Hey David,
We noticed the dialout group thing, and have tested it with me being
both root (via sudo minicom USBTTY2) and dialout. Thanks!
--Ryan Monroe
626.773.0805
On 05/20/2013 11:46 AM, David MacMahon wrote:
Hi, Ryan,
Everything seems OK. Were you root or a member of the dialout group when you
tried connecting? I use screen instead of minicom, so I can't offer any extra
ideas regarding minicom itself.
FWIW, /dev/ttyUSB2 is the one that usually works for me.
Dave
On May 20, 2013, at 11:34 AM, Ryan Monroe wrote:
Hey all, sorry for the spam :-(
I'm trying to communicate with my ROACH2 for initial configuration. My understanding
is that we should set up a machine per this <link>. Then use the USB port the
same way we used serial for ROACH1... just over either ttyUSB2 or ttyUSB3.
My problem is that I receive no communications from the ROACH through USB.
After configuring the settings in minicom (filename, flow control, init/reset
string), I can connect to the four USB virtual serial ports on the ROACH2, but
I receive no data upon starting it up. Here's the test I ran:
====================================
<Initial state: computer off, ROACH2 unplugged, USB cable disconnected>
Start up computer. Connect ROACH2 to power. Do not start up ROACH2.
<USB_OK led is off>
Upon logging in, run "dmesg > tc_dmesg_preUSB.txt" (see file)
run "ls /dev/ttyUSB*" (see results in "tc_lsOnUSB.txt")
Plug in the USB cable to both ends
run "dmesg > tc_dmesg_postUSB.txt" (see file)
run "ls /dev/ttyUSB*" (see results in "tc_lsOnUSB.txt")
<USB_OK led turns on>
Run "sudo minicom -s TTYUSB2" and "sudo minicom -s TTYUSB3". Take a screenshot
to display the state of the configurations (tc_minicom_settings.jpg)
Run:
"sudo minicom TTYUSB0"
"sudo minicom TTYUSB1"
"sudo minicom TTYUSB2"
"sudo minicom TTYUSB3"
Take a screenshot (tc_before_powering_roach.jpg)
Press the ROACH2 power button
Wait several minutes
Take a screenshot to show that we received nothing from the ROACH.
(tc_before_powering_roach.jpg ... it was the same result)
Unplug the USB cable
Watch as the four minicom terminals fill with error messages
(tc_usb_removed.png)
=====================================
So ladies and gents, any ideas? Thanks in advance!
--
--Ryan Monroe
626.773.0805
<tc_lsOnUSB.txt><tc_dmesg_postUSB.txt><tc_dmesg_preUSB.txt><tc_minicom_settings.jpg><tc_before_powering_roach.jpg><tc_usb_removed.png>
