diff --git a/STM32F1XX/cores/maple/original_hardwarespi.zip b/STM32F1XX/cores/maple/original_hardwarespi.zip
deleted file mode 100644
index 7ed8c83..0000000
Binary files a/STM32F1XX/cores/maple/original_hardwarespi.zip and /dev/null differ
diff --git a/STM32F1XX/cores/maple/wiring_private.h b/STM32F1XX/cores/maple/wiring_private.h
new file mode 100644
index 0000000..88fd009
--- /dev/null
+++ b/STM32F1XX/cores/maple/wiring_private.h
@@ -0,0 +1,4 @@
+#ifndef WiringPrivate_h
+#define WiringPrivate_h
+
+#endif
\ No newline at end of file
diff --git a/STM32F1XX/variants/maple_mini/pins_arduino.h b/STM32F1XX/variants/maple_mini/pins_arduino.h
new file mode 100644
index 0000000..3052f2e
--- /dev/null
+++ b/STM32F1XX/variants/maple_mini/pins_arduino.h
@@ -0,0 +1,6 @@
+
+
+
+
+// API compatibility
+#include "variant.h"
\ No newline at end of file
diff --git a/STM32F1XX/variants/maple_mini/variant.h b/STM32F1XX/variants/maple_mini/variant.h
new file mode 100644
index 0000000..0e31357
--- /dev/null
+++ b/STM32F1XX/variants/maple_mini/variant.h
@@ -0,0 +1,10 @@
+#ifndef _VARIANT_ARDUINO_STM32_
+#define _VARIANT_ARDUINO_STM32_
+
+// From SAM implementation #define digitalPinToBitMask(P)     ( g_APinDescription[P].ulPin )
+// Added placeholder to please the compiler
+
+#warning "TO DO. IMPLEMENT digitalPinToBitMask in variant.h"
+#define digitalPinToBitMask(P)     ( 1 )
+
+#endif /* _VARIANT_ARDUINO_STM32_ */
\ No newline at end of file