From: Duane B. <dua...@gm...> - 2007-11-24 22:36:50
|
I have a Gumstix basix 200 with a Roboaudiostix which appears may not boot together. The Roboaudio board is PCB00037-R816. I've added the 10K pullup resistor between Rx and GND on the Gumstix serial connector, but haven't yet made a wire harness to connect the serial cable. Do I need to make the mods shown here for the combo to boot? http://docwiki.gumstix.org/Robostix_modifications#Getting_the_console_to_work_.28Roboaudiostix_R431.29 Duane |
From: Dave H. <dhy...@gm...> - 2007-11-25 01:49:18
|
Hi Duane, On Nov 24, 2007 2:36 PM, Duane Beck <dua...@gm...> wrote: > I have a Gumstix basix 200 with a Roboaudiostix which appears may not > boot together. The Roboaudio board is PCB00037-R816. I've added the > 10K pullup resistor between Rx and GND on the Gumstix serial > connector, but haven't yet made a wire harness to connect the serial > cable. The pullup need to go between Rx and +5. Putting it between Rx and GND will force it into u-boot every time you boot. > Do I need to make the mods shown here for the combo to boot? > http://docwiki.gumstix.org/Robostix_modifications#Getting_the_console_to_work_.28Roboaudiostix_R431.29 Those mods aren't needed to make it boot, just if you need to provide power to the serial adapter. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Duane B. <dua...@gm...> - 2007-11-25 03:07:09
|
Sorry, that was a typo. I meant Rx and +5. I'll double check it. On Nov 24, 2007 8:49 PM, Dave Hylands <dhy...@gm...> wrote: > The pullup need to go between Rx and +5. Putting it between Rx and GND > will force it into u-boot every time you boot. > > > Do I need to make the mods shown here for the combo to boot? > > http://docwiki.gumstix.org/Robostix_modifications#Getting_the_console_to_work_.28Roboaudiostix_R431.29 > > Those mods aren't needed to make it boot, just if you need to provide > power to the serial adapter. |
From: Duane B. <dua...@gm...> - 2007-11-26 04:09:24
|
Turns out I got the board turned around and soldered the resistor between the wrong two pins. It's booting now. I take it there isn't enough power output to drive an 8 ohm speaker? I can hear it, but it's very quiet. On Nov 24, 2007 10:07 PM, Duane Beck <dua...@gm...> wrote: > Sorry, that was a typo. I meant Rx and +5. I'll double check it. > > > On Nov 24, 2007 8:49 PM, Dave Hylands <dhy...@gm...> wrote: > > The pullup need to go between Rx and +5. Putting it between Rx and GND > > will force it into u-boot every time you boot. > > > > > Do I need to make the mods shown here for the combo to boot? > > > http://docwiki.gumstix.org/Robostix_modifications#Getting_the_console_to_work_.28Roboaudiostix_R431.29 > > > > Those mods aren't needed to make it boot, just if you need to provide > > power to the serial adapter. > |
From: Dave H. <dhy...@gm...> - 2007-11-26 05:03:31
|
Hi Duane, On Nov 25, 2007 8:09 PM, Duane Beck <dua...@gm...> wrote: > Turns out I got the board turned around and soldered the resistor > between the wrong two pins. It's booting now. > I take it there isn't enough power output to drive an 8 ohm speaker? > I can hear it, but it's very quiet. Yeah - I think it can drive headphones fine, but you'll need an amp of some type to drive a real speaker. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |