基于stm32战舰版+ucosiii+stemwin下的dht11波形显示实验失败

李好先生 · 发表于 2021-7-3 00:04:50

各位大佬，小弟用原子哥的stm32战舰版配置stemwin+ucosiii的例程，并且加上了emwin的官方波形显示例程（WIDGET_GraphyT）想做一个dht11温湿度波形显示器，结果波形一直为0，然而我去掉stemwin后，只用ucosiii创建dht11任务，直接用原子哥库函数里的DHT11例程却可以正常的显示温湿度数值。我尝试将temperature和humidity两个值定位全局变量，然后将WIDGET_GraphyT的maintask()函数修改为带参数，然后通过调用例程函数里的DHT11_Read_Data(&temperature,&humidity)将值赋给maintask();可是这种方法最终失败了，但是如果不用DHT11_Read_Data(&temperature,&humidity)，直接修改全局变量，波形却能够正常的显示修改后的赋值，之后我又想了一个办法，不创建DHT11任务，直接在显示例程（WIDGET_GraphyT）里添加DHT11的代码，可最后还是不行，最后我又尝试在stemwin+ucosiii的配置下，不使用emwin的官方波形显示例程（WIDGET_GraphyT），直接使用emwin的GUI_DispDecAt（）函数，取代DHT11库函数例程里的LCD_ShowNum（），结果发现显示的温湿度数值是错误值，并且不会更新，实在不知道该怎么办了，求各位大佬能帮帮忙！

李好先生 · 发表于 2021-7-3 08:55:26

主函数代码如下：
#include "led.h"
#include "beep.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "ILI93xx.h"
#include "usart.h"
#include "24cxx.h"
#include "flash.h"
#include "touch.h"
#include "sram.h"
#include "timer.h"
#include "sdio_sdcard.h"
#include "malloc.h"
#include "GUI.h"
#include "ff.h"
#include "exfuns.h"
#include "w25qxx.h"
#include "includes.h"

#include "WM.h"
#include "DIALOG.h"

#include "GRAPH.h"

#include "dht11.h"
#include <stdlib.h>
#include <string.h>

u8 temperature;
u8 humidity;
/************************************************
ALIENTEK战舰STM32开发板STemWin实验
STemWin GUIBulider使用
技术支持：www.openedv.com
淘宝店铺：http://eboard.taobao.co
关注微信公众平台微信号："正点原子"，免费获取STM32资料。
广州市星翼电子科技有限公司
作者：正点原子 @ALIENTEK
************************************************/

//任务优先级
#define START_TASK_PRIO 3
//任务堆栈大小
#define START_STK_SIZE 1024
//任务控制块
OS_TCB StartTaskTCB;
//任务堆栈
CPU_STK START_TASK_STK[START_STK_SIZE];
//任务函数
void start_task(void *p_arg);

//TOUCH任务
//设置任务优先级
#define TOUCH_TASK_PRIO 4
//任务堆栈大小
#define TOUCH_STK_SIZE 128
//任务控制块
OS_TCB TouchTaskTCB;
//任务堆栈
CPU_STK TOUCH_TASK_STK[TOUCH_STK_SIZE];
//touch任务
void touch_task(void *p_arg);

//EMWINDEMO任务
//设置任务优先级
#define EMWINDEMO_TASK_PRIO 6
//任务堆栈大小
#define EMWINDEMO_STK_SIZE 2048
//任务控制块
OS_TCB EmwindemoTaskTCB;
//任务堆栈
CPU_STK EMWINDEMO_TASK_STK[EMWINDEMO_STK_SIZE];
//emwindemo_task任务
void emwindemo_task(void *p_arg);

