8000 esp8266: Add board variant support. · micropython/micropython@abe4a5a · GitHub
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esp8266: Add board variant support.
This merges the existing GENERIC, GENERIC_1M, and GENERIC_512k boards into variants of the new ESP8266_ 8000 GENERIC board (renamed from GENERIC so as not to clash with other ports). Also moves the generation of the "OTA" variant (previously generated by autobuild/build-esp8266-latest.sh) into the variant. Following the convention established for the WEACTSTUDIO rp2 board, the names of the variants are FLASH_1M and FLASH_512K (but rename the .ld files to use MiB and kiB). This work was funded through GitHub Sponsors. Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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‎ports/esp8266/Makefile

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Original file line numberDiff line numberDiff line change
@@ -4,17 +4,22 @@ ifdef BOARD_DIR
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# the path as the board name.
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BOARD ?= $(notdir $(BOARD_DIR:/=))
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else
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# If not given on the command line, then default to GENERIC.
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BOARD ?= GENERIC
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# If not given on the command line, then default to ESP8266_GENERIC.
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BOARD ?= ESP8266_GENERIC
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BOARD_DIR ?= boards/$(BOARD)
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endif
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ifeq ($(wildcard $(BOARD_DIR)/.),)
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$(error Invalid BOARD specified: $(BOARD_DIR))
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endif
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# If the build directory is not given, make it reflect the board name.
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# If the build directory is not given, make it reflect the board name (and
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# optionally the board variant).
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ifneq ($(BOARD_VARIANT),)
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BUILD ?= build-$(BOARD)-$(BOARD_VARIANT)
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else
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BUILD ?= build-$(BOARD)
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endif
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include ../../py/mkenv.mk
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@@ -213,20 +218,26 @@ erase:
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reset:
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echo -e "\r\nimport machine; machine.reset()\r\n" >$(PORT)
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ifeq ($(BOARD_VARIANT),OTA)
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$(FWBIN): $(BUILD)/firmware.elf
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$(ECHO) "Create $@"
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$(Q)esptool.py elf2image $^
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$(Q)$(PYTHON) makeimg.py $(BUILD)/firmware.elf-0x00000.bin $(BUILD)/firmware.elf-0x[0-5][1-f]000.bin $(BUILD)/firmware-combined-ota.bin
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$(Q)cat $(YAOTA8266)/yaota8266.bin $(BUILD)/firmware-combined-ota.bin > $@
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$(Q)$(PYTHON) $(YAOTA8266)/ota-client/ota_client.py sign $@
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else
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$(FWBIN): $(BUILD)/firmware.elf
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$(ECHO) "Create $@"
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$(Q)esptool.py elf2image $^
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$(Q)$(PYTHON) makeimg.py $(BUILD)/firmware.elf-0x00000.bin $(BUILD)/firmware.elf-0x[0-5][1-f]000.bin $@
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endif
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$(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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ota:
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rm -f $(BUILD)/firmware.elf $(BUILD)/firmware.elf*.bin
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$(MAKE) LD_FILES=boards/esp8266_ota.ld FWBIN=$(BUILD)/firmware-ota.bin
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include $(TOP)/py/mkrules.mk
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clean-modules:

‎ports/esp8266/README.md

Lines changed: 25 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -23,6 +23,9 @@ Supported features include:
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Documentation is available at http://docs.micropython.org/en/latest/esp8266/quickref.html.
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The default build requires a 2MiB flash chip, but see below for support for
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1MiB and 512kB options.
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Build instructions
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------------------
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@@ -67,10 +70,10 @@ Then to compile the ESP8266 firmware:
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```
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$ cd ports/esp8266
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$ docker run --rm -v $HOME:$HOME -u $UID -w $PWD larsks/esp-open-sdk make -j BOARD=GENERIC
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$ docker run --rm -v $HOME:$HOME -u $UID -w $PWD larsks/esp-open-sdk make -j BOARD=ESP8266_GENERIC
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```
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This will produce binary images in the `build-GENERIC/` subdirectory.
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This will produce binary images in the `build-ESP8266_GENERIC/` subdirectory.
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Substitute the board for whichever board you're using.
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__Building with a local toolchain__
@@ -106,10 +109,10 @@ Then to compile the ESP8266 firmware:
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```
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$ cd ports/esp8266
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$ make -j BOARD=GENERIC
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$ make -j BOARD=ESP8266_GENERIC
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```
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This will produce binary images in the `build-GENERIC/` subdirectory.
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This will produce binary images in the `build-ESP8266_GENERIC/` subdirectory.
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Substitute the board for whichever board you're using.
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@@ -149,25 +152,29 @@ $ make PORT=/dev/ttyUSB0 FLASH_MODE=qio FLASH_SIZE=32m deploy
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(note that flash size is in megabits)
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If you want to flash manually using `esptool.py` directly, the image produced is
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`build-GENERIC/firmware-combined.bin`, to be flashed at 0x00000.
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`build-ESP8266_GENERIC/firmware-combined.bin`, to be flashed at 0x00000.
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The default board definition is the directory `boards/GENERIC`.
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The default board definition is the directory `boards/ESP8266_GENERIC`.
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For a custom configuration you can define your own board in the directory `boards/`.
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The `BOARD` variable can be set on the make command line, for example:
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```bash
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$ make BOARD=GENERIC_512K
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```
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__Reduced FlashROM variants__
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__512KB FlashROM version__
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The normal build described above requires modules with at least 2MiB of
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FlashROM onboard. There's a special configuration for 512KiB modules, which can
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be built with the `FLASH_512K` variant. This configuration is highly limited,
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lacks filesystem support, WebREPL, and has many other features disabled. It's
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mostly suitable for advanced users who are interested to fine-tune options to
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achieve a required setup. If you are an end user, please consider using a
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module with at least 2MiB of FlashROM.
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The normal build described above requires modules with at least 1MB of FlashROM
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onboard. There's a special configuration for 512KB modules, which can be
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built with `make BOARD=GENERIC_512K`. This configuration is highly limited, lacks
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filesystem support, WebREPL, and has many other features disabled. It's mostly
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suitable for advanced users who are interested to fine-tune options to achieve a
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required setup. If you are an end user, please consider using a module with at
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least 1MB of FlashROM.
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A variant is also provided for 1MiB modules which just lacks the included
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micropython-lib packages.
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The variant can be set on the make command line, for example:
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```bash
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$ make BOARD=ESP8266_GENERIC BOARD_VARIANT=FLASH_512K
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$ make BOARD=ESP8266_GENERIC BOARD_VARIANT=FLASH_1M
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```
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First start
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-----------

‎ports/esp8266/boards/ESP8266_GENERIC/_boot.py

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@@ -0,0 +1,6 @@
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# Minimal _boot.py for the 512kB variant. Does not set up a block device or
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# filesystem. Other variants use esp8266/modules/_boot.py.
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import gc
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gc.threshold((gc.mem_free() + gc.mem_alloc()) // 4)

‎ports/esp8266/boards/GENERIC/board.json renamed to ‎ports/esp8266/boards/ESP8266_GENERIC/board.json

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@@ -9,11 +9,13 @@
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],
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"images": [],
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"mcu": "esp8266",
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"product": "ESP8266 with 2MiB+ flash",
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"product": "ESP8266",
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"thumbnail": "",
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"url": "https://www.espressif.com/en/products/modules",
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"variants": {
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"ota": "OTA compatible"
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"OTA": "OTA compatible",
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"FLASH_1M": "1MiB flash",
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"FLASH_512K": "512kiB flash"
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},
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"vendor": "Espressif"
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}

‎ports/esp8266/boards/GENERIC/board.md renamed to ‎ports/esp8266/boards/ESP8266_GENERIC/board.md

Lines changed: 10 additions & 3 deletions
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@@ -1,6 +1,13 @@
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The following are daily builds of the ESP8266 firmware for boards with at
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least 2MiB of flash. They have the latest features and bug fixes, WebREPL is
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not automatically started, and debugging is enabled by default.
< B94F /td>1+
The following are daily builds of the ESP8266 firmware. This will work on
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boards with at least 2MiB of flash. They have the latest features and bug
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fixes, WebREPL is not automatically started, and debugging is enabled by
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default.
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For boards with 1MiB or 512k of flash, two variants are provided with reduced
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functionality. The 1MiB variant removes asyncio and FAT-filesystem support as
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well as some modules from micropython-lib. The 512kB variant further removes
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all filesystem support, as well as framebuffer support, some Python language
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features, and has less detailed error messages.
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Note: v1.12-334 and newer (including v1.13) require an ESP8266 module with
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2MiB of flash or more, and use littlefs as the filesystem by default. When

‎ports/esp8266/boards/GENERIC/manifest.py renamed to ‎ports/esp8266/boards/ESP8266_GENERIC/manifest_2MiB.py

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‎ports/esp8266/boards/GENERIC_512K/manifest.py renamed to ‎ports/esp8266/boards/ESP8266_GENERIC/manifest_512kiB.py

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‎ports/esp8266/boards/ESP8266_GENERIC/mpconfigboard.h

