490 lines
9.9 KiB
C
490 lines
9.9 KiB
C
#include "CH554.h"
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#include "common.h"
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//#include "font.h"
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//#include "sys.h"
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#include "lcd.h"
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/******************************************************
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GND=GND
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VCC=3.3V
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P00=CLK
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P01=MOSI
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P02=RES
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P03=DC
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P04=CS1
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BLK为LCD背光控制管脚，低电平关闭背光，高电平打开；默认可以不接打开背光
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////////////////////////以上是LCD工作所需要的/////////////////////////////////////
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P05=FSO
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P06=CS2
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******************************************************/
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u16 BACK_COLOR, POINT_COLOR; //背景色，画笔色
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unsigned char bdata bitdata;
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sbit bit7=bitdata^7;
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sbit bit6=bitdata^6;
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sbit bit5=bitdata^5;
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sbit bit4=bitdata^4;
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sbit bit3=bitdata^3;
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sbit bit2=bitdata^2;
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sbit bit1=bitdata^1;
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sbit bit0=bitdata^0;
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void LCD_Writ_Bus(char da) //串行数据写入
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{
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bitdata=da;
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LCD_SDI=bit7;LCD_SCK=0;LCD_SCK=1;
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LCD_SDI=bit6;LCD_SCK=0;LCD_SCK=1;
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LCD_SDI=bit5;LCD_SCK=0;LCD_SCK=1;
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LCD_SDI=bit4;LCD_SCK=0;LCD_SCK=1;
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LCD_SDI=bit3;LCD_SCK=0;LCD_SCK=1;
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LCD_SDI=bit2;LCD_SCK=0;LCD_SCK=1;
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LCD_SDI=bit1;LCD_SCK=0;LCD_SCK=1;
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LCD_SDI=bit0;LCD_SCK=0;LCD_SCK=1;
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}
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void LCD_WR_DATA8(char da) //发送数据-8位参数
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{
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LCD_CS1=0;
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LCD_DC=1;
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LCD_Writ_Bus(da);
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LCD_CS1=1;
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}
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void LCD_WR_DATA(int da)
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{
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LCD_CS1=0;
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LCD_DC=1;
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LCD_Writ_Bus(da>>8);
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LCD_Writ_Bus(da);
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LCD_CS1=1;
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}
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void LCD_WR_REG(char da)
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{
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LCD_CS1=0;
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LCD_DC=0;
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LCD_Writ_Bus(da);
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LCD_CS1=1;
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}
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void LCD_WR_REG_DATA(int reg,int da)
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{
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LCD_WR_REG(reg);
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LCD_WR_DATA(da);
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}
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void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
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{
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LCD_WR_REG(0x2a);
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LCD_WR_DATA8(0x02);
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LCD_WR_DATA8(x1+2);
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LCD_WR_DATA8(0x02);
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LCD_WR_DATA8(x2+2);
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LCD_WR_REG(0x2b);
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LCD_WR_DATA8(0x01);
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LCD_WR_DATA8(y1+1);
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LCD_WR_DATA8(0x01);
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LCD_WR_DATA8(y2+1);
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LCD_WR_REG(0x2C);
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}
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void Lcd_Init(void)
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{//LCD_BLK=1;
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//调用一次这些函数，免得编译的时候提示警告
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// LCD_WR_REG_DATA(0,0);
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// LCD_ShowString(0,0," ");
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// LCD_ShowNum(0,0,0,0);
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// LCD_Show2Num(0,0,0,0);
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// LCD_DrawPoint_big(0,0);
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// LCD_DrawRectangle(0,0,0,0);
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// Draw_Circle(0,0,0);
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LCD_REST=0;
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delayms(20);
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LCD_REST=1;
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delayms(20);
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LCD_WR_REG(0x11);//Sleep exit
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delayms (120);
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//ST7735R Frame Rate
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LCD_WR_REG(0xB1);
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LCD_WR_DATA8(0x01);
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LCD_WR_DATA8(0x2C);
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LCD_WR_DATA8(0x2D);
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LCD_WR_REG(0xB2);
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LCD_WR_DATA8(0x01);
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LCD_WR_DATA8(0x2C);