//DHT11任务
//设置任务优先级
#define DHT11_TASK_PRIO 5
//任务堆栈大小
#define DHT11_STK_SIZE 64
//任务控制块
OS_TCB Dht11TaskTCB;
//任务堆栈
CPU_STK DHT11_TASK_STK[DHT11_STK_SIZE];
//dht11_task任务
void dht11_task(void *p_arg);

int main(void)
{
OS_ERR err;
CPU_SR_ALLOC();

delay_init();         //延时函数初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
uart_init(115200);      //串口初始化为115200
LED_Init();       //LED端口初始化
TFTLCD_Init(); //LCD初始化
KEY_Init();      //按键初始化
BEEP_Init(); //初始化蜂鸣器
FSMC_SRAM_Init(); //初始化SRAM
my_mem_init(SRAMIN); //初始化内部内存池
my_mem_init(SRAMEX);    //初始化外部内存池

exfuns_init(); //为fatfs文件系统分配内存
// f_mount(fs[0],"0:",1); //挂载SD卡
//f_mount(fs[1],"1:",1); //挂载FLASH
TP_Init(); //触摸屏初始化

OSInit(&err); //初始化UCOSIII
OS_CRITICAL_ENTER(); //进入临界区
//创建开始任务
OSTaskCreate((OS_TCB * )&StartTaskTCB, //任务控制块
   (CPU_CHAR * )"start task", //任务名字
               (OS_TASK_PTR )start_task, //任务函数
               (void * )0, //传递给任务函数的参数
               (OS_PRIO    )START_TASK_PRIO,    //任务优先级
               (CPU_STK * )&START_TASK_STK[0], //任务堆栈基地址
               (CPU_STK_SIZE)START_STK_SIZE/10, //任务堆栈深度限位
               (CPU_STK_SIZE)START_STK_SIZE, //任务堆栈大小
               (OS_MSG_QTY  )0, //任务内部消息队列能够接收的最大消息数目,为0时禁止接收消息
               (OS_TICK    )0, //当使能时间片轮转时的时间片长度，为0时为默认长度，
               (void    * )0, //用户补充的存储区
               (OS_OPT    )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR, //任务选项
               (OS_ERR * )&err); //存放该函数错误时的返回值
OS_CRITICAL_EXIT(); //退出临界区
OSStart(&err);  //开启UCOSIII
while(1);
}

//开始任务函数
void start_task(void *p_arg)
{
OS_ERR err;
CPU_SR_ALLOC();
p_arg = p_arg;

CPU_Init();
#if OS_CFG_STAT_TASK_EN > 0u
OSStatTaskCPUUsageInit(&err);    //统计任务
#endif

#ifdef CPU_CFG_INT_DIS_MEAS_EN //如果使能了测量中断关闭时间
CPU_IntDisMeasMaxCurReset();
#endif

#if OS_CFG_SCHED_ROUND_ROBIN_EN  //当使用时间片轮转的时候
   //使能时间片轮转调度功能,时间片长度为1个系统时钟节拍，既1*5=5ms
OSSchedRoundRobinCfg(DEF_ENABLED,1,&err);
#endif
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC,ENABLE);//开启CRC时钟
WM_SetCreateFlags(WM_CF_MEMDEV); //启动所有窗口的存储设备
GUI_Init();    //STemWin初始化

