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1、我本人使用是野火STM32指南者开发板。
2、LCD为ILI9341，3.2英寸屏幕，分辨率320*240.
3、了解8080时序通信原理，及学会使用LCD液晶屏。
4、本次实验可能是由于硬件原因设计原因吧，数据线上没有上拉电阻，当读取LCD屏发来的数据时，数据端口配置上拉输入或下拉输入均读取数据异常，本次我配置为浮空输入就没有问题，另外数据端口配置为开漏模式也是可以的。
5、本次用到的数据线为16条，对应的端口为Proc_D、Proc_E
6、本次用到的纳秒延迟是不精确的大概125纳秒吧，也是尽量小，但不能太小要满足通信要求。
7、现场图片后面在添加，反正后面还需要加入字符串的输出显示。
8、感觉不错的可以点赞关注一下哈，感谢！
main.c
#include "stm32f10x.h"
#include "stdio.h"
#include "./usart/usart.h"
#include "./ili9341/ili9341.h"
uint16_t buff[200*150];
int main(void)
{
usart_init_config();//串口初始化
LCD_init_config();//初始化lcd液晶屏
Read_LCD_REG(LCD_Read_Pixel_Cmd,buff);//读取显示点格式
printf("\r\nbuff=%x",buff[1]);
Read_LCD_REG(LCD_Read_ID_Cmd,buff);//读取id值
printf("\r\nbuff=%x",buff[1]);
printf("\r\nbuff=%x",buff[2]);
printf("\r\nbuff=%x",buff[3]);
LCD_Fill_Color(0,0,LCD_SCREEN_XRES,30,buff,LCD_RED);
while(1);
}
ILI9341.C
//作者：金丝草
#include "./ili9341/ili9341.h"
static LCD_Data_Union LCD_Data;//lcd输入输出数据
static LCD_Port_Union Port_D;//lcd数据引脚对应端口D
static LCD_Port_Union Port_E;//lcd数据引脚对应端口E
static void LCD_GPIO_init_config(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
//打开GPIO外设时钟
LCD_All_GPIO_Clk_EN(LCD_RCC_Periph_GPIOD_Clk,ENABLE);
LCD_All_GPIO_Clk_EN(LCD_RCC_Periph_GPIOE_Clk,ENABLE);
//配置GPIO_Data
GPIO_InitStruct.GPIO_Mode =GPIO_Mode_Out_PP;//推挽输出
GPIO_InitStruct.GPIO_Speed =GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin =LCD_Data0_Pin;
GPIO_Init(LCD_Data0_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data1_Pin;
GPIO_Init(LCD_Data1_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data2_Pin;
GPIO_Init(LCD_Data2_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data3_Pin;
GPIO_Init(LCD_Data3_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data4_Pin;
GPIO_Init(LCD_Data4_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data5_Pin;
GPIO_Init(LCD_Data5_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data6_Pin;
GPIO_Init(LCD_Data6_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data7_Pin;
GPIO_Init(LCD_Data7_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data8_Pin;
GPIO_Init(LCD_Data8_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data9_Pin;
GPIO_Init(LCD_Data9_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data10_Pin;
GPIO_Init(LCD_Data10_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data11_Pin;
GPIO_Init(LCD_Data11_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data12_Pin;
GPIO_Init(LCD_Data12_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data13_Pin;
GPIO_Init(LCD_Data13_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data14_Pin;
