LM3S811使用心得之12864串行显示

只看该作者 · 2011-11-17 21:43

本帖最后由 nwx8899 于 2011-11-18 11:58 编辑

11.12接到21IC的EK-LM3S811 EVALUATION BOARD，非常开心，。非常感谢TI,感谢21IC,感谢这次活动的举办者。本人目前大三，在次之前只用51单片机做过东西，对于ARM来说，我是初学者，对于LM3S811来说那就更陌生了。当我打开光盘的时候我有点不知所措，但出于对ARM兴趣，对LM3S811的好奇，自己还是硬着头皮看下去，慢慢来吧！自己的硬件及编程基础薄弱，所以对于TI M3 – Stellaris的学习只能慢慢来，一步一个脚印吧，希望大家见谅，同时对于自己的错误部分，希望大家能够指正、交流学习！

第一步：从第一个例子开始吧！
首先安装驱动，安装光盘里的下载软件，顺承51的KEIL以及光盘中的LM Flash Programmer。然后找到MDK安装文件下（D:\Keil\ARM\Boards\Luminary\ek-lm3s811\blinky）自带的测试程序，把其中的2000改成20000后LED的闪烁变慢了。这一刻证明EK_LM3S811 BOARD 与我的电脑连起来了，第一步已经成功了。
第二步：找关于LM3S系列的资料，下载LM3S的中文资料，以及API函数的用法。论坛里有很多有用的资料，但个人觉得在电脑上看时间长了就不行了，还是推荐一本从图书馆借的书吧。

第三步：自己的第一个简单程序（关于12864液晶的串行显示）。
//包含头文件
#include "hw_ints.h"
#include "hw_memmap.h"
#include "hw_types.h"
#include "gpio.h"
#include "sysctl.h"
#include "cpu.h"
#include "interrupt.h"
#include "hw_timer.h"
#include "debug.h"
#ifndef uchar
#define uint unsigned int
#define uchar unsigned char
#endif

//定义接口

#define CS GPIO_PIN_3 //PD0 PWMO PD1 PWM1

#define SID GPIO_PIN_2

#define SCLK GPIO_PIN_4

uchar image[]={

0x02,0x08,0x00,0x08,0x00,0x00,0x04,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0xD0,0x06,0x04,0x08,0x03,0x02,0x00,0x38,0x80,0x00,0x00,0x00,0x00,0x00,0x00,

0x41,0x00,0x09,0x43,0x00,0x04,0xA1,0x80,0x41,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,

0x42,0x00,0x29,0x00,0x00,0x14,0x80,0x00,0x8E,0x00,0xE7,0x00,0x00,0x00,0x00,0x00,

0x32,0x88,0x29,0x30,0x04,0x14,0x98,0x00,0x70,0x00,0x1C,0x80,0x00,0x00,0x00,0x00,

0x0C,0x00,0x16,0x48,0x00,0x0B,0x24,0x00,0x20,0x00,0x08,0x60,0x00,0x00,0x00,0x00,

0x00,0x20,0x4D,0x80,0x00,0x26,0xC0,0x00,0x40,0x00,0x08,0x10,0x00,0x00,0x00,0x00,

0x40,0x20,0x00,0x10,0x00,0x00,0x08,0x00,0x4C,0x00,0x08,0x10,0x00,0x00,0x00,0x00,

0x04,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x90,0x00,0x08,0x20,0x00,0x00,0x00,0x00,

0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x08,0x09,0xC0,0x00,0x00,0x00,0x00,

0x18,0x10,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x04,0x00,0x40,0x00,0x00,0x00,0x00,

