UART_PIN_NO_CHANGE
Posted: Mon Sep 25, 2017 12:15 pm
by aih5165
what's mean about UART_PIN_NO_CHANGE?
is it to say PIN not use,connect to no phy pin?
Re: UART_PIN_NO_CHANGE
Posted: Tue Sep 26, 2017 2:32 am
by ESP_Sprite
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'.