what's mean about UART_PIN_NO_CHANGE?
is it to say PIN not use,connect to no phy pin?
UART_PIN_NO_CHANGE
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ESP_Sprite
- Posts: 9757
- Joined: Thu Nov 26, 2015 4:08 am
Re: UART_PIN_NO_CHANGE
Esssentially, it means that the UART code should not touch any of the settings for that signal. If the signal already is routed to a pin in some fashion (e.g. by having manually tweaked the GPIO mux beforehand), it will stay there; if the signal is unconnected it will stay unconnected. Unless you specifically have code that acts on the signal beforehand, you can interpret this as 'do not connect'.
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