基于STM32--LCD12864驱动程序.doc

STM32 LCD12864驱动程序（头文件） (2012-05-29 21:25:08)转载标签： 杂谈#ifndef LCD12864_H#define LCD12864_H #define LCD_CONTROL GPIOD /默认LCD12864的控制口在PD口#define LCD_DATAPORT GPIOD /默认LCD12864的数据口在PD口#define LCD_RESET_Pin GPIO_Pin_12 /默认LCD12864的复位引脚连接到PD.12 也可不用#define LCD_RS_Pin GPIO_Pin_13 /默认LCD12864 RS - PD.13#define LCD_RW_Pin GPIO_Pin_14 /默认LCD12864 RW - PD.14#define LCD_EN_Pin GPIO_Pin_15 /默认LCD12864 E - PD.15#define LCD_CONTROL_CLOCK RCC_APB2Periph_GPIOD /默认LCD12864的控制口时钟#define LCD_DATAPORT_CLOCK RCC_APB2Periph_GPIOD /默认LCD12864的数据口时钟#define LCD_RS_1 LCD_CONTROL-BSRR &=LCD_RS_Pin;LCD_CONTROL-BSRR |=LCD_RS_Pin /RS置高电平#define LCD_RS_0 LCD_CONTROL-BRR &=LCD_RS_Pin;LCD_CONTROL-BRR |=LCD_RS_Pin /RS置低电平#define LCD_RW_1 LCD_CONTROL-BSRR &=LCD_RW_Pin;LCD_CONTROL-BSRR |=LCD_RW_Pin /RW置高电平#define LCD_RW_0 LCD_CONTROL-BRR &=LCD_RW_Pin;LCD_CONTROL-BRR |=LCD_RW_Pin /RW置低电平#define LCD_EN_1 LCD_CONTROL-BSRR &=LCD_EN_Pin;LCD_CONTROL-BSRR |=LCD_EN_Pin /EN置高电平#define LCD_EN_0 LCD_CONTROL-BRR &=LCD_EN_Pin;LCD_CONTROL-BRR |=LCD_EN_Pin /EN置低电平#define LCD_RESET_0 LCD_CONTROL-BRR = LCD_RESET_Pin / 复位#define LCD_RESET_1 LCD_CONTROL-BSRR = LCD_RESET_Pin / 复位脚拉高#define DATAOUT LCD_DATAPORT-ODR &=0xff00;LCD_DATAPORT-ODR / 数据输出寄存器#define DATAIN LCD_DATAPORT-IDR / 数据输入寄存器#define LCD_BF (DATAIN)& 0x0080) / 忙状态void LCD_delayus(unsigned long n); /延时 n(us)void LCD_delayms(unsigned long n); /延时 n(ms)void LCD_WriteInitcmd(uint8_t initcmd); /写初始化命令void LCD_WaitLaisure(void); /一直等待到LCD内部操作完成，变为空闲状态void LCD_Writecmd(uint8_t cmd); /写命令到LCD12864void LCD_WriteByte(uint8_t byte); /写一字节数据到LCD12864void LCD_pos(uint16_t pos); /LCD显示位置设置void LCD_Setpos(uint16_t row,uint16_t col);/设定LCD12864的显示地址，根据习惯void LCD_DispChar(char ch); /显示一个字符void LCD_Setpos_DispChar(uint16_t row,uint16_t col,char ch);/在指定位置显示一个字符void LCD_DispString(char str); /显示一个字符串，显示位置需提前设定/在指定位置显示一个字符串void LCD_Setpos_DispString(uint16_t row,uint16_t col,char str);void LCD_Dispnum(uint32_t num); /显示一个不超过8位的整数，显示位置需提前设置/在指定位置显示一个不超过8位的整数void LCD_Setpos_Dispnum(uint16_t row,uint16_t col,uint32_t num);void LCD_DispDecimal(uint32_t num,uint16_t dot);/显示一个有效位不超过8位的浮点数,显示位置需要提前设定/在指定位置显示一个有效位不超过8位的浮点数void LCD_Setpos_DispDecimal(uint16_t row,uint16_t col,uint32_t num,uint16_t dot);/显示日历，显示日期与时间void LCD_DispDateTime(uint32_t year,uint16_t month,uint16_t day,uint16_t hour,uint16_t min,uint16_t sec);void LCD_DispPicture(const unsigned char picture); /显示一幅图像 128*64/屏幕整体左移一格，用于滚动显示void LCD_ShiftLeft(void);/屏幕整体右移一格，用于滚动显示void LCD_ShiftRight(void);/清屏，清除显示void LCD_Clear(void);/使光标还回原点位置void LCD_Return(void);/关显示void LCD_Close(void);/开显示void LCD_Open(void);void LCD_FlickerChar(uint16_t row,uint16_t col);/关闭字符闪烁void LCD_CloseFlicker(void);/屏幕秒闪烁一次void LCD_FlickerScreen(void);void LCD_PORT_Init(void); /LCD连接端口初始化void LCD_Init(void); /LCD配置初始化#endif #include stm32f10x.h#include stm32f10x_gpio.h#include LCD12864.h#include picture.h/延时 n(us)void LCD_delayus(unsigned long n) unsigned long j; while(n-) j=8; while(j-); /延时 n(ms)void LCD_delayms(unsigned long n) while(n-) LCD_delayus(1100);/写初始化命令void LCD_WriteInitcmd(uint8_t initcmd) LCD_RS_0; LCD_RW_0; LCD_EN_1; DATAOUT |= initcmd; LCD_delayus(600); LCD_EN_0; LCD_RW_1;/一直等待到LCD内部操作完成，变为空闲状态void LCD_WaitLaisure(void) uint16_t flag=0x00; LCD_RS_0; LCD_RW_1; do LCD_EN_0; LCD_delayus(5); LCD_EN_1; LCD_delayus(5); flag=(uint16_t)LCD_BF; while(flag);/写命令到LCD12864void LCD_Writecmd(uint8_t cmd) LCD_WaitLaisure(); LCD_RS_0; LCD_RW_0; LCD_EN_1; DATAOUT |= cmd; LCD_delayus(600); /经过测试，取600。550都不可以 LCD_EN_0; LCD_RW_1;/写一字节数据到LCD12864void LCD_WriteByte(uint8_t byte) LCD_WaitLaisure(); LCD_RS_1; LCD_RW_0; LCD_EN_1; DATAOUT |= byte; LCD_delayus(600); LCD_EN_0; LCD_RW_1;void LCD_pos(uint16_t pos) LCD_Writecmd(pos);void LCD_Setpos(uint16_t row,uint16_t col) uint16_t pos=0x00; if(row+13) pos=0x08; if(row & 0x01) pos |= 0x80; else pos |= 0x90; pos += col-1; LCD_Writecmd(pos);void LCD_DispChar(char ch) LCD_WriteByte(ch);void LCD_Setpos_DispChar(uint16_t row,uint16_t col,char ch) LCD_Setpos(row,col); LCD_WriteByte(ch);void LCD_DispString(char str) uint16_t i; for(i=0;stri!=0;i+) LCD_WriteByte(stri); void LCD_Setpos_DispString(uint16_t row,uint16_t col,char str) LCD_Setpos(row,col); LCD_DispString(str);void LCD_Dispnum(uint32_t num) char str12; uint32_t q; uint16_t wei,i,j,k; if(num=10000000)wei=8; else if(num=1000000)wei=7; else if(num=100000)wei=6; else if(num=10000)wei=5; else if(num=1000) wei=4; else if(num=100)wei=3; else if(num=10) wei=2; else wei=1; k=0; for(i=wei;i0;i-) q=1; j=1; /i=1时，q=1,得到个位 for(;j=10000000)wei=8; else if(num=1000000)wei=7; else if(num=100000)wei=6; else if(num=10000)wei=5; else if(num=1000) wei=4; else if(num=100)wei=3; else if(num=10) wei=2; else wei=1; for(i=wei;i0;i-) q=1; j=1; /i=1时，q=1,得到个位 for(;j0;i-) if(stri=0)&(stri=9) break; stri+2=0; /添加字符串结束符 for(j=0;jdot;j+,i-)/小数点后各位依次右移，准备插入 stri+1=stri; stri+1=.; /插入小数点 LCD_DispString(str);/显示浮点小数void LCD_Setpos_DispDecimal(uint16_t row,uint16_t col,uint32_t num,uint16_t dot) LCD_Setpos(row,col); LCD_DispDecimal(num,dot);void LCD_DispDateTime(uint32_t year,uint16_t month,uint16_t day,uint16_t hour,uint16_t min,uint16_t sec) /extern uint16_t enableclock; LCD_Setpos(1,0); LCD_DispString(Date:); LCD_Dispnum(uint32_t)year); LCD_DispChar(-); LCD_Dispnum(uint32_t)month); LCD_DispChar(-); LCD_Dispnum(uint32_t)day); if(month10)&(day10) /清除无效位置可能残留的显示 LCD_DispChar( ); LCD_DispChar( ); else if(month9)|(month9)&(day10) LCD_DispChar( ); LCD_Setpos(1,15); /if(enableclock) /如果开启闹铃，显示闹铃标志 / LCD_DispChar(); /else LCD_DispChar(*); /第一行结束符显示 