pic16bit: Initial version of port to 16-bit PIC family.

Reference MCU is dsPIC33J256GP506 with 256k ROM and 8k RAM, on the dsPIC
DSC Starter Kit board.  The REPL works, GC works, pyb module has LED and
Switch objects.  It passes some tests from the test suite (most it can't
run because it doesn't have the Python features enabled).

1 files changed, 66 insertions, 0 deletions

diff --git a/pic16bit/Makefile b/pic16bit/Makefile
new file mode 100644
index 000000000..4fab7f61c
--- /dev/null
+++ b/pic16bit/Makefile
@@ -0,0 +1,66 @@
+include ../py/mkenv.mk
+
+# qstr definitions (must come before including py.mk)
+QSTR_DEFS = qstrdefsport.h
+
+# include py core make definitions
+include ../py/py.mk
+
+XC16 = /opt/microchip/xc16/v1.24
+CROSS_COMPILE = $(XC16)/bin/xc16-
+
+PARTFAMILY = dsPIC33F
+PART = 33FJ256GP506
+
+INC =  -I.
+INC += -I..
+INC += -I../lib/mp-readline
+INC += -I../stmhal
+INC += -I$(BUILD)
+INC += -I$(XC16)/include
+INC += -I$(XC16)/support/$(PARTFAMILY)/h
+
+CFLAGS_PIC16BIT = -mcpu=$(PART) -mlarge-code
+CFLAGS = $(INC) -Wall -Werror -ansi -std=gnu99 -nostdlib $(CFLAGS_PIC16BIT) $(COPT)
+
+#Debugging/Optimization
+ifeq ($(DEBUG), 1)
+CFLAGS += -O0 -ggdb
+else
+CFLAGS += -O1 -DNDEBUG
+endif
+
+LDFLAGS = --heap=0 -nostdlib -T $(XC16)/support/$(PARTFAMILY)/gld/p$(PART).gld -Map=$@.map --cref -p$(PART)
+LIBS = -L$(XC16)/lib -L$(XC16)/lib/$(PARTFAMILY) -lc -lm -lpic30 -lp$(PART)
+
+SRC_C = \
+	main.c \
+	board.c \
+	pic16bit_mphal.c \
+	modpyb.c \
+	modpybled.c \
+	modpybswitch.c \
+	stmhal/pybstdio.c \
+	stmhal/pyexec.c \
+	lib/mp-readline/readline.c \
+
+SRC_S = \
+#	gchelper.s \
+
+OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(SRC_S:.s=.o))
+
+all: $(BUILD)/firmware.hex
+
+$(BUILD)/firmware.hex: $(BUILD)/firmware.elf
+	$(ECHO) "Create $@"
+	$(Q)$(CROSS_COMPILE)bin2hex $<
+
+$(BUILD)/firmware.elf: $(OBJ)
+	$(ECHO) "LINK $@"
+	$(Q)$(LD) $(LDFLAGS) -o $@ $(OBJ) $(LIBS)
+	$(Q)size $@
+
+$(PY_BUILD)/gc.o: CFLAGS += -O1
+$(PY_BUILD)/vm.o: CFLAGS += -O1
+
+include ../py/mkrules.mk