCD_ShowChar函数 ，使用画点功能画字符。
//加入了横竖屏显示的支持
//V1.5 20110730
//1,修改了B505液晶读颜色有误的bug.
//2,修改了快速IO及横竖屏的设置方式.
//V1.6 20111116
//1,加入对LGDP4535液晶的驱动支持
//V1.7 20120713
//1,增加LCD_RD_DATA函数
//2,增加对ILI9341的支持
//3,增加ILI9325的独立驱动代码
//4,增加LCD_Scan_Dir函数(慎重使用)
//6,另外修改了部分原来的函数,以适应9341的操作
//V1.8 20120905
//1,加入LCD重要参数设置结构体lcddev
//2,加入LCD_Display_Dir函数,支持在线横竖屏切换
//V1.9 20120911
//1,新增RM68042驱动（ID:6804），但是6804不支持横屏显示！！原因：改变扫描方式，
//导致6804坐标设置失效，试过很多方法都不行，暂时无解。
//V2.0 20120924
//在不硬件复位的情况下,ILI9341的ID读取会被误读成9300,修改LCD_Init,将无法识别
//的情况（读到ID为9300/非法ID）,强制指定驱动IC为ILI9341，执行9341的初始化。
//V2.1 20120930
//修正ILI9325读颜色的bug。
//V2.2 20121007
//修正LCD_Scan_Dir的bug。
//V2.3 20130120
//新增6804支持横屏显示
//V2.4 20131120
//1,新增NT35310（ID:5310）驱动器的支持
//2,新增LCD_Set_Window函数,用于设置窗口,对快速填充,比较有用,但是该函数在横屏时,不支持6804.
//V2.5 20140211
//1,新增NT35510（ID:5510）驱动器的支持
//V2.6 20140504
//1,新增ASCII 24*24字体的支持(更多字体用户可以自行添加)
//2,修改部分函数参数,以支持MDK -O2优化
//3,针对9341/35310/35510,写时间设置为最快,尽可能的提高速度
//4,去掉了SSD1289的支持,因为1289实在是太慢了,读周期要1us...简直奇葩.不适合F4使用
//5,修正68042及C505等IC的读颜色函数的bug.
//V2.7 20140710
//1,修正LCD_Color_Fill函数的一个bug.
//2,修正LCD_Scan_Dir函数的一个bug.
//V2.8 20140721
//1,解决MDK使用-O2优化时LCD_ReadPoint函数读点失效的问题.
//2,修正LCD_Scan_Dir横屏时设置的扫描方式显示不全的bug.
//V2.9 20141130
//1,新增对SSD1963 LCD的支持.
//2,新增LCD_SSD_BackLightSet函数
//3,取消ILI93XX的Rxx寄存器定义
//V3.0 20150423
//修改SSD1963 LCD屏的驱动参数.
//////////////////////////////////////////////////////////////////////////////////
void delay_us(uint32_t nus) {
}
uint16_t POINT_COLOR = 0x0000;
uint16_t BACK_COLOR = 0xFFFF; // Background color
//管理LCD重要参数
//默认为竖屏
_lcd_dev lcddev;
//写寄存器函数
//data:寄存器值
void LCD_WR_REG(uint16_t data) {
LCD_RS_CLR; //写地址
LCD_CS_CLR;
DATAOUT(data);
LCD_WR_CLR;
LCD_WR_SET;
LCD_CS_SET;
}
//写数据函数
//可以替代LCD_WR_DATAX宏,拿时间换空间.
//data:寄存器值
void LCD_WR_DATAX(uint16_t data) {
LCD_RS_SET;
LCD_CS_CLR;
DATAOUT(data);
LCD_WR_CLR;
LCD_WR_SET;
LCD_CS_SET;
}
//读LCD数据
//返回值:读到的值
uint16_t LCD_RD_DATA(void) {
uint16_t t;
GPIOB->CRL = 0X88888888; //PB0-7 上拉输入
GPIOB->CRH = 0X88888888; //PB8-15 上拉输入
GPIOB->ODR = 0X0000; //全部输出0
LCD_RS_SET;
LCD_CS_CLR;
//读取数据(读寄存器时,并不需要读2次)
LCD_RD_CLR;
if (lcddev.id == 0X8989)
HAL_Delay(1); // delay_us(2);//FOR 8989,延时2us
t = DATAIN
;
LCD_RD_SET;
LCD_CS_SET;
GPIOB->CRL = 0X33333333; //PB0-7 上拉输出
GPIOB->CRH = 0X33333333; //PB8-15 上拉输出
GPIOB->ODR = 0XFFFF; //全部输出高
return t;
}
//写寄存器
//LCD_Reg:寄存器编号
//LCD_RegValue:要写入的值
void LCD_WriteReg(uint16_t LCD_Reg, uint16_t LCD_RegValue) {
LCD_WR_REG(LCD_Reg);
LCD_WR_DATA(LCD_RegValue);
}
//读寄存器
//LCD_Reg:寄存器编号
//返回值:读到的值
uint16_t LCD_ReadReg(uint16_t LCD_Reg) {
LCD_WR_REG(LCD_Reg); //写入要读的寄存器号
return LCD_RD_DATA();
}
//开始写GRAM
void LCD_WriteRAM_Prepare(void) {
LCD_WR_REG(lcddev.wramcmd);
}
//LCD写GRAM
//RGB_Code:颜色值
void LCD_WriteRAM(uint16_t RGB_Code) {
LCD_WR_DATA(RGB_Code); //写十六位GRAM
}
//从ILI93xx读出的数据为GBR格式，而我们写入的时候为RGB格式。
//通过该函数转换
//c:GBR格式的颜色值
//返回值：RGB格式的颜色值
uint16_t LCD_BGR2RGB(uint16_t c) {
uint16_t r, g, b, rgb;
b = (c >> 0) & 0x1f;
g = (c >> 5) & 0x3f;
r = (c >> 11) & 0x1f;
rgb = (b << 11) + (g << 5) + (r << 0);
return (rgb);
}
//当mdk -O1时间优化时需要设置
//延时i
void opt_delay(uint8_t i) {
while (i--)
;
}
//读取个某点的颜色值
//x,y:坐标
//返回值:此点的颜色
uint16_t LCD_ReadPoint(uint16_t x, uint16_t y) {
uint16_t r, g, b;
if (x >= lcddev.width || y >= lcddev.height)
return 0; //超过了范围,直接返回
LCD_SetCursor(x, y);
if (lcddev.id == 0X9341 || lcddev.id == 0X6804 || lcddev.id == 0X5310
|| lcddev.id == 0X1963)
LCD_WR_REG(0X2E); //9341/6804/3510/1963 发送读GRAM指令
else if (lcddev.id == 0X5510)
LCD_WR_REG(0X2E00); //5510 发送读GRAM指令
else
LCD_WR_REG(0X22); //其他IC发送读GRAM指令
GPIOB->CRL = 0X88888888; //PB0-7 上拉输入
GPIOB->CRH = 0X88888888; //PB8-15 上拉输入
GPIOB->ODR = 0XFFFF; //全部输出高
LCD_RS_SET;
LCD_CS_CLR;
//读取数据(读GRAM时,第一次为假读)
LCD_RD_CLR;
opt_delay(2); //延时
r = DATAIN
; //实际坐标颜色
LCD_RD_SET;
if (lcddev.id == 0X1963) {
LCD_CS_SET;
GPIOB->CRL = 0X33333333; //PB0-7 上拉输出
GPIOB->CRH = 0X33333333; //PB8-15 上拉输出
GPIOB->ODR = 0XFFFF; //全部输出高
return r; //1963直接读就可以
}
//dummy READ
LCD_RD_CLR;
opt_delay(2); //延时
r = DATAIN
; //实际坐标颜色
LCD_RD_SET;
if (lcddev.id == 0X9341 || lcddev.id == 0X5310 || lcddev.id == 0X5510)//9341/NT35310/NT35510要分2次读出
{
LCD_RD_CLR;
opt_delay(2); //延时
b = DATAIN
; //读取蓝色值
LCD_RD_SET;
g = r & 0XFF; //对于9341,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) {
LCD_RD_CLR;
LCD_RD_SET;
r = DATAIN
; //6804第二次读取的才是真实值
}
LCD_CS_SET;
GPIOB->CRL = 0X33333333; //PB0-7 上拉输出
GPIOB->CRH = 0X33333333; //PB8-15 上拉输出
GPIOB->ODR = 0XFFFF; //全部输出高
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
else if (lcddev.id == 0X9341 || lcddev.id == 0X5310 || lcddev.id == 0X5510)
return (((r >> 11) << 11) | ((g >> 10) << 5) | (b >> 11));//ILI9341/NT35310/NT35510需要公式转换一下
else
return LCD_BGR2RGB(r); //其他IC
}
//LCD开启显示
void LCD_DisplayOn(void) {
if (lcddev.id == 0X9341 || lcddev.id == 0X6804 || lcddev.id == 0X5310
|| lcddev.id == 0X1963)
LCD_WR_REG(0X29); //开启显示
else if (lcddev.id == 0X5510)
LCD_WR_REG(0X2900); //开启显示
else
LCD_WriteReg(0X07, 0x0173); //开启显示
}
//LCD关闭显示
void LCD_DisplayOff(void) {
if (lcddev.id == 0X9341 || lcddev.id == 0X6804 || lcddev.id == 0X5310
|| lcddev.id == 0X1963)
LCD_WR_REG(0X28); //关闭显示
else if (lcddev.id == 0X5510)
LCD_WR_REG(0X2800); //关闭显示
else
