stm3212864液晶的使用的程序输出欢迎使用

以下是在液晶屏上输出欢迎使用的示例代码，你可以根据自己的实际情况进行修改：

#include "stm32f1xx.h"

#define LCD_RS_SET GPIOB->BSRR = GPIO_BSRR_BS5
#define LCD_RS_CLR GPIOB->BSRR = GPIO_BSRR_BR5
#define LCD_RW_SET GPIOB->BSRR = GPIO_BSRR_BS6
#define LCD_RW_CLR GPIOB->BSRR = GPIO_BSRR_BR6
#define LCD_EN_SET GPIOB->BSRR = GPIO_BSRR_BS7
#define LCD_EN_CLR GPIOB->BSRR = GPIO_BSRR_BR7

void LCD_Write_Cmd(uint8_t cmd)
{
    LCD_RS_CLR;
    LCD_RW_CLR;
    GPIOA->ODR = cmd;
    LCD_EN_SET;
    LCD_EN_CLR;
}

void LCD_Write_Data(uint8_t data)
{
    LCD_RS_SET;
    LCD_RW_CLR;
    GPIOA->ODR = data;
    LCD_EN_SET;
    LCD_EN_CLR;
}

void LCD_Init()
{
    RCC->APB2ENR |= RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN;

    GPIOA->CRL |= GPIO_CRL_MODE0 | GPIO_CRL_MODE1 | GPIO_CRL_MODE2 | GPIO_CRL_MODE3 | GPIO_CRL_MODE4 | GPIO_CRL_MODE5 | GPIO_CRL_MODE6 | GPIO_CRL_MODE7;
    GPIOA->CRL &= ~(GPIO_CRL_CNF0 | GPIO_CRL_CNF1 | GPIO_CRL_CNF2 | GPIO_CRL_CNF3 | GPIO_CRL_CNF4 | GPIO_CRL_CNF5 | GPIO_CRL_CNF6 | GPIO_CRL_CNF7);

    GPIOB->CRL |= GPIO_CRL_MODE5 | GPIO_CRL_MODE6 | GPIO_CRL_MODE7;
    GPIOB->CRL &= ~(GPIO_CRL_CNF5 | GPIO_CRL_CNF6 | GPIO_CRL_CNF7);

    LCD_Write_Cmd(0x38);
    LCD_Write_Cmd(0x08);
    LCD_Write_Cmd(0x01);
    LCD_Write_Cmd(0x06);
    LCD_Write_Cmd(0x0C);
}

int main()
{
    LCD_Init();
    LCD_Write_Data('H');
    LCD_Write_Data('e');
    LCD_Write_Data('l');
    LCD_Write_Data('l');
    LCD_Write_Data('o');
    LCD_Write_Cmd(0xC0); // 设置光标位置为第2行第1列
    LCD_Write_Data('W');
    LCD_Write_Data('e');
    LCD_Write_Data('l');
    LCD_Write_Data('c');
    LCD_Write_Data('o');
    LCD_Write_Data('m');
    LCD_Write_Data('e');
    LCD_Write_Data('!');
    while(1);
}

该程序会在液晶屏上输出"Hello"和"Welcome!"，并将光标位置设置到第2行第1列。