
Bitporter User Guide www.achronix.com PAGE 12
Chapter 3 – Connecting the Bitporter Pod
Introduction
Choosing a Connection Type — USB versus Ethernet
Ethernet
•Ethernet‐connectedBitporterpodsarevisiblefrommultiplePCsatonce:
However, users can overwrite each otherʹs programs. The Achronix
acx_stapl_player/Bitporter programming system does prevent multiple users
fromprogrammingthe device simultaneouslybut does not ensure that thecon‐
nectedhardwareisnotalreadymid‐test.Suchtestqueueingisleft
uptotheuser.
Podautodetectvisibilityislimitedtothepodʹslocalsubnet.Beyondthelocalsub‐
net,thepodʹsIPaddressmustbeknownbeforeausercanconnecttoit.
•Bitporter performance may be slower via Ethernet than via High‐Speed USB,
dependingupon networkconfiguration.
Onacongestednetwork,programming via
Ethernetcantakeupto5x longerthanviaHigh‐SpeedUSB.
•BeforeattemptingEthernetconnectiontoaBitporterpod,pleaseconsultthenetwork
administratortoensuretheBitporterisallowedtoconnecttothenecessarynetwork.
•AUSBconnectionisrequiredtoalterthe Bitporter pod
ʹsEthernetconfiguration,for
example,selectingstaticIPoverDHCP,changingthestaticIP,etc.(seecommand‐line
options-id,-iq,and-isinTable 4‐1,page 24)
USB
•Bitporter performance may be faster than via Ethernet, depending upon network
configuration.
•OnlyvisiblefromthePChostingtheconnection.
Connecting the Bitporter Pod
Important! NeverapplypowertothetargetwithouttheBitporterpodturnedon.TheBitporterpod
mustalwaysbepowerediftheconnectedtargetdeviceispowered.AlwayssupplypowertotheBitporter
podfirstbeforesupplyingpowertothetargethardware.Alwayspowerdownthetargethardwarebefore
poweringdown
theBitporterpod.Whenpower‐cyclingtheBitporterpod,leaveitturnedoffforatleast
5seconds.
Important! TheBitporterpodissensitivetoElectrostaticDischarge(ESD).Whenoperatingthe
Bitporterpod,ESDprecautionsmustbeobservedtoensureproperfunction.
TheBitporterpodhasfourlabeledjacks:
•“TARGET”,usedbythe
14‐pinJTAGribboncable
• “ETHERNET”
•“USB2.0”
• “+5VDC”
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