LCD_WriteReg(0X07, 0x0); //关闭显示
}
//设置光标位置
//Xpos:横坐标
//Ypos:纵坐标
void LCD_SetCursor(uint16_t Xpos, uint16_t Ypos) {
if (lcddev.id == 0X9341 || lcddev.id == 0X5310) {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(Xpos >> 8);
LCD_WR_DATA(Xpos & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(Ypos >> 8);
LCD_WR_DATA(Ypos & 0XFF);
} else if (lcddev.id == 0X6804) {
if (lcddev.dir == 1)
Xpos = lcddev.width - 1 - Xpos; //横屏时处理
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(Xpos >> 8);
LCD_WR_DATA(Xpos & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(Ypos >> 8);
LCD_WR_DATA(Ypos & 0XFF);
} else if (lcddev.id == 0X1963) {
if (lcddev.dir == 0) //x坐标需要变换
{
Xpos = lcddev.width - 1 - Xpos;
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(0);
LCD_WR_DATA(0);
LCD_WR_DATA(Xpos >> 8);
LCD_WR_DATA(Xpos & 0XFF);
} else {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(Xpos >> 8);
LCD_WR_DATA(Xpos & 0XFF);
LCD_WR_DATA((lcddev.width - 1) >> 8);
LCD_WR_DATA((lcddev.width - 1) & 0XFF);
}
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(Ypos >> 8);
LCD_WR_DATA(Ypos & 0XFF);
LCD_WR_DATA((lcddev.height - 1) >> 8);
LCD_WR_DATA((lcddev.height - 1) & 0XFF);
} else if (lcddev.id == 0X5510) {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(Xpos >> 8);
LCD_WR_REG(lcddev.setxcmd + 1);
LCD_WR_DATA(Xpos & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(Ypos >> 8);
LCD_WR_REG(lcddev.setycmd + 1);
LCD_WR_DATA(Ypos & 0XFF);
} else {
if (lcddev.dir == 1)
Xpos = lcddev.width - 1 - Xpos; //横屏其实就是调转x,y坐标
LCD_WriteReg(lcddev.setxcmd, Xpos);
LCD_WriteReg(lcddev.setycmd, Ypos);
}
}
//设置LCD的自动扫描方向
//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),
//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.
//dir:0~7,代表8个方向(具体定义见lcd.h)
//9320/9325/9328/4531/4535/1505/b505/5408/9341/5310/5510/1963等IC已经实际测试
void LCD_Scan_Dir(uint8_t dir) {
uint16_t regval = 0;
uint16_t dirreg = 0;
uint16_t temp;
if ((lcddev.dir == 1 && lcddev.id != 0X6804 && lcddev.id != 0X1963)
|| (lcddev.dir == 0 && lcddev.id == 0X1963))//横屏时，对6804和1963不改变扫描方向！竖屏时1963改变方向
{
switch (dir) //方向转换
{
case 0:
dir = 6;
break;
case 1:
dir = 7;
break;
case 2:
dir = 4;
break;
case 3:
dir = 5;
break;
case 4:
dir = 1;
break;
case 5:
dir = 0;
break;
case 6:
dir = 3;
break;
case 7:
dir = 2;
break;
}
}
if (lcddev.id == 0x9341 || lcddev.id == 0X6804 || lcddev.id == 0X5310
|| lcddev.id == 0X5510 || lcddev.id == 0X1963)//9341/6804/5310/5510/1963,特殊处理
{
switch (dir) {
case L2R_U2D: //从左到右,从上到下
regval |= (0 << 7) | (0 << 6) | (0 << 5);
break;
case L2R_D2U: //从左到右,从下到上
regval |= (1 << 7) | (0 << 6) | (0 << 5);
break;
case R2L_U2D: //从右到左,从上到下
regval |= (0 << 7) | (1 << 6) | (0 << 5);
break;
case R2L_D2U: //从右到左,从下到上
regval |= (1 << 7) | (1 << 6) | (0 << 5);
break;
case U2D_L2R: //从上到下,从左到右
regval |= (0 << 7) | (0 << 6) | (1 << 5);
break;
case U2D_R2L: //从上到下,从右到左
regval |= (0 << 7) | (1 << 6) | (1 << 5);
break;
case D2U_L2R: //从下到上,从左到右
regval |= (1 << 7) | (0 << 6) | (1 << 5);
break;
case D2U_R2L: //从下到上,从右到左
regval |= (1 << 7) | (1 << 6) | (1 << 5);
break;
}
if (lcddev.id == 0X5510)
dirreg = 0X3600;
else
dirreg = 0X36;
if ((lcddev.id != 0X5310) && (lcddev.id != 0X5510) && (lcddev.id != 0X1963))
regval |= 0X08; //5310/5510/1963不需要BGR
if (lcddev.id == 0X6804)
regval |= 0x02; //6804的BIT6和9341的反了
LCD_WriteReg(dirreg, regval);
if (lcddev.id != 0X1963) //1963不做坐标处理
{
if (regval & 0X20) {
if (lcddev.width < lcddev.height) //交换X,Y
