try to fix submodule

firmware/lib/Arduino-FOC/src/communication/SimpleFOCDebug.h

@@ -0,0 +1,79 @@
+
+#ifndef __SIMPLEFOCDEBUG_H__
+#define __SIMPLEFOCDEBUG_H__
+
+#include "Arduino.h"
+
+
+/**
+ * SimpleFOCDebug class
+ * 
+ * This class is used to print debug messages to a chosen output.
+ * Currently, Print instances are supported as targets, e.g. serial port.
+ * 
+ * Activate debug output globally by calling enable(), optionally passing
+ * in a Print instance. If none is provided "Serial" is used by default.
+ * 
+ * To produce debug output, use the macro SIMPLEFOC_DEBUG:
+ *   SIMPLEFOC_DEBUG("Debug message!");
+ *   SIMPLEFOC_DEBUG("a float value:", 123.456f);
+ *   SIMPLEFOC_DEBUG("an integer value: ", 123);
+ * 
+ * Keep debugging output short and simple. Some of our MCUs have limited
+ * RAM and limited serial output capabilities.
+ * 
+ * By default, the SIMPLEFOC_DEBUG macro uses the flash string helper to
+ * help preserve memory on Arduino boards.
+ * 
+ * You can also disable debug output completely. In this case all debug output 
+ * and the SimpleFOCDebug class is removed from the compiled code.
+ * Add -DSIMPLEFOC_DISABLE_DEBUG to your compiler flags to disable debug in
+ * this way.
+ * 
+ **/
+
+
+#ifndef SIMPLEFOC_DISABLE_DEBUG
+
+class SimpleFOCDebug {
+public:
+    static void enable(Print* debugPrint = &Serial);
+
+    static void println(const __FlashStringHelper* msg);
+    static void println(const char* msg);
+    static void println(const __FlashStringHelper* msg, float val);
+    static void println(const char* msg, float val);
+    static void println(const __FlashStringHelper* msg, int val);
+    static void println(const char* msg, int val);
+    static void println();
+    static void println(int val);
+    static void println(float val);
+
+    static void print(const char* msg);
+    static void print(const __FlashStringHelper* msg);
+    static void print(int val);
+    static void print(float val);
+
+protected:
+    static Print* _debugPrint;
+};
+
+
+#define SIMPLEFOC_DEBUG(msg, ...) \
+    SimpleFOCDebug::println(F(msg), ##__VA_ARGS__)
+
+
+
+
+
+#else //ifndef SIMPLEFOC_DISABLE_DEBUG
+
+
+
+#define SIMPLEFOC_DEBUG(msg, ...)
+
+
+
+#endif //ifndef SIMPLEFOC_DISABLE_DEBUG
+#endif
+