前言

有几天没更新了，最近一直忙着电赛，学习这个TI处理器芯片，因为我之前并没有接触过。毕竟我学的51单片机和32单片机，感觉这个16位的单片机“食之乏味，弃之可惜”，但是没办法，电赛TI公司赞助的，还是得准备准备哈哈，这里我是用CCS软件来入门的。

一、1.44寸OLED “独白”

其实相对于0.96寸OLED ，该OLED 最明显的特点就是它多出了四个接口（RES、DC、CS、BLK)，同时保留了原有的接口(VCC、GND、SCL、SDA)，下面讲一下接线问题：

电源接线：

VCC :接 5V? ? ?

GND :接地

液晶屏数据线接线：

CS? :? ? ? 片选信号

SCL（CLK）:??? ?SPI 时钟信号引脚

SDA(SDI) :? SPI 总线数据信号引脚

液晶屏控制线接线：

BLK（LED）:? ? ? ? 背光控制信号，高电平点亮

DC(RS) :? ? ?? 寄存器/数据选择信号(RS=0 数据总线发送的是指令；RS=1 数据总线发送的是像素数据)

RES（RST）:? ? ? ???液晶屏复位信号，低电平复位

上图利用MSP430F5529实现对1.44寸OLED的驱动+显示（9只小企鹅哈哈）

后面大家可以根据自己喜欢去模后显示出来，附上文字和图片取模软件：

链接：https://pan.baidu.com/s/14uSXRJGgxpHG_FlqXhDNKQ?
提取码：2580

也可以点此链接到浏览器打开：

PCtoLCD2 （）_3 次经济不等|次次要的"无政府"的"无政府之比" (baidu.com)

二、驱动OLED 主要代码

这里代码确实比较多，我就列举一些，具体会分享出来?

下面讲一下主函数：首选就是原先自带的系统时钟默认就是1MHZ，相比于32F1板的72MHZ和那肯定是不用比了，大家也可以试一下升时钟，直接运行，结果你会发现，运行速度龟速，因此升级时钟频率尤为重要，在升级时钟频率前也要先升压。

#include <msp430.h>
#include "type.h"
#include "timeup.h"
#include "QDTFT_demo.h"
#include "Lcd_Driver.h"
#include "GUI.h"
#include "Picture.h"


void main(void)
 {

    WDTCTL = WDTPW + WDTHOLD;
    upVcc();//核心电压上升
    delay_ms(200);
    timerup();//配置时钟25MHZ
    delay_ms(500);
    Lcd_Init();//初始化
    LCD_LED_SET;//通过IO控制背光亮
    showimage(gImage_qq);//取模图像的代码显示企鹅
    while(1)
    {

    }

}

?下面是关键代码：

#include "msp430.h"
#include "Lcd_Driver.h"
#include "LCD_Config.h"


//液晶IO初始化配置
void LCD_GPIO_Init(void)
{

    LCD_SDA;
    LCD_RS ;
    LCD_CS   ;
    LCD_RST ;
    LCD_SCL  ;
    LCD_LED  ;
}
//向SPI总线传输一个8位数据
void  SPI_WriteData(u8 Data)
{
	unsigned char i=0;
	for(i=8;i>0;i--)
	{
		if(Data&0x80)	
	  LCD_SDA_SET; //输出数据
      else LCD_SDA_CLR;
	   
      LCD_SCL_CLR;       
      LCD_SCL_SET;
      Data<<=1; 
	}
}

//向液晶屏写一个8位指令
void Lcd_WriteIndex(u8 Index)
{
   //SPI 写命令时序开始
   LCD_CS_CLR;
   LCD_RS_CLR;
	 SPI_WriteData(Index);
   LCD_CS_SET;
}

//向液晶屏写一个8位数据
void Lcd_WriteData(u8 Data)
{
   LCD_CS_CLR;
   LCD_RS_SET;
   SPI_WriteData(Data);
   LCD_CS_SET; 
}
//向液晶屏写一个16位数据
void LCD_WriteData_16Bit(u16 Data)
{
   LCD_CS_CLR;
   LCD_RS_SET;
	 SPI_WriteData(Data>>8); 	//写入高8位数据
	 SPI_WriteData(Data); 			//写入低8位数据
   LCD_CS_SET; 
}

void Lcd_WriteReg(u8 Index,u8 Data)
{
	Lcd_WriteIndex(Index);
  Lcd_WriteData(Data);
}

void Lcd_Reset(void)
{
	LCD_RST_CLR;
	delay_ms(100);
	LCD_RST_SET;
	delay_ms(50);
}

//LCD Init For 1.44Inch LCD Panel with ST7735R.
void Lcd_Init(void)
{	
	LCD_GPIO_Init();
	Lcd_Reset(); //Reset before LCD Init.