{
temp = lcddev.width;
lcddev.width = lcddev.height;
lcddev.height = temp;
}
} else {
if (lcddev.width > lcddev.height) //交换X,Y
{
temp = lcddev.width;
lcddev.width = lcddev.height;
lcddev.height = temp;
}
}
}
if (lcddev.id == 0X5510) {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(0);
LCD_WR_REG(lcddev.setxcmd + 1);
LCD_WR_DATA(0);
LCD_WR_REG(lcddev.setxcmd + 2);
LCD_WR_DATA((lcddev.width - 1) >> 8);
LCD_WR_REG(lcddev.setxcmd + 3);
LCD_WR_DATA((lcddev.width - 1) & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(0);
LCD_WR_REG(lcddev.setycmd + 1);
LCD_WR_DATA(0);
LCD_WR_REG(lcddev.setycmd + 2);
LCD_WR_DATA((lcddev.height - 1) >> 8);
LCD_WR_REG(lcddev.setycmd + 3);
LCD_WR_DATA((lcddev.height - 1) & 0XFF);
} else {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(0);
LCD_WR_DATA(0);
LCD_WR_DATA((lcddev.width - 1) >> 8);
LCD_WR_DATA((lcddev.width - 1) & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(0);
LCD_WR_DATA(0);
LCD_WR_DATA((lcddev.height - 1) >> 8);
LCD_WR_DATA((lcddev.height - 1) & 0XFF);
}
} else {
switch (dir) {
case L2R_U2D: //从左到右,从上到下
regval |= (1 << 5) | (1 << 4) | (0 << 3);
break;
case L2R_D2U: //从左到右,从下到上
regval |= (0 << 5) | (1 << 4) | (0 << 3);
break;
case R2L_U2D: //从右到左,从上到下
regval |= (1 << 5) | (0 << 4) | (0 << 3);
break;
case R2L_D2U: //从右到左,从下到上
regval |= (0 << 5) | (0 << 4) | (0 << 3);
break;
case U2D_L2R: //从上到下,从左到右
regval |= (1 << 5) | (1 << 4) | (1 << 3);
break;
case U2D_R2L: //从上到下,从右到左
regval |= (1 << 5) | (0 << 4) | (1 << 3);
break;
case D2U_L2R: //从下到上,从左到右
regval |= (0 << 5) | (1 << 4) | (1 << 3);
break;
case D2U_R2L: //从下到上,从右到左
regval |= (0 << 5) | (0 << 4) | (1 << 3);
break;
}
dirreg = 0X03;
regval |= 1 << 12;
LCD_WriteReg(dirreg, regval);
}
}
//Draw a point with color
//x,y: coordinate
void LCD_DrawPoint(uint16_t x, uint16_t y) {
LCD_SetCursor(x, y);
LCD_WriteRAM_Prepare();
LCD_WR_DATA(POINT_COLOR); //POINT_COLOR: Color of this point
}
//Draw a point with color(quicker)
//x,y: coordinate
void LCD_Fast_DrawPoint(uint16_t x, uint16_t y, uint16_t color) {
if (lcddev.id == 0X9341 || lcddev.id == 0X5310) {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(x >> 8);
LCD_WR_DATA(x & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(y >> 8);
LCD_WR_DATA(y & 0XFF);
} else if (lcddev.id == 0X5510) {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(x >> 8);
LCD_WR_REG(lcddev.setxcmd + 1);
LCD_WR_DATA(x & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(y >> 8);
LCD_WR_REG(lcddev.setycmd + 1);
LCD_WR_DATA(y & 0XFF);
} else if (lcddev.id == 0X1963) {
if (lcddev.dir == 0)
x = lcddev.width - 1 - x;
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(x >> 8);
LCD_WR_DATA(x & 0XFF);
LCD_WR_DATA(x >> 8);
LCD_WR_DATA(x & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(y >> 8);
LCD_WR_DATA(y & 0XFF);
LCD_WR_DATA(y >> 8);
LCD_WR_DATA(y & 0XFF);
} else if (lcddev.id == 0X6804) {
if (lcddev.dir == 1)
x = lcddev.width - 1 - x; //横屏时处理
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(x >> 8);
LCD_WR_DATA(x & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(y >> 8);
LCD_WR_DATA(y & 0XFF);
} else {
if (lcddev.dir == 1)
x = lcddev.width - 1 - x; //横屏其实就是调转x,y坐标
LCD_WriteReg(lcddev.setxcmd, x);
LCD_WriteReg(lcddev.setycmd, y);
}
LCD_RS_CLR;
LCD_CS_CLR;
DATAOUT(lcddev.wramcmd); //写指令
LCD_WR_CLR;
LCD_WR_SET;
LCD_CS_SET;
LCD_WR_DATA(color); //写数据
}
//SSD1963 背光设置
//pwm:背光等级,0~100.越大越亮.
void LCD_SSD_BackLightSet(uint8_t pwm) {
LCD_WR_REG(0xBE); //配置PWM输出
LCD_WR_DATA(0x05); //1设置PWM频率
LCD_WR_DATA(pwm * 2.55); //2设置PWM占空比
LCD_WR_DATA(0x01); //3设置C
LCD_WR_DATA(0xFF); //4设置D
LCD_WR_DATA(0x00); //5设置E
LCD_WR_DATA(0x00); //6设置F
}
// Set LCD display direction
// dir: 0, vertical 1, horizontal
void LCD_Display_Dir(uint8_t dir) {
if (dir == 0) //竖屏
{
lcddev.dir = 0; //竖屏
lcddev.width = 240;
lcddev.height = 320;
if (lcddev.id == 0X9341 || lcddev.id == 0X6804 || lcddev.id == 0X5310) {
lcddev.wramcmd = 0X2C;
lcddev.setxcmd = 0X2A;
lcddev.setycmd = 0X2B;
if (lcddev.id == 0X6804 || lcddev.id == 0X5310) {
lcddev.width = 320;
lcddev.height = 480;
}
} else if (lcddev.id == 0x5510) {
lcddev.wramcmd = 0X2C00;
lcddev.setxcmd = 0X2A00;
lcddev.setycmd = 0X2B00;
lcddev.width = 480;
lcddev.height = 800;
} else if (lcddev.id == 0X1963) {
lcddev.wramcmd = 0X2C; //设置写入GRAM的指令
lcddev.setxcmd = 0X2B; //设置写X坐标指令
lcddev.setycmd = 0X2A; //设置写Y坐标指令
lcddev.width = 480; //设置宽度480
lcddev.height = 800; //设置高度800
} else {
lcddev.wramcmd = 0X22;
lcddev.setxcmd = 0X20;
lcddev.setycmd = 0X21;
}
} else //横屏
{
lcddev.dir = 1; //横屏
lcddev.width = 320;
lcddev.height = 240;
if (lcddev.id == 0X9341 || lcddev.id == 0X5310) {
lcddev.wramcmd = 0X2C;
lcddev.setxcmd = 0X2A;
lcddev.setycmd = 0X2B;
} else if (lcddev.id == 0X6804) {
lcddev.wramcmd = 0X2C;
lcddev.setxcmd = 0X2B;
lcddev.setycmd = 0X2A;
} else if (lcddev.id == 0x5510) {
lcddev.wramcmd = 0X2C00;
lcddev.setxcmd = 0X2A00;
lcddev.setycmd = 0X2B00;
lcddev.width = 800;
lcddev.height = 480;
} else if (lcddev.id == 0X1963) {
lcddev.wramcmd = 0X2C; //设置写入GRAM的指令
lcddev.setxcmd = 0X2A; //设置写X坐标指令
lcddev.setycmd = 0X2B; //设置写Y坐标指令
lcddev.width = 800; //设置宽度800
lcddev.height = 480; //设置高度480
} else {
lcddev.wramcmd = 0X22;
lcddev.setxcmd = 0X21;
lcddev.setycmd = 0X20;
}
if (lcddev.id == 0X6804 || lcddev.id == 0X5310) {
lcddev.width = 480;
lcddev.height = 320;
}
}
LCD_Scan_Dir(DFT_SCAN_DIR); //默认扫描方向
}
//设置窗口,并自动设置画点坐标到窗口左上角(sx,sy).
//sx,sy:窗口起始坐标(左上角)
//width,height:窗口宽度和高度,必须大于0!!
