stm32f103c8t6驱动1602 LCD代码

以下是stm32f103c8t6驱动1602 LCD的代码示例：

#include "stm32f10x.h"
#include "delay.h"

#define  LCD_Port	GPIOB
#define  LCD_RS_Pin	GPIO_Pin_12
#define  LCD_E_Pin	GPIO_Pin_13
#define  LCD_D4_Pin	GPIO_Pin_14
#define  LCD_D5_Pin	GPIO_Pin_15
#define  LCD_D6_Pin	GPIO_Pin_6
#define  LCD_D7_Pin	GPIO_Pin_7

void LCD_E(unsigned char is_high)
{
  if(is_high)
    GPIO_SetBits(LCD_Port, LCD_E_Pin);
  else
    GPIO_ResetBits(LCD_Port, LCD_E_Pin);
}

void LCD_RS(unsigned char is_data)
{
  if(is_data)
    GPIO_SetBits(LCD_Port, LCD_RS_Pin);
  else
    GPIO_ResetBits(LCD_Port, LCD_RS_Pin);
}

void LCD_Write(unsigned char data)
{
  GPIO_WriteBit(LCD_Port, LCD_D7_Pin, (data & 0x80) >> 7);
  GPIO_WriteBit(LCD_Port, LCD_D6_Pin, (data & 0x40) >> 6);
  GPIO_WriteBit(LCD_Port, LCD_D5_Pin, (data & 0x20) >> 5);
  GPIO_WriteBit(LCD_Port, LCD_D4_Pin, (data & 0x10) >> 4);

  LCD_E(1);
  delay_ms(1);
  LCD_E(0);
  delay_ms(1);
  
  GPIO_WriteBit(LCD_Port, LCD_D7_Pin, (data & 0x08) >> 3);
  GPIO_WriteBit(LCD_Port, LCD_D6_Pin, (data & 0x04) >> 2);
  GPIO_WriteBit(LCD_Port, LCD_D5_Pin, (data & 0x02) >> 1);
  GPIO_WriteBit(LCD_Port, LCD_D4_Pin, (data & 0x01) >> 0);

  LCD_E(1);
  delay_ms(1);
  LCD_E(0);
  delay_ms(1);
}

void LCD_Init()
{
  //设置GPIOB的时钟
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

  //设置LCD的引脚为输出
  GPIO_InitTypeDef GPIO_InitStruct;
  GPIO_InitStruct.GPIO_Pin = LCD_RS_Pin | LCD_E_Pin | LCD_D4_Pin | LCD_D5_Pin | LCD_D6_Pin | LCD_D7_Pin;
  GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(LCD_Port, &GPIO_InitStruct);

  //初始化LCD
  delay_ms(20);
  LCD_RS(0);
  LCD_Write(0x03);
  delay_ms(5);
  LCD_Write(0x03);
  delay_ms(1);
  LCD_Write(0x03);
  delay_ms(1);
  LCD_Write(0x02);
  delay_ms(1);
  LCD_Write(0x28);  //设置4位数据，2行，5x8点阵的字符
  delay_ms(1);
  LCD_Write(0x08);  //关闭显示器
  delay_ms(1);
  LCD_Write(0x01);  //清除显示
  delay_ms(1);
  LCD_Write(0x06);  //设置文字在屏幕左边，文字不动
  delay_ms(1);
  LCD_Write(0x0C);  //打开显示器，关闭光标
  delay_ms(1);
}

void LCD_Print(unsigned char row, unsigned char col, char *str)
{
  unsigned char addr;

  if(row == 1)
    addr = col - 1;
  else
    addr = col - 1 + 0x40;

  LCD_RS(0);
  LCD_Write(0x80 | addr);  //设置写入地址
  delay_ms(1);

  LCD_RS(1);
  while(*str)
  {
    LCD_Write(*str);
    str++;
  }
}

int main(void)
{
  LCD_Init();

  char *str1 = "Hello";
  char *str2 = "World";

  while(1)
  {
    LCD_Print(1, 1, str1);
    LCD_Print(2, 1, str2);
  }
}

请注意，此代码示例使用GPIOB口来控制1602 LCD显示屏，您需要修改代码中的端口号和引脚号以适应您的使用情况。此外，还可能需要根据您的实际情况修改其他参数及函数调用。