Compiled and linked SAMD21x18 version successfully.
This commit is contained in:
Scott Shawcroft
parent
f2a21a2489
commit
a5f6cb3c57
93
atmel-samd/Makefile
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93
atmel-samd/Makefile
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include ../py/mkenv.mk
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CROSS = 0
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# qstr definitions (must come before including py.mk)
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QSTR_DEFS = qstrdefsport.h
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# include py core make definitions
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include ../py/py.mk
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ifeq ($(CROSS), 1)
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CROSS_COMPILE = arm-none-eabi-
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endif
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BOSSAC := /Users/tannewt/ArduinoCore-samd/tools/bossac_osx
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INC += -I.
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INC += -I..
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INC += -I../lib/mp-readline
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INC += -I$(BUILD)
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ifeq ($(CROSS), 1)
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CFLAGS_CORTEX_M0 = -mthumb -mabi=aapcs-linux -mcpu=cortex-m0plus -fsingle-precision-constant -Wdouble-promotion -D__SAMD21G18A__
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CFLAGS = $(INC) -Wall -Werror -ansi -std=gnu99 -nostdlib $(CFLAGS_CORTEX_M0) $(COPT)
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else
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CFLAGS = -m32 $(INC) -Wall -Werror -ansi -std=gnu99 $(COPT)
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endif
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#Debugging/Optimization
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ifeq ($(DEBUG), 1)
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CFLAGS += -O0 -ggdb
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else
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CFLAGS += -Os -DNDEBUG
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endif
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LIBS =
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ifeq ($(CROSS), 1)
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LIBGCC_FILE_NAME = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
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LDFLAGS = -Lasf/thirdparty/CMSIS/Lib/GCC/ -L $(dir $(LIBGCC_FILE_NAME)) -nostdlib -T samd21.ld -Map=$@.map --cref
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LIBS += -larm_cortexM0l_math -lgcc
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else
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LD = gcc
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LDFLAGS = -m32 -Wl,-Map=$@.map,--cref
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endif
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SRC_C = \
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main.c \
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uart_core.c \
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lib/utils/stdout_helpers.c \
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lib/utils/printf.c \
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lib/utils/pyexec.c \
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lib/libc/string0.c \
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lib/mp-readline/readline.c \
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$(BUILD)/_frozen_mpy.c \
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OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
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ifeq ($(CROSS), 1)
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all: $(BUILD)/firmware.bin
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else
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all: $(BUILD)/firmware.elf
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endif
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$(BUILD)/_frozen_mpy.c: frozentest.mpy $(BUILD)/genhdr/qstrdefs.generated.h
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$(ECHO) "MISC freezing bytecode"
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$(Q)../tools/mpy-tool.py -f -q $(BUILD)/genhdr/qstrdefs.preprocessed.h -mlongint-impl=none $< > $@
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$(BUILD)/firmware.elf: $(OBJ)
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$(ECHO) "LINK $@"
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$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)
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$(Q)$(SIZE) $@
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$(BUILD)/firmware.bin: $(BUILD)/firmware.elf
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$(ECHO) "Create $@"
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$(Q)$(OBJCOPY) -O binary -j .isr_vector -j .text -j .data $^ $@
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deploy: $(BUILD)/firmware.bin
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$(ECHO) "Writing $< to the board"
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$(BOSSAC) -u $<
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# Run emulation build on a POSIX system with suitable terminal settings
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run:
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stty raw opost -echo
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build/firmware.elf
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@echo Resetting terminal...
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# This sleep is useful to spot segfaults
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sleep 1
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reset
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test: $(BUILD)/firmware.elf
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$(Q)/bin/echo -e "print('hello world!', list(x+1 for x in range(10)), end='eol\\\\n')\\r\\n\\x04" | $(BUILD)/firmware.elf | tail -n2 | grep "^hello world! \\[1, 2, 3, 4, 5, 6, 7, 8, 9, 10\\]eol"
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include ../py/mkrules.mk
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17
atmel-samd/README.md
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atmel-samd/README.md
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# SAMD21x18
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This port is intended to be a full featured MicroPython port for SAMD21x18 based
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development boards including the Arduino Zero, Adafruit Feather M0 and Adafruit
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M0 BLE.
