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ljfly

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)

ljfly

@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。。。。

ljfly

@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。。。。

ljfly

@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!

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