GPIO_Init(LCD_Data14_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data15_Pin;
GPIO_Init(LCD_Data15_Port,&GPIO_InitStruct);
//配置复位引脚
GPIO_InitStruct.GPIO_Mode =GPIO_Mode_Out_PP;//推挽输出
GPIO_InitStruct.GPIO_Speed =GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin =LCD_Reset_Pin;
GPIO_Init(LCD_Reset_Port,&GPIO_InitStruct);
//配置背光引脚
GPIO_InitStruct.GPIO_Pin =LCD_BLK_Pin;
GPIO_Init(LCD_BLK_Port,&GPIO_InitStruct);
//配置片选引脚
GPIO_InitStruct.GPIO_Pin =LCD_CS_Pin;
GPIO_Init(LCD_CS_Port,&GPIO_InitStruct);
//配置读取引脚
GPIO_InitStruct.GPIO_Pin =LCD_Read_Pin;
GPIO_Init(LCD_Read_Port,&GPIO_InitStruct);
//配置写入引脚
GPIO_InitStruct.GPIO_Pin =LCD_Write_Pin;
GPIO_Init(LCD_Write_Port,&GPIO_InitStruct);
//配置命令数据引脚
GPIO_InitStruct.GPIO_Pin =LCD_RS_Pin;
GPIO_Init(LCD_RS_Port,&GPIO_InitStruct);
}
static void Write_Data(uint16_t data_)
{
LCD_Data.Data_16_bits = data_;
#if 0
if(LCD_Data.bits.bit0) GPIO_SetBits(LCD_Data0_Port,LCD_Data0_Pin);
else GPIO_ResetBits(LCD_Data0_Port,LCD_Data0_Pin);
if(LCD_Data.bits.bit1) GPIO_SetBits(LCD_Data1_Port,LCD_Data1_Pin);
else GPIO_ResetBits(LCD_Data1_Port,LCD_Data1_Pin);
if(LCD_Data.bits.bit2) GPIO_SetBits(LCD_Data2_Port,LCD_Data2_Pin);
else GPIO_ResetBits(LCD_Data2_Port,LCD_Data2_Pin);
if(LCD_Data.bits.bit3) GPIO_SetBits(LCD_Data3_Port,LCD_Data3_Pin);
else GPIO_ResetBits(LCD_Data3_Port,LCD_Data3_Pin);
if(LCD_Data.bits.bit4) GPIO_SetBits(LCD_Data4_Port,LCD_Data4_Pin);
else GPIO_ResetBits(LCD_Data4_Port,LCD_Data4_Pin);
if(LCD_Data.bits.bit5) GPIO_SetBits(LCD_Data5_Port,LCD_Data5_Pin);
else GPIO_ResetBits(LCD_Data5_Port,LCD_Data5_Pin);
if(LCD_Data.bits.bit6) GPIO_SetBits(LCD_Data6_Port,LCD_Data6_Pin);
else GPIO_ResetBits(LCD_Data6_Port,LCD_Data6_Pin);
if(LCD_Data.bits.bit7) GPIO_SetBits(LCD_Data7_Port,LCD_Data7_Pin);
else GPIO_ResetBits(LCD_Data7_Port,LCD_Data7_Pin);
if(LCD_Data.bits.bit8) GPIO_SetBits(LCD_Data8_Port,LCD_Data8_Pin);
else GPIO_ResetBits(LCD_Data8_Port,LCD_Data8_Pin);
if(LCD_Data.bits.bit9) GPIO_SetBits(LCD_Data9_Port,LCD_Data9_Pin);
else GPIO_ResetBits(LCD_Data9_Port,LCD_Data9_Pin);
if(LCD_Data.bits.bit10) GPIO_SetBits(LCD_Data10_Port,LCD_Data10_Pin);
else GPIO_ResetBits(LCD_Data10_Port,LCD_Data10_Pin);
if(LCD_Data.bits.bit11) GPIO_SetBits(LCD_Data11_Port,LCD_Data11_Pin);
else GPIO_ResetBits(LCD_Data11_Port,LCD_Data11_Pin);
if(LCD_Data.bits.bit12) GPIO_SetBits(LCD_Data12_Port,LCD_Data12_Pin);
else GPIO_ResetBits(LCD_Data12_Port,LCD_Data12_Pin);
if(LCD_Data.bits.bit13) GPIO_SetBits(LCD_Data13_Port,LCD_Data13_Pin);
else GPIO_ResetBits(LCD_Data13_Port,LCD_Data13_Pin);
if(LCD_Data.bits.bit14) GPIO_SetBits(LCD_Data14_Port,LCD_Data14_Pin);
else GPIO_ResetBits(LCD_Data14_Port,LCD_Data14_Pin);