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## Building for a SAMD21x18 MCU
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The Makefile has the ability to build for a SAMD21x18, and by default
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includes some start-up code and also enables a UART for communication. To build:
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$ make CROSS=1
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If you previously built the Linux version, you will need to first run
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`make clean` to get rid of incompatible object files.
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Deploying coming soon!
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BIN
atmel-samd/asf/asf-releasenotes-3.32.0.pdf
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BIN
atmel-samd/asf/asf-releasenotes-3.32.0.pdf
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Binary file not shown.
125
atmel-samd/asf/readme.txt
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atmel-samd/asf/readme.txt
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1 - Introduction
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----------------
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The Atmel® Software Framework (ASF) is a collection of embedded software for Atmel flash MCU (www.atmel.com/asf).
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» It simplifies the usage of microcontrollers, providing an abstraction to the hardware and high-value middlewares
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» ASF is designed to be used for evaluation, prototyping, design and production phases
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» ASF is integrated in the Atmel Studio IDE with a graphical user interface or available as standalone for GCC, IAR compilers
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» ASF can be downloaded for free
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ASF online documentation can be found here: http://asf.atmel.com
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Supported devices:
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» AVR UC3(Trade Mark) (http://www.atmel.com/products/microcontrollers/avr/32-bitavruc3.aspx)
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» AVR XMEGA(Trade Mark) (http://www.atmel.com/products/microcontrollers/avr/avr_xmega.aspx)
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» megaAVR(Trade Mark) (http://www.atmel.com/products/microcontrollers/avr/megaavr.aspx)
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» SAM (http://www.atmel.com/products/microcontrollers/arm/default.aspx)
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Each software module is provided with full source code, example of usage and
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ready-to-use projects for the IAR EW and GNU GCC compilers.
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This package is dedicated for IAR and GCC makefile users. AVR Studio 5 or Atmel Studio 6 users do not
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need this package as the ASF is integrated in Atmel Studio.
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The top folder organization is as follow:
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- the avr32/ folder contains software modules(source code and projects) dedicated to AVR UC3 devices,
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- the mega/ folder contains software modules(source code and projects) dedicated to megaAVR devices,
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- the xmega/ folder contains software modules(source code and projects) dedicated to AVR XMEGA devices,
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- the sam/ folder contains software modules(source code and projects) dedicated to SAM devices,
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- the common/ folder contains software modules(source code and projects) shared by all AVR and SAM devices,
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- the thirdparty/ folder contains software modules(source code and projects) from thirdparty providers for all Atmel devices.
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The thirdparty/ folder is organized by thirdparty software module (i.e. one folder per thirdparty software module).
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The avr32/, xmega/, mega/, sam/ and common/ folders are organized as follow:
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- the drivers/ folder contains low-level software drivers for MCU on-chip resources (eg cpu, usart, adc drivers).
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- the boards/ folder contains board-specific source code files.
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- the utils/ folder contains files that are used by all other modules: it holds
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several linker script files, IAR & GCC pre-compiled libraries of some ASF modules,
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and C/C++ utility files with general usage defines, macros and functions.
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- the services/ folder contains application-oriented pieces of software that are
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not specific to boards nor chips (eg. FAT, TCP/IP stack, os, JPEG decoder).
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For the common/ top folder, the services/ folder also contains chip-specific code.
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- the components/ folder offers, for each supported hardware component, a software
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interface to interact with the component (eg memories like SDRAM, SD card, or display)
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- the applications/ contains hefty examples of applications using services and drivers.
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2 - Documentation
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--------------------------
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ASF release notes, reference manual and getting started documents can be found on http://www.atmel.com/asf.
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The ASF documentation can be found online on http://asf.atmel.com.
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3 - Toolchain Header Files Update
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---------------------------------
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For 8-bit AVR users it is recommended to update the toolchain header files, a
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description about how to do that is located in the readme.txt file under the
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xmega/utils/header_files/ directory.
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For AVR UC3 users using IAR, it is recommended to update the IAR header files.
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To do that, unzip the avr32-headers.zip file (located under
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the avr32/utils/header_files/ directory) to the IAR EWAVR32 installation folder
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under "IAR installation folder"/Embedded Workbench x.y/avr32/inc/.
