No USB port on OS X

Questions and discussion about The WiPy 1.0 board and CC3200 boards.
Target audience: Users with a WiPy 1.0 or CC3200 board.
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marcelstoer
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Joined: Sun Nov 08, 2015 9:42 pm
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No USB port on OS X

Post by marcelstoer » Sun Nov 08, 2015 9:47 pm

My WiPy is in the extension board which is connected via USB to my MacBook running OS X 10.9.5. I put

Code: Select all

from machine import UART
import os
uart = UART(0, baudrate=115200)
os.dupterm(uart)
into boot.py, triggered a reset i.e. reboot but there's no /dev/tty.usbmodem* device. I haven't found any other mention of this issue in this forum so I'm suspecting I'm doing something wrong even though it's straight out of the docs?

Damien
Site Admin
Posts: 647
Joined: Mon Dec 09, 2013 5:02 pm

Re: No USB port on OS X

Post by Damien » Mon Nov 09, 2015 12:19 am

There should be a usbmodem device regardless of the settings in boot.py. This is because the USB serial is always on and running, even with no wipy in the dock. So there must be some hardware or driver problem.

scudderfish
Posts: 24
Joined: Sun Oct 04, 2015 9:06 am

Re: No USB port on OS X

Post by scudderfish » Mon Nov 09, 2015 6:23 am

Assuming it's an FTDI chip on the Wipy, try the driver from this page http://www.ftdichip.com/Drivers/VCP.htm

Regards,
David

Fizzyorr
Posts: 5
Joined: Wed Oct 14, 2015 11:40 am

Re: No USB port on OS X

Post by Fizzyorr » Fri Oct 14, 2016 11:13 am

I've had this problem too since day one - no /dev/tty.usbmodem* device on OSX. Tried installing the driver linked to above without success. I've also tried dropping the specified baud rate in boot.py. LoPy then fails to boot and needs safe resetting. Help!

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