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AR# 17530

3.2 EDK SP2 - Connecting to the OPB MDM when more than one Xilinx FPGA are in the JTAG Chain

説明

Keywords:
EDK, EST, XMD, OPB, MDM, JTAG, Chain

Urgency:
Hot

Problem Description:
I encounter a connection problem when using the OPB MDM in a Xilinx FPGA, and the FPGA Debug Target is not the first FPGA in the JTAG Chain, as in the following example, where the FPGA Debug Target is the XC2V1000:

TDI --> XC18V04 --> XC2V3000 --> XC2V1000 --> TDO

If you launch XMD to connect automatically to the OPB MDM (mbconnect mdm), then XMD assumes that the FPGA Debug Target with the MDM Module is the first XC2V3000 FPGA in the JTAG Chain, and not the XC2V1000 in the second position.

ソリューション

FPGA デバッグ ターゲットに JTAG チェーンの 2 番目の FPGA を明示的に指定する必要があります。

mbconnect mdm [-cable <jtag cable options>] [-configdevice <jtag chain options>] [-debugdevice <jtag chain options><microblaze options>]

上記の JTAG チェーンの場合、次のように指定する必要があります。

mbconnect mdm [-debugdevice devicenr 3 partname virtex2 irlength 6 <microblaze options>
AR# 17530
日付 04/06/2007
ステータス アーカイブ
種類 一般
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