|
|
|
|
|
#include "lcd1602.h"
|
|
|
|
|
|
|
|
|
|
|
|
void LCD1602_GPIOInit(void)
|
|
|
|
|
|
{
|
|
|
|
|
|
//<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>IO<EFBFBD><EFBFBD>
|
|
|
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
|
|
|
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC, ENABLE);
|
|
|
|
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;
|
|
|
|
|
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
|
|
|
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
|
|
|
|
|
|
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
|
|
|
|
|
|
|
|
|
|
|
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_OD;
|
|
|
|
|
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
|
|
|
|
|
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void LCD1602_Write_Cmd(u8 cmd)
|
|
|
|
|
|
{
|
|
|
|
|
|
LCD1602_RS=0;
|
|
|
|
|
|
LCD1602_RW=0;
|
|
|
|
|
|
LCD1602_EN=0;
|
|
|
|
|
|
GPIO_WriteLow(GPIOA,cmd);
|
|
|
|
|
|
delay_us(5);
|
|
|
|
|
|
LCD1602_EN=1;
|
|
|
|
|
|
delay_ms(2);
|
|
|
|
|
|
LCD1602_EN=0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void LCD1602_Write_Dat(u8 dat)
|
|
|
|
|
|
{
|
|
|
|
|
|
LCD1602_RS=1;
|
|
|
|
|
|
LCD1602_RW=0;
|
|
|
|
|
|
LCD1602_EN=0;
|
|
|
|
|
|
GPIO_WriteLow(GPIOA,dat);
|
|
|
|
|
|
delay_us(5);
|
|
|
|
|
|
LCD1602_EN=1;
|
|
|
|
|
|
delay_ms(2);
|
|
|
|
|
|
LCD1602_EN=0;
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void LCD1602_ClearScreen(void)
|
|
|
|
|
|
{
|
|
|
|
|
|
LCD1602_Write_Cmd(0x01);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void LCD1602_Set_Cursor(u8 x, u8 y)
|
|
|
|
|
|
{
|
|
|
|
|
|
if(y==0)
|
|
|
|
|
|
LCD1602_Write_Cmd(0x80+x);
|
|
|
|
|
|
else
|
|
|
|
|
|
LCD1602_Write_Cmd(0x80+0x40+x);;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void LCD1602_Show_Str(u8 x,u8 y,u8 *str)
|
|
|
|
|
|
{
|
|
|
|
|
|
LCD1602_Set_Cursor(x, y);
|
|
|
|
|
|
while(*str!='\0')
|
|
|
|
|
|
{
|
|
|
|
|
|
LCD1602_Write_Dat(*str++);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void LCD1602_Init()
|
|
|
|
|
|
{
|
|
|
|
|
|
LCD1602_GPIOInit();
|
|
|
|
|
|
//<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>LCD1602
|
|
|
|
|
|
LCD1602_Write_Cmd(0x38);//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>8λ<EFBFBD><EFBFBD>ʽ,2<EFBFBD><EFBFBD>,5x7
|
|
|
|
|
|
LCD1602_Write_Cmd(0x0c);//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ,<EFBFBD>ع<EFBFBD><EFBFBD>,<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˸
|
|
|
|
|
|
LCD1602_Write_Cmd(0x06);//<EFBFBD>趨<EFBFBD><EFBFBD><EFBFBD>뷽ʽ,<EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD>,<EFBFBD><EFBFBD>ַ<EFBFBD>Զ<EFBFBD>+1
|
|
|
|
|
|
LCD1602_Write_Cmd(0x01);//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
delay_ms(5);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
