From: Mark W. <mwi...@gm...> - 2005-09-23 21:32:57
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Hello again, I hooked up the scope to check out whats going on with the Tx line, seems like for the most part its just noise. I am seeing a pulse, but its only around 100mv. I also checked out the Rx end just to see whats going on, and its a steady 5v, is this normal? I got the pinouts from: http://www.gumstix.org/tikiwiki/tiki-index.php?page=3DUART_Schematics and was assuming the Tx and Rx lines meant FROM the gumstix. Just in case its not just windows, I am going to be trying again in one of our FC4 box's using C-Kermit. I haven't used this program before, only when dealing with the gumstix, and haven't had the chance yet to actually log in using it. Any thing I should know besides: $ kermit -l /dev/ttyS0 > set carrier-watch off > set speed 115200 > connect in order to connect? It seems like before when I did that, it just ended up just not doing anything after that point when i tried to do anything such as "ls" or even attempt to type in "root" to log in. Does it look like I may need to get it reflashed? Or anything happening out of the norm which could be more of a problem? -Mark On 23/09/05, Mark Wiesbock <mwi...@gm...> wrote: > Thanks Tim, Craig and Jony, > > A lot to reply to, thanks tons for helping me out with this. > > Jony: > > Without the gumstix connected, HT connects and disconnects just fine, > so that part seems to be running well. > > I tested out the loopback on the gumstix end, it seems to be working, > tho was kind of hard to pull off using a paper clip, kinda had to mash > my elbow in the keyboard in order to get some characters out, hah. > But, everything seems find on that end. > > I do in fact have access to quite a few 'scopes, anything particular I > should be looking for? Just random noise? > > > > Craig: > > Hopefully its as simple as getting a flash taken care of. As well, > we've ordered two more gumstix anyways, to help out just in case this > happens again, tho Id like to see whats going on with this one before > the other two arrive, and maybe at that point send it back out for re > flashing. > > > > Tim: > > I have access to a an MM and scopes. Im planning on taking a look at > ti with the scope shortly and will let you guys know whats going on in > the Tx. As far as looking for shorts, I may put that on the back > burner since Ive been pretty busy lately with a lot of stuff other > than the gumstix project, and as well, we're getting two more, so that > should help things out quite a bit. > > > Thanks again! > -Mark > > > > > > > > > On 22/09/05, Tim Auton <ti...@ut...> wrote: > > On 20 Sep 2005, at 16:50, Mark Wiesbock wrote: > > [huge snip - it's a long thread] > > > > > "Unable to open COM1. Please check your port settings". > > > > Mark, > > > > Do you have access to a multimeter and an oscilloscope? I've followed > > the drama so far and it looks like the software options have been > > pretty well explored, so my next step would be to check the hardware > > for shorts or continuity (as appropriate) and stick an oscilloscope on > > the Gumstix's serial output (with nothing but power connected) to see > > what it's doing. That should help localise the problem. > > > > > > Tim > > > > > > > > ------------------------------------------------------- > > SF.Net email is sponsored by: > > Tame your development challenges with Apache's Geronimo App Server. > > Download it for free - -and be entered to win a 42" plasma tv or your v= ery > > own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.p= hp > > _______________________________________________ > > gumstix-users mailing list > > gum...@li... > > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > |