506 lines
11 KiB
C
506 lines
11 KiB
C
#include "sys.h"
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#include "Lcd_Driver.h"
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#include "delay.h"
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//********************************************************************************
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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//********************************************************************************
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//STM32核心板例程
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//库函数版本例程
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//本测试程序使用的是模拟SPI接口驱动
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//可自由更改接口IO配置，使用任意最少4 IO即可完成本款液晶驱动显示
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/******************************************************************************
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接口定义在Lcd_Driver.h内定义，请根据接线修改并修改相应IO初始化LCD_GPIO_Init()
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// ----------------------------------------------------------------
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// VCC 接5V或3.3v电源
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// GND 电源地
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// D1 接PB15（SDI）
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// D0 接PB13（SCL）
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// CS 接PB12 片选
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// RST 接PB14 系统复位
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// DC 接PB1 命令/数据
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// BLK 接PB0 背光控制
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// ----------------------------------------------------------------
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// #define LCD_SDI //PB15
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// #define LCD_SCL //PB13
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// #define LCD_CS //PB12
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// #define LCD_SDO //PB14
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// #define LCD_RS //PB1
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// #define LCD_BLK //PB0
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*******************************************************************************/
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/**************************************************************************************
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函数名称: void LCD_GPIO_Init(void)
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功能描述: 液晶IO初始化配置
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void LCD_GPIO_Init(void)
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{
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GPIO_InitTypeDef GPIO_Initure;
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__HAL_RCC_GPIOB_CLK_ENABLE(); //开启PB时钟
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GPIO_Initure.Pin=GPIO_PIN_0 |GPIO_PIN_1 | GPIO_PIN_12| GPIO_PIN_13| GPIO_PIN_14| GPIO_PIN_15; //PB
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GPIO_Initure.Mode=GPIO_MODE_OUTPUT_PP; //推挽输出
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GPIO_Initure.Pull=GPIO_PULLUP; //上拉
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GPIO_Initure.Speed=GPIO_SPEED_FREQ_VERY_HIGH; //高速
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HAL_GPIO_Init(GPIOB,&GPIO_Initure); //初始化
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HAL_GPIO_WritePin(GPIOB,GPIO_PIN_0,GPIO_PIN_SET); //PB0置1
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HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1,GPIO_PIN_SET); //PB1置1
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HAL_GPIO_WritePin(GPIOB,GPIO_PIN_12,GPIO_PIN_SET); //PB12置1
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HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_SET); //PB13置1
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HAL_GPIO_WritePin(GPIOB,GPIO_PIN_14,GPIO_PIN_SET); //PB14置1
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HAL_GPIO_WritePin(GPIOB,GPIO_PIN_15,GPIO_PIN_SET); //PB15置1
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LCD_BLK_SET;//开启背光
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LCD_BLK_CLR;//关闭背光
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LCD_BLK_SET;//开启背光
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}
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/**************************************************************************************
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函数名称: void SPI_WriteData(uint8_t Data)
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功能描述: 向SPI总线传输一个8位数据
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void SPI_WriteData(uint8_t Data)
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{
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unsigned char i=0;
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for(i=8;i>0;i--)
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{
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if(Data&0x80)
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LCD_SDA_SET; //输出数据
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else LCD_SDA_CLR;
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LCD_SCL_CLR;
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LCD_SCL_SET;
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Data<<=1;
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}
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}
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/**************************************************************************************
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函数名称: void SPI_WriteData(uint8_t Data)
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功能描述: 向液晶屏写一个8位指令
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_WriteIndex(uint8_t Index)
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{
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//SPI 写命令时序开始
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LCD_CS_CLR;
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LCD_RS_CLR;
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SPI_WriteData(Index);
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LCD_CS_SET;
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}
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/**************************************************************************************
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函数名称: void Lcd_WriteData(uint8_t Data)
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功能描述: 向液晶屏写一个8位数据
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_WriteData(uint8_t Data)
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{
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LCD_CS_CLR;
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LCD_RS_SET;
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SPI_WriteData(Data);
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LCD_CS_SET;
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}
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/**************************************************************************************
