STM32 ILI9325 驱动代码学习总结

[导读] 为了更好，更深入学习了解ILI9325系列TFT的驱动原理，自己做了一块TFT板子。为了方便测试，在上面集成了STM32芯片，到时候做实验的时候就焊接STM32测试，如果只是使用，就直接焊接TFT就行了。板子还在做

为了更好，更深入学习了解ILI9325系列TFT的驱动原理，自己做了一块TFT板子。为了方便测试，在上面集成了STM32芯片，到时候做实验的时候就焊接STM32测试，如果只是使用，就直接焊接TFT就行了。板子还在做，先上原理图与PCB。

-------------------------等板子回来，再测试，总结继续-------------

--------板子回来了，焊接好了，简单测试了一下！-----------

---------第二部分---------------ili9320.h------------------代码简单分析------

#ifndef _ILI9320_H_
#define _ILI9320_H_

#include "stm32f10x.h"

#define DB0_7_RCC RCC_APB2Periph_GPIOB
#define DB_8_15_RCC RCC_APB2Periph_GPIOC
//-------------------------------------------
#define nCsPin_RCC RCC_APB2Periph_GPIOC
#define nCsPin_Port GPIOC
#define nCsPin GPIO_Pin_11

#define RsPin_RCC RCC_APB2Periph_GPIOC
#define RsPin_Port GPIOC
#define RsPin GPIO_Pin_8

#define nWrPin_RCC RCC_APB2Periph_GPIOC
#define nWrPin_Port GPIOC
#define nWrPin GPIO_Pin_9

#define nRdPin_RCC RCC_APB2Periph_GPIOC
#define nRdPin_Port GPIOC
#define nRdPin GPIO_Pin_10

#define nRstPin_RCC RCC_APB2Periph_GPIOC
#define nRstPin_Port GPIOC
#define nRstPin GPIO_Pin_12

#define LightPin_RCC RCC_APB2Periph_GPIOB
#define LightPin_Port GPIOB
#define LightPin GPIO_Pin_0
//-----------------------------------------
#define Set_nWrnCsPin_Port->BSRR = nWrPin // GPIO_SetBits (nWrPin_Port, nWrPin)
#define Clr_nWrnCsPin_Port->BRR = nWrPin // GPIO_ResetBits (nWrPin_Port, nWrPin)

#define Set_Cs nCsPin_Port->BSRR = nCsPin // GPIO_SetBits (nCsPin_Port, nCsPin)
#define Clr_Cs nCsPin_Port->BRR = nCsPin// GPIO_ResetBits (nCsPin_Port, nCsPin)

#define Set_Rs RsPin_Port->BSRR = RsPin// GPIO_SetBits (RsPin_Port, RsPin)
#define Clr_Rs RsPin_Port->BRR = RsPin // GPIO_ResetBits (RsPin_Port, RsPin)

#define Set_nRdnRdPin_Port->BSRR = nRdPin// GPIO_SetBits (nRdPin_Port, nRdPin)
#define Clr_nRdnRdPin_Port->BRR = nRdPin // GPIO_ResetBits (nRdPin_Port, nRdPin)

#define Set_RstnRstPin_Port->BSRR = nRstPin// GPIO_SetBits (nRstPin_Port, nRstPin)
#define Clr_RstnRstPin_Port->BRR = nRstPin // GPIO_ResetBits (nRstPin_Port, nRstPin)

#define Set_LightLightPin_Port->BSRR = LightPin// GPIO_SetBits (LightPin_Port, LightPin)
#define Clr_LightLightPin_Port->BRR = LightPin// GPIO_ResetBits (LightPin_Port, LightPin)
//---------------------------------
#define White 0xFFFF
#define Black 0x0000
#define Grey 0xF7DE
#define Blue 0x001F
#define Blue2 0x051F
#define Red 0xF800
#define Magenta 0xF81F
#define Green 0x07E0
#define Cyan 0x7FFF
#define Yellow 0xFFE0

void Lcd_Configuration(void); //初始化GPIO
void LCD_ili9320_Initializtion(void); //初始化ILI9320---uCGUI需要使用--1
void LCD_ili9320_Reset(void);
void LCD_ili9320_BackLight(u8 status); //背光

