docs: fix uart number naming error
UART
====
-{IDF_TARGET_UART_NUM:default = "UART1", esp32 = "UART2", esp32s2 = "UART1"}
+{IDF_TARGET_UART_NUM:default = "UART_NUM_1", esp32 = "UART_NUM_2", esp32s2 = "UART_NUM_1"}
Overview
--------
@@ -99,18 +99,18 @@ After setting communication parameters, configure the physical GPIO pins to whic
The same macro should be specified for pins that will not be used.
-.. code-block:: c
+
.. only:: esp32
- ::
+ .. code-block:: c
// Set UART pins(TX: IO16 (UART2 default), RX: IO17 (UART2 default), RTS: IO18, CTS: IO19)
ESP_ERROR_CHECK(uart_set_pin(UART_NUM_2, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, 18, 19));
.. only:: esp32s2
- ::
+ .. code-block:: c
// Set UART pins(TX: IO17 (UART1 default), RX: IO18 (UART1 default), RTS: IO19, CTS: IO20)
ESP_ERROR_CHECK(uart_set_pin(UART_NUM_1, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, 19, 20));
@@ -189,7 +189,7 @@ There is a 'companion' function :cpp:func:`uart_wait_tx_done` that monitors the
.. code-block:: c
// Wait for packet to be sent
- const int uart_num = UART_NUM_2;
+ const int uart_num = {IDF_TARGET_UART_NUM};
ESP_ERROR_CHECK(uart_wait_tx_done(uart_num, 100)); // wait timeout is 100 RTOS ticks (TickType_t)
