基于STM32液晶12864COG 初始化程序

以下是基于STM32液晶12864COG的初始化程序示例：

#include "stm32f10x.h"
#include "Delay.h"
#include "LCD12864.h"

// 定义LCD控制引脚
#define LCD_CS_PIN      GPIO_Pin_12
#define LCD_CS_PORT     GPIOB
#define LCD_RS_PIN      GPIO_Pin_13
#define LCD_RS_PORT     GPIOB
#define LCD_RW_PIN      GPIO_Pin_14
#define LCD_RW_PORT     GPIOB
#define LCD_E_PIN       GPIO_Pin_15
#define LCD_E_PORT      GPIOB
#define LCD_DB0_PIN     GPIO_Pin_0
#define LCD_DB0_PORT    GPIOC
#define LCD_DB1_PIN     GPIO_Pin_1
#define LCD_DB1_PORT    GPIOC
#define LCD_DB2_PIN     GPIO_Pin_2
#define LCD_DB2_PORT    GPIOC
#define LCD_DB3_PIN     GPIO_Pin_3
#define LCD_DB3_PORT    GPIOC
#define LCD_DB4_PIN     GPIO_Pin_4
#define LCD_DB4_PORT    GPIOC
#define LCD_DB5_PIN     GPIO_Pin_5
#define LCD_DB5_PORT    GPIOC
#define LCD_DB6_PIN     GPIO_Pin_6
#define LCD_DB6_PORT    GPIOC
#define LCD_DB7_PIN     GPIO_Pin_7
#define LCD_DB7_PORT    GPIOC

// LCD 初始化
void LCD_Init(void)
{
    // 配置控制引脚为输出模式
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.GPIO_Pin = LCD_CS_PIN | LCD_RS_PIN | LCD_RW_PIN | LCD_E_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(LCD_CS_PORT, &GPIO_InitStructure);

    // 配置数据引脚为输出模式
    GPIO_InitStructure.GPIO_Pin = LCD_DB0_PIN | LCD_DB1_PIN | LCD_DB2_PIN | LCD_DB3_PIN
        | LCD_DB4_PIN | LCD_DB5_PIN | LCD_DB6_PIN | LCD_DB7_PIN;
    GPIO_Init(LCD_DB0_PORT, &GPIO_InitStructure);

    // 初始化LCD
    LCD_Write_Command(0x30);
    Delay_ms(5);
    LCD_Write_Command(0x30);
    Delay_ms(1);
    LCD_Write_Command(0x30);
    Delay_ms(1);
    LCD_Write_Command(0x38);
    LCD_Write_Command(0x08);
    LCD_Write_Command(0x01);
    LCD_Write_Command(0x06);
    LCD_Write_Command(0x0C);
}

// 写命令
void LCD_Write_Command(uint8_t cmd)
{
    GPIO_ResetBits(LCD_RS_PORT, LCD_RS_PIN);
    GPIO_ResetBits(LCD_RW_PORT, LCD_RW_PIN);
    GPIO_SetBits(LCD_CS_PORT, LCD_CS_PIN);
    GPIO_Write(LCD_DB0_PORT, (GPIO_ReadOutputData(LCD_DB0_PORT) & 0xFF00) | cmd);
    GPIO_ResetBits(LCD_E_PORT, LCD_E_PIN);
    Delay_us(10);
    GPIO_SetBits(LCD_E_PORT, LCD_E_PIN);
    Delay_us(10);
    GPIO_ResetBits(LCD_E_PORT, LCD_E_PIN);
    Delay_us(10);
}

// 写数据
void LCD_Write_Data(uint8_t data)
{
    GPIO_SetBits(LCD_RS_PORT, LCD_RS_PIN);
    GPIO_ResetBits(LCD_RW_PORT, LCD_RW_PIN);
    GPIO_SetBits(LCD_CS_PORT, LCD_CS_PIN);
    GPIO_Write(LCD_DB0_PORT, (GPIO_ReadOutputData(LCD_DB0_PORT) & 0xFF00) | data);
    GPIO_ResetBits(LCD_E_PORT, LCD_E_PIN);
    Delay_us(10);
    GPIO_SetBits(LCD_E_PORT, LCD_E_PIN);
    Delay_us(10);
    GPIO_ResetBits(LCD_E_PORT, LCD_E_PIN);
    Delay_us(10);
}

// 清屏
void LCD_Clear(void)
{
    LCD_Write_Command(0x01);
    Delay_ms(10);
}

// 显示字符串
void LCD_Show_String(uint8_t x, uint8_t y, char *str)
{
    uint8_t i = 0;
    switch (y)
    {
    case 0:
        LCD_Write_Command(0x80 + x);
        break;
    case 1:
        LCD_Write_Command(0xC0 + x);
        break;
    case 2:
        LCD_Write_Command(0x90 + x);
        break;
    case 3:
        LCD_Write_Command(0xD0 + x);
        break;
    default:
        break;
    }
    while (str[i] != '\0')
    {
        LCD_Write_Data(str[i]);
        i++;
    }
}

这是一个简单的初始化程序示例，可以实现LCD的基本功能，如清屏、显示字符串等。你需要根据自己的硬件环境和需要进行适当的修改。