I don't know if this is still needed, but take a look at: http://www.easics.be/webtools/crctool -- _________________________________________________________ Nikos P. Mouratidis Technical Manager Microelectronics Group inAccess Networks Tel : +30-1-9537110 230 Sigrou Ave. Fax : +30-1-9537129 176 72 Athens e-mail : nmo@inaccessnetworks.com _________________________________________________________