101 lines
3.9 KiB
Python
101 lines
3.9 KiB
Python
# Copyright (c) 2017 Linaro Limited.
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#
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# SPDX-License-Identifier: Apache-2.0
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'''Runner for flashing ESP32 devices with esptool/espidf.'''
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from os import path
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from west import log
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from west.runners.core import ZephyrBinaryRunner, RunnerCaps
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class Esp32BinaryRunner(ZephyrBinaryRunner):
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'''Runner front-end for espidf.'''
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def __init__(self, cfg, device, baud=921600, flash_size='detect',
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flash_freq='40m', flash_mode='dio', espidf='espidf',
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bootloader_bin=None, partition_table_bin=None):
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super(Esp32BinaryRunner, self).__init__(cfg)
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self.elf = cfg.elf_file
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self.device = device
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self.baud = baud
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self.flash_size = flash_size
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self.flash_freq = flash_freq
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self.flash_mode = flash_mode
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self.espidf = espidf
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self.bootloader_bin = bootloader_bin
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self.partition_table_bin = partition_table_bin
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@classmethod
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def name(cls):
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return 'esp32'
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@classmethod
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def capabilities(cls):
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return RunnerCaps(commands={'flash'})
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@classmethod
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def do_add_parser(cls, parser):
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# Required
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parser.add_argument('--esp-idf-path', required=True,
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help='path to ESP-IDF')
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# Optional
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parser.add_argument('--esp-device', default='/dev/ttyUSB0',
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help='serial port to flash, default /dev/ttyUSB0')
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parser.add_argument('--esp-baud-rate', default='921600',
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help='serial baud rate, default 921600')
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parser.add_argument('--esp-flash-size', default='detect',
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help='flash size, default "detect"')
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parser.add_argument('--esp-flash-freq', default='40m',
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help='flash frequency, default "40m"')
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parser.add_argument('--esp-flash-mode', default='dio',
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help='flash mode, default "dio"')
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parser.add_argument(
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'--esp-tool',
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help='''if given, complete path to espidf. default is to search for
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it in [ESP_IDF_PATH]/components/esptool_py/esptool/esptool.py''')
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parser.add_argument('--esp-flash-bootloader',
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help='Bootloader image to flash')
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parser.add_argument('--esp-flash-partition_table',
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help='Partition table to flash')
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@classmethod
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def create(cls, cfg, args):
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if args.esp_tool:
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espidf = args.esp_tool
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else:
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espidf = path.join(args.esp_idf_path, 'components', 'esptool_py',
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'esptool', 'esptool.py')
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return Esp32BinaryRunner(
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cfg, args.esp_device, baud=args.esp_baud_rate,
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flash_size=args.esp_flash_size, flash_freq=args.esp_flash_freq,
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flash_mode=args.esp_flash_mode, espidf=espidf,
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bootloader_bin=args.esp_flash_bootloader,
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partition_table_bin=args.esp_flash_partition_table)
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def do_run(self, command, **kwargs):
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bin_name = path.splitext(self.elf)[0] + path.extsep + 'bin'
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cmd_convert = [self.espidf, '--chip', 'esp32', 'elf2image', self.elf]
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cmd_flash = [self.espidf, '--chip', 'esp32', '--port', self.device,
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'--baud', self.baud, '--before', 'default_reset',
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'--after', 'hard_reset', 'write_flash', '-u',
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'--flash_mode', self.flash_mode,
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'--flash_freq', self.flash_freq,
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'--flash_size', self.flash_size]
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if self.bootloader_bin:
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cmd_flash.extend(['0x1000', self.bootloader_bin])
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cmd_flash.extend(['0x8000', self.partition_table_bin])
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cmd_flash.extend(['0x10000', bin_name])
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else:
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cmd_flash.extend(['0x1000', bin_name])
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log.inf("Converting ELF to BIN")
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self.check_call(cmd_convert)
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log.inf("Flashing ESP32 on {} ({}bps)".format(self.device, self.baud))
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self.check_call(cmd_flash)
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