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>