void LCD_ili9320_SetCursor(u16 x,u16 y); //设置坐标---uCGUI需要使用--2
void LCD_ili9320_SetWindows(u16 StartX,u16 StartY,u16 EndX,u16 EndY); //设置窗体
void LCD_ili9320_DrawPicture(u16 StartX,u16 StartY,u16 EndX,u16 EndY,u16 *pic);//画图片
void LCD_ili9320_SetPoint(u16 x,u16 y,u16 point);//画点---uCGUI需要使用--3
u16 LCD_ili9320_GetPoint(u16 x,u16 y); //读取点颜色---uCGUI需要使用--4

void LCD_ili9320_PutChar(u16 x,u16 y,u8 c,u16 charColor,u16 bkColor); //显示字符--需要字体头文件
void LCD_ili9320_Clear(u16 dat); //清屏
void LCD_ili9320_Delay(u32 nCount);
void LCD_ili9320_Test(void);

void LCD_ili9320_WriteData(u16 dat); //写数据
void LCD_ili9320_WriteIndex(u16 idx); //写地址
u16 LCD_ili9320_ReadData(void); //读数据
u16 LCD_ili9320_ReadRegister(u16 index); //读寄存器
void LCD_ili9320_WriteRegister(u16 index,u16 dat); //写寄存器

u16 LCD_ili9320_BGR2RGB(u16 c); //转换颜色格式
u16 LCD_ili9320_Color565(u32 RGB); // RGB颜色转为16位(565)

void LCD_ili9320_DrawHLine(uint16_t usX1 , uint16_t usY1 , uint16_t usX2 , uint16_t usColor);//水平线---uCGUI需要使用--5
void LCD_ili9320_DrawVLine(uint16_t usX1 , uint16_t usY1 , uint16_t usY2 , uint16_t usColor);//垂直线---uCGUI需要使用--6
void LCD_ili9320_FillRect(u16 x0, u16 y0, u16 x1, u16 y1,u16 color);//填充矩形---uCGUI需要使用--7

void LCD_ili9320_Line(u16 x0, u16 y0, u16 x1, u16 y1,u16 color); // 画任意直线线
void LCD_ili9320_Circle(u16 cx,u16 cy,u16 r,u16 color,u8 fill); // 画园
void LCD_ili9320_Rectangle(u16 x0, u16 y0, u16 x1, u16 y1,u16 color,u8 fill); // 画矩形--填充或者不填充
void LCD_ili9320_Square(u16 x0, u16 y0, u16 with, u16 color,u8 fill); // 画正方形--填充或者不填充

void LCD_ili9320_Text(u16 x, u16 y, u8 *str, u16 len,u16 Color, u16 bkColor); //简单测试--显示渐变色条

#endif

---------第三部分----------------ili9320.c------代码分析------

#include "ili9320.h"
#include "ili9320_font.h"

void Lcd_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB " RCC_APB2Periph_GPIOC, ENABLE); //初始化数据引脚 ---DB0~~DB7是PB8~~PB15 DB8~~DB15是PC0~~PC7----------//

GPIO_InitStructure.GPIO_Pin =GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &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_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);

RCC_APB2PeriphClockCmd(nCsPin_RCC, ENABLE); // 控制脚 CS ------PC11----//
GPIO_InitStructure.GPIO_Pin = nCsPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(nCsPin_Port, &GPIO_InitStructure);

RCC_APB2PeriphClockCmd(RsPin_RCC, ENABLE); // 控制脚 RS -------PC8---//
GPIO_InitStructure.GPIO_Pin = RsPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(RsPin_Port, &GPIO_InitStructure);

RCC_APB2PeriphClockCmd(nWrPin_RCC, ENABLE); // 控制脚 WR ----PC9--//
GPIO_InitStructure.GPIO_Pin = nWrPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(nWrPin_Port, &GPIO_InitStructure);

RCC_APB2PeriphClockCmd(nRdPin_RCC, ENABLE); // 控制脚 RD ---PC10--//
GPIO_InitStructure.GPIO_Pin = nRdPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(nRdPin_Port, &GPIO_InitStructure);

