Web Server Demo Issues on B-U585I-IOT02A

[mwh]

I have been trying to run the IOT_HTTP_WebServer Demo on the B-U585I-IOT02A board, and the program seems to get stuck in an infinite loop. It will enter the app_entry() function and then reach the the line that contains if (webserver_wifi_connect() != WEBSERVER_OK), which then calls a bunch of other functions. It ends up in a function called noos_sem_wait() in the file mx_rtos_abs.c and it seems to loop infinitely. I am not sure how to debug this and any help would be appreciated.

[STea · Accepted solution]

Hello @mwh ,

are you following the steps depicted in the Readme.MD file of this example?

note that:

  As the application requires a preinstalled filesystem in the OctoSPI flash memory, the the bin image <code> Web_Content/web_demo.bin </code>, should be flashed using the following command:

    <INSTALL_PATH>/STM32_Programmer_CLI.exe -c port=swd -w "Web_Content/web_demo.bin" 0x70000000 -v -el "<INSTALL_PATH>/STM32CubeProgrammer/bin/ExternalLoader/MX25LM51245G_STM32U585I-IOT02A.stldr"

please make sure you check all these steps:

### <b>Hardware and Software environment</b>

 - To use the EMW3080B MXCHIP Wi-Fi module functionality, 2 software components are required:
   1. The module driver running on the STM32 device
   2. The module firmware running on the EMW3080B Wi-Fi module

 - This application uses an updated version of the EMW3080B MXCHIP Wi-Fi module driver V2.3.4.

 - The B-U585I-IOT02A Discovery board Revision C is delivered with the EMW3080B MXCHIP Wi-Fi module firmware V2.1.11;
   to upgrade your board with the required version V2.3.4, please visit [X-WIFI-EMW3080B](https://www.st.com/en/development-tools/x-wifi-emw3080b.html),
   using the `EMW3080update_B-U585I-IOT02A-RevC_V2.3.4_SPI.bin` file under the V2.3.4/SPI folder.

 - Please note that module firmware version V2.1.11 is not backwards compatible with the driver V2.3.4 (the V2.1.11 module firmware is compatible with the driver versions from V2.1.11 to V2.1.13).
 - The module driver is available under [/Drivers/BSP/Components/mx_wifi](../../../../../Drivers/BSP/Components/mx_wifi/), and its version is indicated in the [Release_Notes.html](../../../../../Drivers/BSP/Components/mx_wifi/Release_Notes.html) file.

 - Be aware that some STM32U5 SW packages (for examples X-CUBE-AZURE and X-CUBE-AWS) may continue to use older version of the EMW3080B MXCHIP module firmware;
   thanks to refer to the release notes of each SW package to know the recommended module firmware's version which can be retrieved from this page
   [X-WIFI-EMW3080B](https://www.st.com/en/development-tools/x-wifi-emw3080b.html).

 - This application has been tested with B-U585I-IOT02A (MB1551-U585AI) boards Revision: RevC and can be easily tailored to any other supported device and development board.

 - This application uses USART1 to display logs, the hyperterminal configuration is as follows:
      - BaudRate = 115200 baud
      - Word Length = 8 Bits
      - Stop Bit = 1
      - Parity = None
      - Flow control = None


###  <b>How to use it ?</b>

In order to make the program work, you must do the following :

 - Load the binary file web_demo.bin located on Nx_WebServer\Web_Content on the octospi. (**see notes**)

 - Open your preferred toolchain

 - On <code> Core/Inc/mx_wifi_conf.h </code> , Edit your Wifi Settings (WIFI_SSID,WIFI_PASSWORD)  

 - Rebuild all files and load your image into target memory

 - Run the application

Regards