How to enable SPI interface for WLAN instead of UART

karthik277
Posts: 8
Joined: Wed Apr 27, 2022 10:19 am

How to enable SPI interface for WLAN instead of UART

Postby karthik277 » Wed Apr 27, 2022 11:34 am

I'm working with ESP32 WROVER KIT with attached LCD Display.
It's datasheet suggest that it supports SPI interface.
However, WLAN communication happens over UART.
Is there any reference document to disable UART and enable SPI communication for ESP32-WROVER-KIT
https://dl.espressif.com/dl/schematics/ ... T_V4_1.pdf
:ugeek:

ESP_Sprite
Posts: 9730
Joined: Thu Nov 26, 2015 4:08 am

Re: How to enable SPI interface for WLAN instead of UART

Postby ESP_Sprite » Thu Apr 28, 2022 2:02 am

I don't understand your question... the kit has WLAN, UART, SPI and more peripherals, and you can use all of them at the same time dependent on the firmware you put into the devboard.

karthik277
Posts: 8
Joined: Wed Apr 27, 2022 10:19 am

Re: How to enable SPI interface for WLAN instead of UART

Postby karthik277 » Thu May 05, 2022 4:34 am

Thanks for the quick reply.
I want to enable SPI interface for WLAN data traffic.
It has SPI flash but not using SPI interface for WLAN traffic.
Using SPI interface will result in reduced WLAN throughput in general.
I want to know if there's any documentation to enable SPI interface for WLAN data traffic(possibly with any hardware changes required)
:ugeek:

ESP_Sprite
Posts: 9730
Joined: Thu Nov 26, 2015 4:08 am

Re: How to enable SPI interface for WLAN instead of UART

Postby ESP_Sprite » Fri May 06, 2022 1:21 am

Do you mean you want to use the AT firmware with SPI?

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