STM32驱动Nokia5110

//以下是lcd5110.c

#include"lcd5110.h"

#include"english_6x8_pixel.h"

//中文字库自己添加，如果没有请注释起来#include"write_chinese_string_pixel.h"

//lcdgpio初始化函数

//GPIOC.0.9.10.11.12推挽输出，GPIO口可自己设置

voidLCD_GPIO_init(void)

{

GPIO_InitTypeDefGPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC,ENABLE);

GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12;

GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;

GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;

GPIO_Init(GPIOC,&GPIO_InitStructure);

}

//初始化函数

voidLCD_init(void)

{

//产生一个让lcd复位的低电平脉冲

LCD_RST=0;

delay_us(1);

LCD_RST=1;

//关闭lcd

LCD_CE=0;

delay_us(1);

//使能lcd

LCD_CE=1;

delay_us(1);

LCD_write_byte(0x21,0);

LCD_write_byte(0xc8,0);

LCD_write_byte(0x06,0);

LCD_write_byte(0x13,0);

LCD_write_byte(0x20,0);

LCD_clear();

LCD_write_byte(0x0c,0);

//关闭lcd

LCD_CE=0;

}

//清屏函数

voidLCD_clear(void)

{

unsignedinti;

LCD_write_byte(0x0c,0);

LCD_write_byte(0x80,0);

for(i=0;i<504;i++)

LCD_write_byte(0,1);

}

//设置lcd坐标函数

voidLCD_set_XY(unsignedcharX,unsignedcharY)

{

LCD_write_byte(0x40|Y,0);//column

LCD_write_byte(0x80|X,0);//row

}

//显示英文字符

//输入参数c为显示的字符

voidLCD_write_char(unsignedcharc)

{

unsignedcharline;

c-=32;

for(line=0;line<6;line++)

LCD_write_byte(font6x8[c][line],1);

}

//数字显示函数

voidLCD_write_number(unsignedcharX,unsignedcharY,u16num)

{

//如果数字大于32000则显示输入错误

if(num>32000)

LCD_write_english_string(X,Y,"ERROR!");

//如果输入在32000内正常显示

else

{

unsignedchara,b,c,d,e;//a,b,c,d,e分别代表数字的万千百十个位

a=num/10000;

b=(num-a*10000)/1000;

c=(num-a*10000-b*1000)/100;

d=(num-a*10000-b*1000-c*100)/10;

e=num-a*10000-b*1000-c*100-d*10;

a+=48;

b+=48;

c+=48;

d+=48;

e+=48;

LCD_set_XY(X,Y);

LCD_write_char(a);

X++;

LCD_write_char(b);

X++;

LCD_write_char(c);

X++;

LCD_write_char(d);

X++;

LCD_write_char(e);

}

}

//英文字符串显示函数

//输入参数*s为英文字符串指针

//xy为显示字符串的位置x0-83，y0-5

voidLCD_write_english_string(unsignedcharX,unsignedcharY,charchar*s)

{

LCD_set_XY(X,Y);

while(*s)

{

LCD_write_char(*s);

s++;

}

}

/*

//显示汉字，此部分自行添加字库，如果没有请注释起来

//输入参数xy为汉字起始坐标

//ch_with为汉字点阵的宽度

//num为显示汉字的个数

//line汉字点阵数组中的起始行数

//row为汉字显示的行间距

voidLCD_write_chinese_string(unsignedcharX,unsignedcharY,

unsignedcharch_with,unsignedcharnum,

unsignedcharline,unsignedcharrow)

{

unsignedchari,n;