RCC_APB2PeriphClockCmd(nRstPin_RCC, ENABLE); // 控制脚 RST ---PC12--//
GPIO_InitStructure.GPIO_Pin = nRstPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(nRstPin_Port, &GPIO_InitStructure);

RCC_APB2PeriphClockCmd(LightPin_RCC, ENABLE); // 控制脚背光 --PB00---//
GPIO_InitStructure.GPIO_Pin = LightPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(LightPin_Port, &GPIO_InitStructure);
}

void delayms(int count) // X1ms
{
int i,j;
for(i=0;i for(j=0;j<1000;j++);
}

void LCD_ili9320_Initializtion (void) //--功能：初始化 ILI9320 控制器
{
volatile u16 i, j, k;
u32 DeviceCode = 0;
Lcd_Configuration();
LCD_ili9320_BackLight(0); //关背光

delayms(200);
Clr_Rst;
delayms(200);

LCD_ili9320_WriteData(0xffff);
Set_Rst; Set_nWr; Set_Cs; Set_Rs; Set_nRd; Set_Rst;
delayms(200);

LCD_ili9320_WriteRegister(0x0000,0x0001); // Start OCS
delayms(200);
DeviceCode = LCD_ili9320_ReadRegister(0x0000); // 读控制器型号 ILI9320

if(DeviceCode == 0x9320||0x9300)
{
LCD_ili9320_WriteRegister(0x00,0x0000);
LCD_ili9320_WriteRegister(0x01,0x0100);//驱动器输出控制
LCD_ili9320_WriteRegister(0x02,0x0700);//LCD驱动波形控制-反转
LCD_ili9320_WriteRegister(0x03,0x1030);//进入模式--F-

LCD_ili9320_WriteRegister(0x04,0x0000);//重新调整控制寄存器大小---缩放
LCD_ili9320_WriteRegister(0x08,0x0202);//Display Contral 2.(0x0207)
LCD_ili9320_WriteRegister(0x09,0x0000);//Display Contral 3.(0x0000)
LCD_ili9320_WriteRegister(0x0a,0x0000);//Frame信号输出间隔
LCD_ili9320_WriteRegister(0x0c,(1<<0)); //RGB显示接口控制1--16位
LCD_ili9320_WriteRegister(0x0d,0x0000);//帧标记的位置
LCD_ili9320_WriteRegister(0x0f,0x0000); //RGB显示接口控制1
delayms(5);
LCD_ili9320_WriteRegister(0x07,0x0101);//Display Contral.
delayms(5);
LCD_ili9320_WriteRegister(0x10,(1<<12)|(0<<8)|(1<<7)|(1<<6)|(0<<4));//Power Control 1.(0x16b0)
LCD_ili9320_WriteRegister(0x11,0x0007); //Power Control 2.(0x0001)
LCD_ili9320_WriteRegister(0x12,(1<<8)|(1<<4)|(0<<0));//Power Control 3.(0x0138)
LCD_ili9320_WriteRegister(0x13,0x0b00);//Power Control 4.
LCD_ili9320_WriteRegister(0x29,0x0000); //Power Control 7.

LCD_ili9320_WriteRegister(0x2b,(1<<14)|(1<<4));//帧速率和色彩控制---70
LCD_ili9320_WriteRegister(0x50,0);//Set X Star240*320
LCD_ili9320_WriteRegister(0x51,239); //水平GRAM终止位置Set X End.

LCD_ili9320_WriteRegister(0x52,0);//Set Y Star
LCD_ili9320_WriteRegister(0x53,319);//Set Y End.t.

LCD_ili9320_WriteRegister(0x60,0x2700);//门扫描控制器
LCD_ili9320_WriteRegister(0x61,0x0001);//Driver Output Control.
LCD_ili9320_WriteRegister(0x6a,0x0000); //Vertical Srcoll Control.

LCD_ili9320_WriteRegister(0x80,0x0000); //局部影像控制器1
LCD_ili9320_WriteRegister(0x81,0x0000); //局部影像控制器1--起始地址
LCD_ili9320_WriteRegister(0x82,0x0000); //局部影像控制器1--终止地址
LCD_ili9320_WriteRegister(0x83,0x0000); //Displsy Position? Partial Display 2.
LCD_ili9320_WriteRegister(0x84,0x0000); //RAM Address Start? Partial Display 2.
LCD_ili9320_WriteRegister(0x85,0x0000); //RAM Address End? Partial Display 2.

LCD_ili9320_WriteRegister(0x90,(0<<7)|(16<<0)); //平板接口控制器1(0x0013)
LCD_ili9320_WriteRegister(0x92,0x0000);//Panel Interface Contral 2.(0x0000)
LCD_ili9320_WriteRegister(0x93,0x0001); //Panel Interface Contral 3.
LCD_ili9320_WriteRegister(0x95,0x0110); //Frame Cycle Contral.(0x0110)
LCD_ili9320_WriteRegister(0x97,(0<<8)); //
LCD_ili9320_WriteRegister(0x98,0x0000); //Frame Cycle Contral.
LCD_ili9320_WriteRegister(0x07,0x0173);//(0x0173)
}
else if(DeviceCode==0x9325||DeviceCode==0x9328)//ILI9325
{
LCD_ili9320_WriteRegister(0x00e7,0x0010);
LCD_ili9320_WriteRegister(0x0000,0x0001); //开启内部时钟
LCD_ili9320_WriteRegister(0x0001,0x0100);
LCD_ili9320_WriteRegister(0x0002,0x0700); //电源开启

LCD_ili9320_WriteRegister(0x0003,(1<<12)|(3<<4)|(0<<3) ); //65K
LCD_ili9320_WriteRegister(0x0004,0x0000);
LCD_ili9320_WriteRegister(0x0008,0x0207);
LCD_ili9320_WriteRegister(0x0009,0x0000);
LCD_ili9320_WriteRegister(0x000a,0x0000);//display setting
LCD_ili9320_WriteRegister(0x000c,0x0001); //display setting
LCD_ili9320_WriteRegister(0x000d,0x0000);//0f3c
LCD_ili9320_WriteRegister(0x000f,0x0000);
//电源配置
LCD_ili9320_WriteRegister(0x0010,0x0000);
LCD_ili9320_WriteRegister(0x0011,0x0007);
LCD_ili9320_WriteRegister(0x0012,0x0000);
LCD_ili9320_WriteRegister(0x0013,0x0000);
delayms(5);
LCD_ili9320_WriteRegister(0x0010,0x1590);
LCD_ili9320_WriteRegister(0x0011,0x0227);
delayms(5);
LCD_ili9320_WriteRegister(0x0012,0x009c);
delayms(5);
LCD_ili9320_WriteRegister(0x0013,0x1900);
LCD_ili9320_WriteRegister(0x0029,0x0023);
LCD_ili9320_WriteRegister(0x002b,0x000e);
delayms(5);
LCD_ili9320_WriteRegister(0x0020,0x0000);
LCD_ili9320_WriteRegister(0x0021,0x013f);
delayms(5);
//伽马校正
LCD_ili9320_WriteRegister(0x0030,0x0007);
LCD_ili9320_WriteRegister(0x0031,0x0707);
LCD_ili9320_WriteRegister(0x0032,0x0006);
LCD_ili9320_WriteRegister(0x0035,0x0704);
LCD_ili9320_WriteRegister(0x0036,0x1f04);
LCD_ili9320_WriteRegister(0x0037,0x0004);
LCD_ili9320_WriteRegister(0x0038,0x0000);
LCD_ili9320_WriteRegister(0x0039,0x0706);
LCD_ili9320_WriteRegister(0x003c,0x0701);
LCD_ili9320_WriteRegister(0x003d,0x000f);
delayms(5);
LCD_ili9320_WriteRegister(0x0050,0x0000); //水平GRAM起始位置
LCD_ili9320_WriteRegister(0x0051,0x00ef);//水平GRAM终止位置
LCD_ili9320_WriteRegister(0x0052,0x0000); //垂直GRAM起始位置
LCD_ili9320_WriteRegister(0x0053,0x013f); //垂直GRAM终止位置

LCD_ili9320_WriteRegister(0x0060,0xa700);
LCD_ili9320_WriteRegister(0x0061,0x0001);
LCD_ili9320_WriteRegister(0x006a,0x0000);
LCD_ili9320_WriteRegister(0x0080,0x0000);
LCD_ili9320_WriteRegister(0x0081,0x0000);
LCD_ili9320_WriteRegister(0x0082,0x0000);
LCD_ili9320_WriteRegister(0x0083,0x0000);
LCD_ili9320_WriteRegister(0x0084,0x0000);
LCD_ili9320_WriteRegister(0x0085,0x0000);

LCD_ili9320_WriteRegister(0x0090,0x0010);
LCD_ili9320_WriteRegister(0x0092,0x0000);
LCD_ili9320_WriteRegister(0x0093,0x0003);
LCD_ili9320_WriteRegister(0x0095,0x0110);
LCD_ili9320_WriteRegister(0x0097,0x0000);
LCD_ili9320_WriteRegister(0x0098,0x0000);
//开启显示设置
LCD_ili9320_WriteRegister(0x0007,0x0133);
LCD_ili9320_WriteRegister(0x0020,0x0000);
LCD_ili9320_WriteRegister(0x0021,0x013f);
}
delayms(200);
LCD_ili9320_BackLight(1);//开背光
}
void LCD_ili9320_SetCursor(u16 x,u16 y) //--功能：设置屏幕座标
{
LCD_ili9320_WriteRegister(0x0020,x);// 行
LCD_ili9320_WriteRegister(0x0021,y);// 列
}
/****************************************************************************
* 功能：设置窗口区域
* 入口参数：StartX 行起始座标
* StartY 列起始座标
* EndX 行结束座标
* EndY 列结束座标
****************************************************************************/
void LCD_ili9320_SetWindows(u16 StartX,u16 StartY,u16 EndX,u16 EndY)
{
LCD_ili9320_SetCursor(StartX,StartY);
LCD_ili9320_WriteRegister(0x0050, StartX);
LCD_ili9320_WriteRegister(0x0052, StartY);
LCD_ili9320_WriteRegister(0x0051, EndX);
LCD_ili9320_WriteRegister(0x0053, EndY);
}
/****************************************************************************
* 功能：将屏幕填充成指定的颜色，如清屏，则填充 0xffff
* 入口参数：dat 填充值
****************************************************************************/
void LCD_ili9320_Clear(u16 dat)
{
u32 i;

LCD_ili9320_SetCursor(0x0000, 0x0000);
Clr_Cs;
LCD_ili9320_WriteIndex(0x0022);
Set_Rs;
for(i = 0; i < 768000; i++) //240*320=76800
{
LCD_ili9320_WriteData(dat);
Clr_nWr;
Set_nWr;
}
Set_Cs;
}
/****************************************************************************
* 功能：获取指定座标的颜色值
* 入口参数：x 行座标
* y 列座标
* 出口参数：当前座标颜色值
****************************************************************************/
u16 LCD_ili9320_GetPoint(u16 x,u16 y)
{
LCD_ili9320_SetCursor(x,y);

return (LCD_ili9320_BGR2RGB(LCD_ili9320_ReadRegister(0x0022)));
}
/****************************************************************************
* 功能：在指定座标画点
* 入口参数：x 行座标
* y 列座标
* point 点的颜色
****************************************************************************/
void LCD_ili9320_SetPoint(u16 x,u16 y,u16 point)
{
if ((x>240)||(y>320))
return;
LCD_ili9320_SetCursor(x,y);

Clr_Cs;
LCD_ili9320_WriteIndex(0x0022);
Set_Rs;
LCD_ili9320_WriteData(point);
Clr_nWr;Set_nWr;
Set_Cs;
}
/****************************************************************************
* 功能：在指定座标范围显示一副图片
* 入口参数：StartX 行起始座标
* StartY 列起始座标
* EndX 行结束座标
* EndY 列结束座标
* pic 图片头指针
* 说明：图片取模格式为水平扫描，16位颜色模式
****************************************************************************/
void LCD_ili9320_DrawPicture(u16 StartX,u16 StartY,u16 EndX,u16 EndY,u16 *pic)
{
u16 i;
LCD_ili9320_SetWindows(StartX,StartY,EndX,EndY);
LCD_ili9320_SetCursor(StartX,StartY);