OS_CRITICAL_ENTER(); //进入临界区

//STemWin Demo任务
OSTaskCreate((OS_TCB*    )&EmwindemoTaskTCB,
   (CPU_CHAR* )"Emwindemo task",
               (OS_TASK_PTR )emwindemo_task,
               (void*    )0,
               (OS_PRIO    )EMWINDEMO_TASK_PRIO,
               (CPU_STK* )&EMWINDEMO_TASK_STK[0],
               (CPU_STK_SIZE)EMWINDEMO_STK_SIZE/10,
               (CPU_STK_SIZE)EMWINDEMO_STK_SIZE,
               (OS_MSG_QTY  )0,
               (OS_TICK    )0,
               (void*    )0,
               (OS_OPT    )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
               (OS_ERR*    )&err);
//触摸屏任务
OSTaskCreate((OS_TCB*    )&TouchTaskTCB,
   (CPU_CHAR* )"Touch task",
               (OS_TASK_PTR )touch_task,
               (void*    )0,
               (OS_PRIO    )TOUCH_TASK_PRIO,
               (CPU_STK* )&TOUCH_TASK_STK[0],
               (CPU_STK_SIZE)TOUCH_STK_SIZE/10,
               (CPU_STK_SIZE)TOUCH_STK_SIZE,
               (OS_MSG_QTY  )0,
               (OS_TICK    )0,
               (void*    )0,
               (OS_OPT    )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
               (OS_ERR*    )&err);
//DHT11任务
OSTaskCreate((OS_TCB*    )&Dht11TaskTCB,
   (CPU_CHAR* )"Dht11 task",
               (OS_TASK_PTR )dht11_task,
               (void*    )0,
               (OS_PRIO    )DHT11_TASK_PRIO,
               (CPU_STK* )&DHT11_TASK_STK[0],
               (CPU_STK_SIZE)DHT11_STK_SIZE/10,
               (CPU_STK_SIZE)DHT11_STK_SIZE,
               (OS_MSG_QTY  )0,
               (OS_TICK    )0,
               (void*    )0,
               (OS_OPT    )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR,
               (OS_ERR*    )&err);

OS_TaskSuspend((OS_TCB*)&StartTaskTCB,&err); //挂起开始任务
OS_CRITICAL_EXIT(); //退出临界区
}

//EMWINDEMO任务
void emwindemo_task(void *p_arg)
{
OS_ERR err;
//更换皮肤
BUTTON_SetDefaultSkin(BUTTON_SKIN_FLEX);
CHECKBOX_SetDefaultSkin(CHECKBOX_SKIN_FLEX);
DROPDOWN_SetDefaultSkin(DROPDOWN_SKIN_FLEX);
FRAMEWIN_SetDefaultSkin(FRAMEWIN_SKIN_FLEX);
HEADER_SetDefaultSkin(HEADER_SKIN_FLEX);
MENU_SetDefaultSkin(MENU_SKIN_FLEX);
MULTIPAGE_SetDefaultSkin(MULTIPAGE_SKIN_FLEX);
PROGBAR_SetDefaultSkin(PROGBAR_SKIN_FLEX);
RADIO_SetDefaultSkin(RADIO_SKIN_FLEX);
SCROLLBAR_SetDefaultSkin(SCROLLBAR_SKIN_FLEX);
SLIDER_SetDefaultSkin(SLIDER_SKIN_FLEX);
SPINBOX_SetDefaultSkin(SPINBOX_SKIN_FLEX);

MainTask(temperature,humidity);}

//TOUCH任务
void touch_task(void *p_arg)
{
OS_ERR err;
while(1)
{
GUI_TOUCH_Exec();
OSTimeDlyHMSM(0,0,0,5,OS_OPT_TIME_PERIODIC,&err);//延时5ms
}
}

//DHT11任务
void dht11_task(void *p_arg)
{
OS_ERR err;

POINT_COLOR=RED; //设置字体为红色

while(DHT11_Init()) //DHT11初始化
{
LCD_ShowString(30,130,200,16,16,"DHT11 Error");
delay_ms(200);

}


while(1) //DHT11初始化
{

DHT11_Read_Data(&temperature,&humidity); //读取温湿度值

   OSTimeDlyHMSM(0,0,0,100,OS_OPT_TIME_PERIODIC,&err);//延时100ms

}
}

李好先生 · 发表于 2021-7-3 08:57:02

stemwin官方例程（在static void _AddValues（）处略有修改）如下：
/*********************************************************************
*             SEGGER Microcontroller GmbH & Co. KG             *
*       Solutions for real time microcontroller applications       *
**********************************************************************
*                                                                   *
*       (c) 1996 - 2014  SEGGER Microcontroller GmbH & Co. KG    *
*                                                                   *
*       Internet: www.segger.com Support:  support@segger.com *
*                                                                   *
**********************************************************************

