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There is a 0README.TXT file of instructions for the TEST ROM. It is
in the distributed ZIP. <br>
<br>
18.432Mhz is the oscillator everyone is using. The most basic UNA
instruction is: the un-configured system comes up at 9600 baud. If
you want to use any higher or lower standard rate, specify it in
Setup. But do the test ROM first.<br>
<br>
--John<br>
<br>
<br>
<br>
<br>
On 07/25/2015 05:09 PM, Kip Koon wrote:
<blockquote cite="mid:000b01d0c737$595bedf0$0c13c9d0$@sc.rr.com"
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Hi
John,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">At
first I used 115200 baud 8n1 rts/cts, then I tried 9600 baud
8n1 rts/cts. Do I need 8n2. Yes, I probably need to
reread the instructions. Quite honestly I did this from
memory. Maybe I need to check MY memory. :) I’m
using a crystal frequency of 18.432MHZ for both the test and
UNA. Maybe I need a different Oscillator for testing? <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size: 12pt; color:
rgb(31, 73, 125);">Kip Koon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 12pt; color:
rgb(31, 73, 125);"><a moz-do-not-send="true"
href="mailto:***@sc.rr.com">***@sc.rr.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 12pt; color:
rgb(31, 73, 125);"><a moz-do-not-send="true"
href="http://www.cocopedia.com/wiki/index.php/Kip_Koon">http://www.cocopedia.com/wiki/index.php/Kip_Koon</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 12pt; color:
rgb(31, 73, 125);"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><o:p> </o:p></span></p>
<div>
<div style="border-right: medium none; border-width: 1pt
medium medium; border-style: solid none none; border-color:
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padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif"; color:
windowtext;">From:</span></b><span style="font-size:
10pt; font-family:
"Tahoma","sans-serif"; color:
windowtext;"> <a class="moz-txt-link-abbreviated" href="mailto:***@googlegroups.com">***@googlegroups.com</a>
[<a class="moz-txt-link-freetext" href="mailto:***@googlegroups.com">mailto:***@googlegroups.com</a>] <b>On Behalf Of </b>John
Coffman<br>
<b>Sent:</b> Saturday, July 25, 2015 8:48 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:***@googlegroups.com">***@googlegroups.com</a><br>
<b>Subject:</b> Re: [N8VEM: 19897] Troubleshooting UNA
boot rom on Mark IV<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Are you booting at 9600 bps to start? Are
you waiting long enough while UNA determines the crystal
frequency? 10 seconds, minimum. This happens only on the
first cold boot, or a cold startup requested from Setup.<br>
<br>
You should get the test ROM working first. However, the baud
rate will depend on your crystal. See the instructions.<br>
<br>
If the test ROM does not pass all tests, then UNA is unlikely
to come up.<br>
<br>
--John<br>
<br>
<br>
<br>
<br>
On 07/25/2015 04:53 AM, Kip Koon wrote: <o:p></o:p></p>
<p class="MsoNormal">Hi Guys,<o:p></o:p></p>
<p class="MsoNormal">I’m programed the UNA boot rom into the
512KB flash chip, but when I power up the board, I get only 4
flashes of the yellow led. I’m told there should be 10.
Before this, I had ran the test rom image and all tests passed
until it got to the serial tests. The board displayed the
ASCII $7F character over and over. I never saw any regular
ASCII text. Any ideas? Thanks in advance. <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 12pt;">Kip Koon</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 12pt;"><a
moz-do-not-send="true" href="mailto:***@sc.rr.com">***@sc.rr.com</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 12pt;"><a
moz-do-not-send="true"
href="http://www.cocopedia.com/wiki/index.php/Kip_Koon">http://www.cocopedia.com/wiki/index.php/Kip_Koon</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 12pt;"> </span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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