New Variant - BlackPill F103C8 (#414)

Author: BennehBoy

boards.txt

@@ -543,6 +543,22 @@ GenF1.menu.pnum.BLUEPILL_F103C8B.build.board=BLUEPILL_F103C8
 GenF1.menu.pnum.BLUEPILL_F103C8B.build.product_line=STM32F103xB
 GenF1.menu.pnum.BLUEPILL_F103C8B.build.variant=BLUEPILL_F103C8
 
+# BLACKPILL_F103C8 board
+# Support: Serial2 (USART2 on PA3, PA2) and Serial3 (USART3 on PB11, PB10)
+GenF1.menu.pnum.BLACKPILL_F103C8=BlackPill F103C8
+GenF1.menu.pnum.BLACKPILL_F103C8.upload.maximum_size=65536
+GenF1.menu.pnum.BLACKPILL_F103C8.upload.maximum_data_size=20480
+GenF1.menu.pnum.BLACKPILL_F103C8.build.board=BLACKPILL_F103C8
+GenF1.menu.pnum.BLACKPILL_F103C8.build.product_line=STM32F103xB
+GenF1.menu.pnum.BLACKPILL_F103C8.build.variant=BLUEPILL_F103C8
+
+GenF1.menu.pnum.BLACKPILL_F103C8B=BlackPill F103C8 (128k)
+GenF1.menu.pnum.BLACKPILL_F103C8B.upload.maximum_size=131072
+GenF1.menu.pnum.BLACKPILL_F103C8B.upload.maximum_data_size=20480
+GenF1.menu.pnum.BLACKPILL_F103C8B.build.board=BLACKPILL_F103C8
+GenF1.menu.pnum.BLACKPILL_F103C8B.build.product_line=STM32F103xB
+GenF1.menu.pnum.BLACKPILL_F103C8B.build.variant=BLUEPILL_F103C8
+
 # MAPLEMINI_F103CB board
 # Support: Serial2 (USART2 on PA3, PA2) and Serial3 (USART3 on PB11, PB10)
 GenF1.menu.pnum.MAPLEMINI_F103CB=Maple Mini F103CB

variants/BLUEPILL_F103C8/variant.cpp

@@ -53,9 +53,9 @@ const PinName digitalPin[] = {
   PB_15, //D13
   PB_14, //D14
   PB_13, //D15
-  PB_12, //D16
+  PB_12, //D16 - LED Blackpill
 /* Right side */
-  PC_13, //D17 - LED
+  PC_13, //D17 - LED Bluepill
   PC_14, //D18
   PC_15, //D19
   PA_0,  //D20/A0

variants/BLUEPILL_F103C8/variant.h

@@ -44,7 +44,7 @@ extern "C"{
  *----------------------------------------------------------------------------*/
 extern const PinName digitalPin[];
 
-// USB connector on the top, MCU side
+// Bluepill USB connector on the top, MCU side - Blackpill USB connector on bottom, MCU Side  (pins are reversed vertically for Arduino Ananlog pin correct sequence.
 // Left Side
 #define PB9  0
 #define PB8  1
@@ -62,9 +62,9 @@ extern const PinName digitalPin[];
 #define PB15 13
 #define PB14 14
 #define PB13 15
-#define PB12 16
+#define PB12 16 // LED Blackpill
 // Right side
-#define PC13 17 // LED
+#define PC13 17 // LED Bluepill
 #define PC14 18
 #define PC15 19
 #define PA0  20 // A0
@@ -91,7 +91,11 @@ extern const PinName digitalPin[];
 #define NUM_ANALOG_FIRST        20
 
 // On-board LED pin number
+#ifdef ARDUINO_BLUEPILL_F103C8
 #define LED_BUILTIN             PC13
+#else
+#define LED_BUILTIN             PB12
+#endif
 #define LED_GREEN               LED_BUILTIN
 
 // SPI Definitions