请问STM32无法进行LCD1602忙信号检测该怎么办？

额，我用的好像从来不检测忙的。。直接拿来显示

云汉达人

要用忙显示的，我不知道你用用中断调试了么？是否可以执行，是否是延时影响的。
  时序很重要哦
  建议首先看看LCD是否可以显示，然后再调节其他。

支持一下，学习

云汉达人
#include "lcd16032.h" #include "delay.h" const uint8_t LCD_DAT0[]="白日依山尽黄河入海流"; const uint8_t LCD_DAT1[]="欲穷千里目更上一层楼"; const uint8_t LCD_DAT3[]="好雨知时节当春乃发生"; const uint8_t LCD_DAT4[]="随风潜入夜润物细无声"; //////////1602写指令函数//////// void LCD16032_writeCom(uint8_t com) { // busy(); LCD_RS_LOW; LCD_RW_LOW; LCD_EN_LOW; Delay(1000); LCD_EN_HIGH; Delay(1000); LCD_DATA=0XFF00&(com<<8); Delay(1000); LCD_EN_LOW; } //////////1602写数据函数//////// void LCD16032_writeData(uint8_t wdata) { LCD_RS_HIGH; LCD_RW_LOW; LCD_EN_LOW; Delay(1000); LCD_EN_HIGH; Delay(1000); LCD_DATA=0XFF00&(wdata<<8); Delay(1000); LCD_EN_LOW; } //////////初始化1602写指令函数//////// void LCD16032_init(void) { LCD16032_writeCom(0x30); //0011 1000 Delay(2000); LCD16032_writeCom(0x30); Delay(2000); LCD16032_writeCom(0x0F); Delay(2000); LCD16032_writeCom(0x06); Delay(2000); LCD16032_writeCom(0x01); Delay(2000); } //////////初始化1602写数据函数//////// void LCD16032_initWriteData(void) { uint8_t i; LCD16032_writeCom(0x80); for(i=0;i<20;i++) { LCD16032_writeData(LCD_DAT3); } LCD16032_writeCom(0x90); for(i=0;i<20;i++) { LCD16032_writeData(LCD_DAT4); } } void LCD16032_WriteData(uint8_t xpos,uint8_t ypos,uint8_t Data) { uint8_t address; if(ypos==0) {address = 0x80 + xpos;} else if(ypos==1) {address = 0x90 + xpos;} LCD16032_writeCom(address); LCD16032_writeData(Data); } void LCD16032_WriteString(uint8_t xpos,uint8_t ypos,uint8_t *DisplayString) { uint8_t address; if(ypos==0) {address = 0x80 + xpos;} else if(ypos==1) {address = 0x90 + xpos;} LCD16032_writeCom(address); while(*DisplayString) { LCD16032_writeData(*DisplayString); DisplayString++; } } void LCD16032_WriteString_shift(uint8_t xpos,uint8_t ypos,uint8_t *buf) { uint8_t m1; for(m1=0;m1<10;m1++) { LCD16032_WriteString(m1+xpos,ypos,buf); Delay(0xffffff); LCD16032_writeCom(0x01); Delay(0xffff); } } void LCD_GPIO_Config(void) { GPIO_InitTypeDef GPIO_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOE, ENABLE); //PIN8~15 = DB0~7 GPIO_InitStructure.GPIO_Pin =GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOE, &GPIO_InitStructure); RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin =GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOA, &GPIO_InitStructure); }

云汉达人
#include "lcd16032.h"
#include "delay.h"

const uint8_t LCD_DAT0[]="白日依山尽黄河入海流";
const uint8_t LCD_DAT1[]="欲穷千里目更上一层楼";
const uint8_t LCD_DAT3[]="好雨知时节当春乃发生";
const uint8_t LCD_DAT4[]="随风潜入夜润物细无声";




//////////1602写指令函数////////
void LCD16032_writeCom(uint8_t com)
{
//       busy();
      LCD_RS_LOW;
      LCD_RW_LOW;
   LCD_EN_LOW;
   Delay(1000);
   LCD_EN_HIGH;
   Delay(1000);

      LCD_DATA=0XFF00&(com<<8);

   Delay(1000);

      LCD_EN_LOW;

}

//////////1602写数据函数////////

void LCD16032_writeData(uint8_t wdata)
{

      LCD_RS_HIGH;
      LCD_RW_LOW;
   LCD_EN_LOW;
   Delay(1000);
   LCD_EN_HIGH;
   Delay(1000);
   LCD_DATA=0XFF00&(wdata<<8);
   Delay(1000);

      LCD_EN_LOW;

}

//////////初始化1602写指令函数////////

void LCD16032_init(void)
{
      LCD16032_writeCom(0x30);  //0011 1000
      Delay(2000);
      LCD16032_writeCom(0x30);
   Delay(2000);
      LCD16032_writeCom(0x0F);
   Delay(2000);
      LCD16032_writeCom(0x06);
   Delay(2000);
      LCD16032_writeCom(0x01);
   Delay(2000);
}

//////////初始化1602写数据函数////////

void LCD16032_initWriteData(void)
{
      uint8_t i;
      LCD16032_writeCom(0x80);
      for(i=0;i<20;i++)
      {
          LCD16032_writeData(LCD_DAT3);
      }
LCD16032_writeCom(0x90);
for(i=0;i<20;i++)
      {
          LCD16032_writeData(LCD_DAT4);
      }
}
void LCD16032_WriteData(uint8_t xpos,uint8_t ypos,uint8_t Data)
{
      uint8_t address;
   
   if(ypos==0)
{address = 0x80 + xpos;}
   else if(ypos==1)
{address = 0x90 + xpos;}

      LCD16032_writeCom(address);
      LCD16032_writeData(Data);

}
void LCD16032_WriteString(uint8_t xpos,uint8_t ypos,uint8_t *DisplayString)
{
      uint8_t address;
   
   if(ypos==0)
{address = 0x80 + xpos;}
   else if(ypos==1)
{address = 0x90 + xpos;}

      LCD16032_writeCom(address);
      while(*DisplayString)
      {
             LCD16032_writeData(*DisplayString);
    DisplayString++;
      }
}


void LCD16032_WriteString_shift(uint8_t xpos,uint8_t ypos,uint8_t *buf)
{
   uint8_t m1;
for(m1=0;m1<10;m1++)
{
LCD16032_WriteString(m1+xpos,ypos,buf);
Delay(0xffffff);
LCD16032_writeCom(0x01);
Delay(0xffff);
 }
}

void LCD_GPIO_Config(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOE, ENABLE);    
//PIN8~15 = DB0~7
GPIO_InitStructure.GPIO_Pin =GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOE, &GPIO_InitStructure);


  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); 
  GPIO_InitStructure.GPIO_Pin =GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);  
}

云汉达人
上面是我做过的可用的16032的程序 希望能有帮助

没有用中断调试过，我用延时替代忙检测，LCD可以显示的；现在我的疑问是在配置GPIO引脚时是输出模式，但是忙检测是要用输入模式的吧，怎么切换这两种模式呢？还是不用切换就能读引脚的电平呢

这个程序也没有用忙检测的吧

云汉达人
我看到的很少用忙检测的

云汉达人
实在不行 参考一下上面的

查了很多资料，就发现一个是用忙检测的，我就试了试不行。
  看来还是不用忙检测了的好