Hi, the CQ-REEK-SH4 board has a JTAG port and there is also a special JTAG debugger CQ-REEK offers. http://www.cqpub.co.jp/eda/CqREEK/SH4.HTM Now I'd like to know if this JTAG port can be used with the GNU tools for debugging and downloading code. Any suggestions/ideas are appreciated. Regards Chris -- Sent through GMX FreeMail - http://www.gmx.net