水果電池驅(qū)動(dòng)LaunchPad(MSP430 G2553)+Nokia5110

西紅柿1個(gè)，切成4瓣，鐵釘（鍍鋅）4個(gè)，銅芯導(dǎo)線5段

導(dǎo)線起兩個(gè)作用：連線和陽(yáng)極，四瓣西紅柿要相互隔開(kāi)，不能直接接觸，由于每瓣西紅柿只能提供0.8～0.9V左右的電壓，所以要串聯(lián)。由于MSP430功耗很低，只要單片機(jī)工作在低頻模式（關(guān)閉DCO），就能工作了，點(diǎn)亮Nokia5110沒(méi)有問(wèn)題，時(shí)間稍長(zhǎng)可能因?yàn)楣╇婋娏飨陆祵?dǎo)致不能正常顯示。如果采用休眠+喚醒方式，電池壽命將大大延長(zhǎng)。

參考程序如下：

/*

修改者：http://jiwm.blog.13.com

main.c
Nokia5110 在msp430單片機(jī)上的應(yīng)用程序，利用SPI協(xié)議
本程序在IAR上編譯，LaunchPad開(kāi)發(fā)板測(cè)試成功
端口定義，此部分需要在nokia_5110.h加以修改
#define LCD_5110_DIR P2DIR
#define LCD_5110_OUTP2OUT
#define LCD_RST 4 復(fù)位 P2.4
#define LCD_SCE 3 片選 P2.3
#define LCD_DC 2 數(shù)據(jù) P2.2
#define LCD_DN 1 數(shù)據(jù) P2.1
#define LCD_SCLK 0 時(shí)鐘 P2.0
Built with IAR Embedded Workbench Version: 5.40
*/
#include G2553.h>
#include "nokia_5110.h"

/******************************************************************************/
void main(void)
{

WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
BCSCTL3 |= LFXT1S_2; // LFXT1 = VLO
IFG1 &= ~OFIFG; // Clear OSCFault flag
__bis_SR_register(SCG1 + SCG0); // Stop DCO
BCSCTL2 |= SELM_3 ; // MCLK = LFXT1
LCD_init(); //初始化液晶
LCD_clear();
while(1)
{

//LCD_write_english_String(x,y,*s) : 英文字符串顯示函數(shù)
//輸入?yún)?shù)：*s ：英文字符串指針；
// X、Y : 顯示字符串的位置,x 0-83 ,y 0-5
LCD_write_english_string(0,0,"Nokia5110 LCD"); //寫(xiě)英文
LCD_write_english_string(0,1,"Good Luck To U"); //最多14個(gè)英文字符
//LCD_write_chinese_string(x,8y,ch_with,num.line,row): 在LCD上顯示漢字
//
//輸入?yún)?shù)：X、Y ：顯示漢字的起始X、Y坐標(biāo)；
// ch_with ：漢字點(diǎn)陣的寬度
// num ：顯示漢字的個(gè)數(shù)；
// line ：漢字點(diǎn)陣數(shù)組中的起始行數(shù)
// row ：漢字顯示的字間距
LCD_write_chinese_string(16,2,12,3,0,5); //寫(xiě)漢字
LCD_write_chinese_string(0,4,12,7,3,0); //成功源于不放棄

}

}

/*
nokia_5110.h

修改者：http://jiwm.blog.13.com
引腳描述
pin description
1 VCC(3.3V)
2 GND
3 CE
4 RST
5 DC
6 DIN
7 CLK
8 Vlcd(+5V)

*/
#ifndef __nokia_5110_h_
#define __nokia_5110_h_

#include "msp430G2553.h"

#define LCD_5110_DIR P2DIR
#define LCD_5110_OUTP2OUT

#define LCD_RST 4
#define LCD_SCE 3
#define LCD_DC 2
#define LCD_DN 1
#define LCD_SCLK 0

void LCD_init(void);
void LCD_clear(void);
void LCD_write_english_string(unsigned char X,unsigned char Y,char *s);
void LCD_write_chinese_string(unsigned char X, unsigned char Y,
unsigned char ch_with,unsigned char num,
unsigned char line,unsigned char row);
void LCD_write_char(unsigned char c);
void LCD_write_byte(unsigned char dat, unsigned char dc);
void delay_1us(void);

#endif

//nokia_5110.c

修改者：http://jiwm.blog.13.com
#include "nokia_5110.h"
#include "english_6x8_pixel.h" //寫(xiě)英文頭文件
#include "write_chinese_string_pixel.h" //寫(xiě)中文頭文件