LCD_Setpos(2,0); LCD_DispString(Time:); LCD_Dispnum(uint32_t)hour); LCD_DispChar(:); LCD_Dispnum(uint32_t)min); LCD_DispChar(:); LCD_Dispnum(uint32_t)sec); if(sec=0) LCD_DispChar(0); LCD_DispChar( ); LCD_DispChar( ); if(hour10)&(min0)&(sec10) LCD_DispChar( ); /用于消隐 LCD_Setpos(2,15); /if(enableclock) / LCD_DispChar(); /else LCD_DispChar(*);/第二行结束符显示void LCD_DispPicture(const unsigned char picture) uint16_t i,j; LCD_Writecmd(0x34); /写数据时,关闭图形显示 LCD_delayms(20); for(i=0;i32;i+) /32行 LCD_Writecmd(0x80+i); LCD_delayus(150); LCD_Writecmd(0x80); LCD_delayus(150); for(j=0;j16;j+) /一行，16个字节 LCD_WriteByte(picturej); LCD_delayus(150); LCD_delayus(150); for(i=0;i32;i+) /32行 LCD_Writecmd(0x80+i); LCD_delayus(150); LCD_Writecmd(0x80); LCD_delayus(150); for(j=0;j16;j+) /一行，16个字节 LCD_WriteByte(picturej); LCD_delayus(150); LCD_delayus(150); LCD_Writecmd(0x36); /写完数据,开图形显示 LCD_delayms(50);/屏幕整体左移一格，用于滚动显示void LCD_ShiftLeft() LCD_Writecmd(0x18);/屏幕整体右移一格，用于滚动显示void LCD_ShiftRight(void) LCD_Writecmd(0x1C);/清屏，清除显示void LCD_Clear(void) LCD_Writecmd(0x01);/使光标还回原点位置void LCD_Return(void) LCD_Writecmd(0x02);/关显示void LCD_Close(void) LCD_Writecmd(0x08);/开显示void LCD_Open(void) LCD_Writecmd(0x0C);void LCD_FlickerChar(uint16_t row,uint16_t col) LCD_Writecmd(0x0D); LCD_Setpos(row,col);/关闭字符闪烁void LCD_CloseFlicker(void) LCD_Writecmd(0x0C);/屏幕秒闪烁一次void LCD_FlickerScreen(void) LCD_Writecmd(0x08);/关显示 LCD_delayms(500); LCD_Writecmd(0x0C);/开显示 LCD_delayms(500);/LCD连接端口初始化void LCD_PORT_Init(void) GPIO_InitTypeDef LCD_port; RCC_PCLK2Config(RCC_HCLK_Div1); RCC_PCLK1Config(RCC_HCLK_Div2); /fPCLK1=36MHz RCC_APB2PeriphClockCmd(LCD_CONTROL_CLOCK ,ENABLE); /时钟使能 RCC_APB2PeriphClockCmd(LCD_DATAPORT_CLOCK ,ENABLE); LCD_port.GPIO_Pin = (uint16_t)0x00ff; LCD_port.GPIO_Speed= GPIO_Speed_50MHz; LCD_port.GPIO_Mode = GPIO_Mode_Out_OD;/OD开路输出，外接上拉电阻到5V GPIO_Init(LCD_DATAPORT,&LCD_port); LCD_port.GPIO_Pin = LCD_RESET_Pin | LCD_RS_Pin | LCD_RW_Pin | LCD_EN_Pin; LCD_port.GPIO_Speed= GPIO_Speed_50MHz; LCD_port.GPIO_Mode = GPIO_Mode_Out_OD;/OD开路输出 GPIO_Init(LCD_CONTROL,&LCD_port);void LCD_Init(void) LCD_RESET_0; LCD_delayms(300); /复位LCD12864 LCD_RESET_1; LCD_delayms(300); LCD_Writecmd(0x34); /写数据时,关闭图形显示 LCD_delayus(400); LCD_WriteInitcmd(0x38); /并行，8位，基本指令操作 LCD_delayus(200); /150 LCD_WriteInitcmd(0x38); LCD_delayus(100); LCD_WriteInitcmd(0x0C); /开显示，显示光标，用于测试 LCD_delayus(150); LCD_WriteInitcmd(0x01); /清屏 LCD_delayms(12); LCD_Writecmd(0x06); /地址自动增加 LCD_delayus(150); #include stm32f10x.h#include LCD12864.hextern const unsigned char picture1;extern const unsigned char picture2;void GPIO_Configuration(void);/延时n usvoid delay_nus(unsigned long n) unsigned long j; while(n-) j=8; while(j-); /延时n msvoid delay_nms(unsigned long n) while(n-) delay_nus(1100);/时钟配置函数 72MHz 端口配置void RCC_Configuration() RCC_PCLK2Config(RCC_HCLK_Div1); RCC_PCLK1Config(RCC_HCLK_Div2); /fPCLK1=36MHz /RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIO