Hi,<br><div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008"><br>We want to design a tool to speed up our hardware
diagnostics via JTAG port. </span></font></font></font></div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008"></span></font></font></font> </div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008">So w<span class="937200610-29052008">e have question to
ask for your help:</span></span></font></font></font></div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008"></span></font></font></font> </div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008">1. How do we access PowerPC's internal GPRs and SPRs
etc. via JTAG instruction? </span></font></font></font></div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008"></span></font></font></font> </div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008">We'v gone through IEEE.1149.1. There are no standard
JTAG instruction to access CPU's data bus, including internal or external data
bus. Do we must need private JTAG instruction to access CPU's internal resource?
if it is, could you share the documents with
us?</span></font></font></font></div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008"></span></font></font></font> </div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008">2. For 'BSDL' usage, you know, we have many components
on one board and much more signals are processed specically. So, how to
integrate PowerPC's BSDL with other components' 'BSDL'? Could you give us any
hints on it? or any document is also welcome!</span></font></font></font></div>
<div dir="ltr" align="left"><font face="Arial"><font color="#0000ff"><font size="2"><span class="937200610-29052008"></span></font></font></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Arial" size="2">Your any help is
appreciated!<br><br></font></div><font color="#0000ff"><font size="2"><font face="Arial">John Zhou<br></font></font></font><div dir="ltr" align="left"><font color="#0000ff" face="Arial" size="2"><span class="937200610-29052008"></span></font> <br>
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