User guide
22 GR-LEON4-ITX Development Board
Quick Start Guide
The updated configuration can also be tailored as for normal SnapGear configurations. For 
further information on SnapGear please see the SnapGear Linux for LEON manual.
Figure 5-1: Selecting a SnapGear template configuration
Downloading an image with GRMON
After the new image has been compiled it can be downloaded to the board using GRMON. 
In the transcript below we connect to the board using the EDCL, the flag -nb must be given 
to GRMON in order to not break on page faults, the -u flag is also given in order to see the 
serial console in GRMON:
jan@jan:~/Linux/snapgear-2.6-p41$ grmon -eth -ip 192.168.0.54 -nb -u 
 GRMON LEON debug monitor v1.1.39 professional version 
 Copyright (C) 2004-2008 Aeroflex Gaisler - all rights reserved. 
 For latest updates, go to http://www.gaisler.com/ 
 Comments or bug-reports to support@gaisler.com 
 ethernet startup. Found AHB 1 to AHB 0 bridge 
 Device ID: : 0x102 
 GRLIB build version: 3508 
 initialising ...................................... 
 detected frequency: 100 MHz 
 Component             Vendor 
 LEON4 SPARC V8 Processor      Gaisler Research 
 LEON4 SPARC V8 Processor      Gaisler Research 
 …if the Linux image will use video output we need to initialize the DVI transmitter:
grlib> i2c 3 dvi init_l4itx_dvi 
 Transmitter was not set to Chrontel CH7301C (AS=0), changing.. 
© Aeroflex Gaisler AB March 2013, Rev. 0.3










