Finished USB interface on power board
Added decoupling capacitors to FTDI chip, changed signaling VCC from USBVCC to AVR VCC so that AVR can signal to FTDI chip. Added USBTX andUSBRX signals between FTDI chip and AVR.
Started to add USB port to power board
Added USB port and USB-UART converter to power board schematic. I thinkthe converter has enough hooked up to it to run without burning up, butit's not hooked up the AVR yet.
Shorted GND to BATT_GND in power schematic
Connected GND and BATT_GND to eachother using a 0 Ohm resistor. I wantto keep the signals separate to ease routing, but they need to beconnected to ensure that all of the current that needs to go through thefuel gauge sense resistor does so.
Fixed ERC errors
Added some missing junctions and a missing label. Approved "no value" warnings for parts for which a value would be nonsensical.
Started making kwoo's recommended changes
Made changes to charging circuit: Connected CLP to VIN on U1. Addeddiodes to charge BOOST capacitor from battery and provide currentsensing inductor with outlet if power turns off (don't really understandhow the latter works). Adjusted inductor to 4.7uH after re-calculating...
Update prefixes and names for two parts
Updated prefixes for DS2786 and MP1702 in kwoo.lbr to U so that Eaglewon't use the default prefix, U$, for them. Also manually updated namesin charging_test.{sch,brd}.
Added pullup resistors and an LED to power test
Added pullup resistors for I2C connections to power test board. Alsoadded a diagnostic LED to indicate when the AVR has power. Stillprobably needs an ISP header and USB controller/port.
First draft of power testing circuit schematic
Fleshed out power testing circuit. It is still missing a few things, andI don't understand every little bit of it, but it probably won't look alot different when it's done. Added some passive components on the...
Updated charging test circuit from kwoo library
Ran update command in charging_test.sch to update parts from kwoo.lbr.
Updated kwoo.lbr with previous kwoo changes
A few months ago, Kevin sent me a new version of kwoo.lbr. Updatedkwoo.lbr with these changes (using the Eagle update command). Also ranupdate in scoutfly.sch. This did not affect the results of erc or drcfor scoutfly.
fixing last 13 angle problem in drc
don't really know how to fix the last one.worked on right bottom on both top layer and bottom layer
solving some angle problems on scoutflu board
Fixed some of the paths which are at unusual angles
fixing some of the angle problems in scoutfly.sch
Added kwoo's standalone charging schematic.
charging_test.sch is a standalone circuit schematic for a prototype totest the charging circuit that will ultimately go on Scoutfly. kwoocreated it. It uses some new parts, but I don't know that much about it...
Finished hooking up new gyroscope.
Connected pitch output of gyroscope to AVR and gave pitch an output LPF.Added optional HPFs to both pitch and yaw outputs. We can just leave thepads empty if we think they won't be useful.
To route the changes, had to squeeze some other stuff. Moved the AVR...
Routed new gyroscope.
Routed new gyroscope on board in Eagle.
Swapped gyroscope part in schematic.
Replaced old gyroscope part with new one in schematic. Assuming thatpitch output or amplified outputs are undesired. Not using optionalhigh-pass filter on output. Have not yet routed connections to gyroscopeon board.
Flipped FFC connector on PCB.
Flipped FFC connector (part J3) on Scoutfly so that mating side facesout from edge of board. Rerouted wires connecting to J3 to accomodatethis. Because the connected ports don't line up as well as they used to,the area below J3 has a lot of roundabout paths and layer switches. I...
Began fixing bugs for Scoutfly fixup.
Made several of the changes listed on wiki page ScoutflyUpdate2011. Inparticular:Removed R4 and connected pin 4 on U$3 directly to VCC.Connected VREG_EN to VCC with 10 kOhm resistor (new R4).Changed value of R26 to 100 kOhms....
updated silkscreen with new version and date
updated scoutfly and kwoo lbr with dual NPN
renamed 10.04 gerber zip
Merge branch 'master' of ssh://roboclub.org/home/svn/scouthw
fixed extra inner layer problem with set used-layers
re-ran CAM with dimension layer
added dimensions file
using 11 mil clearance, added latest gerber zip
added gerbers as of october 3, 2010. dfm check in progress.
updated scoutfly with new jst parts
swapped jst-5 headers from right angle to vertical
changed accessory pin names and moved one to sonar.
redid traces for front screw holes to avoid antenna. moved battery silk down.
added grounded srew holes to scoutfly. for review by kwoo.
changed the value on the accessory detect pin resistor divider to a standard value
added silk, fixed layout bugs
Added some more ground planes on the unused bottom layer
Layout completed. Need to fix silk
Signal routing completed, power still needs to be done.
Finished layout for steppers and battery/charging contact support circuitry
Floorplan for the new stepper controller
Replaced stepper controller with one that will work for our voltages, fixes to the AVR on the clock and decoupling caps
AVR and BOM layout completed.
Gumstix layout mostly complete, AVR layout started. Some additional notes around the stepper driver on configuration, changes to the SPI header
Removed USB power since it would not work, simplified power area, reordered pins on the level shifters for easier layout.
Removed extraneous pullups from stepper controller
Fixed some pull up/down bugs
Started layout on scoutfly, updated schematic to use gumstix
Copied old atmel version of the scoutfly to the current version
Backed up the scoutfly atmel version in the repo
Version 1.0 of the scoutfly. These are the zipped gerbers. Sent to the board/stencil houses
Fixed issues with non-standard resistor values
Fixed error in smybol for the Power OR controllers where the FET's drain only had 1 out of 6 connections. Finished redoing the floorplan on the Power OR section. Routing done for the top and bottom layers. Only need to do the power plane level now.
Routed some power planes. Started on the power OR controllers but need to redo floorplan.
Added SPI lines to the wireless chip and the control lines. Replaced standoff terminals with the Sparkfun parts which have better keepouts for the screwheads.
Routed all signal wires out of the ARM. Still need to do final connections. Moved flash jumpers and debug port around to facilitate routing
Finished routing PSU, user buttons, fixed a bug in tolerances in the wireless chip.
Reorganized the I2C pins on the FFC. Routed I2C and the I2C levelshifter. Finished the PSU poly pours except for the VCC pour. The Motor current limiters are laid out except for the VCC connection. Hooked up the wireless chips except SPI. Added a mounting hole for the BOM board.
Some PSU routing, WL chip except external signals is done. Fixed resistor size (package) for the MAX745 battery charger
ORB and button wiring, some UART stuff.
Routed AVR, motor drivers, JTAG, USB ports, debug UART and some of the decoupling caps across the board.
Initial commit of the unfinished scout board and the current scout library