Canned G-code: setup right in config.h.

This works with Arduino IDE as well and should be easier to figure
for inexperienced users.

Makefile-common

@@ -49,7 +49,7 @@ OBJDUMP = $(TOOLCHAIN)objdump
 OBJCOPY = $(TOOLCHAIN)objcopy
 
 
-OBJ = $(patsubst %.c,$(BUILDDIR)/%.o,$(SOURCES)) $(BUILDDIR)/canned_gcode.o
+OBJ = $(patsubst %.c,$(BUILDDIR)/%.o,$(SOURCES))
 
 .PHONY: all clean doc functionsbysize
 .PRECIOUS: %.o %.elf
@@ -57,7 +57,7 @@ OBJ = $(patsubst %.c,$(BUILDDIR)/%.o,$(SOURCES)) $(BUILDDIR)/canned_gcode.o
 all: $(BUILDDIR) $(TARGET)
 
 clean:
-	rm -rf $(BUILDDIR) $(TARGET) *~ canned_gcode.c
+	rm -rf $(BUILDDIR) $(TARGET) *~
 
 doc: Doxyfile *.c *.h
 	doxygen $<
@@ -107,11 +107,3 @@ $(BUILDDIR)/%.bin: $(BUILDDIR)/%.elf
 $(BUILDDIR)/%.sym: $(BUILDDIR)/%.elf
 	@echo "  SYM       $@"
 	@$(OBJDUMP) -t $< | perl -ne 'BEGIN { printf "  ADDR  NAME                  SIZE\n"; } /([0-9a-f]+)\s+(\w+)\s+O\s+\.(bss|data)\s+([0-9a-f]+)\s+(\w+)/ && printf "0x%04x  %-20s +%d\n", eval("0x$$1") & 0xFFFF, $$5, eval("0x$$4")' | sort -k1 > $@
-
-canned_gcode.c: canned_gcode.g
-	@echo "  GEN       $@"
-	@echo "#include \"canned_gcode.h\"" > $@
-	@echo "" >> $@
-	@echo -n "const char canned_gcode_P[] PROGMEM = \"" >> $@
-	@perl -pe 's/\n/\\n/gs' $< >> $@
-	@echo "\";" >> $@

canned_gcode.g

@@ -1,3 +0,0 @@
-G28
-G1 X100
-G1 X0

canned_gcode.h

@@ -1,3 +0,0 @@
-#include <avr/pgmspace.h>
-
-extern const char canned_gcode_P[] PROGMEM;

config.default.h

@@ -571,6 +571,22 @@ PWM value for 'off'
 */
 #define	ENDSTOP_STEPS	4
 
+/** \def CANNED_CYCLE
+
+  G-code commands in this string will be executed over and over again, without
+  user interaction or even a serial connection. It's purpose is e.g. for
+  exhibitions or when using Teacup for other purposes than printing. You can
+  add any G-code supported by Teacup.
+
+  Note: don't miss these newlines (\n) and backslashes (\).
+*/
+/*
+#define CANNED_CYCLE "G1 X100 F3000\n" \
+"G4 P500\n" \
+"G1 X0\n" \
+"G4 P500\n"
+*/
+
 
 
 /***************************************************************************\

mendel.c

@@ -58,6 +58,10 @@
   SIMINFO_SERIAL_OUT("D1", "-", BAUD);
 #endif
 
+#ifdef CANNED_CYCLE
+  const char PROGMEM canned_gcode_P[] = CANNED_CYCLE;
+#endif
+
 /// initialise all I/O - set pins as input or output, turn off unused subsystems, etc
 void io_init(void) {
 	// disable modules we don't use
@@ -254,11 +258,6 @@ int main (void)
 #endif
 	init();
 
-  #ifdef CANNED_CYCLE
-    #include "canned_gcode.h"
-    uint32_t canned_gcode_pos = 0;
-  #endif /* CANNED_CYCLE */
-
 	// main loop
 	for (;;)
 	{
@@ -287,6 +286,8 @@ int main (void)
           If ever print-from-SD card is implemented, these changes may become
           necessary.
         */
+        static uint32_t canned_gcode_pos = 0;
+
         gcode_parse_char(pgm_read_byte(&(canned_gcode_P[canned_gcode_pos])));
 
         canned_gcode_pos++;

testcases/config.h.Profiling

@@ -570,6 +570,21 @@ PWM value for 'off'
 */
 #define	ENDSTOP_STEPS	4
 
+/** \def CANNED_CYCLE
+
+  G-code commands in this string will be executed over and over again, without
+  user interaction or even a serial connection. It's purpose is e.g. for
+  exhibitions or when using Teacup for other purposes than printing. You can
+  add any G-code supported by Teacup.
+
+  Note: don't miss these newlines (\n) and backslashes (\).
+*/
+/*
+#define CANNED_CYCLE "G1 X100 F3000\n" \
+"G4 P500\n" \
+"G1 X0\n" \
+"G4 P500\n"
+*/
 
 
 /***************************************************************************\