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#if defined(MICROPY_ESP8266_2M)
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#define MICROPY_HW_BOARD_NAME "ESP module"
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#define MICROPY_HW_MCU_NAME "ESP8266"
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#define MICROPY_PERSISTENT_CODE_LOAD (1)
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#define MICROPY_EMIT_XTENSA (1)
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#define MICROPY_EMIT_INLINE_XTENSA (1)
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#define MICROPY_DEBUG_PRINTERS (1)
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#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_NORMAL)
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#define MICROPY_READER_VFS (MICROPY_VFS)
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#define MICROPY_VFS (1)
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#define MICROPY_PY_CRYPTOLIB (1)
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#elif defined(MICROPY_ESP8266_1M)
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#define MICROPY_HW_BOARD_NAME "ESP module (1M)"
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#define MICROPY_HW_MCU_NAME "ESP8266"
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#define MICROPY_PERSISTENT_CODE_LOAD (1)
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#define MICROPY_EMIT_XTENSA (1)
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#define MICROPY_EMIT_INLINE_XTENSA (1)
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#define MICROPY_DEBUG_PRINTERS (1)
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#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_NORMAL)
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#define MICROPY_READER_VFS (MICROPY_VFS)
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#define MICROPY_VFS (1)
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#define MICROPY_PY_CRYPTOLIB (1)
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#elif defined(MICROPY_ESP8266_512K)
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#define MICROPY_HW_BOARD_NAME "ESP module (512K)"
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#define MICROPY_HW_MCU_NAME "ESP8266"
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#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_TERSE)
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#define MICROPY_PY_FSTRINGS (0)
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#define MICROPY_PY_BUILTINS_SLICE_ATTRS (0)
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#define MICROPY_PY_ALL_SPECIAL_METHODS (0)
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#define MICROPY_PY_REVERSE_SPECIAL_METHODS (0)
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#define MICROPY_PY_SYS_STDIO_BUFFER (0)
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#define MICROPY_PY_ASYNCIO (0)
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#define MICROPY_PY_RE_SUB (0)
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#define MICROPY_PY_FRAMEBUF (0)
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#endif

‎ports/esp8266/boards/ESP8266_GENERIC/mpconfigboard.mk

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@@ -0,0 +1,50 @@
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ifeq ($(BOARD_VARIANT),)
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LD_FILES = boards/esp8266_2MiB.ld
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MICROPY_ESPNOW ?= 1
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MICROPY_PY_BTREE ?= 1
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MICROPY_VFS_FAT ?= 1
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MICROPY_VFS_LFS2 ?= 1
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# Add asyncio and extra micropython-lib packages (in addition to the port manifest).
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FROZEN_MANIFEST ?= $(BOARD_DIR)/manifest_2MiB.py
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# Configure mpconfigboard.h.
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CFLAGS += -DMICROPY_ESP8266_2M
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endif
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ifeq ($(BOARD_VARIANT),FLASH_1M)
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LD_FILES = boards/esp8266_1MiB.ld
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MICROPY_ESPNOW ?= 1
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MICROPY_PY_BTREE ?= 1
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MICROPY_VFS_LFS2 ?= 1
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# Note: Implicitly uses the port manifest.
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# Configure mpconfigboard.h.
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CFLAGS += -DMICROPY_ESP8266_1M
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endif
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ifeq ($(BOARD_VARIANT),OTA)
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LD_FILES = boards/esp8266_ota.ld
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MICROPY_ESPNOW ?= 1
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MICROPY_PY_BTREE ?= 1
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MICROPY_VFS_LFS2 ?= 1
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# Note: Implicitly uses the port manifest.
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# Configure mpconfigboard.h.
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CFLAGS += -DMICROPY_ESP8266_1M
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endif
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ifeq ($(BOARD_VARIANT),FLASH_512K)
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LD_FILES = boards/esp8266_512kiB.ld
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# Note: Use the minimal manifest.py.
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FROZEN_MANIFEST ?= $(BOARD_DIR)/manifest_512kiB.py
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# Configure mpconfigboard.h.
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CFLAGS += -DMICROPY_ESP8266_512K
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endif

‎ports/esp8266/boards/GENERIC/mpconfigboard.h

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‎ports/esp8266/boards/GENERIC/mpconfigboard.mk

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‎ports/esp8266/boards/GENERIC_1M/board.json

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‎ports/esp8266/boards/GENERIC_1M/board.md

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‎ports/esp8266/boards/GENERIC_1M/mpconfigboard.h

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‎ports/esp8266/boards/GENERIC_1M/mpconfigboard.mk

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‎ports/esp8266/boards/GENERIC_512K/_boot.py

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‎ports/esp8266/boards/GENERIC_512K/board.json

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‎ports/esp8266/boards/GENERIC_512K/board.md

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‎ports/esp8266/boards/GENERIC_512K/mpconfigboard.h

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‎ports/esp8266/boards/GENERIC_512K/mpconfigboard.mk

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‎ports/esp8266/boards/esp8266_1m.ld renamed to ‎ports/esp8266/boards/esp8266_1MiB.ld

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‎ports/esp8266/boards/esp8266_2m.ld renamed to ‎ports/esp8266/boards/esp8266_2MiB.ld

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‎ports/esp8266/boards/esp8266_512k.ld renamed to ‎ports/esp8266/boards/esp8266_512kiB.ld

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