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Bitporter User Guide www.achronix.com PAGE 12

Chapter 3 – Connecting the Bitporter Pod

Introduction

Choosing a Connection Type — USB versus Ethernet

Ethernet

•Ethernet‐connectedBitporterpodsarevisiblefrommultiplePCsatonce:

 However, users can overwrite each otherʹs programs. The Achronix

acx_stapl_player/Bitporter programming system does prevent multiple users

fromprogrammingthe device simultaneouslybut does not ensure that thecon‐

nectedhardwareisnotalreadymid‐test.Suchtestqueueingisleft

uptotheuser.

 Podautodetectvisibilityislimitedtothepodʹslocalsubnet.Beyondthelocalsub‐

net,thepodʹsIPaddressmustbeknownbeforeausercanconnecttoit.

•Bitporter performance may be slower via Ethernet than via High‐Speed USB,

dependingupon networkconfiguration.

Onacongestednetwork,programming via

Ethernetcantakeupto5x longerthanviaHigh‐SpeedUSB.

•BeforeattemptingEthernetconnectiontoaBitporterpod,pleaseconsultthenetwork

administratortoensuretheBitporterisallowedtoconnecttothenecessarynetwork.

•AUSBconnectionisrequiredtoalterthe Bitporter  pod

ʹsEthernetconfiguration,for

example,selectingstaticIPoverDHCP,changingthestaticIP,etc.(seecommand‐line

options-id,-iq,and-isinTable 4‐1,page 24)

USB

•Bitporter performance may  be faster than via Ethernet, depending upon network

configuration.

•OnlyvisiblefromthePChostingtheconnection.

Connecting the Bitporter Pod

Important! NeverapplypowertothetargetwithouttheBitporterpodturnedon.TheBitporterpod

mustalwaysbepowerediftheconnectedtargetdeviceispowered.AlwayssupplypowertotheBitporter

podfirstbeforesupplyingpowertothetargethardware.Alwayspowerdownthetargethardwarebefore

poweringdown

theBitporterpod.Whenpower‐cyclingtheBitporterpod,leaveitturnedoffforatleast

5seconds.

Important! TheBitporterpodissensitivetoElectrostaticDischarge(ESD).Whenoperatingthe

Bitporterpod,ESDprecautionsmustbeobservedtoensureproperfunction.

TheBitporterpodhasfourlabeledjacks:

•“TARGET”,usedbythe

14‐pinJTAGribboncable

• “ETHERNET”

•“USB2.0”

• “+5VDC”

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Achronix Bitporter Manual de usuario Pagina 18