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user_3888
Visitor II
April 19, 2024
Question

WIFI module

  • April 19, 2024
  • 1 reply
  • 1419 views

Hello everyone,

 

I am working with the STM32H7B3I-DK board and I need to establish wi-fi module. I am facing problems with the spi2 and usart2 communication. I saw in the documentation that these are two possible ways to communicate with wifi modules. Only one (spi2 or usart2) should be used. I manage to enable USART1, but I can not see anything on console when I enabled USART2. I need help with that. It would be great if there are some codes or examples on how to establish wifi module on this board,  so I can try them. I went through all available examples for this board, but I could not find the one that could be helpfull. There is only one example that connects to the touchscreen but I want to connect by code throug STM32CubeIDE. Even the touchGFX project could not be simulated.

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    1 reply

    G
    Guillaume K
    ST Employee
    April 26, 2024

    The STM32H7B3I-DK board is configured by default to use SPI between the STM32H7 and the Wifi module.

    google "STM32H7B3I-DK schematics" , it should give MB1332-H7B3I-C02_Schematic.PDF file at st.com.

    inside the schematics document , search for wifi. you can see only the SPI2 is linked to STM32H7B3.

    there is option to connect with UART2 but you have to unsolder/solder some points.

    also the wifi module firmware may be only supporting SPI communication.

    regarding the code, in Cube H7 software package have a look at Projects\STM32H7B3I-DK\Demonstrations\ClockAndWeather

    in particular Core\Src\net_conf_es_wifi_spi.c and clock_weather_app.c

    also in Middlewares\ST\STM32_Network_Library\netif\wifi_if\es_wifi\net_es_wifi.c

    Drivers\BSP\Components\es_wifi\*.c

    I can't help you much more about this.

     

     

     

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