/*---------------------------------------------------------------------*/ /* --- STC MCU Limited ------------------------------------------------*/ /* --- STC 1T Series MCU Demo Programme -------------------------------*/ /* --- Mobile: (86)13922805190 ----------------------------------------*/ /* --- Fax: 86-0513-55012956,55012947,55012969 ------------------------*/ /* --- Tel: 86-0513-55012928,55012929,55012966 ------------------------*/ /* --- Web: www.STCMCU.com --------------------------------------------*/ /* --- Web: www.STCMCUDATA.com ---------------------------------------*/ /* --- QQ: 800003751 -------------------------------------------------*/ /* 如果要在程序中使用此代码,请在程序中注明使用了STC的资料及程序 */ /*---------------------------------------------------------------------*/ #include "STC8A_BMM.h" #include "STC8A_GPIO.h" #include "STC8A_LCM.h" #include "STC8A_NVIC.h" #include "STC8A_Delay.h" #include "STC8A_Switch.h" #include "font.h" /************* 功能说明 *************** LCM接口+BMM驱动液晶屏程序 8bit I8080模式, P2口接D8~D15 sbit LCD_RS = P4^1; //数据/命令切换 sbit LCD_WR = P3^6; //写控制 sbit LCD_RD = P3^7; //读控制 sbit LCD_CS = P3^4; //片选 sbit LCD_RESET = P3^5; //复位 LCM指令通过中断方式等待发送完成 BMM设置长度256字节，通过中断方式判断传输完成 下载时, 选择时钟 22.1184MHz (可以在配置文件"config.h"中修改). ******************************************/ /************* 本地常量声明 **************/ #define LCD_DataPort P2 //8位数据口 //支持横竖屏快速定义切换 #define USE_HORIZONTAL 1 //定义液晶屏显示方向 0-竖屏，1-横屏 //画笔颜色 #define WHITE 0xFFFF #define BLACK 0x0000 #define BLUE 0x001F #define BRED 0XF81F #define GRED 0XFFE0 #define GBLUE 0X07FF #define RED 0xF800 #define MAGENTA 0xF81F #define GREEN 0x07E0 #define CYAN 0x7FFF #define YELLOW 0xFFE0 #define BROWN 0XBC40 //棕色 #define BRRED 0XFC07 //棕红色 #define GRAY 0X8430 //灰色 /************* 本地变量声明 **************/ u16 LCD_W; //LCD 宽度 u16 LCD_H; //LCD 高度 u16 POINT_COLOR=0x0000; //画笔颜色 u16 LCM_Cnt; u16 xdata Buffer[8]={0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88}; u16 xdata Color[256]; bit BmmLcmFlag; bit LcmFlag; /************* 本地函数声明 **************/ void Test_Color(void); void LCD_WR_DATA_16Bit(u16 Data); void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd); u16 LCD_Read_ID(void); void Show_Str(u16 x, u16 y, u16 fc, u16 bc, u8 *str,u8 size,u8 mode); void LCD_Init(void); /************* 外部函数和变量声明 *****************/ /******************** IO口配置 ********************/ void GPIO_config(void) { P2_MODE_OUT_PP(GPIO_Pin_All); //P2 设置成推挽输出 P3_MODE_OUT_PP(GPIO_Pin_HIGH); //P3.4~P3.7口设置成推挽输出 P4_MODE_OUT_PP(GPIO_Pin_1); //P4.1 设置成推挽输出 LCM_CTRL_SW(LCM_CTRL_P41_P37_P36); //LCM_CTRL_P41_P44_P43,LCM_CTRL_P41_P37_P36,LCM_CTRL_P41_P42_P40,LCM_CTRL_P40_P37_P36 LCM_DATA_SW(LCM_D8_NA_P2); //LCM_D8_NA_P2,LCM_D8_NA_P6 / LCM_D16_P2_P0,LCM_D16_P6_P2,LCM_D16_P2_P7,LCM_D16_P6_P7 } /******************** LCM 配置 ********************/ void LCM_config(void) { LCM_InitTypeDef LCM_InitStructure; //结构定义 LCM_InitStructure.LCM_Enable = ENABLE; //LCM接口使能 ENABLE,DISABLE LCM_InitStructure.LCM_Mode = MODE_I8080; //LCM接口模式 MODE_I8080,MODE_M6800 LCM_InitStructure.LCM_Bit_Wide = BIT_WIDE_8; //LCM数据宽度 BIT_WIDE_8,BIT_WIDE_16 LCM_InitStructure.LCM_Setup_Time = 2; //LCM通信数据建立时间 0~7 LCM_InitStructure.LCM_Hold_Time = 1; //LCM通信数据保持时间 0~3 LCM_Inilize(&LCM_InitStructure); //初始化 