User guide

9 GR-LEON4-ITX Development Board

Quick Start Guide

Connecting with the included JTAG adapter

The JTAG adapter shall be connected to the board using the JTAG pin header shown in the

middle bottom of Figure 2-2. Please ensure that the JTAG cable/adapter is connected with

the correct polarity, to prevent unintended damage to the board or cable.

To connect to the board using the JTAG adapter delivered with the board, issue the

command:

grmon -jtag

Connecting with a Xilinx USB JTAG adapter

The JTAG adapter shall be connected to the board using the JTAG pin header, or ribbon

connector, shown in the middle bottom of Figure 2-2. Please ensure that the JTAG

cable/adapter is connected with the correct polarity, to prevent unintended damage to the

board or cable.

To connect to the board using a Xilinx USB adapter, issue the command:

grmon -xilusb

Connecting via the USB interface

Please see the GRMON User's Manual for how to set up the required USB driver software.

Then connect to the board using the command:

grmon -usb

Connecting via serial UART

Please refer to the GR-LEON4-ITX Development Board User Manual and the GRMON

User's Manual for instructions on how to connect via the serial debug interface.

NOTE: The DSU UART interface does not have a RS232 transceiver mounted on the board!

See user board user manual for instructions.

Connecting via Ethernet

Before connecting via Ethernet the host computer (the computer running GRMON) must be

connected to the same network as the GR-LEON4-ITX board. After that the IP address of the

Ethernet Debug Communication Link (EDCL) must be set up. This address can be set up

either by PROM software or by using another debug link. After connecting with an alternate

debug link, issue the command edcl <ip address>. Figure 2-3 below shows a session where

an IP address is set and the expected output:

After the EDCL IP address has been set, connect to the target with

Figure 2-3: Setting the EDCL IP address