本人用RTOS创建了五个任务， 如下：

1.    /* RTOS 多任务创建调度机制 */
   
2.    osThreadDef(TCPSOCKETSERVER, TCP_Socket_Server, osPriorityRealtime, 0, 512);          1
   
3.    TCPSOCKETSERVERHandle = osThreadCreate(osThread(TCPSOCKETSERVER), NULL);
   
4. 
   
5.    osThreadDef(STM32F4ADC, STM32F429_ADC1_Init, osPriorityNormal, 0, 512);                2
   
6.    STM32F4ADCRHandle = osThreadCreate(osThread(STM32F4ADC), NULL);
   
7.    
   
8.    osThreadDef(RTCCLOCKTIME, RTC_CLOCK_TIME, osPriorityNormal, 0, 512);                   3
   
9.    RTCCLOCKTIMEHandle = osThreadCreate(osThread(RTCCLOCKTIME), NULL);
   
10.    
    
11.    osThreadDef(RTOSLEDTEST, RTOS_LED_TEST,osPriorityNormal, 0, 512);                       4
    
12.    RTOSLEDTESTHandle = osThreadCreate(osThread(RTOSLEDTEST), NULL);
    
13.    
    
14.    osThreadDef(RTOSKEYEXIT, RTOS_KEY_EXIT, osPriorityNormal, 0, 512);                        5
    
15.    RTOSKEYEXITHandle = osThreadCreate(osThread(RTOSKEYEXIT), NULL);

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同时运行的时候， 2,3,4,5 工作正常，1 可以创建任务，只是无法Ping通，暂停2,3,4，5 单独执行1 ，就没问题，不知道这个问题出在哪里，很愚蒙

1. /**
   
2.   ******************************************************************************
   
3.   * File Name          : main.c
   
4.   * Description        : Main program body
   
5.   ******************************************************************************
   
6.   * This notice applies to any and all portions of this file
   
7.   * that are not between comment pairs USER CODE BEGIN and
   
8.   * USER CODE END. Other portions of this file, whether
   
9.   * inserted by the user or by software development tools
   
10.   * are owned by their respective copyright owners.
    
11.   *
    
12.   * Copyright (c) 2017-2018 淮安奥创科技有限公司
    
13.   * All rights reserved.
    
14.   *
    
15.   ******************************************************************************
    
16.   */
    
17. 
    
18. /* Includes ------------------------------------------------------------------*/
    
19. #include "main.h"
    
20. #include "stm32f4xx_hal.h"
    
21. #include "tcp_socket_server.h"
    
22. #include "stm32f429_device_Init.h"
    
23. #include "stm32f4xx_oled_conf.h"
    
24. #include "stm32f4xx_oled_image.h"
    
25. #include "cmsis_os.h"
    
26. #include "lwip.h"
    
27. 
    
28. 
    
29. #define V25            0.76            // V25 = 25 °C 时的电压值 0.76 (mV)
    
30. #define KeyTaskNumber  5               // 当前需要KEY切换的任务数值
    
31. 
    
32. /* Private variables ---------------------------------------------------------*/
    
33. osThreadId TCPSOCKETSERVERHandle;
    
34. osThreadId STM32F4ADCRHandle;
    
35. osThreadId RTCCLOCKTIMEHandle;
    
36. osThreadId RTOSLEDTESTHandle;
    
37. osThreadId RTOSKEYEXITHandle;
    
38. 
    
39. /* Private function prototypes -----------------------------------------------*/
    
40. static void TCP_Socket_Server(void const * argument);
    
41. static void STM32F429_ADC1_Init(void const * argument);
    
42. static void RTC_CLOCK_TIME(void const * argument);
    
43. static void RTOS_LED_TEST(void const * argument);
    
44. static void RTOS_KEY_EXIT(void const * argument);
    
45. static void STM32_System_PowerON(void);
    
46. static void RTOS_TASK_Init(void);
    
47. 
    
48. /* USER CODE BEGIN PFP */
    
49. /* Private function prototypes -----------------------------------------------*/
    
50. 
    
51. int main(int argc, char **argv) {
    
52. 
    
53.    /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    
54.    HAL_Init();
    
55. 
    
56.    /* Configure the system clock */
    
57.    SystemClock_Config();
    
58. 
    
59.    /* Initialize all configured peripherals */
    
60.    MX_GPIO_Init();
    
61.    
    
62.    OLED_GPIO_Init();
    
63. 
    
64.    STM32_System_PowerON();
    
65. 
    
66.    MX_USART3_UART_Init();
    
67.    
    
68.    RTOS_TASK_Init();
    
69. 
    
70.    /* RTOS 开始调度内核 */
    
71.    osKernelStart();
    
72. 
    
73.    /* USER CODE BEGIN WHILE */
    
74.    while (1) {
    
75. 
    
76.    }
    
77. 
    
78. }
    
79. 
    
80. static void RTOS_TASK_Init() {
    
81.    /* RTOS 多任务创建调度机制 */
    
82.    osThreadDef(TCPSOCKETSERVER, TCP_Socket_Server, osPriorityRealtime, 0, 512);
    
83.    TCPSOCKETSERVERHandle = osThreadCreate(osThread(TCPSOCKETSERVER), NULL);
    
84. 
    
85.    osThreadDef(STM32F4ADC, STM32F429_ADC1_Init, osPriorityNormal, 0, 512);
    
86.    STM32F4ADCRHandle = osThreadCreate(osThread(STM32F4ADC), NULL);
    
87.    
    
