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