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LCD_WR_DATA8(0x2D);
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LCD_WR_REG(0xB3);
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LCD_WR_DATA8(0x01);
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LCD_WR_DATA8(0x2C);
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LCD_WR_DATA8(0x2D);
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LCD_WR_DATA8(0x01);
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LCD_WR_DATA8(0x2C);
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LCD_WR_DATA8(0x2D);
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LCD_WR_REG(0xB4); //Column inveLCD_DC ion
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LCD_WR_DATA8(0x07);
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//ST7735R Power Sequence
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LCD_WR_REG(0xC0);
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LCD_WR_DATA8(0xA2);
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LCD_WR_DATA8(0x02);
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LCD_WR_DATA8(0x84);
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LCD_WR_REG(0xC1);
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LCD_WR_DATA8(0xC5);
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LCD_WR_REG(0xC2);
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LCD_WR_DATA8(0x0A);
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LCD_WR_DATA8(0x00);
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LCD_WR_REG(0xC3);
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LCD_WR_DATA8(0x8A);
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LCD_WR_DATA8(0x2A);
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LCD_WR_REG(0xC4);
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LCD_WR_DATA8(0x8A);
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LCD_WR_DATA8(0xEE);
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LCD_WR_REG(0xC5); //VCOM
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LCD_WR_DATA8(0x0E);
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LCD_WR_REG(0x36); //MX, MY, RGB mode
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LCD_WR_DATA8(0xC0);
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#ifdef USE_LANDSCAPE
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LCD_WR_DATA8(0xA8); //竖屏C8 横屏08 A8
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#else
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LCD_WR_DATA8(0xC8); //竖屏C8 横屏08 A8
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#endif
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//ST7735R Gamma Sequence
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LCD_WR_REG(0xe0);
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LCD_WR_DATA8(0x0f);
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LCD_WR_DATA8(0x1a);
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LCD_WR_DATA8(0x0f);
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LCD_WR_DATA8(0x18);
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LCD_WR_DATA8(0x2f);
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LCD_WR_DATA8(0x28);
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LCD_WR_DATA8(0x20);
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LCD_WR_DATA8(0x22);
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LCD_WR_DATA8(0x1f);
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LCD_WR_DATA8(0x1b);
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LCD_WR_DATA8(0x23);
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LCD_WR_DATA8(0x37);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x07);
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LCD_WR_DATA8(0x02);
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LCD_WR_DATA8(0x10);
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LCD_WR_REG(0xe1);
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LCD_WR_DATA8(0x0f);
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LCD_WR_DATA8(0x1b);
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LCD_WR_DATA8(0x0f);
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LCD_WR_DATA8(0x17);
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LCD_WR_DATA8(0x33);
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LCD_WR_DATA8(0x2c);
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LCD_WR_DATA8(0x29);
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LCD_WR_DATA8(0x2e);
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LCD_WR_DATA8(0x30);
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LCD_WR_DATA8(0x30);
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LCD_WR_DATA8(0x39);
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LCD_WR_DATA8(0x3f);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x07);
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LCD_WR_DATA8(0x03);
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LCD_WR_DATA8(0x10);
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LCD_WR_REG(0x2a);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x00+2);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x80+2);
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LCD_WR_REG(0x2b);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x00+3);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x80+3);
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LCD_WR_REG(0xF0); //Enable test command
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LCD_WR_DATA8(0x01);
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LCD_WR_REG(0xF6); //Disable ram power save mode
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LCD_WR_DATA8(0x00);
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LCD_WR_REG(0x3A); //65k mode
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LCD_WR_DATA8(0x05);
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LCD_WR_REG(0x29);//Display on
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}
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//***************************************************************
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//清屏函数
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//Color:要清屏的填充色
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void LCD_Clear(u16 Color)
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{
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u16 i,j;
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Address_set(0,0,LCD_W-1,LCD_H-1);
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for(i=0;i<LCD_W;i++)
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{
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for (j=0;j<LCD_H;j++)
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{
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LCD_WR_DATA(Color);
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}
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}
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}
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//在指定位置显示一个汉字(32*33大小)
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//dcolor为内容颜色，gbcolor为背静颜色
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void showhanzi(unsigned int x,unsigned int y,unsigned char index)
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{
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unsigned char i,j;
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//unsigned char *temp=hanzi;
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unsigned char *temp=0;