0x25,0x3F,0xC3,0xFE,0x3F,0xE0,0x00,0x01,0x10,0x04,0x00,0x40,0x00,0x00,0x00,0x00,

0xA4,0x08,0x40,0x20,0x00,0x41,0x80,0x01,0x10,0x00,0x00,0x20,0x00,0x00,0x00,0x00,

0xA4,0xC8,0x47,0xFF,0x00,0x83,0xC0,0x01,0x00,0x40,0x00,0x20,0x00,0x00,0x00,0x00,

0x59,0x28,0x40,0x20,0x03,0x03,0xC0,0x02,0x00,0x40,0x00,0x20,0x00,0x00,0x00,0x00,

0x36,0x08,0x81,0xFC,0x02,0x03,0xC0,0x02,0xF0,0x40,0x10,0x20,0x00,0x00,0x00,0x00,

0x00,0x44,0x81,0x24,0x02,0x01,0x80,0x05,0x0C,0x04,0x10,0x20,0x00,0x00,0x00,0x00,

0x00,0x05,0x01,0xFC,0x02,0x01,0x80,0x05,0x42,0x00,0x14,0x40,0x00,0x00,0x00,0x00,

0x00,0x02,0x01,0x24,0x02,0x00,0x00,0x05,0x51,0x00,0x1C,0x40,0x00,0x00,0x00,0x00,

0x00,0x05,0x03,0xFE,0x02,0x01,0x80,0x04,0x91,0x03,0xC0,0x40,0x00,0x00,0x00,0x00,

0x00,0x18,0xC0,0x20,0x02,0x01,0x80,0x04,0x61,0x00,0x00,0x40,0x00,0x00,0x00,0x00,

0x02,0x60,0x37,0xFF,0x0E,0x00,0x00,0x04,0x1E,0x00,0x00,0x80,0x00,0x00,0x00,0x00,

0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,

0x40,0x7F,0xF4,0x0A,0x3B,0xF3,0xFE,0x01,0x01,0xF0,0x01,0x00,0x00,0x00,0x00,0x00,

0x38,0x05,0x02,0x0A,0x2A,0x90,0x04,0x00,0xC7,0xF8,0x02,0x00,0x00,0x00,0x00,0x00,

0x04,0x3F,0xE2,0xFF,0x2A,0x90,0x08,0x00,0x70,0xF8,0x04,0x00,0x00,0x00,0x00,0x00,

0x20,0x25,0x20,0x88,0x3A,0x90,0x30,0x00,0xC7,0x00,0x08,0x00,0x00,0x00,0x00,0x00,

0x00,0x3F,0xE2,0xF9,0x2B,0xF0,0x20,0x01,0x00,0x00,0xFE,0x00,0x00,0x00,0x00,0x00,

0x00,0x04,0x02,0x89,0x2A,0x00,0x20,0x02,0x20,0x00,0x01,0x00,0x00,0x00,0x00,0x00,

0x41,0x7F,0xF4,0xFA,0x3A,0x00,0x20,0x04,0x48,0x00,0x00,0x80,0x00,0x00,0x00,0x00,

0x18,0x08,0x84,0xD4,0x2A,0x00,0x20,0x08,0x80,0x08,0x00,0x80,0x00,0x00,0x00,0x00,

0x20,0x1D,0x05,0x75,0x2A,0x10,0x20,0x09,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,

0x40,0x03,0x85,0x4B,0x4A,0x10,0x20,0x12,0x30,0x00,0x80,0x40,0x00,0x00,0x00,0x00,

0x50,0x7C,0x62,0x11,0x5B,0xF0,0xE0,0x13,0x8F,0xC0,0x80,0x20,0x00,0x00,0x00,0x00,

0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x14,0x78,0x3F,0x00,0x20,0x00,0x00,0x00,0x00,

0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x03,0xC0,0x80,0x20,0x00,0x00,0x00,0x00,

0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x28,0x00,0x0F,0x80,0x20,0x00,0x00,0x00,0x00,

0x84,0x80,0x00,0x1C,0x08,0x0E,0x04,0x28,0x00,0x00,0x40,0x20,0x00,0x00,0x00,0x00,

0x04,0x1C,0x08,0x22,0x00,0x11,0x00,0x18,0x00,0x00,0x20,0x20,0x00,0x00,0x00,0x00,

0x02,0x22,0x00,0x21,0x00,0x10,0x80,0x08,0x00,0x00,0x20,0x20,0x00,0x00,0x00,0x00,

0xA1,0xA1,0x00,0x24,0xE0,0x12,0x70,0x10,0x00,0x00,0x30,0x20,0x00,0x00,0x00,0x00,

0x80,0x24,0xE0,0x18,0x10,0x0C,0x08,0x10,0x00,0x00,0x28,0x20,0x00,0x00,0x00,0x00,

0x98,0x18,0x10,0x00,0x80,0x80,0x40,0x10,0x08,0x00,0x25,0xE0,0x00,0x00,0x00,0x00,

0x24,0x00,0x81,0x00,0x00,0x80,0x00,0x1A,0x08,0x00,0x22,0x20,0x00,0x00,0x00,0x00,

0xC1,0x00,0x00,0x00,0x00,0x00,0x00,0x1D,0x46,0x00,0x22,0xA0,0x00,0x00,0x00,0x00,

0x08,0x00,0x00,0x01,0x04,0x00,0x82,0x0F,0x93,0x40,0x21,0x40,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00

}；

void delay(uint t)

{

uint i,j;

for(i=0; i<t; i++)

for(j=0; j<10; j++);

}

//发送一个字节

/********************************************************************

* 名称 : sendbyte()

* 功能 : 按照液晶的串口通信协议，发送数据

* 输入 : zdata

* 输出 : 无

***********************************************************************/

void sendbyte(uchar zdata)

{

uint i;

for(i=0;i<8;i++)

{

if((zdata<<=i)&0x80)

{

GPIOPinWrite(GPIO_PORTD_BASE,SID,SID);

