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atmel-samd: Add modules directory with frozen bytecode support (like ESP8266 port), and NeoPixel python wrapper module. #10

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Merged
merged 1 commit into from
Oct 14, 2016
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atmel-samd: Add modules directory with frozen bytecode support (like ESP8266 port), and NeoPixel python wrapper module. #10

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24 changes: 20 additions & 4 deletions atmel-samd/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,15 @@ BOSSAC := tools/bossac_osx

HAL_DIR=hal/$(MCU_SERIES)

# Frozen bytecode configuration. Any .py files placed in the modules subdirectory
# will be frozen into .mpy files and embedded in the firmware (like the ESP8266
# port).
MPY_CROSS = ../mpy-cross/mpy-cross
MPY_TOOL = ../tools/mpy-tool.py
FROZEN_MPY_DIR = modules
FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR) -type f -name '*.py')
FROZEN_MPY_MPY_FILES := $(addprefix $(BUILD)/,$(FROZEN_MPY_PY_FILES:.py=.mpy))

INC += -I.
INC += -I..
INC += -I../lib/mp-readline
Expand Down Expand Up @@ -187,7 +196,7 @@ SRC_BINDINGS_EXPANDED = $(addprefix shared-bindings/, $(SRC_BINDINGS)) \
$(addprefix common-hal/, $(SRC_BINDINGS))

SRC_AUTOGEN = \
$(BUILD)/_frozen_mpy.c \
$(BUILD)/frozen_mpy.c \

OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_ASF:.c=.o))
Expand All @@ -199,9 +208,16 @@ SRC_QSTR += $(SRC_C) $(SRC_BINDINGS_EXPANDED) $(STM_SRC_C)

all: $(BUILD)/firmware.bin

$(BUILD)/_frozen_mpy.c: frozentest.mpy $(BUILD)/genhdr/qstrdefs.generated.h
$(ECHO) "MISC freezing bytecode"
$(Q)../tools/mpy-tool.py -f -q $(BUILD)/genhdr/qstrdefs.preprocessed.h -mlongint-impl=none $< > $@
# to build .mpy files from .py files
$(BUILD)/$(FROZEN_MPY_DIR)/%.mpy: $(FROZEN_MPY_DIR)/%.py
@$(ECHO) "MPY $<"
$(Q)$(MKDIR) -p $(dir $@)
$(Q)$(MPY_CROSS) -o $@ -s $(^:$(FROZEN_MPY_DIR)/%=%) $^

# to build frozen_mpy.c from all .mpy files
$(BUILD)/frozen_mpy.c: $(FROZEN_MPY_MPY_FILES) $(BUILD)/genhdr/qstrdefs.generated.h
@$(ECHO) "Creating $@"
$(Q)$(PYTHON) $(MPY_TOOL) -f -q $(BUILD)/genhdr/qstrdefs.preprocessed.h -mlongint-impl=none $(FROZEN_MPY_MPY_FILES) > $@

$(BUILD)/firmware.elf: $(OBJ)
$(ECHO) "LINK $@"
Expand Down
Binary file removed atmel-samd/frozentest.mpy
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0 atmel-samd/frozentest.py → atmel-samd/modules/frozentest.py
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31 changes: 31 additions & 0 deletions atmel-samd/modules/neopixel.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
# NeoPixel driver for MicroPython on ESP8266
# MIT license; Copyright (c) 2016 Damien P. George

from neopixel_write import neopixel_write

class NeoPixel:
def __init__(self, pin, n):
self.pin = pin
self.n = n
self.buf = bytearray(n * 3)
self.pin.init(pin.OUT)

def __setitem__(self, index, val):
r, g, b = val
self.buf[index * 3] = g
self.buf[index * 3 + 1] = r
self.buf[index * 3 + 2] = b

def __getitem__(self, index):
i = index * 3
return self.buf[i + 1], self.buf[i], self.buf[i + 2]

def fill(self, color):
r, g, b = color
for i in range(len(self.buf) / 3):
self.buf[i * 3] = g
self.buf[i * 3 + 1] = r
self.buf[i * 3 + 2] = b

def write(self):
neopixel_write(self.pin, self.buf, True)