NVIC_LCM_Init(ENABLE,Priority_0); //中断使能, ENABLE/DISABLE; 优先级(低到高) Priority_0,Priority_1,Priority_2,Priority_3 } /******************** BMM 配置 ********************/ void BMM_config(void) { BMM_LCM_InitTypeDef BMM_LCM_InitStructure; //结构定义 BMM_LCM_InitStructure.BMM_Enable = ENABLE; //BMM使能 ENABLE,DISABLE BMM_LCM_InitStructure.BMM_Length = 255; //BMM传输总字节数 (0~255) + 1 BMM_LCM_InitStructure.BMM_Tx_Buffer = &Color; //发送数据存储地址 BMM_LCM_InitStructure.BMM_Rx_Buffer = &Buffer; //接收数据存储地址 BMM_LCM_Inilize(&BMM_LCM_InitStructure); //初始化 NVIC_BMM_LCM_Init(ENABLE,Priority_0,Priority_0); //中断使能, ENABLE/DISABLE; 优先级(低到高) Priority_0~Priority_3; 总线优先级(低到高) Priority_0~Priority_3 } /******************** task A **************************/ void main(void) { GPIO_config(); LCM_config(); BMM_config(); EA = 1; LCD_Init(); //LCM初始化 while (1) { Test_Color(); } } void LCD_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 color) { u16 i,j; u16 width=ex-sx+1; //得到填充的宽度 u16 height=ey-sy+1; //高度 LCD_SetWindows(sx,sy,ex,ey);//设置显示窗口 for(j=0,i=0;i<256;i++) { Color[i] = color; } LCM_Cnt = 600; LCD_CS=0; BMM_LCM_TRIG_WD(); //Write dat // P40 = 0; } void Test_Color(void) { u16 lcd_id; u8 buf[10] = {0}; // P40 = 0; LCD_Fill(0,0,LCD_W,LCD_H,WHITE); // P40 = 1; while(!LCD_CS); SET_LCM_BMM_LEN(0x01); //Exe 2(n+1) bytes lcd_id = LCD_Read_ID(); sprintf((char *)buf,"ID:0x%x",lcd_id); Show_Str(50,25,BLUE,YELLOW,buf,16,1); SET_LCM_BMM_LEN(0xff); //Exe 256(n+1) bytes delay_ms(800); // P40 = 0; LCD_Fill(0,0,LCD_W,LCD_H,RED); // P40 = 1; delay_ms(800); // P40 = 0; LCD_Fill(0,0,LCD_W,LCD_H,GREEN); // P40 = 1; delay_ms(800); // P40 = 0; LCD_Fill(0,0,LCD_W,LCD_H,BLUE); // P40 = 1; delay_ms(800); } void Write_Cmd(unsigned char DH,unsigned char DL) { SET_LCM_DAT_LOW(DH); LCD_CS = 0; LcmFlag = 1; LCM_WRITE_CMD(); //Enable interface, write command out while(LcmFlag); SET_LCM_DAT_LOW(DL); LcmFlag = 1; LCM_WRITE_CMD(); //Enable interface, write command out while(LcmFlag); LCD_CS = 1 ; } void Write_Data(unsigned char DH,unsigned char DL) { SET_LCM_DAT_LOW(DH); LCD_CS = 0; LcmFlag = 1; LCM_WRITE_DAT(); //Enable interface, write data out while(LcmFlag); SET_LCM_DAT_LOW(DL); LcmFlag = 1; LCM_WRITE_DAT(); //Enable interface, write data out while(LcmFlag); LCD_CS = 1 ; } void LCD_WR_REG(u8 Reg) { SET_LCM_DAT_LOW(Reg); LCD_CS = 0; LcmFlag = 1; LCM_WRITE_CMD(); //Enable interface, write command out while(LcmFlag); LCD_CS = 1 ; } u16 LCD_RD_DATA(void) { //BMM Read LCD_CS=0; BmmLcmFlag = 1; BMM_LCM_TRIG_RD(); //Read data while(BmmLcmFlag); LCD_CS=1; return (Buffer[0]); } void LCD_WR_REG16(u8 Reg, u16 dat) { Write_Cmd(0x00,Reg); Write_Data((dat>>8)&0xFF,dat&0xFF); } void LCD_WR_DATA_16Bit(u16 Data) { Write_Data((Data>>8)&0xFF,Data&0xFF); } /***************************************************************************** * @name :u16 LCD_Read_ID(void) * @date :2020-12-11 * @function :Read ID * @parameters :None * @retvalue :ID value ******************************************************************************/ u16 LCD_Read_ID(void) { u16 val; LCD_WR_REG(0x00); //ID: Status Read (RS) val = LCD_RD_DATA(); return (val); } /***************************************************************************** * @name :void LCDReset(void) * @date :2018-08-09 * @function :Reset LCD screen * @parameters :None * @retvalue :None ******************************************************************************/ void LCDReset(void) { LCD_CS=1; delay_ms(50); LCD_RESET=0; delay_ms(150); LCD_RESET=1; delay_ms(50); } /***************************************************************************** * @name :void LCD_Init(void) * @date :2018-08-09 * @function :Initialization LCD screen * @parameters :None * @retvalue :None ******************************************************************************/ void LCD_Init(void) { LCDReset(); //初始化之前复位 delay_ms(150); //根据不同晶振速度可以调整延时，保障稳定显示 //*************2.4inch ILI9325初始化**********// LCD_WR_REG16(0x00E5,0x78F0); LCD_WR_REG16(0x0001,0x0100); LCD_WR_REG16(0x0002,0x0700); LCD_WR_REG16(0x0003,0x1030); LCD_WR_REG16(0x0004,0x0000); LCD_WR_REG16(0x0008,0x0202); LCD_WR_REG16(0x0009,0x0000); LCD_WR_REG16(0x000A,0x0000); LCD_WR_REG16(0x000C,0x0000); LCD_WR_REG16(0x000D,0x0000); LCD_WR_REG16(0x000F,0x0000); //power on sequence VGHVGL LCD_WR_REG16(0x0010,0x0000); LCD_WR_REG16(0x0011,0x0007); LCD_WR_REG16(0x0012,0x0000); LCD_WR_REG16(0x0013,0x0000); LCD_WR_REG16(0x0007,0x0000); //vgh LCD_WR_REG16(0x0010,0x1690); LCD_WR_REG16(0x0011,0x0227); delay_ms(10); //vregiout LCD_WR_REG16(0x0012,0x009D); //0x001b delay_ms(10); //vom amplitude LCD_WR_REG16(0x0013,0x1900); delay_ms(10); //vom H LCD_WR_REG16(0x0029,0x0025); LCD_WR_REG16(0x002B,0x000D); //gamma LCD_WR_REG16(0x0030,0x0007); LCD_WR_REG16(0x0031,0x0303); LCD_WR_REG16(0x0032,0x0003); //0006 LCD_WR_REG16(0x0035,0x0206); LCD_WR_REG16(0x0036,0x0008); LCD_WR_REG16(0x0037,0x0406); LCD_WR_REG16(0x0038,0x0304); //0200 LCD_WR_REG16(0x0039,0x0007); LCD_WR_REG16(0x003C,0x0602); //0504 LCD_WR_REG16(0x003D,0x0008); //ram LCD_WR_REG16(0x0050,0x0000); LCD_WR_REG16(0x0051,0x00EF); LCD_WR_REG16(0x0052,0x0000); LCD_WR_REG16(0x0053,0x013F); LCD_WR_REG16(0x0060,0xA700); LCD_WR_REG16(0x0061,0x0001); LCD_WR_REG16(0x006A,0x0000); // LCD_WR_REG16(0x0080,0x0000); LCD_WR_REG16(0x0081,0x0000); LCD_WR_REG16(0x0082,0x0000); LCD_WR_REG16(0x0083,0x0000); LCD_WR_REG16(0x0084,0x0000); LCD_WR_REG16(0x0085,0x0000); // LCD_WR_REG16(0x0090,0x0010); LCD_WR_REG16(0x0092,0x0600); LCD_WR_REG16(0x0007,0x0133); LCD_WR_REG16(0x0000,0x0022); //设置LCD属性参数 #if USE_HORIZONTAL==1 LCD_W = 320; LCD_H = 240; LCD_WR_REG16(0x0003, 0x1038); // set GRAM write direction and BGR=1. LCD_WR_REG16(0x0001, 0x0000); // set SS and SM bit #else LCD_W = 240; LCD_H = 320; LCD_WR_REG16(0x0003, 0x1030); // set GRAM write direction and BGR=1. LCD_WR_REG16(0x0001, 0x0100); // set SS and SM bit #endif } #define WINDOW_XADDR_START 0x0050 // Horizontal Start Address Set #define WINDOW_XADDR_END 0x0051 // Horizontal End Address Set #define WINDOW_YADDR_START 0x0052 // Vertical Start Address Set #define WINDOW_YADDR_END 0x0053 // Vertical End Address Set #define GRAM_XADDR 0x0020 // GRAM Horizontal Address Set #define GRAM_YADDR 0x0021 // GRAM Vertical Address Set #define GRAMWR 0x0022 // memory write void LCD_SetWindows(u16 xStar0, u16 yStar0,u16 xEnd0,u16 yEnd0) { u16 xStar; u16 yStar;u16 xEnd;u16 yEnd; #if USE_HORIZONTAL==1 xStar = yStar0; xEnd = yEnd0; yStar = xStar0; yEnd = xEnd0; #else xStar = xStar0; xEnd = xEnd0; yStar = yStar0; yEnd = yEnd0; #endif LCD_WR_REG16(WINDOW_XADDR_START,xStar); LCD_WR_REG16(WINDOW_XADDR_END,xEnd); LCD_WR_REG16(WINDOW_YADDR_START,yStar); LCD_WR_REG16(WINDOW_YADDR_END,yEnd); LCD_WR_REG16(GRAM_XADDR,xStar); LCD_WR_REG16(GRAM_YADDR,yStar); LCD_WR_REG(GRAMWR); } /***************************************************************************** * @name :void LCD_DrawPoint(u16 x,u16 y) * @date :2018-08-09 * @function :Write a pixel data at a specified location * @parameters :x:the x coordinate of the pixel y:the y coordinate of the pixel * @retvalue :None ******************************************************************************/ void LCD_DrawPoint(u16 x,u16 y) { LCD_SetWindows(x,y,x,y);//设置光标位置 LCD_WR_DATA_16Bit(POINT_COLOR); } /***************************************************************************** * @name :void LCD_ShowChar(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 size,u8 mode) * @date :2018-08-09 * @function :Display a single English character * @parameters :x:the beginning x coordinate of the Character display position y:the beginning y coordinate of the Character display position fc:the color value of display character bc:the background color of display character num:the ascii code of display character(0~94) size:the size of display character mode:0-no overlying,1-overlying * @retvalue :None ******************************************************************************/ void LCD_ShowChar(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 size,u8 mode) { u8 temp; u8 pos,t; u16 colortemp=POINT_COLOR; num=num-' ';//得到偏移后的值 LCD_SetWindows(x,y,x+size/2-1,y+size-1);//设置单个文字显示窗口 if(!mode) //非叠加方式 { for(pos=0;pos>=1; } } } else//叠加方式 { for(pos=0;pos>=1; } } } POINT_COLOR=colortemp; LCD_SetWindows(0,0,LCD_W-1,LCD_H-1);//恢复窗口为全屏 } /***************************************************************************** * @name :void Show_Str(u16 x, u16 y, u16 fc, u16 bc, u8 *str,u8 size,u8 mode) * @date :2018-08-09 * @function :Display Chinese and English strings * @parameters :x:the beginning x coordinate of the Chinese and English strings y:the beginning y coordinate of the Chinese and English strings fc:the color value of Chinese and English strings bc:the background color of Chinese and English strings str:the start address of the Chinese and English strings size:the size of Chinese and English strings mode:0-no overlying,1-overlying * @retvalue :None ******************************************************************************/ void Show_Str(u16 x, u16 y, u16 fc, u16 bc, u8 *str,u8 size,u8 mode) { u16 x0=x; u8 bHz=0; //字符或者中文 while(*str!=0)//数据未结束 { if(!bHz) { if(x>(LCD_W-size/2)||y>(LCD_H-size)) return; if(*str>0x80) bHz=1;//中文 else //字符 { if(*str==0x0D)//换行符号 { y+=size; x=x0; str++; } else { if(size>16)//字库中没有集成12X24 16X32的英文字体,用8X16代替 { LCD_ShowChar(x,y,fc,bc,*str,16,mode); x+=8; //字符,为全字的一半 } else { LCD_ShowChar(x,y,fc,bc,*str,size,mode); x+=size/2; //字符,为全字的一半 } } str++; } } else//中文 { // if(x>(lcddev.width-size)||y>(lcddev.height-size)) // return; // bHz=0;//有汉字库 // if(size==32) // GUI_DrawFont32(x,y,fc,bc,str,mode); // else if(size==24) // GUI_DrawFont24(x,y,fc,bc,str,mode); // else // GUI_DrawFont16(x,y,fc,bc,str,mode); str+=2; x+=size;//下一个汉字偏移 } } }