That's great news. We can help you a lot more easily if you have a scope.
Probe TP4, pin 32 of the MCU. Connect the scope probe gnd to TP3 or the big gnd wire,
and clip the tip on the ring at TP4. Set the triggering to Ch 1. Adjust the trigger level to
2V and the volts/div to 2 volts, taking into account whether you are using a 10:1 probe.
According to my comment in the code listing, you should see a pulse there every 7 mSec
or so if the CPU is executing the code correctly.
Also, you never said what you see on the RESETb input to the CPU.
It should be sitting high. If you set the scope to trigger at 2V and probe that pin,
the scope should not trigger, if it's in "manual" trigger mode. If it triggers, then there
is a glitch on that pin which would not be good. Then if you switch to "auto" trigger,
you should see a nice >3.5VDC constant level.
Bob
--------------------------------------------
On Mon, 2/8/16, jw_dewdney@yahoo.com [PolySix] <PolySix@yahoogroups.com> wrote:
Subject: Re: [PolySix] Re: The Post I didn't want to make....
To: PolySix@yahoogroups.com
Date: Monday, February 8, 2016, 12:51 PM
Hi Bob... actually i realized about five minutes
after posting that was the thermistor, though i missed it
because i was working rather slavishly from Jed's
spreadsheet which didnt seem to have it on
there.
i DO have a
scope actually. a lovely Tek 2445A. however I'm a bit
intimidated about troubleshooting logic circuits and
signals....ive only ever used it for analogue audio stuff
really... so theres more to learn for me.
And i DID get some more functioning
5v test points on the board though still not TP1 which is
zero... and TP2 is a bit low at 4.1v or thereabouts. I am a
bit confused as the manual uses a totally different language
like 'TP-J7' and i am not sure how they correspond
to the board ...
#yiv1538245622 #yiv1538245622 --
#yiv1538245622ygrp-mkp {
border:1px solid #d8d8d8;font-family:Arial;margin:10px
0;padding:0 10px;}
#yiv1538245622 #yiv1538245622ygrp-mkp hr {
border:1px solid #d8d8d8;}
#yiv1538245622 #yiv1538245622ygrp-mkp #yiv1538245622hd {
color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px
0;}
#yiv1538245622 #yiv1538245622ygrp-mkp #yiv1538245622ads {
margin-bottom:10px;}
#yiv1538245622 #yiv1538245622ygrp-mkp .yiv1538245622ad {
padding:0 0;}
#yiv1538245622 #yiv1538245622ygrp-mkp .yiv1538245622ad p {
margin:0;}
#yiv1538245622 #yiv1538245622ygrp-mkp .yiv1538245622ad a {
color:#0000ff;text-decoration:none;}
#yiv1538245622 #yiv1538245622ygrp-sponsor
#yiv1538245622ygrp-lc {
font-family:Arial;}
#yiv1538245622 #yiv1538245622ygrp-sponsor
#yiv1538245622ygrp-lc #yiv1538245622hd {
margin:10px
0px;font-weight:700;font-size:78%;line-height:122%;}
#yiv1538245622 #yiv1538245622ygrp-sponsor
#yiv1538245622ygrp-lc .yiv1538245622ad {
margin-bottom:10px;padding:0 0;}
#yiv1538245622 #yiv1538245622actions {
font-family:Verdana;font-size:11px;padding:10px 0;}
#yiv1538245622 #yiv1538245622activity {
background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}
#yiv1538245622 #yiv1538245622activity span {
font-weight:700;}
#yiv1538245622 #yiv1538245622activity span:first-child {
text-transform:uppercase;}
#yiv1538245622 #yiv1538245622activity span a {
color:#5085b6;text-decoration:none;}
#yiv1538245622 #yiv1538245622activity span span {
color:#ff7900;}
#yiv1538245622 #yiv1538245622activity span
.yiv1538245622underline {
text-decoration:underline;}
#yiv1538245622 .yiv1538245622attach {
clear:both;display:table;font-family:Arial;font-size:12px;padding:10px
0;width:400px;}
#yiv1538245622 .yiv1538245622attach div a {
text-decoration:none;}
#yiv1538245622 .yiv1538245622attach img {