//窗体大小:width*height.
void LCD_Set_Window(uint16_t sx, uint16_t sy, uint16_t width, uint16_t height) {
uint8_t hsareg, heareg, vsareg, veareg;
uint16_t hsaval, heaval, vsaval, veaval;
uint16_t twidth, theight;
twidth = sx + width - 1;
theight = sy + height - 1;
if (lcddev.id == 0X9341 || lcddev.id == 0X5310 || lcddev.id == 0X6804
|| (lcddev.dir == 1 && lcddev.id == 0X1963)) {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(sx >> 8);
LCD_WR_DATA(sx & 0XFF);
LCD_WR_DATA(twidth >> 8);
LCD_WR_DATA(twidth & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(sy >> 8);
LCD_WR_DATA(sy & 0XFF);
LCD_WR_DATA(theight >> 8);
LCD_WR_DATA(theight & 0XFF);
} else if (lcddev.id == 0X1963) //1963竖屏特殊处理
{
sx = lcddev.width - width - sx;
height = sy + height - 1;
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(sx >> 8);
LCD_WR_DATA(sx & 0XFF);
LCD_WR_DATA((sx + width - 1) >> 8);
LCD_WR_DATA((sx + width - 1) & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(sy >> 8);
LCD_WR_DATA(sy & 0XFF);
LCD_WR_DATA(height >> 8);
LCD_WR_DATA(height & 0XFF);
} else if (lcddev.id == 0X5510) {
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(sx >> 8);
LCD_WR_REG(lcddev.setxcmd + 1);
LCD_WR_DATA(sx & 0XFF);
LCD_WR_REG(lcddev.setxcmd + 2);
LCD_WR_DATA(twidth >> 8);
LCD_WR_REG(lcddev.setxcmd + 3);
LCD_WR_DATA(twidth & 0XFF);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(sy >> 8);
LCD_WR_REG(lcddev.setycmd + 1);
LCD_WR_DATA(sy & 0XFF);
LCD_WR_REG(lcddev.setycmd + 2);
LCD_WR_DATA(theight >> 8);
LCD_WR_REG(lcddev.setycmd + 3);
LCD_WR_DATA(theight & 0XFF);
} else //其他驱动IC
{
if (lcddev.dir == 1) //横屏
{
//窗口值
hsaval = sy;
heaval = theight;
vsaval = lcddev.width - twidth - 1;
veaval = lcddev.width - sx - 1;
} else {
hsaval = sx;
heaval = twidth;
vsaval = sy;
veaval = theight;
}
hsareg = 0X50;
heareg = 0X51; //水平方向窗口寄存器
vsareg = 0X52;
veareg = 0X53; //垂直方向窗口寄存器
//设置寄存器值
LCD_WriteReg(hsareg, hsaval);
LCD_WriteReg(heareg, heaval);
LCD_WriteReg(vsareg, vsaval);
LCD_WriteReg(veareg, veaval);
LCD_SetCursor(sx, sy); //设置光标位置
}
}
//初始化lcd
//该初始化函数可以初始化各种ALIENTEK出品的LCD液晶屏
//本函数占用较大flash,用户可以根据自己的实际情况,删掉未用到的LCD初始化代码.以节省空间.
void LCD_Init(void) {
GPIO_InitTypeDef GPIO_Initure;
__HAL_RCC_GPIOB_CLK_ENABLE(); //开启GPIOB时钟
__HAL_RCC_GPIOC_CLK_ENABLE(); //开启GPIOC时钟
//PC6,7,8,9,10
GPIO_Initure.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_8 |\
GPIO_PIN_9
| GPIO_PIN_10;
GPIO_Initure.Mode = GPIO_MODE_OUTPUT_PP; //推挽输出
GPIO_Initure.Pull = GPIO_PULLUP; //上拉
GPIO_Initure.Speed = GPIO_SPEED_FREQ_HIGH; //高速
HAL_GPIO_Init(GPIOC, &GPIO_Initure);
//PB0~15
GPIO_Initure.Pin = GPIO_PIN_All; //PB推挽输出
HAL_GPIO_Init(GPIOB, &GPIO_Initure);
// __HAL_AFIO_REMAP_SWJ_DISABLE(); //禁止JTAG
HAL_Delay(50); // delay 50 ms
LCD_WriteReg(0x0000, 0x0001);
HAL_Delay(50); // delay 50 ms
lcddev.id = LCD_ReadReg(0x0000);
if (lcddev.id < 0XFF || lcddev.id == 0XFFFF || lcddev.id == 0X9300) //读到ID不正确,新增lcddev.id==0X9300判断，因为9341在未被复位的情况下会被读成9300
{
//尝试9341 ID的读取
LCD_WR_REG(0XD3);
LCD_RD_DATA(); //dummy read
LCD_RD_DATA(); //读到0X00
lcddev.id = LCD_RD_DATA(); //读取93
lcddev.id <<= 8;
lcddev.id |= LCD_RD_DATA(); //读取41
if (lcddev.id != 0X9341) //非9341,尝试是不是6804
{
LCD_WR_REG(0XBF);
LCD_RD_DATA(); //dummy read
LCD_RD_DATA(); //读回0X01
LCD_RD_DATA(); //读回0XD0
lcddev.id = LCD_RD_DATA(); //这里读回0X68
lcddev.id <<= 8;
lcddev.id |= LCD_RD_DATA(); //这里读回0X04
if (lcddev.id != 0X6804) //也不是6804,尝试看看是不是NT35310
{
LCD_WR_REG(0XD4);
LCD_RD_DATA(); //dummy read
LCD_RD_DATA(); //读回0X01
lcddev.id = LCD_RD_DATA(); //读回0X53
lcddev.id <<= 8;
lcddev.id |= LCD_RD_DATA(); //这里读回0X10
if (lcddev.id != 0X5310) //也不是NT35310,尝试看看是不是NT35510
{
LCD_WR_REG(0XDA00);
LCD_RD_DATA(); //读回0X00
LCD_WR_REG(0XDB00);
lcddev.id = LCD_RD_DATA(); //读回0X80
lcddev.id <<= 8;
LCD_WR_REG(0XDC00);
lcddev.id |= LCD_RD_DATA(); //读回0X00
if (lcddev.id == 0x8000)
lcddev.id = 0x5510; //NT35510读回的ID是8000H,为方便区分,我们强制设置为5510
if (lcddev.id != 0X5510) //也不是NT5510,尝试看看是不是SSD1963
{
LCD_WR_REG(0XA1);
lcddev.id = LCD_RD_DATA();
lcddev.id = LCD_RD_DATA(); //读回0X57
lcddev.id <<= 8;
lcddev.id |= LCD_RD_DATA(); //读回0X61
if (lcddev.id == 0X5761)
lcddev.id = 0X1963; //SSD1963读回的ID是5761H,为方便区分,我们强制设置为1963
}
}
}
}
}
// printf(" LCD ID:%x\r\n",lcddev.id); //打印LCD ID
if (lcddev.id == 0X9341) //9341初始化
{
LCD_WR_REG(0xCF);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0xC1);
LCD_WR_DATAX(0X30);
LCD_WR_REG(0xED);
LCD_WR_DATAX(0x64);
LCD_WR_DATAX(0x03);
LCD_WR_DATAX(0X12);
LCD_WR_DATAX(0X81);
LCD_WR_REG(0xE8);
LCD_WR_DATAX(0x85);
LCD_WR_DATAX(0x10);
LCD_WR_DATAX(0x7A);
LCD_WR_REG(0xCB);
LCD_WR_DATAX(0x39);
LCD_WR_DATAX(0x2C);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x34);
LCD_WR_DATAX(0x02);
LCD_WR_REG(0xF7);
LCD_WR_DATAX(0x20);
LCD_WR_REG(0xEA);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);
LCD_WR_REG(0xC0); //Power control
LCD_WR_DATAX(0x1B); //VRH[5:0]
LCD_WR_REG(0xC1); //Power control
LCD_WR_DATAX(0x01); //SAP[2:0];BT[3:0]
LCD_WR_REG(0xC5); //VCM control
LCD_WR_DATAX(0x30); //3F
LCD_WR_DATAX(0x30); //3C
LCD_WR_REG(0xC7); //VCM control2
LCD_WR_DATAX(0XB7);
LCD_WR_REG(0x36); // Memory Access Control
LCD_WR_DATAX(0x48);
LCD_WR_REG(0x3A);
LCD_WR_DATAX(0x55);
LCD_WR_REG(0xB1);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x1A);
LCD_WR_REG(0xB6); // Display Function Control
LCD_WR_DATAX(0x0A);
LCD_WR_DATAX(0xA2);
LCD_WR_REG(0xF2); // 3Gamma Function Disable
LCD_WR_DATAX(0x00);
LCD_WR_REG(0x26); //Gamma curve selected
LCD_WR_DATAX(0x01);
LCD_WR_REG(0xE0); //Set Gamma
LCD_WR_DATAX(0x0F);
LCD_WR_DATAX(0x2A);
LCD_WR_DATAX(0x28);
LCD_WR_DATAX(0x08);
LCD_WR_DATAX(0x0E);
LCD_WR_DATAX(0x08);
LCD_WR_DATAX(0x54);
LCD_WR_DATAX(0XA9);
LCD_WR_DATAX(0x43);
LCD_WR_DATAX(0x0A);
LCD_WR_DATAX(0x0F);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);
LCD_WR_REG(0XE1); //Set Gamma
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x15);
LCD_WR_DATAX(0x17);
LCD_WR_DATAX(0x07);
LCD_WR_DATAX(0x11);
LCD_WR_DATAX(0x06);
LCD_WR_DATAX(0x2B);
LCD_WR_DATAX(0x56);
LCD_WR_DATAX(0x3C);
LCD_WR_DATAX(0x05);
LCD_WR_DATAX(0x10);
LCD_WR_DATAX(0x0F);
LCD_WR_DATAX(0x3F);
