ARM: get dda_lookahead.c in.

Not much to say, simply works.

Makefile-ARM

@@ -99,7 +99,11 @@ TARGET = $(PROGRAM).hex
 # in #ifdef __AVR__. To avoid this, build only a selection for now:
 SOURCES  = mendel.c cpu.c serial.c sermsg.c sersendf.c delay.c
 SOURCES += gcode_parse.c gcode_process.c pinio.c timer.c clock.c
-SOURCES += dda_queue.c dda_maths.c dda_kinematics.c dda.c
+SOURCES += dda_queue.c dda_maths.c dda_kinematics.c dda.c dda_lookahead.c
+# Sources left:
+# analog.c home.c crc.c intercom.c debug.c spi.c usb_serial.c
+# graycode.c pff.c temp.c watchdog.c heater.c pff_diskio.c
+
 ifeq ($(MCU), lpc1114)
   SOURCES += cmsis-system_lpc11xx.c
 endif

config/board.gen7-arm.h

@@ -96,7 +96,7 @@
   a LED in hardware), see
   http://reprap.org/wiki/Teacup_Firmware#Doing_precision_profiling
 */
-//#define DEBUG_LED_PIN            xxxx
+#define DEBUG_LED_PIN            PIO1_9
 
 /** \def SD_CARD_SELECT_PIN
 

config_wrapper.h

@@ -42,7 +42,3 @@
            Lookahead disabled.
   #undef LOOKAHEAD
 #endif
-
-#ifdef __ARMEL_NOTYET__
-  #undef LOOKAHEAD
-#endif