if(LCD_Data.bits.bit15) GPIO_SetBits(LCD_Data15_Port,LCD_Data15_Pin);
else GPIO_ResetBits(LCD_Data15_Port,LCD_Data15_Pin);
#else
Port_D.Data_16_bits = GPIO_ReadOutputData(GPIOD);
Port_E.Data_16_bits = GPIO_ReadOutputData(GPIOE);
Port_D.bits.Pin_14 = LCD_Data.bits.bit0;
Port_D.bits.Pin_15 = LCD_Data.bits.bit1;
Port_D.bits.Pin_0 = LCD_Data.bits.bit2;
Port_D.bits.Pin_1 = LCD_Data.bits.bit3;
Port_E.bits.Pin_7 = LCD_Data.bits.bit4;
Port_E.bits.Pin_8 = LCD_Data.bits.bit5;
Port_E.bits.Pin_9 = LCD_Data.bits.bit6;
Port_E.bits.Pin_10 = LCD_Data.bits.bit7;
Port_E.bits.Pin_11 = LCD_Data.bits.bit8;
Port_E.bits.Pin_12 = LCD_Data.bits.bit9;
Port_E.bits.Pin_13 = LCD_Data.bits.bit10;
Port_E.bits.Pin_14 = LCD_Data.bits.bit11;
Port_E.bits.Pin_15 = LCD_Data.bits.bit12;
Port_D.bits.Pin_8 = LCD_Data.bits.bit13;
Port_D.bits.Pin_9 = LCD_Data.bits.bit14;
Port_D.bits.Pin_10 = LCD_Data.bits.bit15;
GPIO_Write(GPIOD,Port_D.Data_16_bits);
GPIO_Write(GPIOE,Port_E.Data_16_bits);
#endif
}
static uint16_t Read_Data(void)
{
Port_D.Data_16_bits = GPIO_ReadInputData(GPIOD);
Port_E.Data_16_bits = GPIO_ReadInputData(GPIOE);
LCD_Data.bits.bit0 = Port_D.bits.Pin_14;
LCD_Data.bits.bit1 = Port_D.bits.Pin_15;
LCD_Data.bits.bit2 = Port_D.bits.Pin_0;
LCD_Data.bits.bit3 = Port_D.bits.Pin_1;
LCD_Data.bits.bit4 = Port_E.bits.Pin_7;
LCD_Data.bits.bit5 = Port_E.bits.Pin_8;
LCD_Data.bits.bit6 = Port_E.bits.Pin_9;
LCD_Data.bits.bit7 = Port_E.bits.Pin_10;
LCD_Data.bits.bit8 = Port_E.bits.Pin_11;
LCD_Data.bits.bit9 = Port_E.bits.Pin_12;
LCD_Data.bits.bit10 = Port_E.bits.Pin_13;
LCD_Data.bits.bit11 = Port_E.bits.Pin_14;
LCD_Data.bits.bit12 = Port_E.bits.Pin_15;
LCD_Data.bits.bit13 = Port_D.bits.Pin_8;
LCD_Data.bits.bit14 = Port_D.bits.Pin_9;
LCD_Data.bits.bit15 = Port_D.bits.Pin_10;
return LCD_Data.Data_16_bits;
}
static void LCD_GPIO_data_config_output(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
Write_Data(0xffff);
//配置GPIO_Data
GPIO_InitStruct.GPIO_Mode =GPIO_Mode_Out_PP;//推挽输出
GPIO_InitStruct.GPIO_Speed =GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin =LCD_Data0_Pin;
GPIO_Init(LCD_Data0_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data1_Pin;
GPIO_Init(LCD_Data1_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data2_Pin;
GPIO_Init(LCD_Data2_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data3_Pin;
GPIO_Init(LCD_Data3_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data4_Pin;
GPIO_Init(LCD_Data4_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data5_Pin;
GPIO_Init(LCD_Data5_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data6_Pin;
GPIO_Init(LCD_Data6_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data7_Pin;
