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How to use the other UART in sn8200(Discover Wi-Fi)?

Former Member

Hello,

I am a new in this conversation;

 

I have difficulty handling Discover Wi-Fi.

Currently, I am using keil vision and stm32f407 as a host mcu device

Also, I am trying to modify the example code but it is not working well. I need help and advice.

In the example, PB6 and PB7 are used to communicate with host mcu. Unfortunately, I have already assigned these pins to the another function. So I changed and tried several times such as UART1 to UART2, UART1 to UART3 and UART1 to UART1(PA9,PA10)

Surprisingly, It is only operated in PB6,PB7....

 

Does anybody know what happen in here and how to change it?

I tried the EWW website and others... it did not work..

 

I am really looking forward to meeting your answer.

 

Thanks

Parents

  • Can you first remove other things and just get demo working? That way we can eliminate hardware issues.

    Clem

  • in reply to clem57

    @Clem

    I found one problem.

    A problem is that Tx pin is not changed even if I changed it code well.

     

    1. Given example , Tx, Rx are assigned PB6,PB7 respectively.

    2. I changed it to UART2 and Tx, Rx are assigned PA2,PA3 respectively and wiring is also well.

    3. I scope PA2 and PA3 then, PA3 state is high butt PA1 is low.

    and I also scope to UART1 which are PB6 and PB7. PB6 is still high and PB7 is low.

     

    Summary: Only UART Tx is not changed...

    Could you give me advice and share your idea with me?

    It would be very helpful

    Thanks 

Reply
  • in reply to clem57

    @Clem

    I found one problem.

    A problem is that Tx pin is not changed even if I changed it code well.

     

    1. Given example , Tx, Rx are assigned PB6,PB7 respectively.

    2. I changed it to UART2 and Tx, Rx are assigned PA2,PA3 respectively and wiring is also well.

    3. I scope PA2 and PA3 then, PA3 state is high butt PA1 is low.

    and I also scope to UART1 which are PB6 and PB7. PB6 is still high and PB7 is low.

     

    Summary: Only UART Tx is not changed...

    Could you give me advice and share your idea with me?

    It would be very helpful

    Thanks 

Children