STM32F1x系列——12864

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12864的引脚图：

由图可知PSB一开始要拉高，可以接到电源上，VCC接5v电源，VSS接地，要是12864产生背光，将BLA接5v电源，BLK接地。其余引脚可以自定义接到STM32的IO上。

在接STM32的IO后，程序中应首先要对IO进行初始化，进行端口使能等操作，12864有其自带的中文字库，在程序中对字库初始化，同时写好传送数据指令的函数，输出显示内容，下面是关于12864的代码：

#include "stm32f10x.h"#include "delay.h"#include "stm32f10x_gpio.h"#define V0 PCout(1)#define RS PCout(3)#define WRD PAout(8)#define E PAout(9)#define DB0 PAout(0)#define DB1 PAout(1)#define DB2 PAout(2)#define DB3 PAout(3)#define DB4 PAout(4)#define DB5 PAout(5)#define DB6 PAout(6)#define DB7 PAout(7)#define NC PEout(10)#define RES PEout(12)#define VOUT PBout(14)void _Init(void){  GPIO_InitTypeDef  GPIO_InitStructure;  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOE, ENABLE); //使能PB,PE端口时钟 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_Pin_8|GPIO_Pin_9; //LED0-->PB.5 端口配置 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  //推挽输出 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度为50MHz GPIO_Init(GPIOA, &GPIO_InitStructure); //根据设定参数初始化GPIOA GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_3;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_Init(GPIOC, &GPIO_InitStructure);  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOE, &GPIO_InitStructure); }unsigned int temp ;void    TransferData(char data1,unsigned char DI)  //传送数据或者命令,当DI=0是,传送命令,当DI=1,传送数据.{WRD=0;RS=DI;delay_ms(1);temp = (temp&0xff00)|data1 ;GPIO_Write(GPIOA,temp) ;E=1;delay_ms(1);E=0; } void initinal(void)           //LCD字库初始化程序{           delay_ms(40);                                  RES=0;                 //复位           delay_ms(1);                         RES=1;                //复位置高           delay_ms(10);           TransferData(0x30,0);  //Extended Function Set :8BIT设置,RE=0: basic instruction set, G=0 :graphic display OFF           delay_ms(100);                     TransferData(0x30,0);  //Function Set           delay_ms(37);                        TransferData(0x08,0);  //Display on Control           delay_ms(100);                       TransferData(0x10,0);  //Cursor Display Control光标设置           delay_ms(100);                     TransferData(0x0C,0);  //Display Control,D=1,显示开           delay_ms(100);                      TransferData(0x01,0);  //Display Clear           delay_ms(10);                    TransferData(0x06,0);  //Enry Mode Set,光标从右向左加1位移动           delay_ms(100);           }void   lcd_mesg(unsigned char  *adder1  ,unsigned char locate,unsigned int number){ unsigned char i;   TransferData(locate,0);  //Set Graphic Display RAM Address   delay_ms(100); for(i=0;i<number;i++) {  TransferData(*adder1,1);   adder1++; }} int main(void) { delay_init(); _Init();   initinal() ;  while(1) { lcd_mesg("日照香炉生紫烟，",0x80,16)  ;  lcd_mesg("遥看瀑布挂前川。",0x90,16)  ; lcd_mesg("飞流直下三千尺，",0x88,16)  ;  lcd_mesg("疑是银河落九天。",0x98,16)  ;   // TransferData(0x01,0) ;   //清屏  } }

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