From: Ryan M. <ke...@gm...> - 2007-06-01 00:43:59
|
I just reflashed by Gumstix from messing it up a week or so ago, and i am unable to connect via the serial port. The gumstix boots and connect via wifi just fine, so I know that the gumstix itself is working correctly. I bought the console card specifically to try to diagnose earlier problems, and when i got no response i assumed the gumstix was messed up and had it reflashed - now that I still get no response makes me thing the console card is defective. I'm using the Serial-null cable and a serial-usb converter cable to connect - is there any possibility the card works and I've overlooked something else? Here's my dmesg dump after plugging in the serial-usb converter: [21278.900000] usb 1-2: new full speed USB device using uhci_hcd and address 2 [21279.060000] usb 1-2: configuration #1 chosen from 1 choice [21279.964000] usbcore: registered new interface driver usbserial [21279.964000] drivers/usb/serial/usb-serial.c: USB Serial support registered for generic [21279.964000] usbcore: registered new interface driver usbserial_generic [21279.964000] drivers/usb/serial/usb-serial.c: USB Serial Driver core [21279.980000] drivers/usb/serial/usb-serial.c: USB Serial support registered for pl2303 [21279.980000] pl2303 1-2:1.0: pl2303 converter detected [21279.980000] usb 1-2: pl2303 converter now attached to ttyUSB0 [21279.980000] usbcore: registered new interface driver pl2303 [21279.980000] drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor driver I'm using Ubuntu, and everything seems to be working fine. After plugging in the serial-usb converter, I've gone through both the kermit and minicom procedures listed on the wiki, but when i plug in the gumstix nothing happens in the console. I'm hoping that this is something simple i've overlooked that doesn't require me getting a new console card - I've spent 3 weeks waiting for various parts to come already and I'm getting frustrated with all the false starts... Thanks for any help |
From: Neil J. <nja...@gm...> - 2007-06-01 03:01:20
|
> I just reflashed by Gumstix from messing it up a week or so ago, and i am unable > to connect via the serial port. The gumstix boots and connect via wifi just > fine, so I know that the gumstix itself is working correctly. > > I bought the console card specifically to try to diagnose earlier problems, and > when i got no response i assumed the gumstix was messed up and had it reflashed > - now that I still get no response makes me thing the console card is defective. > I'm using the Serial-null cable and a serial-usb converter cable to connect - > is there any possibility the card works and I've overlooked something else? > Here's my dmesg dump after plugging in the serial-usb converter: > > [21278.900000] usb 1-2: new full speed USB device using uhci_hcd and address 2 > [21279.060000] usb 1-2: configuration #1 chosen from 1 choice > [21279.964000] usbcore: registered new interface driver usbserial > [21279.964000] drivers/usb/serial/usb-serial.c: USB Serial support registered > for generic > [21279.964000] usbcore: registered new interface driver usbserial_generic > [21279.964000] drivers/usb/serial/usb-serial.c: USB Serial Driver core > [21279.980000] drivers/usb/serial/usb-serial.c: USB Serial support registered > for pl2303 > [21279.980000] pl2303 1-2:1.0: pl2303 converter detected > [21279.980000] usb 1-2: pl2303 converter now attached to ttyUSB0 > [21279.980000] usbcore: registered new interface driver pl2303 > [21279.980000] drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial > adaptor driver > > I'm using Ubuntu, and everything seems to be working fine. After plugging in > the serial-usb converter, I've gone through both the kermit and minicom > procedures listed on the wiki, but when i plug in the gumstix nothing happens in > the console. > > I'm hoping that this is something simple i've overlooked that doesn't require me > getting a new console card - I've spent 3 weeks waiting for various parts to > come already and I'm getting frustrated with all the false starts... Are you sure the USB-serial converter is working? It looks like it's being detected, but have you verified that you can actually send/receive data with it? What happens if you connect the rx to tx (pin2 -> pin3) and type some characters in kermit/minicom? |
From: Ryan M. <ke...@gm...> - 2007-06-01 23:59:04
|
The serial cable seems to be working - when i connect the pins any text i type shows up in the kermit session - when i remove the connection and type nothing shows up. |
From: Dave H. <dhy...@gm...> - 2007-06-02 00:17:49
|
HI Ryan, On 6/1/07, Ryan Michael <ke...@gm...> wrote: > The serial cable seems to be working - when i connect the pins any text i type > shows up in the kermit session - when i remove the connection and type nothing > shows up. So the only other thing to make sure about is that hardware flow control is turned off. Obviously, the gumstix and serial daughtercard need to be plugged in so that they're overtop of each other (i.e. the gumstix shouldn't hang over the edge of the console board anywhere). Make sure that the gumstix is in fact seated properly and that you don't have any gap between the conenctors. And the connector in the corner of the console board is STUART and the one next to it is FFUART (the console). Which "console" board did you buy, and which gumstix do you have? -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Ryan M. <ke...@gm...> - 2007-06-02 00:37:13
|
How do i turn of hardware flow control? I'm using a Connex 400xm and the console-st everything seems to be connected properly and I've tried using both the serial plugs. |
From: Dave H. <dhy...@gm...> - 2007-06-02 00:43:23
|
Hi Ryan, On 6/1/07, Ryan Michael <ke...@gm...> wrote: > How do i turn of hardware flow control? > > I'm using a Connex 400xm and the console-st > > everything seems to be connected properly and I've tried using both the serial > plugs. Actually, since you can short out the Tx and Rx pin and see an echo, then that tells me that your PC side is fine, and tends to suggest that the conolse-st may not be functioning properly. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |