avr: started working on new SPI-like COM protocol.

use a clock and a data line to introduce synchronisation into the
protocol to be able to work with the wide range of mcu speeds (no need for
exact timing, no need for exact calibration).

avr/devices/all/main.asm

@@ -135,6 +135,19 @@ onSystemTimerTick:
   bigcall ComOnUart1_Periodically
 #endif
 
+#ifdef MODULES_COM2W
+  bigcall COM2W_Every100ms
+#endif
+
+
+#ifdef MODULES_COM2W0
+  bigcall COM2W0_Periodically
+#endif
+
+#ifdef MODULES_COM2W1
+  bigcall COM2W1_Periodically
+#endif
+
 #ifdef MODULES_TCRT1000
   bigcall TCRT1K_Every100ms
 #endif