GPIO_Init(LCD_Data7_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data8_Pin;
GPIO_Init(LCD_Data8_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data9_Pin;
GPIO_Init(LCD_Data9_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data10_Pin;
GPIO_Init(LCD_Data10_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data11_Pin;
GPIO_Init(LCD_Data11_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data12_Pin;
GPIO_Init(LCD_Data12_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data13_Pin;
GPIO_Init(LCD_Data13_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data14_Pin;
GPIO_Init(LCD_Data14_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data15_Pin;
GPIO_Init(LCD_Data15_Port,&GPIO_InitStruct);
}
static void LCD_GPIO_data_config_intput(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
//Write_Data(0xffff);
//配置GPIO_Data
GPIO_InitStruct.GPIO_Mode =GPIO_Mode_IN_FLOATING;//浮空输入模式,或者开漏输出模式
GPIO_InitStruct.GPIO_Speed =GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin =LCD_Data0_Pin;
GPIO_Init(LCD_Data0_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data1_Pin;
GPIO_Init(LCD_Data1_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data2_Pin;
GPIO_Init(LCD_Data2_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data3_Pin;
GPIO_Init(LCD_Data3_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data4_Pin;
GPIO_Init(LCD_Data4_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data5_Pin;
GPIO_Init(LCD_Data5_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data6_Pin;
GPIO_Init(LCD_Data6_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data7_Pin;
GPIO_Init(LCD_Data7_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data8_Pin;
GPIO_Init(LCD_Data8_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data9_Pin;
GPIO_Init(LCD_Data9_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data10_Pin;
GPIO_Init(LCD_Data10_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data11_Pin;
GPIO_Init(LCD_Data11_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data12_Pin;
GPIO_Init(LCD_Data12_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data13_Pin;
GPIO_Init(LCD_Data13_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data14_Pin;
GPIO_Init(LCD_Data14_Port,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin =LCD_Data15_Pin;
GPIO_Init(LCD_Data15_Port,&GPIO_InitStruct);
}
///////////////////////LCD读写驱动封装函数///////////////////////////
static void LCD_Write(uint8_t cmd,uint16_t *intput_buff,uint32_t count)//建议使用此函数
{
uint32_t i;
LCD_CS_Enable;
LCD_RS_Enable;
LCD_Read_Disable;
LCD_Write_Enable;
Write_Data(cmd);
delay_125ns();
LCD_Write_Disable;
delay_125ns();