	//LCD Init For 1.44Inch LCD Panel with ST7735R.
	Lcd_WriteIndex(0x11);//Sleep exit 
	delay_ms (120);
		
	//ST7735R Frame Rate
	Lcd_WriteIndex(0xB1); 
	Lcd_WriteData(0x01); 
	Lcd_WriteData(0x2C); 
	Lcd_WriteData(0x2D); 

	Lcd_WriteIndex(0xB2); 
	Lcd_WriteData(0x01); 
	Lcd_WriteData(0x2C); 
	Lcd_WriteData(0x2D); 

	Lcd_WriteIndex(0xB3); 
	Lcd_WriteData(0x01); 
	Lcd_WriteData(0x2C); 
	Lcd_WriteData(0x2D); 
	Lcd_WriteData(0x01); 
	Lcd_WriteData(0x2C); 
	Lcd_WriteData(0x2D); 
	
	Lcd_WriteIndex(0xB4); //Column inversion 
	Lcd_WriteData(0x07); 
	
	//ST7735R Power Sequence
	Lcd_WriteIndex(0xC0); 
	Lcd_WriteData(0xA2); 
	Lcd_WriteData(0x02); 
	Lcd_WriteData(0x84); 
	Lcd_WriteIndex(0xC1); 
	Lcd_WriteData(0xC5); 

	Lcd_WriteIndex(0xC2); 
	Lcd_WriteData(0x0A); 
	Lcd_WriteData(0x00); 

	Lcd_WriteIndex(0xC3); 
	Lcd_WriteData(0x8A); 
	Lcd_WriteData(0x2A); 
	Lcd_WriteIndex(0xC4); 
	Lcd_WriteData(0x8A); 
	Lcd_WriteData(0xEE); 
	
	Lcd_WriteIndex(0xC5); //VCOM 
	Lcd_WriteData(0x0E); 
	
	Lcd_WriteIndex(0x36); //MX, MY, RGB mode 
	Lcd_WriteData(0xC8); 
	
	//ST7735R Gamma Sequence
	Lcd_WriteIndex(0xe0); 
	Lcd_WriteData(0x0f); 
	Lcd_WriteData(0x1a); 
	Lcd_WriteData(0x0f); 
	Lcd_WriteData(0x18); 
	Lcd_WriteData(0x2f); 
	Lcd_WriteData(0x28); 
	Lcd_WriteData(0x20); 
	Lcd_WriteData(0x22); 
	Lcd_WriteData(0x1f); 
	Lcd_WriteData(0x1b); 
	Lcd_WriteData(0x23); 
	Lcd_WriteData(0x37); 
	Lcd_WriteData(0x00); 	
	Lcd_WriteData(0x07); 
	Lcd_WriteData(0x02); 
	Lcd_WriteData(0x10); 

	Lcd_WriteIndex(0xe1); 
	Lcd_WriteData(0x0f); 
	Lcd_WriteData(0x1b); 
	Lcd_WriteData(0x0f); 
	Lcd_WriteData(0x17); 
	Lcd_WriteData(0x33); 
	Lcd_WriteData(0x2c); 
	Lcd_WriteData(0x29); 
	Lcd_WriteData(0x2e); 
	Lcd_WriteData(0x30); 
	Lcd_WriteData(0x30); 
	Lcd_WriteData(0x39); 
	Lcd_WriteData(0x3f); 
	Lcd_WriteData(0x00); 
	Lcd_WriteData(0x07); 
	Lcd_WriteData(0x03); 
	Lcd_WriteData(0x10);  
	
	Lcd_WriteIndex(0x2a);
	Lcd_WriteData(0x00);
	Lcd_WriteData(0x00);
	Lcd_WriteData(0x00);
	Lcd_WriteData(0x7f);

	Lcd_WriteIndex(0x2b);
	Lcd_WriteData(0x00);
	Lcd_WriteData(0x00);
	Lcd_WriteData(0x00);
	Lcd_WriteData(0x9f);
	
	Lcd_WriteIndex(0xF0); //Enable test command  
	Lcd_WriteData(0x01); 
	Lcd_WriteIndex(0xF6); //Disable ram power save mode 
	Lcd_WriteData(0x00); 
	
	Lcd_WriteIndex(0x3A); //65k mode 
	Lcd_WriteData(0x05); 
	
	
	Lcd_WriteIndex(0x29);//Display on	 
}


/*************************************************
函数名：LCD_Set_Region
功能：设置lcd显示区域，在此区域写点数据自动换行
入口参数：xy起点和终点
返回值：无
*************************************************/
void Lcd_SetRegion(u16 x_start,u16 y_start,u16 x_end,u16 y_end)
{		
	Lcd_WriteIndex(0x2a);
	Lcd_WriteData(0x00);
	Lcd_WriteData(x_start+2);
	Lcd_WriteData(0x00);
	Lcd_WriteData(x_end+2);

