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https://git.yoctoproject.org/meta-zephyr
synced 2026-04-30 15:32:11 +02:00
1a611eda3a
Implement a class allowing flashing Arduino-101 using dfu-util.
User needs to have dfu-utils installed on the host machine.
All three cores supported (x86, ARM, ARC).
Sample usage:
$ MACHINE=arduino-101 bitbake xxx
$ MACHINE=arduino-101 bitbake xxx -c flash_usb
Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
59 lines
1.9 KiB
Plaintext
59 lines
1.9 KiB
Plaintext
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python do_flash_usb() {
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import subprocess
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return_code = subprocess.call("which dfu-util", shell=True)
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if return_code != 0:
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bb.error("ERROR: dfu_util binary not in PATH")
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sys.exit(1)
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board = d.getVar('BOARD')
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if board == 'arduino_101_sss':
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iface = 'sensor_core'
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elif board == 'arduino_101':
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iface = 'x86_app'
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elif board == 'arduino_101_ble':
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iface = 'ble_core'
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else:
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bb.error(" Unsupported board %s" % board)
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sys.exit(2)
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# We need to serialize flashing of separate images (when using multiconfig)
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lock = bb.utils.lockfile(os.path.join(d.getVar('TOPDIR'),"flash-dfu.lock"), False, True)
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image = "%s/%s.elf" % (d.getVar('DEPLOY_DIR_IMAGE'), d.getVar('PN'))
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statement = 'dfu-util -v -a ' + iface + ' -d 8087:0aba -D ' + image.replace('elf','bin')
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bb.note("command: %s" % statement)
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bb.plain("Attempting to flash board: %s" % board)
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# Arduino-101 needs to be reset in order to enter "flash mode".
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# The flash window is about 5 seconds.
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# However, if the device is flashed, it remains in the "flash mode"
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# until it is reset again, so it needs to enter the flash mode via reset
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# only once even if we flash images for multiple cores. So we only prompt
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# for reset once.
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timeout = 5
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promptneeded = True
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while (timeout > 0):
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time.sleep(0.5)
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timeout = timeout - 0.5
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return_code = subprocess.call(statement, shell=True)
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if return_code == 0:
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break
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if promptneeded:
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bb.warn("\n\n *** Failed to flash %s. *** \n Press reset, will retry for five seconds...\n" % board)
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promptneeded = False
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if return_code != 0:
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bb.error("Error flashing %s [%d]" % (board,return_code))
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else:
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bb.plain("Success (return code %d)" % return_code)
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bb.utils.unlockfile(lock)
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}
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addtask do_flash_usb
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do_flash_usb[nostamp] = "1"
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