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4 - IAR EW Users
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----------------
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Using an example of usage of the AVR UC3 GPIO driver module as an example, the
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IAR projects are located under:
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- avr32/drivers/gpio/peripheral_bus_example/at32uc3a0512_evk1000/iar/ for an EVK1100 board,
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- avr32/drivers/gpio/peripheral_bus_example/at32uc3a0512_evk1105/iar/ for an EVK1105 board,
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- avr32/drivers/gpio/peripheral_bus_example/at32uc3b0256_evk1101/iar/ for an EVK1101 board,
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- avr32/drivers/gpio/peripheral_bus_example/at32uc3a3256_evk1104/iar/ for an EVK1104 board,
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- avr32/drivers/gpio/peripheral_bus_example/at32uc3l064_stk600-rcuc3l0/iar/ for an STK600-RCUC3L0 setup,
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- avr32/drivers/gpio/peripheral_bus_example/at32uc3c0512c_uc3c_ek/iar/ for an AT32UC3C-EK board,
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- avr32/drivers/gpio/peripheral_bus_example/at32uc3l064_uc3l_ek/iar/ for an AT32UC3L-EK board.
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Each iar folder contains a full IAR project with:
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|
- an IAR EWAVR32 workspace file(avr32_drivers_gpio_peripheral_bus_example_uc3l_ek.eww: double-click on this file to open the whole project),
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|
- an IAR EWAVR32 project file(avr32_drivers_gpio_peripheral_bus_example_uc3l_ek.ewp),
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||||||
|
- an IAR EWAVR32 debug configuration file(avr32_drivers_gpio_peripheral_bus_example_uc3l_ek.ewd).
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5 - AVR32 Studio Users
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|
----------------------
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It is possible to work with an unzipped ASF package from within AVR32 Studio: this
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is described in the application note "AVR32769: How to Compile the standalone AVR
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UC3 Software Framework in AVR32 Studio V2": http://www.atmel.com/dyn/resources/prod_documents/doc32115.pdf
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6 - Offline documentation - Generating The HTML Documentation
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|
-------------------------------------
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All modules are fully documented using doxygen tags. Each project within the ASF
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|
contains a doxyfile.doxygen (used to configure doxygen for a proper documentation
|
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|
generation): to generate the html documentation, doxygen must be installed (see
|
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|
http://www.doxygen.org/download.html) and the doxyfile.doxygen must be used as
|
||||||
|
the input configuration file for doxygen.
|
||||||
|
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||||||
|
Using an example of usage of the AVR UC3 GPIO driver module as an example, for
|
||||||
|
an AT32UC3C-EK board, the associated doxyfile.doxygen file is under the
|
||||||
|
avr32/drivers/gpio/peripheral_bus_example/at32uc3c0512c_uc3c_ek/doxygen/ folder.
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||||||
|
Run doxygen and use this doxyfile.doxygen as configuration file for doxygen.
|
||||||
|
Using the command line, this is done with the following command: doxygen doxyfile.doxygen
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||||||
|
|
||||||
|
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||||||
|
7 - Contact Information
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||||||
|
-----------------------
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||||||
|
|
||||||
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For more info about Atmel MCU visit http://www.atmel.com/products/microcontrollers/default.aspx or contact support through the http://support.atmel.no/ site.
|
||||||
|
The support site also have a Frequently Asked Questions page with the most common questions.
|
||||||
|
|
||||||
|
ASF bugs or enhancement requests can be reported in the ASF Bug Tracker (http://asf.atmel.com/bugzilla/).
|
||||||
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||||||
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8 - Community Information
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|
-------------------------
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Users can find an ASF forum (http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewforum&f=21) on AVRfreaks for AVR users or on http://www.at91.com/ for SAM users.
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||||||
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This forum can be used to have an open discussion about usage, development, bugs, fixes, improvements, etc.