** emWin V5.26 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws. Knowledge of the
source code may not be used to write a similar product.  This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File       : WIDGET_Graph.c
Purpose    : Demonstrates the use of the GRAPH widget
Requirements: WindowManager - (x)
            MemoryDevices - ( )
            AntiAliasing  - ( )
            VNC-Server - ( )
            PNG-Library - ( )
            TrueTypeFonts - ( )
----------------------------------------------------------------------
*/
#include <stdlib.h>
#include <string.h>

#include "DIALOG.h"
#include "GRAPH.h"
#include "delay.h"

#include "dht11.h"
#include "WM.h"
#include "sys.h"
#include "GUI.h"
#include "includes.h"
/*********************************************************************
*
*    Defines
*
**********************************************************************
*/
#define MAX_VALUE 180

/*********************************************************************
*
*    Static data
*
**********************************************************************
*/
static GRAPH_DATA_Handle  _ahData[3]; // Array of handles for the GRAPH_DATA objects
static GRAPH_SCALE_Handle _hScaleV; // Handle of vertical scale
static GRAPH_SCALE_Handle _hScaleH; // Handle of horizontal scale

static I16 _aValue[3];
static int _Stop = 0;

static GUI_COLOR _aColor[] = {GUI_RED, GUI_GREEN}; // Array of colors for the GRAPH_DATA objects

//
// Dialog ressource
//
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
  { FRAMEWIN_CreateIndirect, "Graph widget demo",  0             , 0, 0, 800, 480, FRAMEWIN_CF_MOVEABLE },
  { GRAPH_CreateIndirect,    0,                GUI_ID_GRAPH0 , 5, 5, 675, 350 },
  { TEXT_CreateIndirect,    "Spacing X:",       0             ,  20, 370,  80,  20 },
  { TEXT_CreateIndirect,    "Spacing Y:",       0             ,  20, 415,  80,  20 },
  { SLIDER_CreateIndirect, 0,                GUI_ID_SLIDER0 ,  110, 370,  250,  40 },
  { SLIDER_CreateIndirect, 0,                GUI_ID_SLIDER1 ,  110, 415,  250,  40 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK0 , 380, 370,  80, 40 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK1 , 380, 415,  80, 40 },
  { TEXT_CreateIndirect,    "Border",          0             , 700, 10,  80,  20 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK2 , 700,  50,  80, 40 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK3 , 700,  90,  80, 40 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK4 , 700,  130, 80, 40 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK5 , 700,  170, 80, 40 },
  { TEXT_CreateIndirect,    "Effect",          0             , 700, 240,  80,  20 },
  { RADIO_CreateIndirect,    0,                GUI_ID_RADIO0 , 700, 270,  100, 100, 0, 3 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK6 , 480, 370,  80, 40 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK7 , 480, 415,  80, 40 },
  { BUTTON_CreateIndirect, "Full Screen",    GUI_ID_BUTTON0 , 685, 385,  100,  40 },
  { CHECKBOX_CreateIndirect,  0,                GUI_ID_CHECK8 , 590, 385,  80, 40 },
};

/*********************************************************************
*
*    Static code
*
**********************************************************************
*/
/*********************************************************************
*
*    _AddValues
*
* Function description
* This routine calculates new random values in dependence of the previous added values
* and adds them to the GRAPH_DATA objects
*/
static void _AddValues(u8 x,u8 y) {
_aValue[0]=x;
_aValue[1]=y;

GRAPH_DATA_YT_AddValue(_ahData[0], _aValue[0]);
GRAPH_DATA_YT_AddValue(_ahData[1], _aValue[1]);
  }

