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#include "lcd.h"
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#include <SPI.h>
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SPIClass * vspi = NULL;
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/******************************************************************************
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函数说明：LCD串行数据写入函数
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入口数据：dat 要写入的串行数据
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返回值： 无
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******************************************************************************/
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void LCD_Writ_Bus(uint8_t dat)
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{
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/*
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uint8_t i;
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digitalWrite(LCD_CS,0);
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for(i=0;i<8;i++)
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{
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digitalWrite(LCD_SCL,0);
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if(dat&0x80)
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digitalWrite(LCD_SDA,1);
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else
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digitalWrite(LCD_SDA,0);
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digitalWrite(LCD_SCL,1);
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dat<<=1;
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}
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digitalWrite(LCD_CS,1);
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*/
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vspi->transfer(dat);
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}
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/******************************************************************************
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函数说明：LCD写入数据
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入口数据：dat 写入的数据
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返回值： 无
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******************************************************************************/
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void LCD_WR_DATA8(uint8_t dat)
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{
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digitalWrite(LCD_DS,1);//写数据
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LCD_Writ_Bus(dat);
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}
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/******************************************************************************
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函数说明：LCD写入数据
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入口数据：dat 写入的数据
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返回值： 无
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******************************************************************************/
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void LCD_WR_DATA(uint16_t dat)
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{
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digitalWrite(LCD_DS,1);//写数据
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LCD_Writ_Bus(dat>>8);
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LCD_Writ_Bus(dat);
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}
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/******************************************************************************
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函数说明：LCD写入命令
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入口数据：dat 写入的命令
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返回值： 无
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******************************************************************************/
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void LCD_WR_REG(uint8_t dat)
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{
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digitalWrite(LCD_DS,0);//写命令
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LCD_Writ_Bus(dat);
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}
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/******************************************************************************
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函数说明：设置起始和结束地址
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入口数据：x1,x2 设置列的起始和结束地址
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y1,y2 设置行的起始和结束地址
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返回值： 无
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******************************************************************************/
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void LCD_Address_Set(uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2)
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{
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if(USE_HORIZONTAL==0)
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{
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LCD_WR_REG(0x2a);//列地址设置
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LCD_WR_DATA(x1);
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LCD_WR_DATA(x2);
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LCD_WR_REG(0x2b);//行地址设置
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LCD_WR_DATA(y1);
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LCD_WR_DATA(y2);
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LCD_WR_REG(0x2c);//储存器写
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}
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else if(USE_HORIZONTAL==1)
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{
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LCD_WR_REG(0x2a);//列地址设置
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LCD_WR_DATA(x1);
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LCD_WR_DATA(x2);
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LCD_WR_REG(0x2b);//行地址设置
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LCD_WR_DATA(y1+80);
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LCD_WR_DATA(y2+80);
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LCD_WR_REG(0x2c);//储存器写
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}
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else if(USE_HORIZONTAL==2)
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{
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LCD_WR_REG(0x2a);//列地址设置
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LCD_WR_DATA(x1);
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LCD_WR_DATA(x2);
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LCD_WR_REG(0x2b);//行地址设置
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LCD_WR_DATA(y1);
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LCD_WR_DATA(y2);
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LCD_WR_REG(0x2c);//储存器写
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}
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else
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{
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LCD_WR_REG(0x2a);//列地址设置
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LCD_WR_DATA(x1+80);
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LCD_WR_DATA(x2+80);
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LCD_WR_REG(0x2b);//行地址设置
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LCD_WR_DATA(y1);
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LCD_WR_DATA(y2);
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LCD_WR_REG(0x2c);//储存器写
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}
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}
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/******************************************************************************
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函数说明：LCD初始化函数
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入口数据：无
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返回值： 无
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******************************************************************************/
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void Lcd_Init(void)
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{