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BIN
atmel-samd/frozentest.mpy
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BIN
atmel-samd/frozentest.mpy
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7
atmel-samd/frozentest.py
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7
atmel-samd/frozentest.py
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print('uPy')
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print('a long string that is not interned')
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print('a string that has unicode αβγ chars')
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print(b'bytes 1234\x01')
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print(123456789)
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|
for i in range(4):
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print(i)
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167
atmel-samd/main.c
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167
atmel-samd/main.c
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include "py/nlr.h"
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#include "py/compile.h"
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#include "py/runtime.h"
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#include "py/repl.h"
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#include "py/gc.h"
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#include "lib/utils/pyexec.h"
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|
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||||||
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void do_str(const char *src, mp_parse_input_kind_t input_kind) {
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||||||
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mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
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||||||
|
if (lex == NULL) {
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|
printf("MemoryError: lexer could not allocate memory\n");
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|
return;
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||||||
|
}
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||||||
|
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||||||
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nlr_buf_t nlr;
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|
if (nlr_push(&nlr) == 0) {
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|
qstr source_name = lex->source_name;
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||||||
|
mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
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||||||
|
mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, true);
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||||||
|
mp_call_function_0(module_fun);
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||||||
|
nlr_pop();
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||||||
|
} else {
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||||||
|
// uncaught exception
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||||||
|
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
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||||||
|
}
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||||||
|
}
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||||||
|
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||||||
|
static char *stack_top;
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|
static char heap[2048];
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||||||
|
|
||||||
|
int main(int argc, char **argv) {
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||||||
|
int stack_dummy;
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||||||
|
stack_top = (char*)&stack_dummy;
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||||||
|
|
||||||
|
#if MICROPY_ENABLE_GC
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||||||
|
gc_init(heap, heap + sizeof(heap));
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||||||
|
#endif
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||||||
|
mp_init();
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||||||
|
#if MICROPY_REPL_EVENT_DRIVEN
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||||||
|
pyexec_event_repl_init();
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||||||
|
for (;;) {
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||||||
|
int c = mp_hal_stdin_rx_chr();
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|
if (pyexec_event_repl_process_char(c)) {
