您好，
I2C 接了个TMP441温度传感器，读写时总是出现：
I2C wait following flag timeout at device 0x98:
Transmit-ready
Current I2C state is:
Transmit Underflow
Bus busy
I2C expected speed = 400KHz, effective speed = 392KHz
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I2C wait following flag timeout at device 0x98:
Receive-data-ready
Current I2C state is:
Transmit-ready
Transmit Underflow
Bus busy
I2C expected speed = 400KHz, effective speed = 392KHz
请问这是什么原因？（FPGA也接了该温度传感器，FPGA能读取温度）
谢谢！
