Connecting with the GDB Debugger
Please follow the steps below to connect your board with the GDB debugger.
1 Install Cygwin and the GNU Cross Development Tool Chain provided on the CD-ROM or
downloaded for free from Logic’s website at the following location:
https://www.logicpd.com/auth/login.php
.
2 Connect the BDM Interface to the ETX board connector J10 and a parallel cable to PC.
3 Open a Cygwin window and at the Cygwin prompt, then launch GDB by typing:
‘m68k-bdm-elf-gdb’ <enter>.
4 Connect GDB to the BDM Interface by typing ‘target bdm /dev/bdmcf0’ <enter>.
5 If you see the text ‘error: could not access the GiveIO device,’ you must manually start the
GIVEIO driver to give hardware access to GDB.
a. To manually start GIVEIO in Windows 2000, go to Device Manager and show
hidden devices by selecting View>Show Hidden Devices. Expand the Non-Plug
and Play Drivers category and double click on GIVEIO. Click the drivers tab. In
the ‘Current Status’ section, click ‘Start’. In the ‘Startup’ section, select
‘Automatic’. Click OK. Retry step 2 above.
6 Test the connection by typing ‘frame 0’ <enter>, ‘info reg’ <enter> to display system registers.
If you see the list of system registers, you are successfully connected.
4.4
Sample Application
The Zoom CDK LITE comes with a sample application that can be found on the website. For
instructions, see the Zoom CDK LITE User’s Manual.
Zoom ColdFire QuickStart Guide
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