Open up a terminal window and type:
ls -l /dev/tty.usb*
You should see something like this: (the serial number will differ)
crw-rw-rw- 1 root wheel 19, 0 Feb 25 13:13 /dev/tty.usbserial-A567JW3P
If you're seeing that, then you should then be able tobring up the K3 Utility
and "talk" to the K3. I just installedmy KIO3B about a month ago, and I'm
running MacOS Sierra 10.12.3on a early 2015 13" Retina MacBook Pro. Under my
"System Report",I see my USB disk (used for Time Machine) and the built-in
BluetoothController plugged into the "USB 3.0 Bus", and then below that, Isee a
"General Purpose USB Hub" as the next item plugged into the 3.0bus, and
attached to the GP bus, I have a USB Audio CODEC and anFT232R USB UART.
The CODEC is a TI device and it's reporting that 500mA is availableto it, and
it's requiring 0mA. The FTDI FT232R UART is likewisereporting 500mA available
to it, and it's drawing 90mA. Since the"hub" is inside the KIO3B and being
powered by it, it should notbe causing the USB power complaint you're getting
on the Mini. BUT,since the Mini is an older device, it is probably USB2, not
USB3,and can't source as much current, etc., and its circuitry *may* besomewhat
intolerant of sudden changes. (I've had problems with blowingexternally powered
USB2 hubs, apparently caused by hot un/plugging,resulting in MacOS reporting
devices seen that Parallels and Windowswould/could not talk to. I've now
switched to the KIO3B and I'm notgoing to do any hot un/plugging, just to be on
the safe side.)
In fact, you might want to see if you can troubleshoot your problemby shutting
everything down and powering it all down, configuring yourcabling, and then
powering it all back up and booting it up. I knowit sounds like a nuisance, but
it may give you a valuable indication.
HTH, and 73,
Bayard R. "Brandy" Coolidge, N1HO
From: PHILIP GRAITCER <pgra...@me.com>
To: elecraft@mailman.qth.net
Cc: John Adams <ki4...@mindspring.com>
Sent: Saturday, February 25, 2017 1:42 PM
Subject: [Elecraft] Can not connect KIO3B USB with my MacMini
I am unable to connect the USB on my K3, modified with a KIO3B set of boards,
to my MacMini, running OS10.9.5. I am not able to connect it to my MacbookPro
running Sierra, 10.12.3, either. My Macs simply do not see the USB port. If I
look at the “About This Mac” report on the Macs, I see that a “General Purpose
USB Hub” is connected when the USB cable from the K3 to the Apple products is
connected. I have made sure I have the latest drivers. I have tried different
USB cables. I have Googled and can not find an explanation or a solution. I
have done several system resets. Occasionally when I plug the USB cable into
the Mini, but not the Pro, I get a message “USB Devices disabled - please
disconnect the device drawing too much power” - doing that seems to do nothing.
But I understand the KIO3B draws only 90ma and the Mini puts out 500ma.
Elecraft has told me that they have users who have Macs and KIO3B working.
Has anyone have a suggestion what I should do to fix this? The KIO3B boards
were installed by Elecraft so I assume it left the factory working, although I
have not ruled out a short or defect in the board that may have occurred
.
I have not tried the K3/board with a Windows computer but the same thing
happens when I try to find the ports on Windows10 in Bootcamp.
Thanks in advance for any help.
Phil, W3HZZ
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