/*-----------------------------------------------------------------------
LCD_init : 5110LCD初始化
-----------------------------------------------------------------------*/

//void delay_1us(void) //1us延時(shí)函數(shù)，i＝2時(shí)約19個(gè)機(jī)器周期，對(duì)于16M時(shí)鐘來(lái)說(shuō)，大于1uS，未用到
//{
// unsigned int i;
// for(i=0;i<2;i++);

//}

// void delay_1ms(void) //1ms延時(shí)函數(shù) MSP430未用到
// {
// unsigned int i;
// for (i=0;i<1140;i++);
// }

//void delay_nms(unsigned int n) //N ms延時(shí)函數(shù) MSP430未用到
// {
// unsigned int i=0;
// for (i=0;i// delay_1ms();
// }

void LCD_init(void)
{
// 產(chǎn)生一個(gè)讓LCD復(fù)位的低電平脈沖

LCD_5110_DIR |= (0x01 << LCD_RST) + (0x01 << LCD_SCE) + (0x01 << LCD_DC)
+ (0x01 << LCD_DN) + (0x01<< LCD_SCLK);

LCD_5110_OUT &= ~(0x01 << LCD_RST);

// LCD_RST = 1;
LCD_5110_OUT |= (0x01 << LCD_RST);

// 關(guān)閉LCD

LCD_5110_OUT &= ~(0x01 << LCD_SCE);

// 使能LCD
//LCD_SCE = 1;
LCD_5110_OUT |= (0x01 << LCD_SCE);

LCD_write_byte(0x21, 0);// 使用擴(kuò)展命令設(shè)置LCD模式
LCD_write_byte(0xc8, 0);// 設(shè)置偏置電壓
LCD_write_byte(0x06, 0);// 溫度校正
LCD_write_byte(0x13, 0);// 1:48
LCD_write_byte(0x20, 0);// 使用基本命令
LCD_clear(); // 清屏
LCD_write_byte(0x0c, 0);// 設(shè)定顯示模式，正常顯示

// 關(guān)閉LCD
LCD_5110_OUT &= ~(0x01 << LCD_SCE);
}

/*-----------------------------------------------------------------------
LCD_clear : LCD清屏函數(shù)
-----------------------------------------------------------------------*/
void LCD_clear(void)
{
unsigned int i;

LCD_write_byte(0x0c, 0);
LCD_write_byte(0x80, 0);

for (i=0; i<504; i++)
LCD_write_byte(0, 1);
}

/*-----------------------------------------------------------------------
LCD_set_XY : 設(shè)置LCD坐標(biāo)函數(shù)

輸入?yún)?shù)：X ：0－83
Y ：0－5
-----------------------------------------------------------------------*/
void LCD_set_XY(unsigned char X, unsigned char Y)
{
LCD_write_byte(0x40 | Y, 0);// column
LCD_write_byte(0x80 | X, 0); // row
}

/*-----------------------------------------------------------------------
LCD_write_char : 顯示英文字符

輸入?yún)?shù)：c ：顯示的字符；
-----------------------------------------------------------------------*/
void LCD_write_char(unsigned char c)
{
unsigned char line;

c -= 32;

for (line=0; line<6; line++)
LCD_write_byte(font6x8[c][line], 1);
}

/*-----------------------------------------------------------------------
LCD_write_english_String : 英文字符串顯示函數(shù)

輸入?yún)?shù)：*s ：英文字符串指針；
X、Y : 顯示字符串的位置,x 0-83 ,y 0-5
-----------------------------------------------------------------------*/
void LCD_write_english_string(unsigned char X,unsigned char Y,char *s)
{
LCD_set_XY(X,Y);
while (*s)
{
LCD_write_char(*s);
s++;
}
}
/*-----------------------------------------------------------------------
LCD_write_chinese_string: 在LCD上顯示漢字

輸入?yún)?shù)：X、Y ：顯示漢字的起始X、Y坐標(biāo)；
ch_with ：漢字點(diǎn)陣的寬度
num ：顯示漢字的個(gè)數(shù)；
line ：漢字點(diǎn)陣數(shù)組中的起始行數(shù)
row ：漢字顯示的字間距
測(cè)試：
LCD_write_chi(0,0,12,7,0,0);
LCD_write_chi(0,2,12,7,0,0);
LCD_write_chi(0,4,12,7,0,0);
-----------------------------------------------------------------------*/
void LCD_write_chinese_string(unsigned char X, unsigned char Y,
unsigned char ch_with,unsigned char num,
unsigned char line,unsigned char row)
{
unsigned char i,n;

LCD_set_XY(X,Y); //設(shè)置初始位置

for (i=0;i {
for (n=0; n {
if (n==ch_with) //寫(xiě)漢字的下半部分
{
if (i==0) LCD_set_XY(X,Y+1);
else
LCD_set_XY((X+(ch_with+row)*i),Y+1);
}
LCD_write_byte(write_chinese[line+i][n],1);
}
i++;
LCD_set_XY((X+(ch_with+row)*i),Y);
}
}
/*-----------------------------------------------------------------------
LCD_write_byte : 使用SPI接口寫(xiě)數(shù)據(jù)到LCD

輸入?yún)?shù)：data ：寫(xiě)入的數(shù)據(jù)；
command ：寫(xiě)數(shù)據(jù)/命令選擇；

-----------------------------------------------------------------------*/
void LCD_write_byte(unsigned char dat, unsigned char command)
{
unsigned char i;
LCD_5110_OUT &= ~(0x01 << LCD_SCE);// msp430

if (command == 0) // 傳送命令
LCD_5110_OUT &= ~(0x01 << LCD_DC);
else // 傳送數(shù)據(jù)

LCD_5110_OUT |= (0x01 << LCD_DC);
for(i=0;i<8;i++)
{
if(dat&0x80)
LCD_5110_OUT |= (0x01 << LCD_DN);
else
LCD_5110_OUT &= ~(0x01 << LCD_DN);
//SCLK = 0;
LCD_5110_OUT &= ~(0x01 << LCD_SCLK);
dat = dat << 1;
LCD_5110_OUT |= (0x01 << LCD_SCLK);
}
LCD_5110_OUT |= (0x01 << LCD_SCE);
}
/*write_chinese_string_pixel.h

修改者：http://jiwm.blog.13.com
要顯示的漢字字庫(kù)
*/

char write_chinese[][24]={

//人
{0x00,0x00,0x00,0x80,0x60,0x1F,0x60,0x80,0x00,0x00,0x00,0x00,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x01,0x02,0x04,0x08,0x00},
//生
{0x20,0x10,0x8E,0x88,0x88,0xFF,0x88,0x88,0x88,0x08,0x00,0x00,0x08,0x08,0x08,0x08,0x08,0x0F,0x08,0x08,0x08,0x08,0x08,0x00},
//中
{0x00,0xF8,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0xF8,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x01,0x00,0x00},
//成
{0x00,0xFC,0x24,0x24,0xE4,0x04,0xFF,0x04,0x85,0x66,0x04,0x00,0x08,0x07,0x00,0x02,0x0B,0x04,0x02,0x01,0x02,0x04,0x0F,0x00},
//功
{0x04,0x04,0xFC,0x04,0x04,0x08,0xFF,0x08,0x08,0x08,0xF8,0x00,0x02,0x02,0x01,0x09,0x05,0x03,0x00,0x00,0x08,0x08,0x07,0x00},
//源
{0x11,0x22,0x00,0xFF,0x01,0xF9,0xAD,0xAB,0xA9,0xF9,0x01,0x00,0x04,0x02,0x08,0x07,0x04,0x02,0x08,0x0F,0x00,0x02,0x04,0x00},
//于
{0x20,0x21,0x21,0x21,0x21,0xFF,0x21,0x21,0x21,0x21,0x20,0x00,0x00,0x00,0x00,0x08,0x08,0x0F,0x00,0x00,0x00,0x00,0x00,0x00},
//不
{0x02,0x02,0x82,0x42,0x22,0xF2,0x0E,0x22,0x42,0x82,0x02,0x00,0x01,0x01,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x00,0x01,0x00},
//放
{0x08,0xF9,0x4A,0x48,0xC8,0x20,0x10,0xEF,0x08,0xF8,0x08,0x00,0x08,0x07,0x00,0x08,0x0F,0x00,0x08,0x05,0x02,0x05,0x08,0x00},
//棄
{0x04,0x24,0x34,0xEC,0x25,0x26,0x24,0xE4,0x34,0x64,0x04,0x00,0x01,0x09,0x05,0x03,0x01,0x01,0x01,0x0F,0x01,0x01,0x01,0x00},
};