border:none;padding-right:5px;}
#yiv1538245622 .yiv1538245622attach label {
display:block;margin-bottom:5px;}
#yiv1538245622 .yiv1538245622attach label a {
text-decoration:none;}
#yiv1538245622 blockquote {
margin:0 0 0 4px;}
#yiv1538245622 .yiv1538245622bold {
font-family:Arial;font-size:13px;font-weight:700;}
#yiv1538245622 .yiv1538245622bold a {
text-decoration:none;}
#yiv1538245622 dd.yiv1538245622last p a {
font-family:Verdana;font-weight:700;}
#yiv1538245622 dd.yiv1538245622last p span {
margin-right:10px;font-family:Verdana;font-weight:700;}
#yiv1538245622 dd.yiv1538245622last p
span.yiv1538245622yshortcuts {
margin-right:0;}
#yiv1538245622 div.yiv1538245622attach-table div div a {
text-decoration:none;}
#yiv1538245622 div.yiv1538245622attach-table {
width:400px;}
#yiv1538245622 div.yiv1538245622file-title a, #yiv1538245622
div.yiv1538245622file-title a:active, #yiv1538245622
div.yiv1538245622file-title a:hover, #yiv1538245622
div.yiv1538245622file-title a:visited {
text-decoration:none;}
#yiv1538245622 div.yiv1538245622photo-title a,
#yiv1538245622 div.yiv1538245622photo-title a:active,
#yiv1538245622 div.yiv1538245622photo-title a:hover,
#yiv1538245622 div.yiv1538245622photo-title a:visited {
text-decoration:none;}
#yiv1538245622 div#yiv1538245622ygrp-mlmsg
#yiv1538245622ygrp-msg p a span.yiv1538245622yshortcuts {
font-family:Verdana;font-size:10px;font-weight:normal;}
#yiv1538245622 .yiv1538245622green {
color:#628c2a;}
#yiv1538245622 .yiv1538245622MsoNormal {
margin:0 0 0 0;}
#yiv1538245622 o {
font-size:0;}
#yiv1538245622 #yiv1538245622photos div {
float:left;width:72px;}
#yiv1538245622 #yiv1538245622photos div div {
border:1px solid
#666666;height:62px;overflow:hidden;width:62px;}
#yiv1538245622 #yiv1538245622photos div label {
color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}
#yiv1538245622 #yiv1538245622reco-category {
font-size:77%;}
#yiv1538245622 #yiv1538245622reco-desc {
font-size:77%;}
#yiv1538245622 .yiv1538245622replbq {
margin:4px;}
#yiv1538245622 #yiv1538245622ygrp-actbar div a:first-child {
margin-right:2px;padding-right:5px;}
#yiv1538245622 #yiv1538245622ygrp-mlmsg {
font-size:13px;font-family:Arial, helvetica, clean,
sans-serif;}
#yiv1538245622 #yiv1538245622ygrp-mlmsg table {
font-size:inherit;font:100%;}
#yiv1538245622 #yiv1538245622ygrp-mlmsg select,
#yiv1538245622 input, #yiv1538245622 textarea {
font:99% Arial, Helvetica, clean, sans-serif;}
#yiv1538245622 #yiv1538245622ygrp-mlmsg pre, #yiv1538245622
code {
font:115% monospace;}
#yiv1538245622 #yiv1538245622ygrp-mlmsg ∗ {
line-height:1.22em;}
#yiv1538245622 #yiv1538245622ygrp-mlmsg #yiv1538245622logo {
padding-bottom:10px;}
#yiv1538245622 #yiv1538245622ygrp-msg p a {
font-family:Verdana;}
#yiv1538245622 #yiv1538245622ygrp-msg
p#yiv1538245622attach-count span {
color:#1E66AE;font-weight:700;}
#yiv1538245622 #yiv1538245622ygrp-reco
#yiv1538245622reco-head {
color:#ff7900;font-weight:700;}
#yiv1538245622 #yiv1538245622ygrp-reco {
margin-bottom:20px;padding:0px;}
#yiv1538245622 #yiv1538245622ygrp-sponsor #yiv1538245622ov
li a {
font-size:130%;text-decoration:none;}
#yiv1538245622 #yiv1538245622ygrp-sponsor #yiv1538245622ov
li {
font-size:77%;list-style-type:square;padding:6px 0;}
#yiv1538245622 #yiv1538245622ygrp-sponsor #yiv1538245622ov
ul {
margin:0;padding:0 0 0 8px;}
#yiv1538245622 #yiv1538245622ygrp-text {
font-family:Georgia;}
#yiv1538245622 #yiv1538245622ygrp-text p {
margin:0 0 1em 0;}
#yiv1538245622 #yiv1538245622ygrp-text tt {
font-size:120%;}
#yiv1538245622 #yiv1538245622ygrp-vital ul li:last-child {
border-right:none !important;
}
#yiv1538245622