LCD_RS_Disable;
for (i = 0; i < count; i++)
{
LCD_Write_Enable;
Write_Data(intput_buff[i]);
delay_125ns();
LCD_Write_Disable;
delay_125ns();
}
LCD_CS_Disable;
}
static void LCD_Read(uint8_t cmd,uint16_t *output_buff,uint32_t count)//建议使用此函数
{
uint32_t i;
LCD_CS_Enable; //使能片选
LCD_RS_Enable; //命令
LCD_Read_Disable; //关闭读使能
LCD_Write_Enable; //写开始
Write_Data(cmd); //写命令
delay_125ns();
LCD_Write_Disable;//写结束
delay_125ns();
LCD_GPIO_data_config_intput();
LCD_RS_Disable; //数据
for(i = 0;i < count;i++)
{
LCD_Read_Enable; //开始读数据
delay_125ns();
LCD_Read_Disable;//读结束
output_buff[i]=Read_Data();//读取到的数据
delay_125ns();
}
LCD_CS_Disable;
LCD_GPIO_data_config_output();
}
///////////////////////LCD读写驱动封装函数///////////////////////////
//ILI9341内部寄存器初始化
static void ILI9341_REG_Config(void)
{
uint16_t REG_Buff[15];
LCD_Reset_Disable;
delay_ms(20);
LCD_Reset_Enable;
delay_ms(200);
LCD_Reset_Disable;
delay_ms(100);
/* Power control B (CFh) */
REG_Buff[0]=0x00;REG_Buff[1]=0x81;REG_Buff[2]=0x30;
LCD_Write(0xCF,REG_Buff,3);
/* Power on sequence control (EDh) */
REG_Buff[0]=0x64;REG_Buff[1]=0x03;REG_Buff[2]=0x12;REG_Buff[3]=0x81;
LCD_Write(0xED,REG_Buff,4);
/* Driver timing control A (E8h) */
REG_Buff[0]=0x85;REG_Buff[1]=0x10;REG_Buff[2]=0x78;
LCD_Write(0xE8,REG_Buff,3);
/* Power control A (CBh) */
REG_Buff[0]=0x39;REG_Buff[1]=0x2C;REG_Buff[2]=0x00;REG_Buff[3]=0x34;
REG_Buff[4]=0x02;
LCD_Write(0xCB,REG_Buff,5);
/* Pump ratio control (F7h) */
REG_Buff[0]=0x20;
LCD_Write(0xF7,REG_Buff,1);
/* Driver timing control B */
REG_Buff[0]=0x00;REG_Buff[1]=0x00;
LCD_Write(0xEA,REG_Buff,2);
/* Frame Rate Control (In Normal Mode/Full Colors) (B1h) */
REG_Buff[0]=0x00;REG_Buff[1]=0x1B;
LCD_Write(0xB1,REG_Buff,2);
/* Display Function Control (B6h) */
REG_Buff[0]=0x0A;REG_Buff[1]=0xA2;
LCD_Write(0xB6,REG_Buff,2);
/* Power Control 1 (C0h) */
REG_Buff[0]=0x35;
LCD_Write(0xC0,REG_Buff,1);
/* Power Control 2 (C1h) */
REG_Buff[0]=0x11;
LCD_Write(0xC1,REG_Buff,1);
/* VCOM Control 1 (C5h) */
REG_Buff[0]=0x45;REG_Buff[1]=0x45;
LCD_Write(0xC5,REG_Buff,2);
/* VCOM Control 2 (C7h) */
REG_Buff[0]=0xA2;
LCD_Write(0xC7,REG_Buff,1);
/* Enable 3G (F2h) */
REG_Buff[0]=0x00;
LCD_Write(0xF2,REG_Buff,1);
/* Gamma Set (26h) */
REG_Buff[0]=0x01;
LCD_Write(0x26,REG_Buff,1);
/* Positive Gamma Correction */
REG_Buff[0]=0x0F;REG_Buff[1]=0x26;REG_Buff[2]=0x24;
REG_Buff[3]=0x0B;REG_Buff[4]=0x0E;REG_Buff[5]=0x09;
REG_Buff[6]=0x54;REG_Buff[7]=0xA8;REG_Buff[8]=0x46;
REG_Buff[9]=0x0C;REG_Buff[10]=0x17;REG_Buff[11]=0x09;
REG_Buff[12]=0x0F;REG_Buff[13]=0x07;REG_Buff[14]=0x00;
LCD_Write(0xE0,REG_Buff,15);//Set Gamma
/* Negative Gamma Correction (E1h) */