88.    osThreadDef(RTCCLOCKTIME, RTC_CLOCK_TIME, osPriorityNormal, 0, 512);
    
89.    RTCCLOCKTIMEHandle = osThreadCreate(osThread(RTCCLOCKTIME), NULL);
    
90.    
    
91.    osThreadDef(RTOSLEDTEST, RTOS_LED_TEST,osPriorityNormal, 0, 512);
    
92.    RTOSLEDTESTHandle = osThreadCreate(osThread(RTOSLEDTEST), NULL);
    
93.    
    
94.    osThreadDef(RTOSKEYEXIT, RTOS_KEY_EXIT, osPriorityNormal, 0, 512);
    
95.    RTOSKEYEXITHandle = osThreadCreate(osThread(RTOSKEYEXIT), NULL);
    
96. }
    
97. 
    
98. static void TCP_Socket_Server(void const * argument) {
    
99.   /* LwIP 初始化栈 */
    
100.   MX_LWIP_Init();
     
101.   for(;;) {
     
102.      Tcp_Socket_Serve_Init();
     
103.      osDelay(100);
     
104.   }
     
105. }
     
106. 
     
107. static void STM32F429_ADC1_Init(void const * argument) {
     
108.    double Voltage1 = 0,Voltage2 = 0,Voltage3 = 0;
     
109.    uint32_t i = 0;
     
110.    uint32_t ADC_ConvertedValue[3];
     
111.    __IO uint16_t ADC_Temperature;
     
112.    MX_DMA_Init();
     
113.    MX_ADC1_Init();
     
114.    HAL_ADC_Start_DMA(&hadc1, (uint32_t*)&ADC_ConvertedValue, 3);
     
115.    for(;;) {
     
116.       /*
     
117.        * ADC_ConvertedValue*3.3/4096为将数据转化为电压,单位为V
     
118.        * V25 = 0.76V Avg_Slope = 2.5(mv) = 0.0025V
     
119.        * 使用以下公式计算温度：
     
120.        * 温度（单位为 °C） = {(VSENSE — V25) / Avg_Slope} + 25
     
121.        * 其中：
     
122.        * — V25 = 25 °C 时的 VSENSE 值   
     
123.        * — Avg_Slope = 温度与 VSENSE 曲线的平均斜率（以 mV/°C 或 μV/°C 表示）
     
124.        */
     
125.       for(i = 0; i < 3; i++) {
     
126.          printf("ADC1-ARM_CPU_TEMP电压采集(DMA): ");
     
127.          printf("[%d] -> %d \n\r",i, ADC_ConvertedValue[i]);
     
128.       }
     
129.       printf("-------------------------------------------- \n\r");      
     
130.       Voltage1 = (float)ADC_ConvertedValue[0] *3.3/4096;
     
131.       Voltage2 = (float)ADC_ConvertedValue[1] *3.3/4096;
     
132.       Voltage3 = (float)ADC_ConvertedValue[2] *3.3/4096;
     
133.       printf(" Voltage1 = %f \n\r Voltage2 = %f \n\r Voltage3 = %f \n\r",Voltage1, Voltage2, Voltage3);
     
134.       ADC_Temperature = (Voltage1 - V25) / 0.0025 + 25;
     
135.       printf(" CPU_TEMP = %d °C \n\r",ADC_Temperature);
     
136.       printf("-------------------------------------------- \n\r");
     
137.       osDelay(100);
     
138.    }
     
139. }
     
140. 
     
141. static void RTC_CLOCK_TIME(void const * argument) {
     
142.    /* RTC 时钟初始化函数 */
     
143.    MX_RTC_Init();
     
144.    for(;;) {
     
145.       HAL_RTC_GetTime(&hrtc, &TimeInit, RTC_FORMAT_BIN);       // 获取RTC当前时间（必须先获取时间）
     
146.       HAL_RTC_GetDate(&hrtc, &DateInit, RTC_FORMAT_BIN);       // 获取RTC当前日期
     
147.       printf("-------------------------RTC 实时时钟显示-----------------------\n\r");
     
148.       printf("公历：%2d年%d月%d日 \n\r",2000+DateInit.Year, DateInit.Month, DateInit.Date);
     
149.       printf("时间：%-2d时%d分%d秒 \n\r",TimeInit.Hours, TimeInit.Minutes, TimeInit.Seconds);
     
150.       printf("----------------------------------------------------------------\n\r");
     
151.       osDelay(100);
     
152.    }
     
153. }
     
154. 
     
155. static void RTOS_LED_TEST(void const * argument) {
     
156.    for(;;) {
     
157.       LED3_RED_SET();
     
158.       osDelay(520);
     
159.       LED3_RED_RESET();
     
160.       osDelay(520);
     
161.    }
     
162. }
     
163. 
     
164. static void RTOS_KEY_EXIT(void const * argument) {
     
165.    uint32_t count = 0;
     
166.    for(;;) {
     
167.       if(KEY_LED_SWITCH() == Key_Down) {
     
168.          count++;
     
169.       }
     
170.       if(count > KeyTaskNumber) {
     
171.          count = 0;
     
172.       }
     
173.       printf("按键计数: %d \n\r",count);
     
174.       osDelay(100);
     
175.    }
     
176. }
     
177. 
     
178. void STM32_System_PowerON() {
     
179.    OLED_IMAGES_SHOW(2,128,LiYaOSLogo);               
     
180.    HAL_Delay(2500);
     
181. }
     
182. 
     
183. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
     

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看下 分配的内存 和线程优先级