Clr_Cs;

LCD_ili9320_WriteIndex(0x0022);
Set_Rs;
for (i=0;i<(EndX*EndY);i++)
{
LCD_ili9320_WriteData(*pic++);
Clr_nWr;Set_nWr;
}
Set_Cs;
}
/****************************************************************************
* 功能：在指定座标显示一个8x16点阵的ascii字符
* 入口参数：x 行座标
* y 列座标
* charColor 字符的颜色
* bkColor 字符背景颜色
* 说明：显示范围限定为可显示的ascii码
****************************************************************************/
void LCD_ili9320_PutChar(u16 x,u16 y,u8 c,u16 charColor,u16 bkColor)
{
u16 i=0;
u16 j=0;
u8 tmp_char=0;

for (i=0;i<16;i++)
{
if(c == '')
continue;
tmp_char=ascii_8x16[((c-0x20)*16)+i];
for (j=0;j<8;j++)
{
if ( (tmp_char >> 7-j) & 0x01 == 0x01)
LCD_ili9320_SetPoint(x+j,y+i,charColor);// 字符颜色
else
LCD_ili9320_SetPoint(x+j,y+i,bkColor);// 背景颜色
}
}
}
/****************************************************************************
* 功能：测试液晶屏
* 说明：显示彩条，测试液晶屏是否正常工作
****************************************************************************/
void LCD_ili9320_Test()
{
u8 R_data,G_data,B_data,i,j;

LCD_ili9320_SetCursor(0x00, 0x0000);
LCD_ili9320_WriteRegister(0x0050,0x00);//水平 GRAM起始位置
LCD_ili9320_WriteRegister(0x0051,239); //水平GRAM终止位置
LCD_ili9320_WriteRegister(0x0052,0); //垂直GRAM起始位置
LCD_ili9320_WriteRegister(0x0053,319); //垂直GRAM终止位置
Clr_Cs;
LCD_ili9320_WriteIndex(0x0022);
Set_Rs;
R_data=0;G_data=0;B_data=0;
for(j=0;j<50;j++)//红色渐强条
{
for(i=0;i<240;i++)
{
R_data=i/8;
LCD_ili9320_WriteData(R_data<<11|G_data<<5|B_data);
Clr_nWr;Set_nWr;
}
}
R_data=0x1f;G_data=0x3f;B_data=0x1f;
for(j=0;j<50;j++)
{
for(i=0;i<240;i++)
{
G_data=0x3f-(i/4);
B_data=0x1f-(i/8);
LCD_ili9320_WriteData(R_data<<11|G_data<<5|B_data);
Clr_nWr;
Set_nWr;
}
}
//----------------------------------
R_data=0;G_data=0;B_data=0;
for(j=0;j<50;j++)//绿色渐强条
{
for(i=0;i<240;i++)
{
G_data=i/4;
LCD_ili9320_WriteData(R_data<<11|G_data<<5|B_data);
Clr_nWr;
Set_nWr;
}
}

R_data=0x1f;G_data=0x3f;B_data=0x1f;
for(j=0;j<50;j++)
{
for(i=0;i<240;i++)
{
R_data=0x1f-(i/8);
B_data=0x1f-(i/8);
LCD_ili9320_WriteData(R_data<<11|G_data<<5|B_data);
Clr_nWr;
Set_nWr;
}
}
//----------------------------------
R_data=0;G_data=0;B_data=0;
for(j=0;j<60;j++) //蓝色渐强条
{
for(i=0;i<240;i++)
{
B_data=i/8;
LCD_ili9320_WriteData(R_data<<11|G_data<<5|B_data);
Clr_nWr;
Set_nWr;
}
}