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函数名称: void LCD_WriteData_16Bit(uint16_t Data)
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功能描述: 向液晶屏写一个16位数据
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void LCD_WriteData_16Bit(uint16_t Data)
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{
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LCD_CS_CLR;
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LCD_RS_SET;
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SPI_WriteData(Data>>8); //写入高8位数据
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SPI_WriteData(Data); //写入低8位数据
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LCD_CS_SET;
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}
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/**************************************************************************************
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函数名称: void Lcd_WriteReg(uint8_t Index,uint8_t Data)
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功能描述: 写液晶屏寄存器
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_WriteReg(uint8_t Index,uint8_t Data)
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{
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Lcd_WriteIndex(Index);
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Lcd_WriteData(Data);
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}
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/**************************************************************************************
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函数名称: void Lcd_Reset(void)
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功能描述: 硬件IO控制液晶屏复位，如果使用的是有字库版本的屏幕，此函数无效
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_Reset(void)
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{
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LCD_RST_Clr();//RST引脚输出为高
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delay_ms(300);
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LCD_RST_Set();//RST引脚输出为低
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delay_ms(100);
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}
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/**************************************************************************************
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函数名称: void Lcd_Init(void)
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功能描述: 1.44寸 液晶屏初始化函数，液晶屏控制器是：ST7735R.
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输 入:
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输 出:
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_Init(void)
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{
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LCD_GPIO_Init();
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Lcd_Reset(); //Reset before LCD Init.
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//LCD Init For 1.44Inch LCD Panel with ST7735R.
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Lcd_WriteIndex(0x11);//Sleep exit
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delay_ms (120);
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//ST7735R Frame Rate
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Lcd_WriteIndex(0xB1);
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Lcd_WriteData(0x01);
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Lcd_WriteData(0x2C);
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Lcd_WriteData(0x2D);
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Lcd_WriteIndex(0xB2);
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Lcd_WriteData(0x01);
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Lcd_WriteData(0x2C);
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Lcd_WriteData(0x2D);
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Lcd_WriteIndex(0xB3);
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Lcd_WriteData(0x01);
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Lcd_WriteData(0x2C);
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Lcd_WriteData(0x2D);
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Lcd_WriteData(0x01);
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Lcd_WriteData(0x2C);
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Lcd_WriteData(0x2D);
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Lcd_WriteIndex(0xB4); //Column inversion
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Lcd_WriteData(0x07);
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//ST7735R Power Sequence
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Lcd_WriteIndex(0xC0);
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Lcd_WriteData(0xA2);
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Lcd_WriteData(0x02);
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Lcd_WriteData(0x84);
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Lcd_WriteIndex(0xC1);
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Lcd_WriteData(0xC5);
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Lcd_WriteIndex(0xC2);
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Lcd_WriteData(0x0A);
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Lcd_WriteData(0x00);
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Lcd_WriteIndex(0xC3);
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Lcd_WriteData(0x8A);
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Lcd_WriteData(0x2A);
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Lcd_WriteIndex(0xC4);
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Lcd_WriteData(0x8A);
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Lcd_WriteData(0xEE);
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Lcd_WriteIndex(0xC5); //VCOM
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Lcd_WriteData(0x0E);
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Lcd_WriteIndex(0x36); //MX, MY, RGB mode
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Lcd_WriteData(0xC8);
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//ST7735R Gamma Sequence
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Lcd_WriteIndex(0xe0);
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Lcd_WriteData(0x0f);
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Lcd_WriteData(0x1a);
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Lcd_WriteData(0x0f);
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Lcd_WriteData(0x18);
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Lcd_WriteData(0x2f);
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Lcd_WriteData(0x28);
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Lcd_WriteData(0x20);
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Lcd_WriteData(0x22);
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Lcd_WriteData(0x1f);
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Lcd_WriteData(0x1b);
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Lcd_WriteData(0x23);
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Lcd_WriteData(0x37);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x07);
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Lcd_WriteData(0x02);
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Lcd_WriteData(0x10);
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Lcd_WriteIndex(0xe1);
