Activity

From 07/29/2010 to 08/27/2010

08/28/2010

10:35 pm Task #1381 (Fixed): acquire ATMega 128RFA1 chips
in stock here w/ a 12 to 16 week lead time
http://webapps.nuhorizons.com/storefront/PartSearch.do?PartNumberSearch=A...
Dan Shope

08/14/2010

03:39 am Revision 561596fa (scoutece): changed the value on the accessory detect pin resistor divider to a...
Kevin Woo
03:31 am Revision 14ab72d8 (scoutece): added silk, fixed layout bugs
Kevin Woo
02:19 am Revision f397fa03 (scoutece): Added some more ground planes on the unused bottom layer
Kevin Woo
02:01 am Revision 3f08631a (scoutece): Layout completed. Need to fix silk
Kevin Woo

08/02/2010

12:50 am Revision 372d40a6 (scoutece): Signal routing completed, power still needs to be done.
Kevin Woo
10:00 pm Revision ad4c386a (scoutece): Finished layout for steppers and battery/charging contact support c...
Kevin Woo

07/30/2010

11:00 am Revision b27f70a5 (scoutece): Floorplan for the new stepper controller
Kevin Woo
12:55 am Revision 266d88f8 (scoutece): Replaced stepper controller with one that will work for our voltage...
Kevin Woo

07/29/2010

07:19 pm Task #1086 (Invalid): Design debug board
No longer needed. The gumstix can handle debugging on its own. We can also use FTDI breakout board for the debug now. Kevin Woo
07:18 pm Task #1018 (Fixed): Test motor backdrive
Initial tests show spikes of upto 7-10V which is within the maximum range of the voltage regulators to handle. We sup... Kevin Woo
07:17 pm Bug #990 (Invalid): TVS diode on motors
Motor drivers include these diodes already. Furthermore, the backdrive that we were experiencing differs now because ... Kevin Woo
07:15 pm Bug #1088 (Invalid): Switch motor power from VCC to VBatt
It has been decided to do this check in software for more versatility should the programmers want to run off the char... Kevin Woo
07:15 pm Task #1328 (Wontfix): Remove extraneous features from Scout
Changed to gumstix and removed all extraneous hardware Kevin Woo
07:13 pm Task #1328: Remove extraneous features from Scout
Changed to Gumstix and eliminated tons of hardware. Much simpler board now. Kevin Woo
07:14 pm Enhancement #1016 (Wontfix): ESD Protection
Lack of room / budget /time. Pins however are more protected anyway since they are either on the FFC which is enclose... Kevin Woo
07:13 pm Task #1341 (Fixed): Level shifter for motor control/pwm signals
Almost everything goes through a level shifter now Kevin Woo
07:12 pm Enhancement #1017 (Wontfix): Separate grounds
Our analog sections aren't so sensitive to warrant the extra work for this Kevin Woo
 

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