基于ARM单片机的128x64LCM应用（并行接口）
ARM单片机的功能要大大优于51单片机，而其价格已经很低了，生产厂家不论是出于广告宣传的需要，还是出于利润的角度考虑（嵌入ARM单片机将会卖更高的价格），他们更希望在自己的产品中嵌入ARM单片机。
本人使用的是周立功公司推出的Easy ARM1138开发板，它除了具有32位ARM Cortex-M3内核的LM3S1138单片机之外，还内嵌有USB接口的仿真调试器，开发调试非常方便，不愧为广大师生和工程师的首选。如下图所示。
⒈ 硬件设计
128x64LCD模块简称128x64LCM，它有的内含汉字库，有的无汉字库，有的有背光，有的无背光，本人使用的是有背光含汉字库的128x64LCM。有关该模块在本人的博文“基于51单片机的内含汉字库的LCM（一）”中进行了详述。
采用Easy ARM1138开发板与128x64LCM的硬件设计很简单，它们之间只需用13根杜邦线连接即可，如下图所示。
由上图可以看出，本设计与“基于51单片机的内含汉字库的LCM（一）”中的设计很相似，只是将51单片机换成了ARM开发板。
⒉ 软件设计
本设计的要求与“基于51单片机的内含汉字库的LCM（一）”相同，循环显示一首唐诗和一副电脑桌面的图形；因此其流程图也与它基本相同，如下所示。
由于上述流程图与使用51单片机的流程图差不多，因此他们的程序也比较相近，如下所示。你可以把它们比较一下，这样你就可以很快进入ARM世界了。
// 基于《Stellaris外设驱动库》的例程
/*****************************************
**LCD128*64实验程序 ,一首唐诗和电脑桌面
**A口--数据,F0--RS,F1--RW,F2--E
******************************************/
// 包含必要的头文件
#include <hw_types.h>
#include <hw_memmap.h>
#include <hw_sysctl.h>
#include <hw_gpio.h>
#include <sysctl.h>
#include <gpio.h>
// 将较长的标识符定义成较短的形式
#define SysCtlPeriEnable SysCtlPeripheralEnable
#define SysCtlPeriDisable SysCtlPeripheralDisable
#define GPIOPinTypeIn GPIOPinTypeGPIOInput
#define GPIOPinTypeOut GPIOPinTypeGPIOOutput
#define uint unsigned int
#define uchar unsigned char
// 定义全局的系统时钟变量
unsigned long TheSysClock = 12000000UL;
// 延时
void Delay(unsigned long ulVal)
{
while ( --ulVal != 0 );
}
//LCD复位
void reset(void)
{
int i;
for(i=0;i<3;i++)
{
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x00) ; //RS0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x00) ; //RW0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x01<<2) ; //E1
GPIOPinWrite(GPIO_PORTA_BASE,0xFF,0x30) ; //送30H
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x00) ; //E0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x01) ; //RS1
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x01<<1) ; //RW1
}
}
//LCD命令写
void comm(uchar a)
{
Delay(2 * (TheSysClock / 4000)); //2ms
//GPIOPinTypeOut(GPIO_PORTA_BASE ,0xFF); //GPIOA为输出
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x00) ; //RS0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x00) ; //RW0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x01<<2) ; //E1
GPIOPinWrite(GPIO_PORTA_BASE,0xFF,a); //GPIOA口出a
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x00) ; //E0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x01) ; //RS1
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x02) ; //RW1
}
//LCD数据写
void dataa(uchar a)
{
Delay(2* (TheSysClock / 4000)); //2ms
//GPIOPinTypeOut(GPIO_PORTA_BASE ,0xFF); //GPIOA为输出
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x01) ; //RS1
