1602a stm32f103zet6驱动代码

以下是一个简单的1602A液晶显示屏的驱动代码示例，基于STM32F103ZET6：

#include "stm32f10x.h"
#include "delay.h"
#include "lcd1602.h"

#define LCD1602_GPIO_RCC    RCC_APB2Periph_GPIOB
#define LCD1602_GPIO        GPIOB
#define LCD1602_RS          GPIO_Pin_0
#define LCD1602_RW          GPIO_Pin_1
#define LCD1602_EN          GPIO_Pin_10
#define LCD1602_D4          GPIO_Pin_11
#define LCD1602_D5          GPIO_Pin_12
#define LCD1602_D6          GPIO_Pin_13
#define LCD1602_D7          GPIO_Pin_14

void LCD1602_GPIO_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(LCD1602_GPIO_RCC, ENABLE);

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

    GPIO_InitStructure.GPIO_Pin = LCD1602_RS | LCD1602_RW | LCD1602_EN |
                                  LCD1602_D4 | LCD1602_D5 | LCD1602_D6 | LCD1602_D7;
    GPIO_Init(LCD1602_GPIO, &GPIO_InitStructure);
}

void LCD1602_Delay(uint16_t nCount)
{
    while(nCount--);
}

void LCD1602_EnablePulse(void)
{
    GPIO_SetBits(LCD1602_GPIO, LCD1602_EN);
    LCD1602_Delay(50);
    GPIO_ResetBits(LCD1602_GPIO, LCD1602_EN);
    LCD1602_Delay(50);
}

void LCD1602_WriteData(uint8_t data)
{
    GPIO_SetBits(LCD1602_GPIO, LCD1602_RS);
    GPIO_ResetBits(LCD1602_GPIO, LCD1602_RW);
    GPIO_Write(LCD1602_GPIO, data << 8);
    LCD1602_EnablePulse();
}

void LCD1602_WriteCmd(uint8_t cmd)
{
    GPIO_ResetBits(LCD1602_GPIO, LCD1602_RS);
    GPIO_ResetBits(LCD1602_GPIO, LCD1602_RW);
    GPIO_Write(LCD1602_GPIO, cmd << 8);
    LCD1602_EnablePulse();
}

void LCD1602_Init(void)
{
    LCD1602_GPIO_Init();

    GPIO_ResetBits(LCD1602_GPIO, LCD1602_RS | LCD1602_RW | LCD1602_EN);
    LCD1602_Delay(100000);

    LCD1602_WriteCmd(0x33);
    LCD1602_Delay(5000);
    LCD1602_WriteCmd(0x32);
    LCD1602_Delay(5000);
    LCD1602_WriteCmd(0x28);
    LCD1602_Delay(5000);
    LCD1602_WriteCmd(0x0C);
    LCD1602_Delay(5000);
    LCD1602_WriteCmd(0x06);
    LCD1602_Delay(5000);
    LCD1602_WriteCmd(0x01);
    LCD1602_Delay(5000);
}

void LCD1602_WriteString(char *str)
{
    while(*str)
    {
        LCD1602_WriteData(*str++);
    }
}

int main(void)
{
    LCD1602_Init();

    while(1)
    {
        LCD1602_WriteCmd(0x80 | 0x00); // Set cursor to first line
        LCD1602_WriteString("Hello, world!");
        LCD1602_Delay(1000000);

        LCD1602_WriteCmd(0x80 | 0x40); // Set cursor to second line
        LCD1602_WriteString("How are you?");
        LCD1602_Delay(1000000);

        LCD1602_WriteCmd(0x01); // Clear screen
        LCD1602_Delay(1000000);
    }

    return 0;
}

此示例需要使用delay库和LCD1602库，可以根据自己的实际情况进行修改。