<s>
The	O
Open	B-Application
JTAG	I-Application
project	O
is	O
an	O
open	B-License
source	I-License
project	O
released	O
under	O
GNU	B-Operating_System
License	O
.	O
</s>
<s>
It	O
is	O
a	O
complete	O
hardware	O
and	O
software	O
JTAG	O
reference	O
design	O
,	O
based	O
on	O
a	O
simple	O
hardware	O
composed	O
by	O
a	O
FTDI	O
FT245	O
USB	B-Protocol
front-end	O
and	O
an	O
Altera	O
EPM570	O
MAX	O
II	O
CPLD	B-General_Concept
.	O
</s>
<s>
The	O
capabilities	O
of	O
this	O
hardware	O
configuration	O
make	O
the	O
Open	B-Application
JTAG	I-Application
device	O
able	O
to	O
output	O
TCK	O
signals	O
at	O
24MHz	O
using	O
macro-instructions	O
sent	O
from	O
the	O
host	O
end	O
.	O
</s>
<s>
The	O
scope	O
is	O
to	O
give	O
the	O
community	O
a	O
JTAG	O
device	O
not	O
based	O
on	O
the	O
PC	O
parallel	O
port	O
:	O
Open	B-Application
JTAG	I-Application
uses	O
the	O
USB	B-Protocol
channel	O
to	O
communicate	O
with	O
the	O
internal	O
CPLD	B-General_Concept
,	O
sending	O
macro-instructions	O
as	O
fast	O
as	O
possible	O
.	O
</s>
<s>
The	O
complete	O
project	O
(	O
Beta	O
version	O
)	O
is	O
available	O
at	O
OpenCores.org	O
and	O
the	O
Open	B-Application
JTAG	I-Application
project	O
official	O
site	O
.	O
</s>
