STM32F103 SPI协议触摸TFT彩屏C程序

/* ************************************************* * Filename ：TFT彩屏的综合显示 * Writer ：张纪宽 * Date ：2011/10/20 * Description ：符合大多数彩屏的显示，包括所有子 显示函数 ************************************************ */ /* ********************************************** * INCLUDE ********************************************** */ #include "ILI93xx.h" #include "ASCII.h" #include "usart.h" #include "delay.h" #include "HZ.h" //字库文件库 //画笔颜色默认红,背景颜色默认白 u16 POINT_COLOR = 0x0000,BACK_COLOR = 0xFFFF; //都回得显示屏型号 u16 DeviceCode; //写寄存器 地址（已用符号定义了），数据 void LCD_WriteReg(u8 LCD_Reg,u16 LCD_RegValue) { LCD_WR_REG(LCD_Reg); LCD_WR_DATA(LCD_RegValue); } //读寄存器 u16 LCD_ReadReg(u8 LCD_Reg) { u16 t; LCD_WR_REG(LCD_Reg); //写入要读的寄存器号 GPIOC->CRL=0X88888888; //PC0-7 上拉输入 GPIOB->CRH=0X88888888; //PB8-15 上拉输入 GPIOC->ODR|=0X00ff; //全部输出高 GPIOB->ODR|=0Xff00; //全部输出高 #ifdef LCD_FAST_IO //快速IO 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; delay_us(5);//FOR 8989,延时5us LCD_RD_SET; t=DATAIN; LCD_CS_SET; #else //普通IO LCD_RS=1; LCD_CS=0; //读取数据(读寄存器时,并不需要读2次) LCD_RD=0; LCD_RD=1; t=DATAIN; LCD_CS=1; #endif GPIOC->CRL=0X33333333; //PB0-7 上拉输出 GPIOB->CRH=0X33333333; //PB8-15 上拉输出 GPIOC->ODR|=0X00FF; //全部输出高 GPIOB->ODR|=0XFF00; //全部输出高 return t; } //开始写GRAM地址 void LCD_WriteRAM_Prepare(void) { LCD_WR_REG(R34); } //LCD写GRAM数据 void LCD_WriteRAM(u16 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 u16 LCD_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); } //读取个某点的颜色值 //x:0~239 //y:0~319 //返回值:此点的颜色 u16 LCD_ReadPoint(u16 x,u16 y) { u16 t; if(x>=LCD_W||y>=LCD_H)return 0;//超过了范围,直接返回 LCD_SetCursor(x,y); LCD_WR_REG(R34); //选择GRAM地址 GPIOC->CRL=0X88888888; //PB0-7 上拉输入 GPIOB->CRH=0X88888888; //PB8-15 上拉输入 GPIOC->ODR|=0X00FF; //全部输出高 GPIOB->ODR|=0XFF00; //全部输出高 #ifdef LCD_FAST_IO //快速IO LCD_RS_SET; LCD_CS_CLR; //读取数据(读GRAM时,需要读2次) LCD_RD_CLR; LCD_RD_SET; delay_us(2);//FOR 9320,延时2us //dummy READ LCD_RD_CLR; delay_us(2);//FOR 8989,延时2us LCD_RD_SET; t=DATAIN; LCD_CS_SET; #else LCD_RS=1; LCD_CS=0; //读取数据(读GRAM时,需要读2次) LCD_RD=0; LCD_RD=1; //dummy READ LCD_RD=0; LCD_RD=1; t=DATAIN; LCD_CS=1; #endif GPIOC->CRL=0X33333333; //PC0-7 上拉输出 GPIOB->CRH=0X33333333; //PB8-15 上拉输出 GPIOC->ODR|=0X00FF; //全部输出高 GPIOB->ODR|=0XFF00; //全部输出高 if(DeviceCode==0X4531||DeviceCode==0X8989)return t;//4531/8989驱动IC else return LCD_BGR2RGB(t); } //LCD开启显示 __inline void LCD_DisplayOn(void)//程序在运行中展开，但是不能用于全局 { LCD_WriteReg(R7, 0x0173); //26万色显示开启 } //LCD关闭显示 void LCD_DisplayOff(void) { LCD_WriteReg(R7, 0x0);//关闭显示 } //设置光标位置 //Xpos:横坐标 //Ypos:纵坐标 //__inline声明函数，函数在被调用的地方被展开，省去函数调用的开销 __inline void LCD_SetCursor(u16 Xpos, u16 Ypos) { #ifdef USE_HORIZONTAL if(DeviceCode==0X8989) { LCD_WriteReg(0X4E, Ypos); LCD_WriteReg(0X4F, 319-Xpos); }else { LCD_WriteReg(R32, Ypos); LCD_WriteReg(R33, 319-Xpos); } #else if(DeviceCode==0X8989) { LCD_WriteReg(0X4E, Xpos); LCD_WriteReg(0X4F, Ypos); }else { LCD_WriteReg(R32, Xpos); LCD_WriteReg(R33, Ypos); } #endif } //画点 //x:0~239 //y:0~319 //POINT_COLOR:此点的颜色 void LCD_DrawPoint(u16 x,u16 y) { LCD_SetCursor(x,y);//设置光标位置 LCD_WR_REG(R34);//开始写入GRAM LCD_WR_DATA(POINT_COLOR); } //初始化lcd //该初始化函数可以初始化各种ILI93XX液晶,但是其他函数是基于ILI9320的!!! //在其他型号的驱动芯片上没有测试! void LCD_Init(void) { RCC->APB2ENR|=1<<3;//先使能外设PORTB时钟 RCC->APB2ENR|=1<<4;//先使能外设PORTC时钟 RCC->APB2ENR|=1<<0; //开启辅助时钟 JTAG_Set(SWD_ENABLE); //开启SWD //PORTC0~12推挽输出 GPIOC->CRH&=0XFFF00000; GPIOC->CRH|=0X00033333; GPIOC->CRL=0X33333333; GPIOC->ODR|=0X1FFF; //PORTB0_7 推挽输出 GPIOB->CRH=0X33333333; GPIOB->ODR|=0XFF00; delay_ms(50); // delay 50 ms LCD_WriteReg(0x0000,0x0001); delay_ms(50); // delay 50 ms DeviceCode =LCD_ReadReg(0x0000); // printf(" LCD ID:%x\n",DeviceCode); //打印LCD ID if(DeviceCode==0x9325||DeviceCode==0x9328)//ILI9325 { LCD_WriteReg(0x00e7,0x0010); LCD_WriteReg(0x0000,0x0001);//开启内部时钟 LCD_WriteReg(0x0001,0x0100); LCD_WriteReg(0x0002,0x0700);//电源开启 //LCD_WriteReg(0x0003,(1<<3)|(1<<4) ); //65K RGB //DRIVE TABLE(寄存器 03H) //BIT3=AM BIT4:5=ID0:1 //AM ID0 ID1 FUNCATION // 0 0 0 R->L D->U // 1 0 0 D->U R->L // 0 1 0 L->R D->U // 1 1 0 D->U L->R // 0 0 1 R->L U->D // 1 0 1 U->D R->L // 0 1 1 L->R U->D 正常就用这个. // 1 1 1 U->D L->R LCD_WriteReg(0x0003,(1<<12)|(3<<4)|(0<<3) );//65K LCD_WriteReg(0x0004,0x0000); LCD_WriteReg(0x0008,0x0207); LCD_WriteReg(0x0009,0x0000); LCD_WriteReg(0x000a,0x0000);//display setting LCD_WriteReg(0x000c,0x0001);//display setting LCD_WriteReg(0x000d,0x0000);//0f3c LCD_WriteReg(0x000f,0x0000); //电源配置 LCD_WriteReg(0x0010,0x0000); LCD_WriteReg(0x0011,0x0007); LCD_WriteReg(0x0012,0x0000); LCD_WriteReg(0x0013,0x0000); delay_ms(50); LCD_WriteReg(0x0010,0x1590); LCD_WriteReg(0x0011,0x0227); delay_ms(50); LCD_WriteReg(0x0012,0x009c); delay_ms(50); LCD_WriteReg(0x0013,0x1900); LCD_WriteReg(0x0029,0x0023); LCD_WriteReg(0x002b,0x000e); delay_ms(50); LCD_WriteReg(0x0020,0x0000); LCD_WriteReg(0x0021,0x013f); delay_ms(50); //伽马校正 LCD_WriteReg(0x0030,0x0007); LCD_WriteReg(0x0031,0x0707); LCD_WriteReg(0x0032,0x0006); LCD_WriteReg(0x0035,0x0704); LCD_WriteReg(0x0036,0x1f04); LCD_WriteReg(0x0037,0x0004); LCD_WriteReg(0x0038,0x0000); LCD_WriteReg(0x0039,0x0706); LCD_WriteReg(0x003c,0x0701); LCD_WriteReg(0x003d,0x000f); delay_ms(50); LCD_WriteReg(0x0050,0x0000); //水平GRAM起始位置 LCD_WriteReg(0x0051,0x00ef); //水平GRAM终止位置 LCD_WriteReg(0x0052,0x0000); //垂直GRAM起始位置 LCD_WriteReg(0x0053,0x013f); //垂直GRAM终止位置 LCD_WriteReg(0x0060,0xa700); LCD_WriteReg(0x0061,0x0001); LCD_WriteReg(0x006a,0x0000); LCD_WriteReg(0x0080,0x0000); LCD_WriteReg(0x0081,0x0000); LCD_WriteReg(0x0082,0x0000); LCD_WriteReg(0x0083,0x0000); LCD_WriteReg(0x0084,0x0000); LCD_WriteReg(0x0085,0x0000); LCD_WriteReg(0x0090,0x0010); LCD_WriteReg(0x0092,0x0000); LCD_WriteReg(0x0093,0x