B_data=0;
R_data=0x1f;G_data=0x3f;B_data=0x1f;

for(j=0;j<60;j++)
{
for(i=0;i<240;i++)
{
G_data=0x3f-(i/4);
R_data=0x1f-(i/8);
LCD_ili9320_WriteData(R_data<<11|G_data<<5|B_data);
Clr_nWr;
Set_nWr;
}
}
Set_Cs;
}
/****************************************************************************
* 功能：RRRRRGGGGGGBBBBB 改为 BBBBBGGGGGGRRRRR 格式
* 入口参数：c BRG 颜色值
* 出口参数：RGB 颜色值
****************************************************************************/
u16 LCD_ili9320_BGR2RGB(u16 c)
{
u16 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 );
}
/****************************************************************************
* 功能：写 ili9320 控制器寄存器地址
* 入口参数：idx 寄存器地址
****************************************************************************/
void LCD_ili9320_WriteIndex(u16 idx)
{
Clr_Rs;
Set_nRd;
LCD_ili9320_WriteData(idx);
Clr_nWr;
Set_nWr;
Set_Rs;
}
/****************************************************************************
* 功能：写 ili9320 寄存器数据
* 入口参数：dat 寄存器数据
* 说明：向控制器指定地址写入数据，调用前需先写寄存器地址，内部函数
****************************************************************************/
void LCD_ili9320_WriteData(u16 data)
{
GPIOB->ODR = (GPIOB->ODR & 0x00ff) | (((data << 8) >> 8) << 8);// 低8位数据写入CPIOB高8位
GPIOC->ODR = (GPIOC->ODR & 0xff00) | (((data >> 8) << 8) >> 8);// 高8位数据写入CPIOC低8位
}
/****************************************************************************
* 功能：读取控制器数据
* 出口参数：返回读取到的数据
****************************************************************************/
u16 LCD_ili9320_ReadData(void)
{
//========================================================================
// ** **
// ** nCS ----__________________________________________/------- **
// ** RS ------____________/----------------------------------- **
// ** nRD -------------------------_____/--------------------- **
// ** nWR --------_______/-------------------------------------- **
// ** DB[0:15] ---------[index]----------[data]----------------------- **
// ** **
//========================================================================

u32 tmp;
GPIO_InitTypeDef GPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 |GPIO_Pin_11 | 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_IPU; //上拉输入模式
GPIO_Init(GPIOB, &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_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOC, &GPIO_InitStructure);

tmp = ((GPIOB->IDR & 0xff00) >> 8); //PB的高8位为数据的低8位
tmp |= ((GPIOC->IDR & 0x00ff) << 8);//PC的低8位为数据的高8位
//再次将GPIO恢复为输出模式
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | 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_Out_PP;
GPIO_Init(GPIOB, &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_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);

return tmp;
}
/****************************************************************************
* 功能：读取指定地址寄存器的值
* 入口参数：index 寄存器地址
* 出口参数：寄存器值
****************************************************************************/
u16 LCD_ili9320_ReadRegister(u16 index)
{
Clr_Cs;
LCD_ili9320_WriteIndex(index);
Clr_nRd;
index = LCD_ili9320_ReadData();
Set_nRd;
Set_Cs;
return index;
}
/****************************************************************************
* 功能：写指定地址寄存器的值
* 入口参数：index 寄存器地址
* ：dat 寄存器值
****************************************************************************/
void LCD_ili9320_WriteRegister(u16 index,u16 dat)
{
/************************************************************************
** **
** nCS ----__________________________________________/------- **
** RS ------____________/----------------------------------- **
** nRD ------------------------------------------------------- **
** nWR --------_______/--------_____/----------------------- **
** DB[0:15] ---------[index]----------[data]----------------------- **
** **
************************************************************************/
Clr_Cs;
Clr_Rs;
Set_nRd;
LCD_ili9320_WriteData(index);//地址
Clr_nWr;
Set_nWr;
Set_Rs;
LCD_ili9320_WriteData(dat); //值
Clr_nWr;
Set_nWr;
Set_Cs;
}
/****************************************************************************
* 功能：复位 ili9320 控制器
* 说明：复位控制器，内部函数
****************************************************************************/
void LCD_ili9320_Reset()
{
}
/****************************************************************************
* 功能：开、关液晶背光
* 入口参数：status 1:背光开 0:背光关
****************************************************************************/
void LCD_ili9320_BackLight(u8 status)
{
if ( status >= 1 )
Clr_Light; //低电平开背光
else