Support a third serial port (#21784)

2021-05-07 17:31:45 +12:00
parent 4518506559
commit 9fa9eebe51
20 changed files with 212 additions and 47 deletions
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -111,6 +111,13 @@
 */
 //#define SERIAL_PORT_2 -1

+/**
+ * Select a third serial port on the board to use for communication with the host.
+ * Currently only supported for AVR, DUE, LPC1768/9 and STM32/STM32F1
+ * :[-1, 0, 1, 2, 3, 4, 5, 6, 7]
+ */
+//#define SERIAL_PORT_3 1
+
 /**
 * This setting determines the communication speed of the printer.
 *