Add firmware for the key cluster module based on the firmware of the left keyboard half.

keycluster/src/key_scanner.h

@@ -0,0 +1,22 @@
+#ifndef __KEY_SCANNER_H__
+#define __KEY_SCANNER_H__
+
+// Includes:
+
+    #include "main.h"
+
+// Macros:
+
+    #define LPTMR_SOURCE_CLOCK CLOCK_GetFreq(kCLOCK_LpoClk)
+
+    #define KEY_SCANNER_LPTMR_BASEADDR LPTMR0
+    #define KEY_SCANNER_LPTMR_IRQ_ID   LPTMR0_IRQn
+    #define KEY_SCANNER_HANDLER        LPTMR0_IRQHandler
+
+    #define KEY_SCANNER_INTERVAL_USEC (1000 / KEYBOARD_MATRIX_ROWS_NUM)
+
+// Functions:
+
+    void InitKeyScanner(void);
+
+#endif