can't connect the X-NUCLEO-GNSS1A1 via I2C
stm32 board: stm32f446re
Hi, recently, I bought the expansion board X-NUCLEO-GNSS1A1, and I've managed to communicate it with USART. However, I have a hard time to do that with I2C, it stuck at slave address transferring.
In the beginning, I thought that it was my problem, so I use the I2C code in expansion package , compare to that of USART, which function pretty good, the command getgnsmsg in I2C gives me the following result:

Other commands look normal, so I assume they function properly.
And the version of the firmware is (by command 8 and type "$PSTMGETSWVER,6")
Version Info: [ BINIMG_4.6.8.2_ARM ]
Please help, and thanks in advance,