}

else

{

GPIOPinWrite(GPIO_PORTD_BASE,SID,~SID);

}

delay(1);

GPIOPinWrite(GPIO_PORTD_BASE,SCLK,SCLK);

GPIOPinWrite(GPIO_PORTD_BASE,SCLK,~SCLK);

delay(1);

}

//写数据或命令

void write(uchar dat,uchar cmd)

{
uchar temp,com;

GPIOPinWrite(GPIO_PORTD_BASE,CS,CS)
;

delay(2);

if(cmd==0)

com=0xF8;

else

com=0xFA;

sendbyte(com);

temp=dat&0xf0;

sendbyte(temp);

temp=((dat&0XF0)<<4)&0xf0;

sendbyte(temp);

delay(20);

GPIOPinWrite(GPIO_PORTD_BASE,CS,~CS) ;

}

//设置坐标

void setxy(uchar x,uchar y)

{

switch(y)

{

case 0:write(0x80+x,0);break;

case 1:write(0x88+x,0);break;

case 2:write(0x90+x,0);break;

case 3:write(0x98+x,0);break;

default: break;

}

//写字串

void writestr(uchar x,uchar y,uchar *str)

{

uchar lcdtemp;

setxy(x,y);

lcdtemp=*str;

while(lcdtemp!= 0)

{

write(lcdtemp,1);

lcdtemp=*(++str);

}

//画图

void photodisplay(uchar *bmp)

{

uchar i,j;

write(0x34,0); //写数据时,关闭图形显示

for(i=0;i<32;i++)

{

write(0x80+i,0); //先写入水平坐标值

write(0x80,0); //写入垂直坐标值

for(j=0;j<16;j++) //再写入两个8位元的数据

write(*bmp++,1);

delay(1);

}

for(i=0;i<32;i++)

{

write(0x80+i,0);

write(0x88,0);

for(j=0;j<16;j++)

write(*bmp++,1);

delay(1);

}

write(0x36,0); //写完数据,开图形显示

}

//初始化液晶

/********************************************************************

* 名称 : lcdinit()

* 功能 : 初始化函数

* 输入 : cmdcode

* 输出 : 无

***********************************************************************/

void lcdinit()

{

GPIOPinWrite(GPIO_PORTD_BASE,CS,CS)
;

delay(100);

write(0x30,0);

delay(50);

write(0x0c,0);

delay(50);

write(0x06,0);

delay(50);

write(0x01,0);

delay(50);

}

//主函数

int main()

{
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN

|
SYSCTL_XTAL_6MHZ);

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);

GPIODirModeSet(GPIO_PORTD_BASE,CS|SID|SCLK,GPIO_DIR_MODE_OUT);

delay(100);

lcdinit();

delay(100);

photodisplay(image) ;//显示图片

writestr(0,3,"感谢21 IC ! !");

while(1);

}

最后的效果：

小结：以上就是本人对LM3S811入门的一些心得，望大家指点。谢谢。对于进一步的琢磨，只能随着时间慢慢来了。再次感谢二姨给我这次学习的机会。谢谢！！！

只看该作者 · 2011-11-17 22:01

图片没有显示，又无法再编辑了，所以又发了个帖子把图补上了。。。

只看该作者 · 2011-11-17 22:05

https://bbs.21ic.com/frame.php?fr ... c.com/icnewest.html

只看该作者 · 2011-11-17 22:34

看到后面的显示效果了，不错，顶起

只看该作者 · 2011-11-18 07:33

不错帮顶

只看该作者 · 2011-11-18 11:43

嘿嘿学习学习

只看该作者 · 2011-11-18 11:52

图片终于传上去了:lol

只看该作者 · 2011-11-18 17:25

显示效果不错，呵呵

只看该作者 · 2011-11-18 18:08

做的不错，很帅啊，值得参考

2万 · 2011-11-19 14:40

继续努力！冲刺一百美金哦！:lol

只看该作者 · 2011-11-19 21:03

没硬件图纸，光软件能冲刺$100吗？

只看该作者 · 2011-11-20 18:37

呵呵，还行啊

2万 · 2011-11-23 08:17

帮顶~

这个Demo板我也收到了，还没空玩，惭愧ing...

只看该作者 · 2011-11-23 10:21

:victory::victory:

只看该作者 · 2011-11-23 13:20

羡慕

1万 · 2011-11-23 21:24

好长好长。。。

1万 · 2011-11-24 16:07

呵呵。看看

只看该作者 · 2011-11-25 12:26

楼主厉害啊我们一定好好学习

只看该作者 · 2011-11-25 20:46

heheh

只看该作者 · 2011-11-25 21:07

本帖最后由永远的不知于 2011-12-31 22:14 编辑

初学者，还行

LM3S811使用心得 之12864串行显示

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LM3S811使用心得之12864串行显示