ESP32C3在arduino框架下的xTaskCreate异常

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求大佬解惑

问题：任务函数需要680字节。申请840字节或1024x3字节，程序没有问题。但是申请1000字节或1024字节，却提示内存溢出***ERROR*** A stack overflow in task Oled has been detected.

代码如下（在第23行）：

Code: Select all

#include <Arduino.h>
#include <U8g2lib.h>

static const byte pinSda = 4;
static const byte pinScl = 5;

static U8G2_SSD1306_128X64_NONAME_F_HW_I2C myOLed(U8G2_R0,pinSda,pinScl,U8X8_PIN_NONE);//构造对象
static const char * oledMenu[4] = {"Item 1","Item 2","Item 3","Item 4"};//指针数组定义菜单列表

TaskHandle_t oled = NULL;//oledTask的任务句柄

//函数前置声明
void oledTask(void * pvParam);
void displayMenu(int index);

void setup(){
  Serial.begin(115200);

  Serial.printf(PSTR("ToTal heap size: %d\n"), ESP.getHeapSize());
  int freeHeap = ESP.getFreeHeap();
  Serial.printf(PSTR("Free heap size: %d\n"),freeHeap);

  xTaskCreatePinnedToCore(oledTask,"Oled",1000,NULL,2,&oled,0);//任务占用的空间实际比申请的空间多372字节，该字节用于存储TCB数据。xCreateTask申请的大小不包括TCB
  freeHeap = ESP.getFreeHeap();
  Serial.printf(PSTR("Free heap size: %d\n"), freeHeap);
  int waterMark = uxTaskGetStackHighWaterMark(oled);//剩余空间（未使用）的最小值，返回的是字节！
  Serial.printf(PSTR("Min free heap of xCreate: %d\n"),waterMark);
  Serial.printf(PSTR("Used heap: %d\n"),(1000 - waterMark));


  vTaskDelete(NULL);
}

void loop(){

}

void displayMenu(int index){
  myOLed.clearBuffer();

  myOLed.drawStr(0,12,"Menu");
  myOLed.drawHLine(0,14,128);
  for(int i = 0;i < 4;i++){
    if(index == i){
      myOLed.drawStr(5,(i + 2) * 12 + 2,">");
      myOLed.drawStr(20,(i + 2) * 12 + 2,oledMenu[i]);
    }
    else{
      myOLed.drawStr(5,(i + 2) * 12 + 2,oledMenu[i]);
    }
  }

  myOLed.sendBuffer();
}

void oledTask(void * pvParam){

  myOLed.begin();
  myOLed.setFont(u8g2_font_ncenB08_tf);//设置OLed字体

  while(true){
    for(int i = 0;i < 4;i++){
      displayMenu(i);
      vTaskDelay(pdTICKS_TO_MS(500));
    }
  }
}