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By kepler
#78172 I make a board with stm32l475 as a controller, espwrooms2 as a slave, and finally make a demo connected with cloud via wifi. There are SPI bus and UART bus connected between stm32l475 and espwrooms2 in this board.
I want choose SPI bus as AT command send channel and also could get the feedback data from wifi module, the UART bus as user configure channel communicate between mcu and wifi module.
Currently the reference code is ESP8266_NONOS_SDK-3.0, please give me some suggestions on how to finish this demo. thanks.