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//************* Start Initial Sequence **********//
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LCD_WR_REG(0x36);
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if(USE_HORIZONTAL==0)LCD_WR_DATA8(0x00);
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else if(USE_HORIZONTAL==1)LCD_WR_DATA8(0xC0);
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else if(USE_HORIZONTAL==2)LCD_WR_DATA8(0x70);
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else LCD_WR_DATA8(0xA0);
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LCD_WR_REG(0x3A);
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LCD_WR_DATA8(0x05);
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LCD_WR_REG(0xB2);
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LCD_WR_DATA8(0x0C);
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LCD_WR_DATA8(0x0C);
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LCD_WR_DATA8(0x00);
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LCD_WR_DATA8(0x33);
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LCD_WR_DATA8(0x33);
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LCD_WR_REG(0xB7);
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LCD_WR_DATA8(0x35);
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LCD_WR_REG(0xBB);
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LCD_WR_DATA8(0x19);
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LCD_WR_REG(0xC0);
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LCD_WR_DATA8(0x2C);
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LCD_WR_REG(0xC2);
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LCD_WR_DATA8(0x01);
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LCD_WR_REG(0xC3);
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LCD_WR_DATA8(0x12);
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LCD_WR_REG(0xC4);
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LCD_WR_DATA8(0x20);
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LCD_WR_REG(0xC6);
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LCD_WR_DATA8(0x0F);
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LCD_WR_REG(0xD0);
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LCD_WR_DATA8(0xA4);
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LCD_WR_DATA8(0xA1);
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LCD_WR_REG(0xE0);
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LCD_WR_DATA8(0xD0);
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LCD_WR_DATA8(0x04);
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LCD_WR_DATA8(0x0D);
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LCD_WR_DATA8(0x11);
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LCD_WR_DATA8(0x13);
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LCD_WR_DATA8(0x2B);
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LCD_WR_DATA8(0x3F);
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LCD_WR_DATA8(0x54);
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LCD_WR_DATA8(0x4C);
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LCD_WR_DATA8(0x18);
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LCD_WR_DATA8(0x0D);
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LCD_WR_DATA8(0x0B);
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LCD_WR_DATA8(0x1F);
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LCD_WR_DATA8(0x23);
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LCD_WR_REG(0xE1);
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LCD_WR_DATA8(0xD0);
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LCD_WR_DATA8(0x04);
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LCD_WR_DATA8(0x0C);
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LCD_WR_DATA8(0x11);
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LCD_WR_DATA8(0x13);
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LCD_WR_DATA8(0x2C);
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LCD_WR_DATA8(0x3F);
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LCD_WR_DATA8(0x44);
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LCD_WR_DATA8(0x51);
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LCD_WR_DATA8(0x2F);
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LCD_WR_DATA8(0x1F);
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LCD_WR_DATA8(0x1F);
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LCD_WR_DATA8(0x20);
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LCD_WR_DATA8(0x23);
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LCD_WR_REG(0x21);
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LCD_WR_REG(0x11);
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//Delay (120);
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LCD_WR_REG(0x29);
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}
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/******************************************************************************
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函数说明：LCD清屏函数
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入口数据：无
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返回值： 无
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******************************************************************************/
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void LCD_Clear(uint16_t Color)
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{
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uint16_t i,j;
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LCD_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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void LCD_Clear_Rand()
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{
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uint16_t i,j;
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LCD_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(rand());
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}
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}
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}
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unsigned int rgb555torgb565(unsigned int c)
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{
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c=c&0x7fff;
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unsigned int r=c>>10;
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c=c&0x03ff;
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unsigned int g=c>>5;
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c=c&0x001f;
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unsigned int b=c;
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unsigned int output=0;
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g=g*2;
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output= (r<<11)|(g<<5)|(b);
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return output;
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}
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void lcd_init()
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{
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pinMode(LCD_SDA, OUTPUT);
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pinMode(LCD_SCL, OUTPUT);
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pinMode(LCD_CS, OUTPUT);
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pinMode(LCD_DS, OUTPUT);
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digitalWrite(LCD_SDA,0);
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digitalWrite(LCD_SCL,0);
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digitalWrite(LCD_CS,0);
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digitalWrite(LCD_DS,0);
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vspi = new SPIClass(VSPI);
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vspi->begin(VSPI_SCLK, VSPI_MISO, VSPI_MOSI, VSPI_SS);
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vspi->beginTransaction(SPISettings(spiClk, MSBFIRST, SPI_MODE0));
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pinMode(vspi->pinSS(), OUTPUT); //HSPI SS
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digitalWrite(vspi->pinSS(), LOW); //pull SS slow to prep other end for transfer
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pinMode(LCD_LED, OUTPUT);
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digitalWrite(LCD_LED,1);
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Lcd_Init();
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}
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