Today, I finalized to implement hhtp request and parsing of xml frame to light LEDs. Now, we can regularly send requests to our server and execute actions written in xml in a web site.
For integration with others features, we had some issues. In fact, our wifi module communicates with stm32 in UART (we are using it) but also in SPI. The problem was the wifi module did a factory reset every time that we flashed the board. On the SPI bus, there is also SD Card module. By default, on wifi module SPI MISO pin is assigned by factory reset pin. When we connected the SD Card module this pin was set and wifi module did a factory reset during the stm32 reset time … To fix it, we configured this pin in input for wifi module.