【课后练习】LaunchPad课后练习六之LCD12864显示图片

常见泽1

【课后练习】LaunchPad课后练习六之LCD12864显示图片 [复制链接]

 

1. 原理图

 

2.  取模过程

当然你也可以不保存单色位图，把图片导入word,选择黑白，如下：

 

打开制作好的图片：

 

 

取模方式

 

 

3. 实验现象

 

课后练习六之LCD12864显示图片.pdf (769.96 KB, 下载次数: 514)

2012-5-30 11:29 上传

点击文件名下载附件

 

 

 

 

 

常见泽1

1. 
   /***********************************************
   **** LAUNCH PAD 学习之LCD ***
   **** MCU: MSP430 ***
   **** 作者： 常见泽 ***
   **** ***
   **** ***
   **** 2012.05.30.11：16 ***
   **** 实验现象：LCD显示EE LOG ***
   **** ***
   ****P1.0~P1.7 数据口 P2.0 P2.1 P2.2 en rs Psb***
   ***********************************************/
   #include <msp430g2452.h>
   #define uchar unsigned char
   #define uint unsigned int
   
   unsigned char table[]="EE-LaunchPad";
   unsigned char num;
   void delay_1ms(void)
   {
   unsigned int i;
   for (i=0;i<1140;i++);
   }
   
   const unsigned char ucpic[]=
   {
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   }; //图像数据
   
   /*****************************************
   *
   * N ms延时函数
   *
   ****************************************/
   void delay_nms(unsigned int n)
   {
   unsigned int i=0;
   for (i=0;i<n;i++)
   delay_1ms();
   }
   
   
   void write_com(unsigned int com)
   {
   //lcdrs = 0;
   P2OUT&= 0xfd;
   P1OUT = com;
   delay_nms(5);
   //lcden = 1;
   P2OUT|= 0x01;
   delay_nms(5);
   P2OUT&= 0xfe;
   }
   
   void write_dat(unsigned int dat)
   {
   //lcdrs = 1;
   P2OUT |= 0x02;
   P1OUT = dat;
   delay_nms(5);
   //lcden=1;
   P2OUT|= 0x01;
   delay_nms(5);
   // lcden=0;
   P2OUT&= 0xfe;
   
   }
   void disp_12864(uchar addr,const uchar *pt,uchar num)
   {
   uchar i;
   write_com(addr);
   for(i=0;i<(num*2);i++)
   write_dat(*(pt++));
   }
   void init()
   {
   //PSB=1;//并口模式
   P2OUT |= BIT2;
   delay_nms(15);
   //EN=0;
   P2OUT&= 0xfe;
   delay_nms(5);
   write_com(0x30);
   delay_nms(1);
   write_com(0x08);//清屏
   delay_nms(1);
   write_com(0x0c);//开显示，关光标
   delay_nms(1);
   write_com(0x01);
   delay_nms(1);
   write_com(0x06);//第一行显示位置
   delay_nms(1);
   }
   
   void lcd12864_image(const unsigned char *p)
   {
   int x,y;
   write_com(0x34); //扩展指令集动作,绘图显示OFF
   for (y=0;y<32;y++) //送上半屏显示数据
   {
   write_com(0x80|y); //送显示Y坐标0x80-0x9f
   write_com(0x80); //送显示X坐标0x80
   for (x=0;x<16;x++)
   {
   write_dat(*p);
   p++;
   }
   }
   
   for (y=0;y<32;y++) //送下半屏显示数据
   {
   write_com(0x80|y); //送显示Y坐标0x80-0x9f
   write_com(0x88); //送显示X坐标0x88
   for (x=0;x<16;x++)
   {
   write_dat(*p);
   p++;
   }
   }
   write_com(0x36); //扩展指令集动作,绘图显示ON
   }
   
   void main(void)
   {
   WDTCTL = WDTPW + WDTHOLD; // Stop WDT
   P1DIR |= 0xff; // P1.2 output
   P2DIR |= 0xff;
   init();
   
   write_com(0x01); //清除显示(清零DDRAM)
   
   lcd12864_image(ucpic); //送图像显示数据
   delay_nms(5000);
   while(1);
   }
   
   

复制代码

lxttian

很敬业，加油！

常见泽1

多谢支持啊 多谢

yzl624358

很好，顶一下

常见泽1

x谢谢支持 谢谢

tanfeng193

unsigned char table[]=\"EE-LaunchPad\";数组这样定义会报错啊

常见泽1

把斜杠去掉 这个代码输入的格式 有问题 我复制进去的是没有斜杠的
unsigned char table[]="EE-LaunchPad"; 我输入的是这个 但是用代码格式输入会出现那个斜杠

mrm827915

请问  程序中的
void disp_12864(uchar addr,const uchar *pt,uchar num)
{
uchar i;
write_com(addr);
for(i=0;i<(num*2);i++)
write_dat(*(pt++));
}

这个子程序是什么作用啊？

暴风雪282

放这么大的一个数组,IAR编译器会说堆栈溢出怎么办?

常见泽1

我的木有提示 溢出 你用的2231？

暴风雪282

不好意思啊,看不到我的消息回复...我用的是2553啊,还是放不下,说是要压缩.

xiao_pang

好崇拜你啊

RONDO7174

来个串口的啊

zhikuangwu

谢过。。

qq973453867

厉害，板凳板凳

MrKingMCU

其实可以使用网页版ps，调整一下阈值，可以获得更好的取模效果