/*********************************************************************
*
*    _UserDraw
*
* Function description
* This routine is called by the GRAPH object before anything is drawn
* and after the last drawing operation.
*/
static void _UserDraw(WM_HWIN hWin, int Stage) {
  if (Stage == GRAPH_DRAW_LAST) {
char acText[] = "Temperature";
GUI_RECT Rect;
GUI_RECT RectInvalid;
int FontSizeY;

GUI_SetFont(&GUI_Font13_ASCII);
FontSizeY = GUI_GetFontSizeY();
WM_GetInsideRect(&Rect);
WM_GetInvalidRect(hWin, &RectInvalid);
Rect.x1 = Rect.x0 + FontSizeY;
GUI_SetColor(GUI_YELLOW);
GUI_DispStringInRectEx(acText, &Rect, GUI_TA_HCENTER, strlen(acText), GUI_ROTATE_CCW);
  }
}

/*********************************************************************
*
*    _ForEach
*
* Function description
* This routine hides/shows all windows except the button, graph and scroll bar widgets
*/
static void _ForEach(WM_HWIN hWin, void * pData) {
  int Id;
  int FullScreenMode;

  FullScreenMode = *(int *)pData;
  Id = WM_GetId(hWin);
  if ((Id == GUI_ID_GRAPH0) || (Id == GUI_ID_BUTTON0) || (Id == GUI_ID_VSCROLL) || (Id == GUI_ID_HSCROLL)) {
return;
  }
  if (FullScreenMode) {
WM_HideWindow(hWin);
  } else {
WM_ShowWindow(hWin);
  }
}

/*********************************************************************
*
*    _ToggleFullScreenMode
*
* Function description
* This routine switches between full screen mode and normal mode by hiding or showing the
* widgets of the dialog, enlarging/shrinking the graph widget and modifying some other
* attributes of the dialog widgets.
*/
static void _ToggleFullScreenMode(WM_HWIN hDlg) {
  static int FullScreenMode;
  static GUI_RECT Rect;
  static unsigned ScalePos;
  WM_HWIN hGraph;
  WM_HWIN hButton;
  WM_HWIN hClient;
  GUI_RECT RectInside;
  int xPos, yPos;

  hGraph  = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
  hButton = WM_GetDialogItem(hDlg, GUI_ID_BUTTON0);
  FullScreenMode ^= 1;
  if (FullScreenMode) {
//
// Enter the full screen mode
//
hClient = WM_GetClientWindow(hDlg);
BUTTON_SetText(hButton, "Back");
WM_MoveWindow(hButton, 0, 11);
FRAMEWIN_SetTitleVis(hDlg, 0);
WM_GetInsideRectEx(hClient, &RectInside);
WM_GetWindowRectEx(hGraph, &Rect);
WM_ForEachDesc(hClient, _ForEach, &FullScreenMode); // Hide all descendants
xPos = WM_GetWindowOrgX(hClient);
yPos = WM_GetWindowOrgY(hClient);
WM_SetWindowPos(hGraph, xPos, yPos, RectInside.x1, RectInside.y1);
ScalePos = GRAPH_SCALE_SetPos(_hScaleH, RectInside.y1 - 20);
  } else {
//
// Return to normal mode
//
BUTTON_SetText(hButton, "Full Screen");
WM_MoveWindow(hButton, 0, -11);
WM_ForEachDesc(WM_GetClientWindow(hDlg), _ForEach, &FullScreenMode); // Show all descendants
WM_SetWindowPos(hGraph, Rect.x0, Rect.y0, Rect.x1 - Rect.x0 + 1, Rect.y1 - Rect.y0 + 1);
FRAMEWIN_SetTitleVis(hDlg, 1);
GRAPH_SCALE_SetPos(_hScaleH, ScalePos);
  }
}