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Lcd_WriteData(0x0f);
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Lcd_WriteData(0x1b);
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Lcd_WriteData(0x0f);
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Lcd_WriteData(0x17);
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Lcd_WriteData(0x33);
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Lcd_WriteData(0x2c);
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Lcd_WriteData(0x29);
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Lcd_WriteData(0x2e);
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Lcd_WriteData(0x30);
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Lcd_WriteData(0x30);
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Lcd_WriteData(0x39);
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Lcd_WriteData(0x3f);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x07);
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Lcd_WriteData(0x03);
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Lcd_WriteData(0x10);
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Lcd_WriteIndex(0x2a);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x7f);
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Lcd_WriteIndex(0x2b);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x00);
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Lcd_WriteData(0x9f);
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Lcd_WriteIndex(0xF0); //Enable test command
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Lcd_WriteData(0x01);
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Lcd_WriteIndex(0xF6); //Disable ram power save mode
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Lcd_WriteData(0x00);
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Lcd_WriteIndex(0x3A); //65k mode
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Lcd_WriteData(0x05);
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Lcd_WriteIndex(0x29);//Display on
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}
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/***************************************************************************************
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函数名：LCD_Set_Region
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功能：设置lcd显示区域，在此区域写点数据自动换行
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入口参数：xy起点和终点
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返回值：无
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//DevEBox 大越电子（嵌入式开发网）
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//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_SetRegion(uint16_t x_start,uint16_t y_start,uint16_t x_end,uint16_t y_end)
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{
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Lcd_WriteIndex(0x2a);
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Lcd_WriteData(0x00);
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Lcd_WriteData(x_start+2);
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Lcd_WriteData(0x00);
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Lcd_WriteData(x_end+2);
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Lcd_WriteIndex(0x2b);
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Lcd_WriteData(0x00);
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Lcd_WriteData(y_start+3);
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Lcd_WriteData(0x00);
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Lcd_WriteData(y_end+3);
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Lcd_WriteIndex(0x2c);
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}
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/***************************************************************************************
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函数名：LCD_Set_XY
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功能：设置lcd显示起始点
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入口参数：xy坐标
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返回值：无
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//DevEBox 大越电子（嵌入式开发网）
|
||
//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_SetXY(uint16_t x,uint16_t y)
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{
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Lcd_SetRegion(x,y,x,y);
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}
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/***************************************************************************************
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函数名：LCD_DrawPoint
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功能：画一个点
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入口参数：无
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返回值：无
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//DevEBox 大越电子（嵌入式开发网）
|
||
//淘宝店铺：mcudev.taobao.com
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//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Gui_DrawPoint(uint16_t x,uint16_t y,uint16_t Data)
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{
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Lcd_SetRegion(x,y,x+1,y+1);
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LCD_WriteData_16Bit(Data);
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}
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/***************************************************************************************
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函数名：Lcd_Clear
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功能：全屏清屏函数
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入口参数：填充颜色COLOR
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返回值：无
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//DevEBox 大越电子（嵌入式开发网）
|
||
//淘宝店铺：mcudev.taobao.com
|
||
//淘宝店铺：shop389957290.taobao.com
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**************************************************************************************/
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void Lcd_Clear(uint16_t Color)
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{
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unsigned int i,m;
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Lcd_SetRegion(0,0,X_MAX_PIXEL-1,Y_MAX_PIXEL-1);
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Lcd_WriteIndex(0x2C);
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for(i=0;i<X_MAX_PIXEL;i++)
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for(m=0;m<Y_MAX_PIXEL;m++)
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{
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LCD_WriteData_16Bit(Color);
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}
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}
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/**************************************************************************************
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//DevEBox 大越电子（嵌入式开发网）
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||
//淘宝店铺：mcudev.taobao.com
|
||
//淘宝店铺：shop389957290.taobao.com
|
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**************************************************************************************/
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