From: N Kumar <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Tuesday, August 19, 2014 at 6:43 AM To: "[email protected]" <[email protected]> Subject: Re: [beagleboard] u boot serial issue
> Hi John, > Thanks for response. > So do you think that my ttl to USB is not working? if so then if we remove the > ttl to USB no serial o/p on another com port created after connecting BBB USB > power cable. > So in your case you are getting serial logs from com port created after > connecting TTL-USB ? > Please explain in details your setup. please also let me know the link of the > vendors for ttl-USB. > Thanks > Niraj http://elinux.org/Beagleboard:BeagleBone_Black_Serial http://eewiki.net/display/linuxonarm/BeagleBone+Black Regards, John > > > On Monday, August 18, 2014 12:12:37 AM UTC+5:30, john3909 wrote: >> >> From: Niraj Kumar <[email protected] <javascript:> > >> Reply-To: "[email protected] <javascript:> " >> <[email protected] <javascript:> > >> Date: Sunday, August 17, 2014 at 12:37 AM >> To: "[email protected] <javascript:> " <[email protected] >> <javascript:> > >> Subject: [beagleboard] u boot serial issue >> >>> Hi Beagle bone black experts, >>> I have recently started to setup beagle bone black. Initially it was with >>> great difficulty I was able to get ttl to usb cable. >>> Now I have setup where I can get serial logs in serial console application >>> like teraterm. >>> I would explain my setup and then the real issue. >>> >>> Setup: >>> >>> BBB(TTL)-------->window7 pc(USB) (This will appear as com port comx) >>> >>> BBB(mini UBS)-------> window7 USB(This will apear as com port comy) >>> >>> Real issue: >>> ---------------- >>> I connect TTL to window7 USB port and open serial console with comx. >>> Then I connect power supply using mini usb to window7 USB. I am not getting >>> any serial logs from uboot which I wanted to stop at uboot prpmpt. >>> When I open comy port created by connecting mini USB to window7 USB serial >>> logs from kernel I get. >>> Can some one tell how and what to enable to get logs from Uboot? >> Serial log is on by default. Make sure you serial port parameters are setup >> as 115200,n,8. Don¹t enable xon/xoff and disable DTS/RTS handshaking. This >> won¹t stop the BBB from sending data, but it will prevent you from sending >> data back to the BBB. BTW, some of the tty-USB adapters don¹t always work. I >> have a cheap one that didn¹t work. The one recommended by BeagleBoard is the >> one I use and it works fine. >> >> Regards, >> John >>> >>> Thanks >>> N kumar >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google Groups >>> "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected] <javascript:> . >>> For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