/*english_6x8_pixel.h
修改者：http://jiwm.blog.13.com

所有的英文字符表
*/

const unsigned char font6x8[][6] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // sp
{ 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00 }, // !
{ 0x00, 0x00, 0x07, 0x00, 0x07, 0x00 }, // "
{ 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // #
{ 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // $
{ 0x00, 0x62, 0x64, 0x08, 0x13, 0x23 }, // %
{ 0x00, 0x36, 0x49, 0x55, 0x22, 0x50 }, // &
{ 0x00, 0x00, 0x05, 0x03, 0x00, 0x00 }, //
{ 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00 }, // (
{ 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00 }, // )
{ 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14 }, // *
{ 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08 }, // +
{ 0x00, 0x00, 0x00, 0xA0, 0x60, 0x00 }, // ,
{ 0x00, 0x08, 0x08, 0x08, 0x08, 0x08 }, // -
{ 0x00, 0x00, 0x60, 0x60, 0x00, 0x00 }, // .
{ 0x00, 0x20, 0x10, 0x08, 0x04, 0x02 }, // /
{ 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E }, // 0
{ 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00 }, // 1
{ 0x00, 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2
{ 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31 }, // 3
{ 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10 }, // 4
{ 0x00, 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5
{ 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30 }, // 6
{ 0x00, 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7
{ 0x00, 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8
{ 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E }, // 9
{ 0x00, 0x00, 0x36, 0x36, 0x00, 0x00 }, // :
{ 0x00, 0x00, 0x56, 0x36, 0x00, 0x00 }, // ;
{ 0x00, 0x08, 0x14, 0x22, 0x41, 0x00 }, // <
{ 0x00, 0x14, 0x14, 0x14, 0x14, 0x14 }, // =
{ 0x00, 0x00, 0x41, 0x22, 0x14, 0x08 }, // >
{ 0x00, 0x02, 0x01, 0x51, 0x09, 0x06 }, // ?
{ 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E }, // @
{ 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C }, // A
{ 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36 }, // B
{ 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22 }, // C
{ 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C }, // D
{ 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41 }, // E
{ 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01 }, // F
{ 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A }, // G
{ 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F }, // H
{ 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00 }, // I
{ 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01 }, // J
{ 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41 }, // K
{ 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40 }, // L
{ 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F }, // M
{ 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F }, // N
{ 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E }, // O
{ 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06 }, // P
{ 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E }, // Q
{ 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46 }, // R
{ 0x00, 0x46, 0x49, 0x49, 0x49, 0x31 }, // S
{ 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01 }, // T
{ 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F }, // U
{ 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F }, // V
{ 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F }, // W
{ 0x00, 0x63, 0x14, 0x08, 0x14, 0x63 }, // X
{ 0x00, 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y
{ 0x00, 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z
{ 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00 }, // [
{ 0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55 }, // 55
{ 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00 }, // ]
{ 0x00, 0x04, 0x02, 0x01, 0x02, 0x04 }, // ^
{ 0x00, 0x40, 0x40, 0x40, 0x40, 0x40 }, // _
{ 0x00, 0x00, 0x01, 0x02, 0x04, 0x00 }, //
{ 0x00, 0x20, 0x54, 0x54, 0x54, 0x78 }, // a
{ 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38 }, // b
{ 0x00, 0x38, 0x44, 0x44, 0x44, 0x20 }, // c
{ 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F }, // d
{ 0x00, 0x38, 0x54, 0x54, 0x54, 0x18 }, // e
{ 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02 }, // f
{ 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C }, // g
{ 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78 }, // h
{ 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00 }, // i
{ 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00 }, // j
{ 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00 }, // k
{ 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00 }, // l
{ 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78 }, // m
{ 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78 }, // n
{ 0x00, 0x38, 0x44, 0x44, 0x44, 0x38 }, // o
{ 0x00, 0xFC, 0x24, 0x24, 0x24, 0x18 }, // p
{ 0x00, 0x18, 0x24, 0x24, 0x18, 0xFC }, // q
{ 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08 }, // r
{ 0x00, 0x48, 0x54, 0x54, 0x54, 0x20 }, // s
{ 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20 }, // t
{ 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C }, // u
{ 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C }, // v
{ 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C }, // w
{ 0x00, 0x44, 0x28, 0x10, 0x28, 0x44 }, // x
{ 0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C }, // y
{ 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44 }, // z
{ 0x14, 0x14, 0x14, 0x14, 0x14, 0x14 } // horiz lines
};