REG_Buff[0]=0x00;REG_Buff[1]=0x19;REG_Buff[2]=0x1B;
REG_Buff[3]=0x04;REG_Buff[4]=0x10;REG_Buff[5]=0x07;
REG_Buff[6]=0x2A;REG_Buff[7]=0x47;REG_Buff[8]=0x39;
REG_Buff[9]=0x03;REG_Buff[10]=0x06;REG_Buff[11]=0x06;
REG_Buff[12]=0x30;REG_Buff[13]=0x38;REG_Buff[14]=0x0F;
LCD_Write(0XE1,REG_Buff,15);//Set Gamma
/* memory access control set */
REG_Buff[0]=0xC8;
LCD_Write(0x36,REG_Buff,1);/*竖屏 左上角到 (起点)到右下角 (终点)扫描方式*/
/* Pixel Format Set (3Ah) */
REG_Buff[0]=0x55;
LCD_Write(0x3a,REG_Buff,1);
/* Sleep Out (11h) */
LCD_Write(0x11,REG_Buff,0);
delay_ms(200);
/* Display ON (29h) */
LCD_Write(0x29,REG_Buff,0);
delay_ms(50);
}
void lcd_fill_color(uint16_t color);//lcd整个屏幕填充颜色速度应该慢点
void LCD_init_config(void)//lcd初始化总入口
{
LCD_GPIO_init_config();
LCD_BLK_Disable;
LCD_CS_Disable;
LCD_Read_Disable;
LCD_Write_Disable;
LCD_RS_Disable;
ILI9341_REG_Config();
lcd_fill_color(LCD_BLUE);
LCD_BLK_Enable;
}
/////////////////////////////////以下为功能函数接口//////////////////////////////////
void Read_LCD_REG(uint8_t REG, uint16_t *output_buff)//读取lcd内部寄存器
{
switch(REG)
{
case LCD_Read_Pixel_Cmd:LCD_Read(LCD_Read_Pixel_Cmd,output_buff,2);break;
case LCD_Read_ID_Cmd:LCD_Read(LCD_Read_ID_Cmd,output_buff,4);break;
}
}
//////////////////lcd屏开窗及颜色填充/////////////////
static void lcd_set_window(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey)
{
uint16_t window_data[4];
window_data[0] = sx >> 8;
window_data[1] = sx & 0xff;
window_data[2] = ex >> 8;
window_data[3] = ex & 0xff;
LCD_Write(0x2a,window_data,4);//设定X坐标,lcd屏进行长的开窗
window_data[0] = sy >> 8;
window_data[1] = sy & 0xff;
window_data[2] = ey >> 8;
window_data[3] = ey & 0xff;
LCD_Write(0x2b,window_data,4);//设定Y坐标,lcd屏进行宽的开窗
}
static void lcd_fill_data(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey, uint16_t *intput_buff,uint32_t size)//此lcd屏数据线为16条，故2字节数据传输
{
lcd_set_window(sx,sy,ex,ey);//开窗
LCD_Write(LCD_SetPixel_Cmd,intput_buff,size);//发送RGB注意lcd屏的接收格式是RGB还是BGR，为了阅读方便请配置为RGB格式
}
void LCD_Fill_Color(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey,uint16_t *intput_buff,uint16_t color)//开窗且颜色进行填充
{
uint32_t Area_size;//填充区域面积即填充个数
uint32_t i;
Area_size =(ex+1 - sx ) * (ey+1 - sy );
for (i = 0; i < Area_size; i++)
{
intput_buff[i] = color;
}
lcd_fill_data(sx,sy,ex,ey,intput_buff,Area_size);
}
void lcd_fill_color(uint16_t color)//lcd整个屏幕填充颜色速度应该慢点
{
uint32_t Area_size;//填充区域面积即填充个数
uint32_t i;
Area_size = (LCD_SCREEN_XRES+1)*(LCD_SCREEN_YRES+1);
lcd_set_window(0,0,LCD_SCREEN_XRES,LCD_SCREEN_YRES);//整个屏幕
LCD_CS_Enable;
LCD_RS_Enable;
LCD_Read_Disable;
LCD_Write_Enable;
Write_Data(LCD_SetPixel_Cmd);
delay_125ns();
LCD_Write_Disable;
delay_125ns();
LCD_RS_Disable;
for(i=0;i<Area_size;i++)
{
LCD_Write_Enable;
Write_Data(color);
delay_125ns();
LCD_Write_Disable;
delay_125ns();
}
LCD_CS_Disable;
}
//////////////////lcd屏开窗及颜色填充/////////////////
ILI9341.h
//作者：金丝草
#ifndef __ILI9341_H__
#define __ILI9341_H__
#include "stm32f10x.h"
#include "stm32f10x_rcc.h"
#include "stm32f10x_gpio.h"
#include "./delay/delay.h"
/* LCD屏幕分辨率320x240 */
#define LCD_SCREEN_XRES 239
#define LCD_SCREEN_YRES 319
//GPIO模拟LCD_8080进行通信
//控制引脚配置为推挽输出模式，数据引脚默认推完输出模式，当要读取的时候在零时配置为输入模式
/////////////////////////LCD对应的GPIO///////////////////////////
//lcd data PD14 PD15 PD0 PD1 PE7 PE8 PE9 PE10 PE11 PE12 PE13 PE14 PE15 PD8 PD9 PD10
//lcd switch PE1 PD12 PD7 PD4 PD5 PD11
//涉及到的时钟端口时钟端口D 端口E 且引脚外设均挂载外设时钟APP2上
#define LCD_RCC_Periph_GPIOD_Clk RCC_APB2Periph_GPIOD
#define LCD_RCC_Periph_GPIOE_Clk RCC_APB2Periph_GPIOE
#define LCD_All_GPIO_Clk_EN RCC_APB2PeriphClockCmd//启动或者禁用RCC外围电路的时钟
//lcd对应的16位数据线
#define LCD_Data0_Port GPIOD
#define LCD_Data0_Pin GPIO_Pin_14
#define LCD_Data1_Port GPIOD
#define LCD_Data1_Pin GPIO_Pin_15
#define LCD_Data2_Port GPIOD
#define LCD_Data2_Pin GPIO_Pin_0
#define LCD_Data3_Port GPIOD
#define LCD_Data3_Pin GPIO_Pin_1
#define LCD_Data4_Port GPIOE
#define LCD_Data4_Pin GPIO_Pin_7
#define LCD_Data5_Port GPIOE
#define LCD_Data5_Pin GPIO_Pin_8
#define LCD_Data6_Port GPIOE
#define LCD_Data6_Pin GPIO_Pin_9
#define LCD_Data7_Port GPIOE
#define LCD_Data7_Pin GPIO_Pin_10
#define LCD_Data8_Port GPIOE
#define LCD_Data8_Pin GPIO_Pin_11
#define LCD_Data9_Port GPIOE
#define LCD_Data9_Pin GPIO_Pin_12
#define LCD_Data10_Port GPIOE
#define LCD_Data10_Pin GPIO_Pin_13
#define LCD_Data11_Port GPIOE
#define LCD_Data11_Pin GPIO_Pin_14
#define LCD_Data12_Port GPIOE
#define LCD_Data12_Pin GPIO_Pin_15
#define LCD_Data13_Port GPIOD
#define LCD_Data13_Pin GPIO_Pin_8
#define LCD_Data14_Port GPIOD
#define LCD_Data14_Pin GPIO_Pin_9
#define LCD_Data15_Port GPIOD
#define LCD_Data15_Pin GPIO_Pin_10
//lcd的复位引脚
#define LCD_Reset_Port GPIOE
#define LCD_Reset_Pin GPIO_Pin_1
//lcd的背光脚
#define LCD_BLK_Port GPIOD
#define LCD_BLK_Pin GPIO_Pin_12
//lcd的片选脚
#define LCD_CS_Port GPIOD
#define LCD_CS_Pin GPIO_Pin_7
//lcd的读使能脚
#define LCD_Read_Port GPIOD
#define LCD_Read_Pin GPIO_Pin_4
//lcd的写使能脚
#define LCD_Write_Port GPIOD
#define LCD_Write_Pin GPIO_Pin_5
//lcd的数据或命令脚
#define LCD_RS_Port GPIOD
#define LCD_RS_Pin GPIO_Pin_11
/////////////////////////LCD对应的GPIO///////////////////////////
//lcd复位控制
#define LCD_Reset_Enable GPIO_ResetBits(LCD_Reset_Port,LCD_Reset_Pin)
#define LCD_Reset_Disable GPIO_SetBits(LCD_Reset_Port,LCD_Reset_Pin)
//lcd背光控制
#define LCD_BLK_Enable GPIO_ResetBits(LCD_BLK_Port,LCD_BLK_Pin)