/*********************************************************************
*
*    _cbCallback
*
* Function description
* Callback function of the dialog
*/
static void _cbCallback(WM_MESSAGE * pMsg) {
  unsigned i;
  int    NCode;
  int    Id;
  int    Value;
  WM_HWIN  hDlg;
  WM_HWIN  hItem;

  hDlg = pMsg->hWin;
  switch (pMsg->MsgId) {
  case WM_INIT_DIALOG:
hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
//
// Add graphs
//
for (i = 0; i < GUI_COUNTOF(_aColor); i++) {
   //_aValue = date;
   _ahData = GRAPH_DATA_YT_Create(_aColor, 500, 0, 0);
   GRAPH_AttachData(hItem, _ahData);
}
//
// Set graph attributes
//
GRAPH_SetGridDistY(hItem, 25);
GRAPH_SetGridVis(hItem, 1);
GRAPH_SetGridFixedX(hItem, 1);
GRAPH_SetUserDraw(hItem, _UserDraw);
//
// Create and add vertical scale
//
_hScaleV = GRAPH_SCALE_Create( 35, GUI_TA_RIGHT, GRAPH_SCALE_CF_VERTICAL, 25);
GRAPH_SCALE_SetTextColor(_hScaleV, GUI_YELLOW);
GRAPH_AttachScale(hItem, _hScaleV);
//
// Create and add horizontal scale
//
_hScaleH = GRAPH_SCALE_Create(155, GUI_TA_HCENTER, GRAPH_SCALE_CF_HORIZONTAL, 50);
GRAPH_SCALE_SetTextColor(_hScaleH, GUI_DARKGREEN);
GRAPH_AttachScale(hItem, _hScaleH);
//
// Init check boxes
//
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK2);
CHECKBOX_SetText(hItem, "L");
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK3);
CHECKBOX_SetText(hItem, "T");
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK4);
CHECKBOX_SetText(hItem, "R");
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK5);
CHECKBOX_SetText(hItem, "B");
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK0);
CHECKBOX_SetText(hItem, "Stop");
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK1);
CHECKBOX_SetText(hItem, "Grid");
CHECKBOX_SetState(hItem, 1);
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK6);
CHECKBOX_SetText(hItem, "HScroll");
CHECKBOX_SetState(hItem, 1);
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK7);
CHECKBOX_SetText(hItem, "VScroll");
hItem = WM_GetDialogItem(hDlg, GUI_ID_CHECK8);
CHECKBOX_SetText(hItem, "MirrorX");
//
// Init slider widgets
//
hItem = WM_GetDialogItem(hDlg, GUI_ID_SLIDER0);
SLIDER_SetRange(hItem, 0, 10);
SLIDER_SetValue(hItem, 5);
SLIDER_SetNumTicks(hItem, 6);
hItem = WM_GetDialogItem(hDlg, GUI_ID_SLIDER1);
SLIDER_SetRange(hItem, 0, 20);
SLIDER_SetValue(hItem, 5);
SLIDER_SetNumTicks(hItem, 6);
//
// Init radio widget
//
hItem = WM_GetDialogItem(hDlg, GUI_ID_RADIO0);
RADIO_SetText(hItem, "3D", 0);
RADIO_SetText(hItem, "flat", 1);
RADIO_SetText(hItem, "-", 2);
//
// Init button widget
//
hItem = WM_GetDialogItem(hDlg, GUI_ID_BUTTON0);
WM_SetStayOnTop(hItem, 1);
break;
  case WM_NOTIFY_PARENT:
Id = WM_GetId(pMsg->hWinSrc);    // Id of widget
NCode = pMsg->Data.v;                // Notification code
switch (NCode) {
case WM_NOTIFICATION_CLICKED:
   switch (Id) {
   case GUI_ID_BUTTON0:
      _ToggleFullScreenMode(hDlg);
      break;
   }
   break;
case WM_NOTIFICATION_VALUE_CHANGED:
   switch (Id) {
   case GUI_ID_CHECK0:
      //
      // Toggle stop mode
      //
      _Stop ^= 1;
      break;
   case GUI_ID_CHECK1:
      //
      // Toggle grid
      //
      hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      GRAPH_SetGridVis(hItem, CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK1)));
      break;
   case GUI_ID_CHECK2:
   case GUI_ID_CHECK3:
   case GUI_ID_CHECK4:
   case GUI_ID_CHECK5:
      //
      // Toggle border
      //
      hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      GRAPH_SetBorder(hItem,
                     CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK2)) * 40,
                     CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK3)) * 5,
                     CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK4)) * 5,
                     CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK5)) * 5);
      break;
   case GUI_ID_SLIDER0:
      //
      // Set horizontal grid spacing
      //
      hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      Value = SLIDER_GetValue(pMsg->hWinSrc) * 10;
      GRAPH_SetGridDistX(hItem, Value);
      GRAPH_SCALE_SetTickDist(_hScaleH, Value);
      break;
   case GUI_ID_SLIDER1:
      //
      // Set vertical grid spacing
      //
      hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      Value = SLIDER_GetValue(pMsg->hWinSrc) * 5;
      GRAPH_SetGridDistY(hItem, Value);
      GRAPH_SCALE_SetTickDist(_hScaleV, Value);
      break;
   case GUI_ID_RADIO0:
      //
      // Set the widget effect
      //
      hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      switch (RADIO_GetValue(pMsg->hWinSrc)) {
      case 0:
      WIDGET_SetEffect(hItem, &WIDGET_Effect_3D);
      break;
      case 1:
      WIDGET_SetEffect(hItem, &WIDGET_Effect_Simple);
      break;
      case 2:
      WIDGET_SetEffect(hItem, &WIDGET_Effect_None);
      break;
      }
      break;
   case GUI_ID_CHECK6:
      //
      // Toggle horizontal scroll bar
      //
      hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      if (CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK6))) {
      GRAPH_SetVSizeX(hItem, 500);
      } else {
      GRAPH_SetVSizeX(hItem, 0);
      }
      break;
   case GUI_ID_CHECK7:
      //
      // Toggle vertical scroll bar
      //
      hItem = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      if (CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK7))) {
      GRAPH_SetVSizeY(hItem, 300);
      } else {
      GRAPH_SetVSizeY(hItem, 0);
      }
      break;
   case GUI_ID_CHECK8:
      //
      // Toggle alignment
      //
      WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
      for (i = 0; i < GUI_COUNTOF(_aColor); i++) {
      if (CHECKBOX_IsChecked(WM_GetDialogItem(hDlg, GUI_ID_CHECK8))) {
         GRAPH_DATA_YT_SetAlign(_ahData, GRAPH_ALIGN_LEFT);
         GRAPH_DATA_YT_MirrorX (_ahData, 1);
      } else {
         GRAPH_DATA_YT_SetAlign(_ahData, GRAPH_ALIGN_RIGHT);
         GRAPH_DATA_YT_MirrorX (_ahData, 0);
      }
      }
      break;
   }
   break;
}
break;
  default:
WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*    Public code
*
**********************************************************************
*/
/*********************************************************************
*
*    MainTask
*/
void MainTask(u8 x,u8 y) {
  WM_HWIN hDlg;
  WM_HWIN hGraph;

