Kontron VMP1 with Netbootloader Manuel d'utilisateur télécharger pdf (Page 119)

VMP1 JTAG Subsystem

ID 26037, Rev. 01 Page D - 3® 2002 PEP Modular Computers GmbH

JTAG Subsystem

Description

All the JTAG capable devices on the VMP1 can be accessed through the onboard JTAG

chain. The factory setting of the chain is such that only the onboard logic is in the chain.

If it is required to access the Processor via the JTAG chain a different setting must be

used (some resistors must be reset).

The following picture illustrates the construction of the JTAG chain.

Figure D-1: JTAG Chain Illustration

Kahlua

Altera

Logic

Universe II

R183

TDI1

TDI

TDX3

TDI

TDITDI

TDO

TDO TDO

R187

TDO

TDX1

TDI2

R180

R106

3.3V

R94

R181

10k

R104

R116

R107

TDX4

TDX2

Resistor installed

Resistor not installed

Default setting:

1 2 ... 114 115 116 117 118 119 120

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Kontron VMP1 with Netbootloader Manuel d'utilisateur Page 119