#define LCD_BLK_Disable GPIO_SetBits(LCD_BLK_Port,LCD_BLK_Pin)
//lcd片选控制
#define LCD_CS_Enable GPIO_ResetBits(LCD_CS_Port,LCD_CS_Pin)
#define LCD_CS_Disable GPIO_SetBits(LCD_CS_Port,LCD_CS_Pin)
//lcd读控制
#define LCD_Read_Enable GPIO_ResetBits(LCD_Read_Port,LCD_Read_Pin)
#define LCD_Read_Disable GPIO_SetBits(LCD_Read_Port,LCD_Read_Pin)
//lcd写控制
#define LCD_Write_Enable GPIO_ResetBits(LCD_Write_Port,LCD_Write_Pin)
#define LCD_Write_Disable GPIO_SetBits(LCD_Write_Port,LCD_Write_Pin)
//lcd命令数据控制
#define LCD_RS_Enable GPIO_ResetBits(LCD_RS_Port,LCD_RS_Pin)
#define LCD_RS_Disable GPIO_SetBits(LCD_RS_Port,LCD_RS_Pin)
/*lcd常用命令*/
#define LCD_Read_Pixel_Cmd 0x0c//读取像素点格式
#define LCD_Read_ID_Cmd 0xd3//读取lcd的id值
#define LCD_Read_Dispaly_Power_Mode_Cmd 0x0a//读取显示电源模式
#define LCD_SetCoordinateX_Cmd 0x2a//设置X坐标
#define LCD_SetCoordinateY_Cmd 0x2b//设置Y坐标
#define LCD_SetPixel_Cmd 0x2C//填充像素
typedef union//stm32为小端模式
{
uint16_t Data_16_bits;
struct
{
uint16_t bit0 : 1;
uint16_t bit1 : 1;
uint16_t bit2 : 1;
uint16_t bit3 : 1;
uint16_t bit4 : 1;
uint16_t bit5 : 1;
uint16_t bit6 : 1;
uint16_t bit7 : 1;
uint16_t bit8 : 1;
uint16_t bit9 : 1;
uint16_t bit10 : 1;
uint16_t bit11 : 1;
uint16_t bit12 : 1;
uint16_t bit13 : 1;
uint16_t bit14 : 1;
uint16_t bit15 : 1;
}bits;
}LCD_Data_Union;
typedef union
{
uint16_t Data_16_bits;
struct
{
uint16_t Pin_0 : 1;
uint16_t Pin_1 : 1;
uint16_t Pin_2 : 1;
uint16_t Pin_3 : 1;
uint16_t Pin_4 : 1;
uint16_t Pin_5 : 1;
uint16_t Pin_6 : 1;
uint16_t Pin_7 : 1;
uint16_t Pin_8 : 1;
uint16_t Pin_9 : 1;
uint16_t Pin_10 : 1;
uint16_t Pin_11 : 1;
uint16_t Pin_12 : 1;
uint16_t Pin_13 : 1;
uint16_t Pin_14 : 1;
uint16_t Pin_15 : 1;
}bits;
}LCD_Port_Union;
///////////RGB565常用颜色对照表/////////////
#define LCD_BLACK 0x0000 // 黑色
#define LCD_NAVY 0x000F // 深蓝色
#define LCD_DGREEN 0x03E0 // 深绿色
#define LCD_DCYAN 0x03EF // 深青色
#define LCD_MAROON 0x7800 // 深红色
#define LCD_PURPLE 0x780F // 紫色
#define LCD_OLIVE 0x7BE0 // 橄榄绿
#define LCD_LGRAY 0xC618 // 灰白色
#define LCD_DGRAY 0x7BEF // 深灰色
#define LCD_BLUE 0x001F // 蓝色
#define LCD_GREEN 0x07E0 // 绿色
#define LCD_CYAN 0x07FF // 青色
#define LCD_RED 0xF800 // 红色
#define LCD_MAGENTA 0xF81F // 品红
#define LCD_YELLOW 0xFFE0 // 黄色
#define LCD_WHITE 0xFFFF // 白色
///////////RGB565常用颜色对照表/////////////
void LCD_init_config(void);//初始化lcd液晶屏
void Read_LCD_REG(uint8_t REG, uint16_t *output_buff);//读取lcd内部寄存器
void LCD_Fill_Color(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey, uint16_t *intput_buff,uint16_t color);//开窗且颜色进行填充
void lcd_fill_color(uint16_t color);//lcd整个屏幕填充颜色速度应该慢点
void LCD_Puts(char *s);//lcd屏字符串的显示
#endif /*__ILI9341_H__*/
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