STM32学习笔记——TFT2.4彩屏显示图片

彩屏的驱动程序如果写好的话，就可以一直使用了，精力主要集中在应用程序的编写就可以了，但是移植的话，要移植驱动程序。其实移植也只是改变那些很底层的靠近处理器的那部分代码。

因为STM32F103C8的片上只有64K的FLASH，所以不能存储太多的图片数据，也就不能显示太大的图片。

一下的程序注释的比较详细，看懂了基本上就可以用了。

彩屏驱动程序的头文件lcd.h如下：

#defineucharunsignedchar

#defineuintunsignedint

#defineBus_16//16位数据模式,如果使用8位模式，请注释此语句，如果使用16位模式，请打开此句

#defineLCD_DataPortHP1//高8位数据口,8位模式下只使用高8位

#defineLCD_DataPortLP0//低8位数据口,8位模式下低8位可以不接线

#defineLCD_WRGPIO_Pin_2//WR引脚定义P2^5

#defineLCD_RSGPIO_Pin_1//RS引脚定义P2^6

#defineLCD_CSGPIO_Pin_0//CS引脚定义P2^7

#defineLCD_RSTGPIO_Pin_11//RST引脚定义P3^3

#defineLCD_RDGPIO_Pin_8//RD引脚定义P3^2

#defineLCD_SIZE_X240

#defineLCD_SIZE_Y320

externuintcolors[];

externvoidpic_play(uintxStart,uintxEnd,uintyStart,uintyEnd);//显示图片函数

voiddelayms(intcount);

//voidLCD_Writ_Bus(charVH,charVL);

voidLCD_Init(void);

voidLCD_Writ_Bus(uintVH,uintVL);

voidLCD_Write_COM(charVH,charVL);

voidLCD_Write_DATA(charVH,charVL);

voidPant(charVH,charVL);

voidAddress_set(unsignedintx1,unsignedinty1,unsignedintx2,unsignedinty2);

驱动程序lcd.c文件如下：

#include"stm32f10x_lib.h"

#include"Lcd.h"

//存储图片数据的头文件

//#include"picture.h"

#include"picture_sara.h"

#include"xiaoqian.h"

#include"yang.h"

#defineLCD_rest(x)x?GPIO_SetBits(GPIOA,LCD_RST):GPIO_ResetBits(GPIOA,LCD_RST)//自己定义位操作函数

#defineLCD_rd(x)x?GPIO_SetBits(GPIOA,LCD_RD):GPIO_ResetBits(GPIOA,LCD_RD)

#defineLCD_rs(x)x?GPIO_SetBits(GPIOB,LCD_RS):GPIO_ResetBits(GPIOB,LCD_RS)

#defineLCD_wr(x)x?GPIO_SetBits(GPIOB,LCD_WR):GPIO_ResetBits(GPIOB,LCD_WR)

#defineLCD_cs(x)x?GPIO_SetBits(GPIOB,LCD_CS):GPIO_ResetBits(GPIOB,LCD_CS)

uintcolors[]=

{

0xf800,0x07e0,0x001f,0xffe0,0x0000,0x07ff,0xf81f,0xffff//颜色数据

};

voidLCD_Init(void)//初始化LCD

{

LCD_rest(1);

delayms(5);

LCD_rest(0);

delayms(5);

LCD_rest(1);

delayms(5);

LCD_cs(0);//打开片选使能

//

LCD_Write_COM(0x00,0xE5);LCD_Write_DATA(0x78,0xF0);//setSRAMinternaltiming

LCD_Write_COM(0x00,0x01);LCD_Write_DATA(0x01,0x00);//setSSandSMbit

LCD_Write_COM(0x00,0x02);LCD_Write_DATA(0x07,0x00);//set1lineinversion

LCD_Write_COM(0x00,0x03);LCD_Write_DATA(0x10,0x30);//setGRAMwritedirectionandBGR=1.

LCD_Write_COM(0x00,0x04);LCD_Write_DATA(0x00,0x00);//Resizeregister

LCD_Write_COM(0x00,0x08);LCD_Write_DATA(0x02,0x07);//setthebackporchandfrontporch

LCD_Write_COM(0x00,0x09);LCD_Write_DATA(0x00,0x00);//setnon-displayarearefreshcycleISC[3:0]

LCD_Write_COM(0x00,0x0A);LCD_Write_DATA(0x00,0x00);//FMARKfunction

LCD_Write_COM(0x00,0x0C);LCD_Write_DATA(0x00,0x00);//RGBinterfacesetting

LCD_Write_COM(0x00,0x0D);LCD_Write_DATA(0x00,0x00);//FramemarkerPosition

LCD_Write_COM(0x00,0x0F);LCD_Write_DATA(0x00,0x00);//RGBinterfacepolarity

//

LCD_Write_COM(0x00,0x10);LCD_Write_DATA(0x00,0x00);//SAP,BT[3:0],AP,DSTB,SLP,STB

LCD_Write_COM(0x00,0x11);LCD_Write_DATA(0x00,0x07);//DC1[2:0],DC0[2:0],VC[2:0]

LCD_Write_COM(0x00,0x12);LCD_Write_DATA(0x00,0x00);//VREG1OUTvoltage

LCD_Write_COM(0x00,0x13);LCD_Write_DATA(0x00,0x00);//VDV[4:0]forVCOMamplitude

LCD_Write_COM(0x00,0x07);LCD_Write_DATA(0x00,0x01);

delayms(50);//Dis-chargecapacitorpowervoltage

LCD_Write_COM(0x00,0x10);LCD_Write_DATA(0x10,0x90);//1490//SAP,BT[3:0],AP,DSTB,SLP,STB

LCD_Write_COM(0x00,0x11);LCD_Write_DATA(0x02,0x27);//DC1[2:0],DC0[2:0],VC[2:0]

delayms(50);//Delay50ms

LCD_Write_COM(0x00,0x12);LCD_Write_DATA(0x00,0x1F);//001C//Internalreferencevoltage=Vci;

delayms(50);//Delay50ms

LCD_Write_COM(0x00,0x13);LCD_Write_DATA(0x15,0x00);//0x1000//1400SetVDV[4:0]forVCOMamplitude1A00