	Lcd_WriteIndex(0x2b);
	Lcd_WriteData(0x00);
	Lcd_WriteData(y_start+3);
	Lcd_WriteData(0x00);
	Lcd_WriteData(y_end+3);
	
	Lcd_WriteIndex(0x2c);

}

/*************************************************
函数名：LCD_Set_XY
功能：设置lcd显示起始点
入口参数：xy坐标
返回值：无
*************************************************/
void Lcd_SetXY(u16 x,u16 y)
{
  	Lcd_SetRegion(x,y,x,y);
}

	
/*************************************************
函数名：LCD_DrawPoint
功能：画一个点
入口参数：无
返回值：无
*************************************************/
void Gui_DrawPoint(u16 x,u16 y,u16 Data)
{
	Lcd_SetRegion(x,y,x+1,y+1);
	LCD_WriteData_16Bit(Data);

}    

/*****************************************
 函数功能：读TFT某一点的颜色                          
 出口参数：color  点颜色值                                 
******************************************/
unsigned int Lcd_ReadPoint(u16 x,u16 y)
{
  unsigned int Data;
  Lcd_SetXY(x,y);

  //Lcd_ReadData();//丢掉无用字节
  //Data=Lcd_ReadData();
  Lcd_WriteData(Data);
  return Data;
}
/*************************************************
函数名：Lcd_Clear
功能：全屏清屏函数
入口参数：填充颜色COLOR
返回值：无
*************************************************/
void Lcd_Clear(u16 Color)               
{	
   unsigned int i,m;
   Lcd_SetRegion(0,0,X_MAX_PIXEL-1,Y_MAX_PIXEL-1);
   Lcd_WriteIndex(0x2C);
   for(i=0;i<X_MAX_PIXEL;i++)
    for(m=0;m<Y_MAX_PIXEL;m++)
    {	
	  	LCD_WriteData_16Bit(Color);
    }   
}

附上其头文件：

#include "type.h"
#define CPU_F ((double)1000000)
#define delay_us(x) __delay_cycles((long)(CPU_F*(double)x/1000000.0))
#define delay_ms(x) __delay_cycles((long)(CPU_F*(double)x/1000.0))

#define RED  	0xf800
#define GREEN	0x07e0
#define BLUE 	0x001f
#define WHITE	0xffff
#define BLACK	0x0000
#define YELLOW  0xFFE0
#define GRAY0   0xEF7D   	    //灰色0 3165 00110 001011 00101
#define GRAY1   0x8410      	//灰色1      00000 000000 00000
#define GRAY2   0x4208      	//灰色2  1111111111011111


#define LCD_SDA      P6DIR |= BIT0
#define LCD_RS       P6DIR |= BIT1
#define LCD_CS       P6DIR |= BIT2
#define LCD_RST      P6DIR |= BIT3
#define LCD_SCL      P6DIR |= BIT4
#define LCD_LED      P6DIR |= BIT5


//液晶控制口置1操作语句宏定义
#define	LCD_CS_SET  	 P6OUT |= BIT2
#define	LCD_RS_SET  	 P6OUT |= BIT1
#define	LCD_SDA_SET  	 P6OUT |= BIT0
#define	LCD_SCL_SET  	 P6OUT |= BIT4
#define	LCD_RST_SET  	 P6OUT |= BIT3
#define	LCD_LED_SET  	 P6OUT |= BIT5

//液晶控制口置0操作语句宏定义
#define	LCD_CS_CLR  	 P6OUT &=~ BIT2
#define	LCD_RS_CLR  	 P6OUT &=~ BIT1
#define	LCD_SDA_CLR  	 P6OUT &=~ BIT0
#define	LCD_SCL_CLR  	 P6OUT &=~ BIT4
#define	LCD_RST_CLR  	 P6OUT &=~ BIT3
#define	LCD_LED_CLR  	 P6OUT &=~ BIT5



void LCD_GPIO_Init(void);
void Lcd_WriteIndex(u8 Index);
void Lcd_WriteData(u8 Data);
void Lcd_WriteReg(u8 Index,u8 Data);
u16 Lcd_ReadReg(u8 LCD_Reg);
void Lcd_Reset(void);
void Lcd_Init(void);
void Lcd_Clear(u16 Color);
void Lcd_SetXY(u16 x,u16 y);
void Gui_DrawPoint(u16 x,u16 y,u16 Data);
unsigned int Lcd_ReadPoint(u16 x,u16 y);
void Lcd_SetRegion(u16 x_start,u16 y_start,u16 x_end,u16 y_end);
void LCD_WriteData_16Bit(u16 Data);

具体接线在上面头文件已经声明了，这个代码大家简单修改就可以直接上手了

代码确实会比较多，因此我就不再一一列举

这个代码也是在STM32基础上改造出来的，32的代码有时间再写一份，其实原理都是差不多的。

?大家也可以根据自己实际情况再加以修改。