  hGraph = 0;
  GUI_Init();
  GUI_CURSOR_Show();
  WM_SetDesktopColor(GUI_BLACK);
  #if GUI_SUPPORT_MEMDEV
WM_SetCreateFlags(WM_CF_MEMDEV);
  #endif
  hDlg = GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbCallback, 0, 0, 0);

  while (1) {
#ifdef WIN32
   GUI_Delay(10);
#endif
if (!_Stop) {
   if (!hGraph) {
      hGraph = WM_GetDialogItem(hDlg, GUI_ID_GRAPH0);
   }

   _AddValues(x,y);
}
GUI_Exec();
  }
}

/*************************** End of file ****************************/

李好先生 · 发表于 2021-7-3 08:58:22

DHT11.c代码（原子例程）
#include "dht11.h"
#include "delay.h"
//////////////////////////////////////////////////////////////////////////////////
//本程序只供学习使用，未经作者许可，不得用于其它任何用途
//ALIENTEK战舰STM32开发板
//DHT11数字温湿度传感器驱动代码
//正点原子@ALIENTEK
//技术论坛:www.openedv.com
//修改日期:2012/9/12
//版本：V1.0
//版权所有，盗版必究。
//Copyright(C) 广州市星翼电子科技有限公司 2009-2019
//All rights reserved
//////////////////////////////////////////////////////////////////////////////////

//复位DHT11
void DHT11_Rst(void)
{
DHT11_IO_OUT(); //SET OUTPUT
DHT11_DQ_OUT=0; //拉低DQ
delay_ms(20); //拉低至少18ms
DHT11_DQ_OUT=1; //DQ=1
delay_us(30);      //主机拉高20~40us
}
//等待DHT11的回应
//返回1:未检测到DHT11的存在
//返回0:存在
u8 DHT11_Check(void)
{
u8 retry=0;
DHT11_IO_IN();//SET INPUT
while (DHT11_DQ_IN&&retry<100)//DHT11会拉低40~80us
{
retry++;
delay_us(1);
};
if(retry>=100)return 1;
else retry=0;
while (!DHT11_DQ_IN&&retry<100)//DHT11拉低后会再次拉高40~80us
{
retry++;
delay_us(1);
};
if(retry>=100)return 1;
return 0;
}
//从DHT11读取一个位
//返回值：1/0
u8 DHT11_Read_Bit(void)
{
u8 retry=0;
while(DHT11_DQ_IN&&retry<100)//等待变为低电平
{
retry++;
delay_us(1);
}
retry=0;
while(!DHT11_DQ_IN&&retry<100)//等待变高电平
{
retry++;
delay_us(1);
}
delay_us(40);//等待40us
if(DHT11_DQ_IN)return 1;
else return 0;
}
//从DHT11读取一个字节
//返回值：读到的数据
u8 DHT11_Read_Byte(void)
{
u8 i,dat;
dat=0;
for (i=0;i<8;i++)
{
   dat<<=1;
      dat|=DHT11_Read_Bit();//因为定义了dat为一个整型变量，所以虽然是二进制的位移操作，但返回的却是整数
}
return dat;
}
//从DHT11读取一次数据
//temp:温度值(范围:0~50°)
//humi:湿度值(范围:20%~90%)
//返回值：0,正常;1,读取失败
u8 DHT11_Read_Data(u8 *temp,u8 *humi)
{
u8 buf[5];
u8 i;
DHT11_Rst();
if(DHT11_Check()==0)
{
for(i=0;i<5;i++)//读取40位数据
{
buf=DHT11_Read_Byte();
}
if((buf[0]+buf[1]+buf[2]+buf[3])==buf[4])
{
*humi=buf[0];
*temp=buf[2];
}
}else return 1;
return 0;
}
//初始化DHT11的IO口 DQ 同时检测DHT11的存在
//返回1:不存在
//返回0:存在
u8 DHT11_Init(void)
{
GPIO_InitTypeDef  GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOG, ENABLE);    //使能PG端口时钟

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;    //PG11端口配置
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;    //推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOG, &GPIO_InitStructure);    //初始化IO口
GPIO_SetBits(GPIOG,GPIO_Pin_11);    //PG11 输出高

DHT11_Rst();  //复位DHT11
return DHT11_Check();//等待DHT11的回应
}

bin133 · 发表于 2021-7-3 21:04:32

帮顶

bbtclj · 发表于 2021-8-8 13:04:52

请各位帮顶

lukuan · 发表于 2021-10-30 19:31:13

我的dht11移植到ucos上面读取到的数据一直都不变，不知道咋回事

帐号		自动登录	找回密码
密码			立即注册

基于stm32战舰版+ucosiii+stemwin下的dht11波形显示实验失败

原子哥极力推荐 /2