Merge pull request #72 from dbstf/master

PR to fix #71 (XIAO SAMD21: Add TX/RX LED On/Off on Arduino IDE menu)

Author: Lesords

boards.txt

@@ -169,9 +169,12 @@ seeed_XIAO_m0.menu.sercom4.include=USART
 seeed_XIAO_m0.menu.sercom4.include.sercom4_flag=
 seeed_XIAO_m0.menu.sercom4.exclude=None
 seeed_XIAO_m0.menu.sercom4.exclude.sercom4_flag=-DNO_USART_INTERFACE
+seeed_XIAO_m0.menu.txrxled.on=On
+seeed_XIAO_m0.menu.txrxled.off=Off
+seeed_XIAO_m0.menu.txrxled.on.build.flags.txrxled=-DTXRXLED_ENABLE
 
 
-# Seeed XIAO M0 (SAMD21)
+# Seeed Wio Lite MG126 (SAMD21)
 # ------------------------------
 Wio_Lite_MG126.name=Seeeduino Wio lite MG126
 Wio_Lite_MG126.vid.0=0x2886

variants/XIAO_m0/variant.h

@@ -69,10 +69,12 @@
 #define LED_BUILTIN PIN_LED
 
 
-#define PIN_LED_RXL          (12u)
-#define PIN_LED_TXL          (11u)
-#define PIN_LED2             PIN_LED_RXL
-#define PIN_LED3             PIN_LED_TXL
+#define PIN_LED2             (12u)
+#define PIN_LED3             (11u)
+#if defined(TXRXLED_ENABLE)
+#define PIN_LED_RXL          PIN_LED2
+#define PIN_LED_TXL          PIN_LED3
+#endif
 
 /*
  * Analog pins