ESP32 UART control

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Autom8n
Posts: 3
Joined: Tue Mar 13, 2018 12:07 pm

ESP32 UART control

Postby Autom8n » Wed Jul 24, 2019 1:39 pm

Please excuse my ignorance on the subject but is there any way outside of the application program to disable the UARTs? After the initial program is loaded into flash, I want to disable the ability to read/write via uart permanently. Is this possible?
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ESP_Sprite
Posts: 9764
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32 UART control

Postby ESP_Sprite » Thu Jul 25, 2019 3:21 am

No, not really. There is a bootstrap pin that suppresses boot rom UART output, but the rest of the suppression you'll have to do in your application.
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