/******************Private includes**********************/
/**************************end***************************/

/********************Private define**********************/
/**************************end***************************/

/*******************Private variables********************/
SemaphoreHandle_t xHandleSemaphoreMutex = NULL;
/**************************end***************************/

/********************Static variables********************/

/**************************end***************************/

/**********************static function*******************/
static void OLED_Task1(void *parameter);
static void OLED_Task2(void *parameter);
/**************************end***************************/

/*********************extern variables*******************/
/**************************end***************************/

#include <U8g2lib.h>
#include <Wire.h>
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

void setup() {
  BaseType_t xReturn = pdPASS;
  Serial.begin(115200);
  u8g2.begin();
  xHandleSemaphoreMutex = xSemaphoreCreateMutex();
	if (xHandleSemaphoreMutex == NULL)
	{
		Serial.print("Semaphore Mutex Create Error");
	}
  xReturn = xSemaphoreGive(xHandleSemaphoreMutex);
    if (xTaskCreatePinnedToCore((TaskFunction_t)OLED_Task1,
									   (const char *)"OLED_Task1",
									   (uint32_t)2048,
									   (void *)NULL,
									   (UBaseType_t)1,
                     NULL,
                     (UBaseType_t)1) == pdPASS)
                     {
                        Serial.print( "OLED1 Task Create Sucessed\n" );
                     }
        if (xTaskCreatePinnedToCore((TaskFunction_t)OLED_Task2,
									   (const char *)"OLED_Task2",
									   (uint32_t)2048,
									   (void *)NULL,
									   (UBaseType_t)2,
                     NULL,
                     (UBaseType_t)0) == pdPASS)
                     {
                        Serial.print( "OLED2 Task Create Sucessed\n" );
                     }
}

void loop() {

}

static void OLED_Task1(void *parameter)
{
  BaseType_t xReturn;
  uint8_t i;
  while(1)
  {
    Serial.print("OLED1_Task 获取OLED使用权限互斥量\n");
    xReturn = xSemaphoreTake(xHandleSemaphoreMutex,portMAX_DELAY);
    if (xReturn == pdTRUE)
    {
      u8g2.clearBuffer();					// clear the internal memory
      //u8g2.setFont(u8g2_font_ncenB08_tr);	// choose a suitable font
      // u8g2.drawStr(15, 10, "OLED_Task1");	// write something to the internal memory
      // u8g2.setFont(u8g2_font_unifont_t_symbols);
      // u8g2.drawGlyph(5, 20, 0x2603);	/* dec 9731/hex 2603 Snowman */
      for(i=0;i<32;i++)
      {
        u8g2.drawCircle(64, 32, 10+i*2, U8G2_DRAW_ALL);
        u8g2.sendBuffer();					// transfer internal memory to the display
         Serial.print("OLED1_Task Runing");
      }
    }
      Serial.print("OLED1_Task 释放OLED使用权限互斥量\n");
		  xReturn = xSemaphoreGive(xHandleSemaphoreMutex);
      vTaskDelay(500);
  }

}
static void OLED_Task2(void *parameter)
{
  BaseType_t xReturn;
  while(1)
  {
    Serial.print("OLED2_Task 获取OLED使用权限互斥量\n");
    xReturn = xSemaphoreTake(xHandleSemaphoreMutex,portMAX_DELAY);
    if (xReturn == pdTRUE)
    {
      u8g2.clearBuffer();					// clear the internal memory
      u8g2.setFont(u8g2_font_ncenB08_tr);	// choose a suitable font
      u8g2.drawStr(15, 10, "OLED_Task2");	// write something to the internal memory
      u8g2.sendBuffer();					// transfer internal memory to the display
      Serial.print("OLED2_Task Runing");
    }
      Serial.print("OLED2_Task 释放OLED使用权限互斥量\n");
		  xReturn = xSemaphoreGive(xHandleSemaphoreMutex);
      vTaskDelay(500);
  }

}