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x00) ; //RW0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x04) ; //E1
GPIOPinWrite(GPIO_PORTA_BASE,0xFF,a); //GPIOA口出a
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x00) ; //E0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x00) ; //RS0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x02) ; //RW1
}
// 系统初始化
void SystemInit(void)
{
SysCtlLDOSet(SYSCTL_LDO_2_50V); // 设置LDO输出电压
SysCtlClockSet(SYSCTL_USE_OSC | // 系统时钟设置，采用主振荡器
SYSCTL_OSC_MAIN |
SYSCTL_XTAL_6MHZ |
SYSCTL_SYSDIV_1);
TheSysClock = SysCtlClockGet(); // 获取系统时钟，单位：Hz
}
uint tab1[]=
{ //朝辞白帝彩云间，
0xb3,0xaf,0xb4,0xc7,0xb0,0xd7,0xb5,0xdb,
0xb2,0xca,0xd4,0xc6,0xbc,0xe4,0xa3,0xac
};
uint tab2[]=
{ //千里江陵一日还，
0xc7,0xa7,0xc0,0xef,0xbd,0xad,0xc1,0xea,
0xd2,0xbb,0xc8,0xd5,0xbb,0xb9,0xa3,0xac
};
uint tab3[]=
{ //两岸猿声啼不住，
0xc1,0xbd,0xb0,0xb6,0xd4,0xb3,0xc9,0xf9,
0xcc,0xe4,0xb2,0xbb,0xd7,0xa1,0xa3,0xac
};
uint tab4[]=
{ //轻舟已过万重山。
0xc7,0xe1,0xd6,0xdb,0xd2,0xd1,0xb9,0xfd,
0xcd,0xf2,0xd6,0xd8,0xc9,0xbd,0xa1,0xa3
};
/********电脑桌面数据********************/
uchar dnzm[]=
{
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0xF0,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x18,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xBF,0xFF,0xDC,0x00,0x01,
0x80,0x00,0x1F,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0xBF,0xFF,0xBC,0x00,0x01,
0x80,0x00,0x30,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x7F,0xFF,0xB8,0x00,0x01,
0x80,0x00,0x30,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x01,0x7F,0xFF,0x78,0x00,0x01,
0x80,0x00,0x19,0xFF,0xFE,0xC0,0x00,0x00,0x00,0x00,0x02,0xFF,0xFF,0x70,0x00,0x01,
0x80,0x00,0x18,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x02,0xFF,0xFE,0xF0,0x00,0x01,
0x80,0x00,0x0C,0x01,0xFF,0x60,0x00,0x00,0x00,0x00,0x05,0xFF,0xFE,0xE0,0x00,0x01,
0x80,0x00,0x0C,0x7F,0xD0,0x20,0x00,0x00,0x00,0x00,0x05,0xFF,0xFD,0xE0,0x00,0x01,
0x80,0x00,0x06,0x00,0x0F,0xB0,0x00,0x00,0x00,0x00,0x0B,0xFF,0xFD,0xC0,0x00,0x01,
0x80,0x00,0x06,0x03,0xFC,0x10,0x00,0x00,0x00,0x00,0x0B,0xFF,0xFB,0xC0,0x00,0x01,
0x80,0x00,0x03,0x1F,0x00,0x18,0x00,0x00,0x00,0x00,0x17,0xFF,0xFB,0x80,0x00,0x01,
0x80,0x00,0x03,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x17,0xFF,0xF7,0x80,0x00,0x01,
0x80,0x00,0x01,0x80,0x00,0x0C,0x00,0x00,0x00,0x00,0x17,0xFF,0xF7,0x00,0x00,0x01,
0x80,0x00,0x01,0x80,0x00,0x04,0x00,0x00,0x00,0x00,0x09,0xFF,0xEF,0x00,0x00,0x01,
0x80,0x00,0x00,0xC0,0x00,0xF6,0x00,0x00,0x00,0x00,0x06,0x7F,0xEF,0x00,0x00,0x01,
0x80,0x00,0x00,0xC0,0x03,0xC2,0x00,0x00,0x00,0x00,0x01,0x9F,0xDE,0x00,0x00,0x01,
0x80,0x00,0x00,0x60,0x00,0x3B,0x00,0x00,0x00,0x00,0x00,0x67,0xDF,0x00,0x00,0x01,
0x80,0x00,0x00,0x60,0x00,0xE3,0x00,0x00,0x00,0x00,0x00,0x19,0xBF,0x00,0x00,0x01,
0x80,0x00,0x00,0x30,0x03,0x8E,0x00,0x00,0x00,0x00,0x00,0x06,0x3F,0x00,0x00,0x01,
0x80,0x00,0x00,0x30,0x06,0x3C,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,0xC0,0x00,0x01,
0x80,0x00,0x00,0x18,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0xEF,0x00,0x00,0x01,
0x80,0x00,0x00,0x18,0x03,0xC0,0x00,0x00,0x00,0x00,0x00,0x0F,0x1F,0x80,0x00,0x01,
0x80,0x00,0x00,0x0C,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x1F,0xC0,0x00,0x01,
0x80,0x00,0x00,0x0C,0x3C,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x07,0xE0,0x00,0x01,
0x80,0x00,0x00,0x06,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x1F,0xE0,0x00,0x01,
0x80,0x00,0x00,0x07,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0x3F,0xC0,0x00,0x01,
0x80,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0xFF,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFC,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x05,0x40,0x88,0x04,0x01,0x08,0x00,0x00,0x0A,0x81,0x10,0x04,0x00,0x20,0x01,
0x80,0x79,0x21,0x08,0x02,0x21,0x49,0x00,0x00,0xF2,0x42,0x10,0x04,0x47,0x10,0x01,
0x80,0x09,0x07,0xDF,0x7F,0xF7,0xAA,0x00,0x00,0x12,0x0F,0xBE,0x7F,0xE5,0xFE,0x01,
0x80,0x7F,0xF4,0x51,0x08,0x81,0x2C,0x00,0x00,0xFF,0xE8,0xA2,0x44,0x47,0x00,0x01,
0x80,0x09,0x04,0x61,0x08,0x81,0x7F,0x00,0x00,0x12,0x08,0xC2,0x7F,0xC5,0x4A,0x01,
0x80,0x0B,0x24,0x51,0x08,0x83,0x81,0x00,0x00,0x16,0x48,0xA2,0x44,0x45,0x6A,0x01,
0x80,0x1D,0x47,0xC9,0x05,0x05,0x01,0x00,0x00,0x3A,0x8F,0x92,0x44,0x47,0x52,0x01,
0x80,0x68,0x84,0x49,0x05,0x05,0x7F,0x00,0x00,0xD1,0x08,0x92,0x7F,0xC5,0x6A,0x01,
0x80,0x09,0x94,0x41,0x02,0x01,0x01,0x00,0x00,0x13,0x28,0x82,0x44,0x05,0x4A,0x01,
0x80,0x0E,0x57,0xC1,0x0D,0x81,0x01,0x00,0x00,0x1C,0xAF,0x82,0x04,0x29,0x42,0x01,
0x80,0x38,0x34,0x4E,0x70,0x71,0x7F,0x00,0x00,0x70,0x68,0x9C,0x03,0xEB,0x7E,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
};
/*********显示图形子函数**********/
void display_photo()
{
uchar i,j,k=0x80;
comm(0x3c); //功能设置--8BIT控制，绘图OFF
for(i=0;i<32;i++)
{
comm(k); //设置绘图区的Y地址坐标
k=k+1;
comm(0x80); //设置绘图区的X地址坐标
for(j=0;j<16;j++)
{
dataa(dnzm[i*16+j]);
}
}
k=0x80;
for(i=0;i<32;i++)
{
comm(k); //设置绘图区的Y地址坐标
k=k+1;
comm(0x88); //设置绘图区的X地址坐标
for(j=0;j<16;j++)
{
dataa(dnzm[512+i*16+j]);
}
}
comm(0x38); //8位
comm(0x01); //清屏
comm(0x3e); //功能设置--8BIT控制，绘图ON(显示图形）
}
// 主函数（程序入口）
int main(void)
{
SystemInit(); // 系统初始化
SysCtlPeriEnable(SYSCTL_PERIPH_GPIOA); //使能GPIOA口外设
GPIOPinTypeOut(GPIO_PORTA_BASE ,0xFF); //GPIOA为输出
