Question
WiFi Connection Issue with STM32H7BI3-DK using AT Commands
Hi ST Community members,
I recently encountered a problem with the ISM43341-M4G-L44-SPI WiFi module mounted on the STM32H7BI3-DK development board. Here are the details of the issue:
Context:
- I updated my Cube Programmer, CubeIDE, and stlink firmware.
- WiFi access point scanning is successful, and I am able to see the available networks.
- I cannot join the network using the AT C0\r command.
Hardware Configuration:
- After the update, I faced difficulties powering up the board efficiently with the required voltage. So I changed the 5V Power Jumper from STLK to CHGR.
- Initially, I used a charger cable with the jumper set to STLK, and the code was working.
- Code:
The AT_ExecuteCommand function returns ES_WIFI_STATUS_UNEXPECTED_CLOSED_SOCKET when it encounters the AT_ERROR_STRING in the received data. This unexpected closed socket error occurs even when the AT command sent does not result in an error. I suspect there might be an issue with how the function is handling the received data or interpreting the AT_ERROR_STRING.
I hope this additional information helps in diagnosing my problem. If anyone has insights or suggestions, please feel free to share them. Thank you for your assistance!