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Address_set(x,y,x+31,y+31); //设置区域
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temp+=index*128;
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for(j=0;j<128;j++)
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{
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for(i=0;i<8;i++)
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{
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if((*temp&(1<<i))!=0)
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{
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LCD_WR_DATA(POINT_COLOR);
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}
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else
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{
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LCD_WR_DATA(BACK_COLOR);
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}
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}
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temp++;
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}
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}
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//画点
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//POINT_COLOR:此点的颜色
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void LCD_DrawPoint(u16 x,u16 y)
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{
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Address_set(x,y,x,y);//设置光标位置
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LCD_WR_DATA(POINT_COLOR);
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}
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//画一个大点
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//POINT_COLOR:此点的颜色
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void LCD_DrawPoint_big(u16 x,u16 y)
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{
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LCD_Fill(x-1,y-1,x+1,y+1,POINT_COLOR);
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}
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//在指定区域内填充指定颜色
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//区域大小:
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// (xend-xsta)*(yend-ysta)
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void LCD_Fill(u16 xsta,u16 ysta,u16 xend,u16 yend,u16 color)
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{
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u16 i,j;
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Address_set(xsta,ysta,xend,yend); //设置光标位置
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for(i=ysta;i<=yend;i++)
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{
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for(j=xsta;j<=xend;j++)LCD_WR_DATA(color);//设置光标位置
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}
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}
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//画线
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//x1,y1:起点坐标
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//x2,y2:终点坐标
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void LCD_DrawLine(u16 x1, u16 y1, u16 x2, u16 y2)
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{
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u16 t;
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int xerr=0,yerr=0,delta_x,delta_y,distance;
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int incx,incy,uRow,uCol;
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delta_x=x2-x1; //计算坐标增量
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delta_y=y2-y1;
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uRow=x1;
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uCol=y1;
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if(delta_x>0)incx=1; //设置单步方向
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else if(delta_x==0)incx=0;//垂直线
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else {incx=-1;delta_x=-delta_x;}
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if(delta_y>0)incy=1;
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else if(delta_y==0)incy=0;//水平线
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else{incy=-1;delta_y=-delta_y;}
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if( delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴
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else distance=delta_y;
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for(t=0;t<=distance+1;t++ )//画线输出
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{
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LCD_DrawPoint(uRow,uCol);//画点
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xerr+=delta_x ;
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yerr+=delta_y ;
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if(xerr>distance)
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{
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xerr-=distance;
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uRow+=incx;
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}
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if(yerr>distance)
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{
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yerr-=distance;
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uCol+=incy;
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}
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}
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}
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//画矩形
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void LCD_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2)
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{
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LCD_DrawLine(x1,y1,x2,y1);
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LCD_DrawLine(x1,y1,x1,y2);
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LCD_DrawLine(x1,y2,x2,y2);
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LCD_DrawLine(x2,y1,x2,y2);
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}
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//在指定位置画一个指定大小的圆
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//(x,y):中心点
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//r :半径
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void Draw_Circle(u16 x0,u16 y0,u8 r)
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{
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int a,b;
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int di;
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a=0;b=r;
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di=3-(r<<1); //判断下个点位置的标志
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while(a<=b)
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{
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LCD_DrawPoint(x0-b,y0-a); //3
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LCD_DrawPoint(x0+b,y0-a); //0
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LCD_DrawPoint(x0-a,y0+b); //1
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LCD_DrawPoint(x0-b,y0-a); //7
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LCD_DrawPoint(x0-a,y0-b); //2
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LCD_DrawPoint(x0+b,y0+a); //4
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LCD_DrawPoint(x0+a,y0-b); //5
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LCD_DrawPoint(x0+a,y0+b); //6
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LCD_DrawPoint(x0-b,y0+a);
