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    ljflyLV 2

    @ljfly

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    ljfly 发布的最新帖子

    • 回复: 【XR806开发板试用】使用sntp获取时间

      亲,

      sntp_get_time(NULL, &my_time);
      

      参数有错误哦,这种方式
      变量my_time应该是

      struct timeval
      

      类型的。
      sntp_get_time接口定义如下:

      /**
        * @brief Get time from the remote server.
        * @note This a blocking interface.
        * @param ntp_time: Pointer to the struct timeval.
        *        arg: The pointer of sntp module parameter
        * @retval 0:success -1:fail
        */
      int sntp_get_time(sntp_arg *arg, struct timeval *ntp_time)
      
      发布在 Wireless & Analog Series
      L
      ljfly
    • 回复: IIC通信问题异常,该怎么解决呢

      @funfulzhao 量量波形,sda,scl是不是都有,如果都有的话,写一个程序,扫一下地址,看看实际地址是哪一个,我买了一个iic的屏,地址就跟标的不一致。。。。

      发布在 Wireless & Analog Series
      L
      ljfly
    • 回复: 【XR806开发板试用】系列之二 - I2C外设使用及控制OLED屏显示

      @i_a_student 非常感谢,地址错误问题确认过了,地址搞错了,屏的地址没有按照他们标的来,太坑了。。。。

      发布在 Wireless & Analog Series
      L
      ljfly
    • 回复: 【XR806开发板试用】系列之二 - I2C外设使用及控制OLED屏显示

      @randolph 在 【XR806开发板试用】系列之二 - I2C外设使用及控制OLED屏显示 中说:

      xr_skylark\project\common\board\xr806_OHOS\board_config.c

      请教一下,我的设备初始化什么的都挺正常,但是过一会就会提示
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address

      确认过设备的地址是0x78
      我直接把宏定义为:

      #define SSD1306_I2C_ADDR        (0x78)
      

      还有哪里需要改嘛?

      详细log:

      console init success
      ssd1306_Init.
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      ssd1306_UpdateScreen, time cost: 6 ms.
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      [HAL ERR] I2C_IRQHandler():494, Invalid IIC address
      ssd1306_UpdateScreen send frame data filed: -1!
      
      发布在 Wireless & Analog Series
      L
      ljfly