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#include "LCD1602.h"
#include "delay.h"
#include "sys.h"
//8位數按位逆序
u8 BitReversed(u8 x)
{
u8 temp[8];
u8 i = 0;
u8 j = 7;
u8 result = 0;
for(i = 0;i<8;i++)
{
temp[i] = (x>>i)&0x01;
}
for(i = 0;i<8;i++)
{
result = result|(temp[j]<<(i));
j--;
}
return result;
}
void LCD_Check_Busy(void)
{
LCD1602_RS0; //RS????
delay_us(1000);
LCD1602_RW1; //RW????
delay_us(1000);
LCD1602_EN0;//EN????
delay_us(1000);
GPIO_Write(GPIOC,0Xff);
delay_ms(1000);
LCD1602_EN1; //EN????
delay_us(1000);
}
/*------------------------------------------------
寫命令
------------------------------------------------*/
void LCD_Write_Com(unsigned char com)
{ //????
LCD1602_RS0; //RS???????
delay_us(1000);
LCD1602_RW0;
delay_us(1000); //RW????
LCD1602_EN1; //EN????
delay_us(1000);
com = BitReversed(com);
GPIO_Write(GPIOA,com&0x00ff);//|(GPIO_ReadOutputData(GPIOA)&0XFF00)); //????????
delay_us(1000);
LCD1602_EN0;
}
/*------------------------------------------------
寫數據
------------------------------------------------*/
void LCD_Write_Data(unsigned char Data)
{ //????
LCD1602_RS1; //RS?????????
delay_us(1000);
LCD1602_RW0;
delay_us(1000);
LCD1602_EN1; //EN????
delay_us(1000);
Data = BitReversed(Data);
GPIO_Write(GPIOA,Data&0x00ff);//|(GPIO_ReadOutputData(GPIOA)&0XFF00));
delay_us(1000);
LCD1602_EN0;
}
/*------------------------------------------------
寫字符串
------------------------------------------------*/
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x); delay_ms(5);
}
else
{
LCD_Write_Com(0xC0 + x); delay_ms(5);
}
while (*s)
{
LCD_Write_Data( *s); delay_ms(5);
s ++;
}
}
/*------------------------------------------------
寫字符
------------------------------------------------*/
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x); delay_ms(5);
}
else
{
LCD_Write_Com(0xC0 + x); delay_ms(5);
}
LCD_Write_Data( Data);
delay_ms(5);
}
void LCD1602_write_long(unsigned char x,unsigned char y,u32 data,unsigned char num)
{
unsigned char temp[12],i = 12;
while(i--)
{
temp[i] = ' ';
}
temp[num] = '\0';
while(num--)
{
if(data || data%10)
temp[num] = data % 10 + 0x30;
data = data/10;
}
LCD_Write_String(x,y,temp); delay_ms(5);
}
/*------------------------------------------------
清屏
------------------------------------------------*/
void LCD_Clear(void)
{
LCD_Write_Com(0x01);
delay_ms(5);
}
/*------------------------------------------------*/
void LCD_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 |GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 |
GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 |GPIO_Pin_14|GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure); //GPIOC
delay_ms(15);
LCD_Write_Com(0x38);
delay_ms(5);
LCD_Write_Com(0x38);
delay_ms(5);
LCD_Write_Com(0x38);
//delay_ms(5);
LCD_Write_Com(0x38);
LCD_Write_Com(0x0C); /*ÏÔê¾¿a¼°1a±êéèÖÃ*/
delay_ms(5);
LCD_Write_Com(0x06); /*ÏÔê¾1a±êòÆ¶ˉéèÖÃ*/
delay_ms(5);
//LCD_Write_Com(0x08); /*ÏÔê¾1Ø±Õ*/
//delay_ms(5);
LCD_Write_Com(0x01); /*ÏÔê¾ÇåÆá*/
delay_ms(5);
//LCD_Write_Com(0x80);
//delay_ms(5);
}
主函數
int main(void)
{
u16 test=0;
u8 temperature=0;
u8 humidity=0;
delay_init();
NVIC_Configuration();
delay_ms(400);
LCD_Init();
USART3_Init(2400);
DHT11_Init();
delay_ms(100);
LCD_Write_String(0,0,"Pm2.5: 000ug/m3");delay_ms(5);
LCD_Write_String(0,1,"Tem:00C Hum:00%");delay_ms(5);
while(1)
{
if(test++ > 200)
{
//LCD_Write_Com(0x80);
test = 0;
Get_PM();
if(PM25_Value > 999)PM25_Value=999;
LCD_Write_Char(7,0,PM25_Value/100+0x30);
LCD_Write_Char(8,0,PM25_Value%100/10+0x30);
LCD_Write_Char(9,0,PM25_Value%10+0x30);
//LCD_Write_Com(0xC0);
DHT11_Read_Data(&temperature,&humidity);
LCD_Write_Char(4,1,temperature%100/10+0x30);
LCD_Write_Char(5,1,temperature%10+0x30);
LCD_Write_Char(13,1,humidity%100/10+0x30);
LCD_Write_Char(14,1,humidity%10+0x30);
}
delay_ms(5);
}
}

復制代碼

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