LCD_WR_DATAX(0x3F);
LCD_WR_DATAX(0x0F);
LCD_WR_REG(0x2B);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x01);
LCD_WR_DATAX(0x3f);
LCD_WR_REG(0x2A);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0xef);
LCD_WR_REG(0x11); //Exit Sleep
HAL_Delay(120);
LCD_WR_REG(0x29); //display on
} else if (lcddev.id == 0x6804) //6804初始化
{
LCD_WR_REG(0X11);
HAL_Delay(20);
LCD_WR_REG(0XD0); //VCI1 VCL VGH VGL DDVDH VREG1OUT power amplitude setting
LCD_WR_DATAX(0X07);
LCD_WR_DATAX(0X42);
LCD_WR_DATAX(0X1D);
LCD_WR_REG(0XD1); //VCOMH VCOM_AC amplitude setting
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X1a);
LCD_WR_DATAX(0X09);
LCD_WR_REG(0XD2); //Operational Amplifier Circuit Constant Current Adjust , charge pump frequency setting
LCD_WR_DATAX(0X01);
LCD_WR_DATAX(0X22);
LCD_WR_REG(0XC0); //REV SM GS
LCD_WR_DATAX(0X10);
LCD_WR_DATAX(0X3B);
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X02);
LCD_WR_DATAX(0X11);
LCD_WR_REG(0XC5); // Frame rate setting = 72HZ when setting 0x03
LCD_WR_DATAX(0X03);
LCD_WR_REG(0XC8); //Gamma setting
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X25);
LCD_WR_DATAX(0X21);
LCD_WR_DATAX(0X05);
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X0a);
LCD_WR_DATAX(0X65);
LCD_WR_DATAX(0X25);
LCD_WR_DATAX(0X77);
LCD_WR_DATAX(0X50);
LCD_WR_DATAX(0X0f);
LCD_WR_DATAX(0X00);
LCD_WR_REG(0XF8);
LCD_WR_DATAX(0X01);
LCD_WR_REG(0XFE);
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X02);
LCD_WR_REG(0X20); //Exit invert mode
LCD_WR_REG(0X36);
LCD_WR_DATAX(0X08); //原来是a
LCD_WR_REG(0X3A);
LCD_WR_DATAX(0X55); //16位模式
LCD_WR_REG(0X2B);
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X01);
LCD_WR_DATAX(0X3F);
LCD_WR_REG(0X2A);
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X00);
LCD_WR_DATAX(0X01);
LCD_WR_DATAX(0XDF);
HAL_Delay(120);
LCD_WR_REG(0X29);
} else if (lcddev.id == 0x5310) {
LCD_WR_REG(0xED);
LCD_WR_DATAX(0x01);
LCD_WR_DATAX(0xFE);
LCD_WR_REG(0xEE);
LCD_WR_DATAX(0xDE);
LCD_WR_DATAX(0x21);
LCD_WR_REG(0xF1);
LCD_WR_DATAX(0x01);
LCD_WR_REG(0xDF);
LCD_WR_DATAX(0x10);
//VCOMvoltage//
LCD_WR_REG(0xC4);
LCD_WR_DATAX(0x8F); //5f
LCD_WR_REG(0xC6);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0xE2);
LCD_WR_DATAX(0xE2);
LCD_WR_DATAX(0xE2);
LCD_WR_REG(0xBF);
LCD_WR_DATAX(0xAA);
LCD_WR_REG(0xB0);
LCD_WR_DATAX(0x0D);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x0D);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x11);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x19);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x21);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x2D);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x3D);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x5D);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x5D);
LCD_WR_DATAX(0x00);
LCD_WR_REG(0xB1);
LCD_WR_DATAX(0x80);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x8B);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x96);
LCD_WR_DATAX(0x00);
LCD_WR_REG(0xB2);
LCD_WR_DATAX(0x00);
LCD_WR_DATAX(0x00);