Starts bootloader but doesn't recognize success?

[ndrwstn]

I'm having the same issue as #50 (but I'm posting a new issue because the Cyrillic topic probably isn't helpful to most users, no offense intended).

I'm trying to flash ncp-uart-6.7.8-115k.ebl on nortek husbzb-1 with 5.4.1-194 (brand new device) using the docker image. After 'CEL stick' I get 'EM3581 Serial Bootloader v.5.4.1.0 b962' followed by a newline and then the script hangs (and I have to kill it). Good news is no damage done to the device, but other than than nothing seems to happen.

I initiatized my device in minicom and it reacts as expected (both from the README and how the script works), and a string of 'C's were received. However, for some reason we don't get to L364 ('Successfully restarted ...') in ncp.py. Looking for suggestions.

husbzb-firmware/ncp.py

Lines 343 to 364 in d6a512c

	else:
	ser.readline() # 1. upload gbl or ebl
	ser.readline() # 2. run
	ser.readline() # 3. ebl info
	# Enter '1' to initialize X-MODEM mode
	ser.write(b'1')
	time.sleep(1)
	# Read responses
	ser.readline() # BL > 1
	ser.readline() # begin upload
	# Wait for char 'C'
	success = False
	start_time = time.time()
	while time.time()-start_time < BOOTLOADER_INIT_TIMEOUT:
	if ser.read() == b'C':
	success = True
	break
	if not success:
	print('Failed to restart into bootloader mode. Please see users guide.')
	sys.exit(1)
	print('Successfully restarted into bootloader mode! Starting upload of NCP image... ')

[mimimi0815]

I have the same issue. I assume it has also something todo with the "Scan", because when i do a scan first, i have also to break it.
First ttyUSB1 will be normally detected. (with zigbee), but on ttyUSB0 it hangs and i have to cancel the scirpt.

CMD: ./ncp.py scan
Connecting to.. /dev/ttyUSB1 57600 True False
Connecting to.. /dev/ttyUSB0 57600 True False
^CException: <class 'KeyboardInterrupt'> /dev/ttyUSB0
{"ports": [{"port": "/dev/ttyUSB1", "vid": "10C4", "pid": "8A2A", "deviceType": "zigbee", "stackVersion": "5.4.1-194"}, {"port": "/dev/ttyUSB0", "vid": "10C4", "pid": "8A2A", "deviceType": "unknown"}]}

[ndrwstn]

Are you trying to scan for the zwave tty or am I misunderstanding? I do not believe this script is supposed to be able to upgrade the zwave firmware--only zigbee.

[draftpunk]

I am having a similar issue. It simply hangs at the bootloader screen. Then I CTRL-C it after a few minutes.

Restarting NCP into Bootloader mode...
CEL stick
EM3581 Serial Bootloader v5.4.1.0 b962

^CTraceback (most recent call last):
  File "/tmp/silabs/./ncp.py", line 484, in <module>
    flash(args.port,args.file)
  File "/tmp/silabs/./ncp.py", line 351, in flash
    ser.readline() # BL > 1
  File "/usr/local/lib/python3.9/site-packages/serial/serialposix.py", line 565, in read
    ready, _, _ = select.select([self.fd, self.pipe_abort_read_r], [], [], timeout.time_left())
KeyboardInterrupt
^C
root@3f4fa21d4845:/tmp/silabs# 

[draftpunk]

Referring to this issue resolved my issue
#33

[ndrwstn]

The fix in #33 worked for me as well, and as I think there's a PR waiting there, I don't think there needs to be multiple open issues on the same problem. I'm going to close this, and I think #50 should also try this fix and close if it works.