Preliminary power board placement complete
Placed all parts on power test board in what I believe will be theirapproximate final locations. No routing done yet. Board probably won'tget bigger, because I left room to grow.
Partial placement of power board
Placed AVR, FTDI chip, and USB port on power test board, along withtheir accessory components. They are probably pretty close to theirfinal resting place but may move a little bit later.
Changed IO voltage for FTDI IC on power board
Changed VCCIO input for FTDI chip on power test board from USB_VCC tointernally generated 3.3V signal. This should have no power effects, butKevin suggests that it may make the chip behave a litte bit nicer (not...
Fixed ERC errors from unconnected wires
Some wires created in the previous few commits were not actuallyconnected to the pins they ended at. I fixed them.
Changed Schematic
Tied USB Shield pin to ground
Added activity LED's to the FT232 chip using the TXLED and RXLED pins
Changed Schematic Per Kevin Woo's Email
Changed U5 VSS from GND to VBATT_GND
Added GND PIN connection to ISP header
Switched USB_TX and USB_RX pins on the microcontroller to use the hardwaresupported UART pins. Also switched TX and RX connections.
Updated Schematic File
Added missing capacitor between Vin and GND in the charge circuit.
Fixed some schematic errors identified by the ERC.
Connected capacitor C12 which apeared connected but was actuallydisconnected.
Approved error of VCC being connect to a power input
Added a missing junction
Undo accidental extraction of zipped Gerber files
Restored compressed Gerber files from commit6bcd5b932bde03c525653653638fddd5251a5705 after they were accidentlyuncompressed (and the ZIP files deleted) in commit072e099013d16c67deffe4ef7299f8c05c2dd6c2. Deleted directories created...
Updated DS2786 footprint in kwoo library
Updated package footprint for DS2786 in kwoo.lbr based on recommendedland placement in datasheet for DFN10 package. DS2786's datasheet listsTDFN10 as its package type but doesn't give placement guidance or auseful package description. Unable to find a datasheet for TDFN10, but...
Increased mini-USB plug drill hole size
Imported MINI-USB- device from Hirose Connectors library into kwoolibrary. In UX60-MB-5S8 package, increased drill hole size on cornerpins from .8 mm to .9 mm. I did not drill out the original too-smallholes on Scoutfly, so I don't know whether this is sufficient or not....
Updated inductor package for power board
Created new package and device in library for MPI4040 inductor to beused in power test board. Updated part on power test board.
Fixed GND pad on LT3650 charger IC
LT3650 package in kwoo.lbr had a polygon around a through-hole pad toapproximate a large SMD pad connected by a via directly to the groundplane. Created a new package that is like this one but has no via, just anormal SMD pad. Used this package in the power test board, which has no...
Updated design rules for power board
Updated design rules for power board to match DorkbotPDX specifications.This removed some of the DRC errors for the USB port and charger. Thecharger still has a couple that may be from inherently illogicalpackage specification.
Added new charger and pushbutton controller parts
Added LT3650 and LTC2954 to kwoo.lbr. Kevin sent me an updated librarywith these parts previously, but I mistakenly did not import them atthat time.
Disapproved DRC errors on power board
Disapproved of previously approved DRC errors for power board. They areapparently legitimate problems that need to be taken care of.
powerboard placed, needs routing
Fixed gas gauge and charging components
Added extra decoupling capacitor between battery voltage and ground nextto charging circuit to allow board to run with charger but no battery.Connected system side of gas gauge sense resistor to GND to make allcurrent returning to battery go through sense resistor. Removed 0 Ohm...
Added missing components around AVR on power board
Added ISP header, pullup resistor for AVR reset line, and decouplingcapacitors for AVR power lines. Connected ISP header to SPI interface onAVR.
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
Revert "Test commit"
This reverts commit d2d61ecc68a436f01f7f85756ca0709399543268.Test revert for demonstration purposes.
Test commit
Created a new file for demonstration purposes.
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.
Added Eagle part for new gyroscope.
Created symbol for new gyroscope (LPY5150AL). This part is sold bySparkfun but not in the Sparkfun Eagle library. Another part by the samemanufacturer with the same package is in the Sparkfun library. Copiedthis package into kwoo.lbr and used it for the LPY5150AL part.
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
Accessory port silk did not match actual pinout, fixed some schematic issues.
Centered hall effect sensor, broke out mag_inc and mag_dec pins
Shortened encoder board, added more descriptive silk
Updated charging board, added diagnostic magnetic encoder boards
fixed: Charge LED was always connected to 5V. Revised silk
Added mini blade fuse, enlarged silk
Revised sense resistor to 1W rating to handle 2A load
Fixed packages and added silk
Created board schematic and started layout for charging board
Added storage/charging station
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.
Increased trace width on VCC and ACC_5V lines
Changed trace angles to 45deg and moved vias from silkscreen
Added SmartFly directory and component specs for ATtiny261
Added website silk and moved vias away from silk labels
Rerouted traces for aesthetics
Revised to pass DRC, added top ground plane and connecting vias
Changed power traces to 16mil, refined layout
Changed trace width to 8mil as per BatchPCB DRC, changed stepper to RA ZH JST6
updated scoutfly with new jst parts
updated silk on jst parts
Merge branch 'master' of roboclub8.frc.ri.cmu.edu:/home/svn/scouthw
All components routed, first pass. Needs cleaned up and final silk added
updated gitignore for temp library files
added JST_6 VERT part
Started routing, all but sonar and stepper.
swapped jst-5 headers from right angle to vertical
Added .gitignore file to ignore Eagle temp files
Added silk and mounting holes
Roboclub logo library
Added 5x2 accessory header and placed components
Added board perimeter, consolidated power connectors
Revised header placement on breafkly for more efficent routing
Renamed board to breakfly.sch
Added breakfly diagram
initial commit jst-based breakfly board
Renamed (molex cgrid) Breakfly schematic to breakfly_old. Starting new version using JST connectors.
updated kwoo.lbr with vertical package to jst_5
changed accessory pin names and moved one to sonar.
redid traces for front screw holes to avoid antenna. moved battery silk down.
4 Layer, 6mil trace/width, 15mil drill minimum drc file
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