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||||||
|
break;
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||||||
|
}
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||||||
|
}
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||||||
|
#else
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|
pyexec_friendly_repl();
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||||||
|
#endif
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|
//do_str("print('hello world!', list(x+1 for x in range(10)), end='eol\\n')", MP_PARSE_SINGLE_INPUT);
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|
//do_str("for i in range(10):\r\n print(i)", MP_PARSE_FILE_INPUT);
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||||||
|
mp_deinit();
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||||||
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return 0;
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||||||
|
}
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||||||
|
|
||||||
|
void gc_collect(void) {
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||||||
|
// WARNING: This gc_collect implementation doesn't try to get root
|
||||||
|
// pointers from CPU registers, and thus may function incorrectly.
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||||||
|
void *dummy;
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gc_collect_start();
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||||||
|
gc_collect_root(&dummy, ((mp_uint_t)stack_top - (mp_uint_t)&dummy) / sizeof(mp_uint_t));
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||||||
|
gc_collect_end();
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||||||
|
gc_dump_info();
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||||||
|
}
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||||||
|
|
||||||
|
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
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||||||
|
return NULL;
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||||||
|
}
|
||||||
|
|
||||||
|
mp_import_stat_t mp_import_stat(const char *path) {
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||||||
|
return MP_IMPORT_STAT_NO_EXIST;
|
||||||
|
}
|
||||||
|
|
||||||
|
mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args, mp_map_t *kwargs) {
|
||||||
|
return mp_const_none;
|
||||||
|
}
|
||||||
|
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
|
||||||
|
|
||||||
|
void nlr_jump_fail(void *val) {
|
||||||
|
}
|
||||||
|
|
||||||
|
void NORETURN __fatal_error(const char *msg) {
|
||||||
|
while (1);
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifndef NDEBUG
|
||||||
|
void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
|
||||||
|
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
|
||||||
|
__fatal_error("Assertion failed");
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if MICROPY_MIN_USE_CORTEX_CPU
|
||||||
|
|
||||||
|
// this is a minimal IRQ and reset framework for any Cortex-M CPU
|
||||||
|
|
||||||
|
extern uint32_t _estack, _sidata, _sdata, _edata, _sbss, _ebss;
|
||||||
|
|
||||||
|
void Reset_Handler(void) __attribute__((naked));
|
||||||
|
void Reset_Handler(void) {
|
||||||
|
// stack pointer set by bootloader
|
||||||
|
// copy .data section from flash to RAM
|
||||||
|
for (uint32_t *src = &_sidata, *dest = &_sdata; dest < &_edata;) {
|
||||||
|
*dest++ = *src++;
|
||||||
|
}
|
||||||
|
// zero out .bss section
|
||||||
|
for (uint32_t *dest = &_sbss; dest < &_ebss;) {
|
||||||
|
*dest++ = 0;
|
||||||
|
}
|
||||||
|
// jump to board initialisation
|
||||||
|
void _start(void);
|
||||||
|
_start();
|
||||||
|
}
|
||||||
|
|
||||||
|
void Default_Handler(void) {
|
||||||
|
for (;;) {
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
uint32_t isr_vector[] __attribute__((section(".isr_vector"))) = {
|
||||||
|
(uint32_t)&_estack,
|
||||||
|
(uint32_t)&Reset_Handler,
|
||||||
|
(uint32_t)&Default_Handler, // NMI_Handler
|
||||||
|
(uint32_t)&Default_Handler, // HardFault_Handler
|
||||||
|
(uint32_t)&Default_Handler, // MemManage_Handler
|
||||||
|
(uint32_t)&Default_Handler, // BusFault_Handler
|
||||||
|
(uint32_t)&Default_Handler, // UsageFault_Handler
|
||||||
|
0,
|
||||||
|
0,
|
||||||
|
0,
|
||||||
|
0,
|
||||||
|
(uint32_t)&Default_Handler, // SVC_Handler
|
||||||
|
(uint32_t)&Default_Handler, // DebugMon_Handler
|
||||||
|
0,
|
||||||
|
(uint32_t)&Default_Handler, // PendSV_Handler
|
||||||
|
(uint32_t)&Default_Handler, // SysTick_Handler
|
||||||
|
};
|
||||||
|
|
||||||
|
void _start(void) {
|
||||||
|
// when we get here: stack is initialised, bss is clear, data is copied
|
||||||
|
|
||||||
|
// initialise the cpu and peripherals
|
||||||
|
#if MICROPY_MIN_USE_SAMD21_MCU
|
||||||
|
void samd21_init(void);
|
||||||
|
samd21_init();
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// now that we have a basic system up and running we can call main
|
||||||
|
main(0, NULL);
|
||||||
|
|
||||||
|
// we must not return
|
||||||
|
for (;;) {
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if MICROPY_MIN_USE_SAMD21_MCU
|
||||||
|
|
||||||
|
void samd21_init(void) {
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
95
atmel-samd/mpconfigport.h
Normal file
95
atmel-samd/mpconfigport.h
Normal file
@ -0,0 +1,95 @@
|
|||||||
|
#include <stdint.h>
|
||||||
|
|
||||||
|
// options to control how Micro Python is built
|
||||||
|
|
||||||
|
#define MICROPY_QSTR_BYTES_IN_HASH (1)
|
||||||
|
#define MICROPY_QSTR_EXTRA_POOL mp_qstr_frozen_const_pool
|
||||||
|
#define MICROPY_ALLOC_PATH_MAX (256)
|
||||||
|
#define MICROPY_ALLOC_PARSE_CHUNK_INIT (16)
|
||||||
|
#define MICROPY_EMIT_X64 (0)
|
||||||
|
#define MICROPY_EMIT_THUMB (0)
|
||||||
|
#define MICROPY_EMIT_INLINE_THUMB (0)
|
||||||
|
#define MICROPY_COMP_MODULE_CONST (0)
|
||||||
|
#define MICROPY_COMP_CONST (0)
|
||||||
|
#define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (0)
|
||||||
|
#define MICROPY_COMP_TRIPLE_TUPLE_ASSIGN (0)
|
||||||
|
#define MICROPY_MEM_STATS (0)
|
||||||
|
#define MICROPY_DEBUG_PRINTERS (0)
|
||||||
|
#define MICROPY_ENABLE_GC (1)
|
||||||
|
#define MICROPY_GC_ALLOC_THRESHOLD (0)
|
||||||
|
#define MICROPY_REPL_EVENT_DRIVEN (0)
|
||||||
|
#define MICROPY_HELPER_REPL (1)
|
||||||
|
#define MICROPY_HELPER_LEXER_UNIX (0)
|
||||||
|
#define MICROPY_ENABLE_SOURCE_LINE (0)
|
||||||
|
#define MICROPY_ENABLE_DOC_STRING (0)
|
||||||
|
#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_TERSE)
|
||||||
|
#define MICROPY_BUILTIN_METHOD_CHECK_SELF_ARG (0)
|
||||||
|
#define MICROPY_PY_ASYNC_AWAIT (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_BYTEARRAY (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_MEMORYVIEW (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_ENUMERATE (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_FILTER (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_FROZENSET (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_REVERSED (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_SET (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_SLICE (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_PROPERTY (0)
|
||||||
|
#define MICROPY_PY_BUILTINS_MIN_MAX (0)
|
||||||
|
#define MICROPY_PY___FILE__ (0)
|
||||||
|
#define MICROPY_PY_GC (0)
|
||||||
|
#define MICROPY_PY_ARRAY (0)
|
||||||
|
#define MICROPY_PY_ATTRTUPLE (0)
|
||||||
|
#define MICROPY_PY_COLLECTIONS (0)
|
||||||
|
#define MICROPY_PY_MATH (0)
|
||||||
|
#define MICROPY_PY_CMATH (0)
|
||||||
|
#define MICROPY_PY_IO (0)
|
||||||
|
#define MICROPY_PY_STRUCT (0)
|
||||||
|
#define MICROPY_PY_SYS (0)
|
||||||
|
#define MICROPY_MODULE_FROZEN_MPY (1)
|
||||||
|
#define MICROPY_CPYTHON_COMPAT (0)
|
||||||
|
#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_NONE)
|
||||||
|
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_NONE)
|
||||||
|
|
||||||
|
// type definitions for the specific machine
|
||||||
|
|
||||||
|
#define BYTES_PER_WORD (4)
|
||||||
|
|
||||||
|
#define MICROPY_MAKE_POINTER_CALLABLE(p) ((void*)((mp_uint_t)(p) | 1))
|
||||||
|
|
||||||
|
// This port is intended to be 32-bit, but unfortunately, int32_t for
|
||||||
|
// different targets may be defined in different ways - either as int
|
||||||
|
// or as long. This requires different printf formatting specifiers
|
||||||
|
// to print such value. So, we avoid int32_t and use int directly.
|
||||||
|
#define UINT_FMT "%u"
|
||||||
|
#define INT_FMT "%d"
|
||||||
|
typedef int mp_int_t; // must be pointer size
|
||||||
|
typedef unsigned mp_uint_t; // must be pointer size
|
||||||
|
|
||||||
|
typedef long mp_off_t;
|
||||||
|
|
||||||
|
#define MP_PLAT_PRINT_STRN(str, len) mp_hal_stdout_tx_strn_cooked(str, len)
|
||||||
|
|
||||||
|
// extra built in names to add to the global namespace
|
||||||
|
extern const struct _mp_obj_fun_builtin_t mp_builtin_open_obj;
|
||||||
|
#define MICROPY_PORT_BUILTINS \
|
||||||
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_open), (mp_obj_t)&mp_builtin_open_obj },
|
||||||
|
|
||||||
|
// We need to provide a declaration/definition of alloca()
|
||||||
|
#include <alloca.h>
|
||||||
|
|
||||||
|
#define MICROPY_HW_BOARD_NAME "atmel-samd"
|
||||||
|
#define MICROPY_HW_MCU_NAME "samd21"
|
||||||
|
|
||||||
|
#ifdef __linux__
|
||||||
|
#define MICROPY_MIN_USE_STDOUT (1)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef __thumb__
|
||||||
|
#define MICROPY_MIN_USE_CORTEX_CPU (1)
|
||||||
|
#define MICROPY_MIN_USE_STM32_MCU (1)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define MP_STATE_PORT MP_STATE_VM
|
||||||
|
|
||||||
|
#define MICROPY_PORT_ROOT_POINTERS \
|
||||||
|
const char *readline_hist[8];
|
||||||
2
atmel-samd/mphalport.h
Normal file
2
atmel-samd/mphalport.h
Normal file
@ -0,0 +1,2 @@
|
|||||||
|
static inline mp_uint_t mp_hal_ticks_ms(void) { return 0; }
|
||||||
|
static inline void mp_hal_set_interrupt_char(char c) {}
|
||||||
1
atmel-samd/qstrdefsport.h
Normal file
1
atmel-samd/qstrdefsport.h
Normal file
@ -0,0 +1 @@
|
|||||||
|
// qstrs specific to this port
|
||||||
62
atmel-samd/samd21.ld
Normal file
62
atmel-samd/samd21.ld
Normal file
@ -0,0 +1,62 @@
|
|||||||
|
/*
|
||||||
|
GNU linker script for SAMD21
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Specify the memory areas */
|
||||||
|
MEMORY
|
||||||
|
{
|
||||||
|
FLASH (rx) : ORIGIN = 0x00000000+0x2000, LENGTH = 0x00040000-0x2000 /* First 8KB used by bootloader */
|
||||||
|
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 0x008000 /* 32 KiB */
|
||||||
|
}
|
||||||
|
|
||||||
|
/* top end of the stack */
|
||||||
|
_estack = ORIGIN(RAM) + LENGTH(RAM);
|
||||||
|
|
||||||
|
/* define output sections */
|
||||||
|
SECTIONS
|
||||||
|
{
|
||||||
|
/* The program code and other data goes into FLASH */
|
||||||
|
.text :
|
||||||
|
{
|
||||||
|
. = ALIGN(4);
|
||||||
|
KEEP(*(.isr_vector)) /* isr vector table */
|
||||||
|
*(.text) /* .text sections (code) */
|
||||||
|
*(.text*) /* .text* sections (code) */
|
||||||
|
*(.rodata) /* .rodata sections (constants, strings, etc.) */
|
||||||
|
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
|
||||||
|
|
||||||
|
. = ALIGN(4);
|
||||||
|
_etext = .; /* define a global symbol at end of code */
|
||||||
|
_sidata = _etext; /* This is used by the startup in order to initialize the .data secion */
|
||||||
|
} >FLASH
|
||||||
|
|
||||||
|
/* This is the initialized data section
|
||||||
|
The program executes knowing that the data is in the RAM
|
||||||
|
but the loader puts the initial values in the FLASH (inidata).
|
||||||
|
It is one task of the startup to copy the initial values from FLASH to RAM. */
|
||||||
|
.data : AT ( _sidata )
|
||||||
|
{
|
||||||
|
. = ALIGN(4);
|
||||||
|
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
|
||||||
|
*(.data) /* .data sections */
|
||||||
|
*(.data*) /* .data* sections */
|
||||||
|
|
||||||
|
. = ALIGN(4);
|
||||||
|
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
|
||||||
|
} >RAM
|
||||||
|
|
||||||
|
/* Uninitialized data section */
|
||||||
|
.bss :
|
||||||
|
{
|
||||||
|
. = ALIGN(4);
|
||||||
|
_sbss = .; /* define a global symbol at bss start; used by startup code */
|
||||||
|
*(.bss)
|
||||||
|
*(.bss*)
|
||||||
|
*(COMMON)
|
||||||
|
|
||||||
|
. = ALIGN(4);
|
||||||
|
_ebss = .; /* define a global symbol at bss end; used by startup code */
|
||||||
|
} >RAM
|
||||||
|
|
||||||
|
.ARM.attributes 0 : { *(.ARM.attributes) }
|
||||||
|
}
|
||||||
44
atmel-samd/uart_core.c
Normal file
44
atmel-samd/uart_core.c
Normal file
@ -0,0 +1,44 @@
|
|||||||
|
#include <unistd.h>
|
||||||
|
#include "py/mpconfig.h"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Core UART functions to implement for a port
|
||||||
|
*/
|
||||||
|
|
||||||
|
#if MICROPY_MIN_USE_STM32_MCU
|
||||||
|
typedef struct {
|
||||||
|
volatile uint32_t SR;
|
||||||
|
volatile uint32_t DR;
|
||||||
|
} periph_uart_t;
|
||||||
|
#define USART1 ((periph_uart_t*)0x40011000)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Receive single character
|
||||||
|
int mp_hal_stdin_rx_chr(void) {
|
||||||
|
unsigned char c = 0;
|
||||||
|
#if MICROPY_MIN_USE_STDOUT
|
||||||
|
int r = read(0, &c, 1);
|
||||||
|
(void)r;
|
||||||
|
#elif MICROPY_MIN_USE_SAMD21_MCU
|
||||||
|
// wait for RXNE
|
||||||
|
while ((USART1->SR & (1 << 5)) == 0) {
|
||||||
|
}
|
||||||
|
c = USART1->DR;
|
||||||
|
#endif
|
||||||
|
return c;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Send string of given length
|
||||||
|
void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
|
||||||
|
#if MICROPY_MIN_USE_STDOUT
|
||||||
|
int r = write(1, str, len);
|
||||||
|
(void)r;
|
||||||
|
#elif MICROPY_MIN_USE_SAMD21_MCU
|
||||||
|
while (len--) {
|
||||||
|
// wait for TXE
|
||||||
|
while ((USART1->SR & (1 << 7)) == 0) {
|
||||||
|
}
|
||||||
|
USART1->DR = *str++;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user