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a++;
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//使用Bresenham算法画圆
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if(di<0)di +=4*a+6;
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else
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{
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di+=10+4*(a-b);
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b--;
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}
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LCD_DrawPoint(x0+a,y0+b);
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}
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}
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//在指定位置显示一个字符
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//num:要显示的字符:" "--->"~"
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//mode:叠加方式(1)还是非叠加方式(0)
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//在指定位置显示一个字符
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//num:要显示的字符:" "--->"~"
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//mode:叠加方式(1)还是非叠加方式(0)
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void LCD_ShowChar(u16 x,u16 y,u8 num,u8 mode)
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{
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u8 temp;
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u8 pos,t;
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u16 x0=x;
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u16 colortemp=POINT_COLOR;
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if(x>LCD_W-16||y>LCD_H-16)return;
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//设置窗口
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num=num-' ';//得到偏移后的值
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Address_set(x,y,x+8-1,y+16-1); //设置光标位置
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if(!mode) //非叠加方式
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{
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for(pos=0;pos<16;pos++)
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{
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//temp=asc2_1608[(u16)num*16+pos]; //调用1608字体
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for(t=0;t<8;t++)
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{
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if(temp&0x01)POINT_COLOR=colortemp;
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else POINT_COLOR=BACK_COLOR;
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LCD_WR_DATA(POINT_COLOR);
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temp>>=1;
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x++;
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}
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x=x0;
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y++;
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}
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}else//叠加方式
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{
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for(pos=0;pos<16;pos++)
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{
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//temp=asc2_1608[(u16)num*16+pos]; //调用1608字体
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for(t=0;t<8;t++)
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{
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if(temp&0x01)LCD_DrawPoint(x+t,y+pos);//画一个点
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temp>>=1;
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}
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}
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}
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POINT_COLOR=colortemp;
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}
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//m^n函数
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u32 mypow(u8 m,u8 n)
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{
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u32 result=1;
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while(n--)result*=m;
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return result;
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}
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//显示2个数字
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//x,y :起点坐标
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//len :数字的位数
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//color:颜色
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//num:数值(0~4294967295);
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void LCD_ShowNum(u16 x,u16 y,u32 num,u8 len)
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{
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u8 t,temp;
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u8 enshow=0;
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num=(u16)num;
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for(t=0;t<len;t++)
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{
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temp=(num/mypow(10,len-t-1))%10;
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if(enshow==0&&t<(len-1))
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{
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if(temp==0)
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{
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LCD_ShowChar(x+8*t,y,' ',0);
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continue;
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}else enshow=1;
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}
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LCD_ShowChar(x+8*t,y,temp+48,0);
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}
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}
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//显示2个数字
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//x,y:起点坐标
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//num:数值(0~99);
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void LCD_Show2Num(u16 x,u16 y,u16 num,u8 len)
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{
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u8 t,temp;
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for(t=0;t<len;t++)
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{
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temp=(num/mypow(10,len-t-1))%10;
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LCD_ShowChar(x+8*t,y,temp+'0',0);
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}
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}
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//显示字符串
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//x,y:起点坐标
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//*p:字符串起始地址
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//用16字体
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void LCD_ShowString(u16 x,u16 y,const u8 *p)
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{
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while(*p!='\0')
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{
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if(x>LCD_W-16){x=0;y+=16;}
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if(y>LCD_H-16){y=x=0;LCD_Clear(RED);}
|
||
LCD_ShowChar(x,y,*p,0);
|
||
x+=8;
|
||
p++;
|
||
}
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|