Users Guide

Thisiswhereyouconnecttheservosorotheroutputdevices.Usecaution
andremovepowerwhenconnectinganythingtotheI/Obus.
ThisistheProcessorGoodLED.Itwilllightsteadywhenpowerisapplied
andwillremainlituntiltheprocessorhasreceivedavalidserialcommand.It
willthengooutandthenblinkwheneveritisreceivingserialdata.Note,this
featuremaynotbeusedonuser-submittedfirmwarefortheSSC-32.
ThetwoBAUDinputsallowconfiguringthebaudrate.Pleaseseethe
examplesbelow.TheABCDinputshavebothstaticandlatchingsupport.
Theinputshaveinternalweak(50k)pullupsthatareusedwhenaRead
DigitalInputcommandisused.Anormallyopenswitchconnectedfromthe
inputtogroundwillworkfine.Thesefeaturesmaynotbeusedonuser-
submittedfirmwarefortheSSC-32.
Simplyplugastraight-throughM/FDB9cablefromthisplugtoafree9pin
serialportonyourPCforreceivingservopositioningdata.Alternatelya
USB-to-serialadaptorwillworkwell.
Thisisan8pinEEPROMsocket.Itisnotusedinthisversionofthe
firmware,althoughitwillbeusedinfutureversions.
ThisistheTTLserialportorDB9serialportenable.Installtwojumpersas
illustratedbelowtoenabletheDB9port.InstallwireconnectorstoutilizeTTL
serialcommunicationfromahostmicrocontroller.
8
9
10
11
12
13
Jumpers
00
01
10
11
BaudRate
2400
9600
38.4k
115.2k
AppliesVS1toVS2.
Exampleservo
connection16-31.
Exampleservo
connection0-15.
Black
Yellow
Red
Red
Yellow
Black
ShortingBarJumpersandConnectorsataglance
Baudrate9600. Baudrate115.2k
forPCuse.
Baudrate2400.
UpdatetheAtmel
chipfirmware.
Caution!Don'tdothisif
youdon'tknowwhatyou're
doing.Connectingthis
jumpercanoverwritethe
Atmelchip'sfirmware.
DC-01
Baudrate38.4k
forBasicAtomuse.
TTLSerialcom.
BotBoardside...
TTLSerialcom.
SSC-32side...
DB9enablefor
PCuse.
ABCDauxiliary
inputs.
AppliesVStoVL.