SysCtlPeriEnable(SYSCTL_PERIPH_GPIOF); //使能GPIOF口外设
GPIOPinTypeOut(GPIO_PORTF_BASE ,0xFF); //GPIOF为输出
while(1)
{
reset(); //LCD复位
comm(0x01); //清除显示
comm(0x38); //功能设置,8位四行
comm(0x0c); //显示开关设置,开显示
comm(0x80); //DDRAM第一行的首地址
int i;
for(i=0;i<16;i++)
{
dataa(tab1);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
comm(0x90); //DDRAM第二行的首地址
for(i=0;i<16;i++)
{
dataa(tab2);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
comm(0x88); //DDRAM三行的首地址
for(i=0;i<16;i++)
{
dataa(tab3);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
comm(0x98); //DDRAM第四行的首地址
for(i=0;i<16;i++)
{
dataa(tab4);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
Delay(1000 * (TheSysClock / 4000)); // 延时约1s
display_photo();
Delay(3000 * (TheSysClock / 4000)); // 延时约3s
}
}
本人使用的是IAR EWARM（IAR Embedded Workbench for ARM）集成开发环境，利用周立功公司提供的工程模板，输入以上的源程序，点击菜单“Project”→“Mark”进行编译，或按F7键，根据提示修改错误，再进行编译直至无错误为止 。
基于ARM单片机的128x64LCM应用（并行接口）
ARM单片机的功能要大大优于51单片机，而其价格已经很低了，生产厂家不论是出于广告宣传的需要，还是出于利润的角度考虑（嵌入ARM单片机将会卖更高的价格），他们更希望在自己的产品中嵌入ARM单片机。
本人使用的是周立功公司推出的Easy ARM1138开发板，它除了具有32位ARM Cortex-M3内核的LM3S1138单片机之外，还内嵌有USB接口的仿真调试器，开发调试非常方便，不愧为广大师生和工程师的首选。如下图所示。
⒈ 硬件设计
128x64LCD模块简称128x64LCM，它有的内含汉字库，有的无汉字库，有的有背光，有的无背光，本人使用的是有背光含汉字库的128x64LCM。有关该模块在本人的博文“基于51单片机的内含汉字库的LCM（一）”中进行了详述。
采用Easy ARM1138开发板与128x64LCM的硬件设计很简单，它们之间只需用13根杜邦线连接即可，如下图所示。
由上图可以看出，本设计与“基于51单片机的内含汉字库的LCM（一）”中的设计很相似，只是将51单片机换成了ARM开发板。
⒉ 软件设计
本设计的要求与“基于51单片机的内含汉字库的LCM（一）”相同，循环显示一首唐诗和一副电脑桌面的图形；因此其流程图也与它基本相同，如下所示。
由于上述流程图与使用51单片机的流程图差不多，因此他们的程序也比较相近，如下所示。你可以把它们比较一下，这样你就可以很快进入ARM世界了。
// 基于《Stellaris外设驱动库》的例程
/*****************************************
**LCD128*64实验程序 ,一首唐诗和电脑桌面
**A口--数据,F0--RS,F1--RW,F2--E
******************************************/
// 包含必要的头文件
#include <hw_types.h>
#include <hw_memmap.h>
#include <hw_sysctl.h>
#include <hw_gpio.h>
#include <sysctl.h>
#include <gpio.h>
// 将较长的标识符定义成较短的形式
#define SysCtlPeriEnable SysCtlPeripheralEnable
#define SysCtlPeriDisable SysCtlPeripheralDisable
#define GPIOPinTypeIn GPIOPinTypeGPIOInput
#define GPIOPinTypeOut GPIOPinTypeGPIOOutput
#define uint unsigned int
#define uchar unsigned char
// 定义全局的系统时钟变量
unsigned long TheSysClock = 12000000UL;
// 延时
void Delay(unsigned long ulVal)
{
while ( --ulVal != 0 );
}
//LCD复位
void reset(void)
{
int i;
for(i=0;i<3;i++)
{
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x00) ; //RS0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x00) ; //RW0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x01<<2) ; //E1
GPIOPinWrite(GPIO_PORTA_BASE,0xFF,0x30) ; //送30H
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x00) ; //E0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x01) ; //RS1
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x01<<1) ; //RW1
}
}
//LCD命令写
void comm(uchar a)
{
Delay(2 * (TheSysClock / 4000)); //2ms
//GPIOPinTypeOut(GPIO_PORTA_BASE ,0xFF); //GPIOA为输出
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x00) ; //RS0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x00) ; //RW0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x01<<2) ; //E1
GPIOPinWrite(GPIO_PORTA_BASE,0xFF,a); //GPIOA口出a
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x00) ; //E0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x01) ; //RS1
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x02) ; //RW1
}
//LCD数据写
void dataa(uchar a)
{
Delay(2* (TheSysClock / 4000)); //2ms
//GPIOPinTypeOut(GPIO_PORTA_BASE ,0xFF); //GPIOA为输出
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x01) ; //RS1
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x00) ; //RW0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x04) ; //E1
GPIOPinWrite(GPIO_PORTA_BASE,0xFF,a); //GPIOA口出a
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_2,0x00) ; //E0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_0,0x00) ; //RS0
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1,0x02) ; //RW1
}
// 系统初始化
void SystemInit(void)
{
SysCtlLDOSet(SYSCTL_LDO_2_50V); // 设置LDO输出电压
SysCtlClockSet(SYSCTL_USE_OSC | // 系统时钟设置，采用主振荡器
SYSCTL_OSC_MAIN |
SYSCTL_XTAL_6MHZ |
SYSCTL_SYSDIV_1);
TheSysClock = SysCtlClockGet(); // 获取系统时钟，单位：Hz
}
uint tab1[]=
{ //朝辞白帝彩云间，
0xb3,0xaf,0xb4,0xc7,0xb0,0xd7,0xb5,0xdb,
0xb2,0xca,0xd4,0xc6,0xbc,0xe4,0xa3,0xac
};
uint tab2[]=
{ //千里江陵一日还，
0xc7,0xa7,0xc0,0xef,0xbd,0xad,0xc1,0xea,
0xd2,0xbb,0xc8,0xd5,0xbb,0xb9,0xa3,0xac
};
uint tab3[]=
{ //两岸猿声啼不住，
0xc1,0xbd,0xb0,0xb6,0xd4,0xb3,0xc9,0xf9,
0xcc,0xe4,0xb2,0xbb,0xd7,0xa1,0xa3,0xac
};
uint tab4[]=
{ //轻舟已过万重山。
0xc7,0xe1,0xd6,0xdb,0xd2,0xd1,0xb9,0xfd,
0xcd,0xf2,0xd6,0xd8,0xc9,0xbd,0xa1,0xa3
};
/********电脑桌面数据********************/
uchar dnzm[]=
{
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0xF0,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x18,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xBF,0xFF,0xDC,0x00,0x01,
0x80,0x00,0x1F,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0xBF,0xFF,0xBC,0x00,0x01,
0x80,0x00,0x30,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x7F,0xFF,0xB8,0x00,0x01,
0x80,0x00,0x30,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x01,0x7F,0xFF,0x78,0x00,0x01,
0x80,0x00,0x19,0xFF,0xFE,0xC0,0x00,0x00,0x00,0x00,0x02,0xFF,0xFF,0x70,0x00,0x01,
0x80,0x00,0x18,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x02,0xFF,0xFE,0xF0,0x00,0x01,
0x80,0x00,0x0C,0x01,0xFF,0x60,0x00,0x00,0x00,0x00,0x05,0xFF,0xFE,0xE0,0x00,0x01,
0x80,0x00,0x0C,0x7F,0xD0,0x20,0x00,0x00,0x00,0x00,0x05,0xFF,0xFD,0xE0,0x00,0x01,
0x80,0x00,0x06,0x00,0x0F,0xB0,0x00,0x00,0x00,0x00,0x0B,0xFF,0xFD,0xC0,0x00,0x01,
0x80,0x00,0x06,0x03,0xFC,0x10,0x00,0x00,0x00,0x00,0x0B,0xFF,0xFB,0xC0,0x00,0x01,
0x80,0x00,0x03,0x1F,0x00,0x18,0x00,0x00,0x00,0x00,0x17,0xFF,0xFB,0x80,0x00,0x01,
0x80,0x00,0x03,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x17,0xFF,0xF7,0x80,0x00,0x01,
0x80,0x00,0x01,0x80,0x00,0x0C,0x00,0x00,0x00,0x00,0x17,0xFF,0xF7,0x00,0x00,0x01,
0x80,0x00,0x01,0x80,0x00,0x04,0x00,0x00,0x00,0x00,0x09,0xFF,0xEF,0x00,0x00,0x01,
0x80,0x00,0x00,0xC0,0x00,0xF6,0x00,0x00,0x00,0x00,0x06,0x7F,0xEF,0x00,0x00,0x01,
0x80,0x00,0x00,0xC0,0x03,0xC2,0x00,0x00,0x00,0x00,0x01,0x9F,0xDE,0x00,0x00,0x01,
0x80,0x00,0x00,0x60,0x00,0x3B,0x00,0x00,0x00,0x00,0x00,0x67,0xDF,0x00,0x00,0x01,
0x80,0x00,0x00,0x60,0x00,0xE3,0x00,0x00,0x00,0x00,0x00,0x19,0xBF,0x00,0x00,0x01,
0x80,0x00,0x00,0x30,0x03,0x8E,0x00,0x00,0x00,0x00,0x00,0x06,0x3F,0x00,0x00,0x01,
0x80,0x00,0x00,0x30,0x06,0x3C,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,0xC0,0x00,0x01,
0x80,0x00,0x00,0x18,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0xEF,0x00,0x00,0x01,
0x80,0x00,0x00,0x18,0x03,0xC0,0x00,0x00,0x00,0x00,0x00,0x0F,0x1F,0x80,0x00,0x01,
0x80,0x00,0x00,0x0C,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x1F,0xC0,0x00,0x01,
0x80,0x00,0x00,0x0C,0x3C,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x07,0xE0,0x00,0x01,
0x80,0x00,0x00,0x06,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x1F,0xE0,0x00,0x01,
0x80,0x00,0x00,0x07,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0x3F,0xC0,0x00,0x01,
0x80,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0xFF,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFC,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x05,0x40,0x88,0x04,0x01,0x08,0x00,0x00,0x0A,0x81,0x10,0x04,0x00,0x20,0x01,
0x80,0x79,0x21,0x08,0x02,0x21,0x49,0x00,0x00,0xF2,0x42,0x10,0x04,0x47,0x10,0x01,
0x80,0x09,0x07,0xDF,0x7F,0xF7,0xAA,0x00,0x00,0x12,0x0F,0xBE,0x7F,0xE5,0xFE,0x01,
0x80,0x7F,0xF4,0x51,0x08,0x81,0x2C,0x00,0x00,0xFF,0xE8,0xA2,0x44,0x47,0x00,0x01,
0x80,0x09,0x04,0x61,0x08,0x81,0x7F,0x00,0x00,0x12,0x08,0xC2,0x7F,0xC5,0x4A,0x01,
0x80,0x0B,0x24,0x51,0x08,0x83,0x81,0x00,0x00,0x16,0x48,0xA2,0x44,0x45,0x6A,0x01,
0x80,0x1D,0x47,0xC9,0x05,0x05,0x01,0x00,0x00,0x3A,0x8F,0x92,0x44,0x47,0x52,0x01,
0x80,0x68,0x84,0x49,0x05,0x05,0x7F,0x00,0x00,0xD1,0x08,0x92,0x7F,0xC5,0x6A,0x01,
0x80,0x09,0x94,0x41,0x02,0x01,0x01,0x00,0x00,0x13,0x28,0x82,0x44,0x05,0x4A,0x01,
0x80,0x0E,0x57,0xC1,0x0D,0x81,0x01,0x00,0x00,0x1C,0xAF,0x82,0x04,0x29,0x42,0x01,
0x80,0x38,0x34,0x4E,0x70,0x71,0x7F,0x00,0x00,0x70,0x68,0x9C,0x03,0xEB,0x7E,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
};
/*********显示图形子函数**********/
void display_photo()
{
uchar i,j,k=0x80;
comm(0x3c); //功能设置--8BIT控制，绘图OFF
for(i=0;i<32;i++)
{
comm(k); //设置绘图区的Y地址坐标
k=k+1;
comm(0x80); //设置绘图区的X地址坐标
for(j=0;j<16;j++)
{
dataa(dnzm[i*16+j]);
}
}
k=0x80;
for(i=0;i<32;i++)
{
comm(k); //设置绘图区的Y地址坐标
k=k+1;
comm(0x88); //设置绘图区的X地址坐标
for(j=0;j<16;j++)
{
dataa(dnzm[512+i*16+j]);
}
}
comm(0x38); //8位
comm(0x01); //清屏
comm(0x3e); //功能设置--8BIT控制，绘图ON(显示图形）
}
// 主函数（程序入口）
int main(void)
{
SystemInit(); // 系统初始化
SysCtlPeriEnable(SYSCTL_PERIPH_GPIOA); //使能GPIOA口外设
GPIOPinTypeOut(GPIO_PORTA_BASE ,0xFF); //GPIOA为输出
SysCtlPeriEnable(SYSCTL_PERIPH_GPIOF); //使能GPIOF口外设
GPIOPinTypeOut(GPIO_PORTF_BASE ,0xFF); //GPIOF为输出
while(1)
{
reset(); //LCD复位
comm(0x01); //清除显示
comm(0x38); //功能设置,8位四行
comm(0x0c); //显示开关设置,开显示
comm(0x80); //DDRAM第一行的首地址
int i;
for(i=0;i<16;i++)
{
dataa(tab1);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
comm(0x90); //DDRAM第二行的首地址
for(i=0;i<16;i++)
{
dataa(tab2);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
comm(0x88); //DDRAM三行的首地址
for(i=0;i<16;i++)
{
dataa(tab3);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
comm(0x98); //DDRAM第四行的首地址
for(i=0;i<16;i++)
{
dataa(tab4);
Delay(150 * (TheSysClock / 4000)); // 延时约0.15s
}
Delay(1000 * (TheSysClock / 4000)); // 延时约1s
display_photo();
Delay(3000 * (TheSysClock / 4000)); // 延时约3s
}
}
本人使用的是IAR EWARM（IAR Embedded Workbench for ARM）集成开发环境，利用周立功公司提供的工程模板，输入以上的源程序，点击菜单“Project”→“Mark”进行编译，或按F7键，根据提示修改错误，再进行编译直至无错误为止 。
3 软件调试
编译无误后即可点击菜单“Project”→“Dbuge”下载源程序的机器码至开发板(或按Ctrl+D)，同时在桌面上出现了几个调试用的快捷按钮——运行（go）、运行到光标处（Run to Cursor）、步出（Step Out）、步入（Step Into）、步越（Step Over）、停止（Break）、复位（Reset）等。通过选择上述不同的快捷按钮，以及观察变量的值（点击菜单“View”→“Watch”在Expression中输入变量名，即可在Value中看到该变量的值；或将光标悬停在某变量上，即可看到该变量的值），来调试程序，直至一切无误后即可全速运行了（点击快捷按钮go）。实物图片如下所示。
3 软件调试
编译无误后即可点击菜单“Project”→“Dbuge”下载源程序的机器码至开发板(或按Ctrl+D)，同时在桌面上出现了几个调试用的快捷按钮——运行（go）、运行到光标处（Run to Cursor）、步出（Step Out）、步入（Step Into）、步越（Step Over）、停止（Break）、复位（Reset）等。通过选择上述不同的快捷按钮，以及观察变量的值（点击菜单“View”→“Watch”在Expression中输入变量名，即可在Value中看到该变量的值；或将光标悬停在某变量上，即可看到该变量的值），来调试程序，直至一切无误后即可全速运行了（点击快捷按钮go）。实物图片如下所示。
- 上一篇： 基于ARM单片机的软件时钟
- 下一篇： 基于ARM单片机的128x64LCM应用（串行接口）
-
第三代功率半导体器件测试解决方案 直播时间： 03月06日 10:00
/3 
文章评论（0条评论）
登录后参与讨论