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yeah but these are ROM not RAM.<br>
The datasheet says "These ROMs may be factory programmed with data
or programs provided by the application developer."<br>
<br>
No idea if waldorf went all the way to burn a custom loader into
these ROMs at the chip factory.<br>
At least the normal firmware should be located on the flash,
otherwise you could not update it.<br>
<br>
julian<br>
<br>
<div class="moz-cite-prefix">Am 23.02.2017 um 16:39 schrieb Terry
Shultz:<br>
</div>
<blockquote
cite="mid:012F52C1-8972-444D-9D80-BBB74E52588B@earthlink.net"
type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
Hello All,
<div class=""><br class="">
</div>
<div class="">The DSP56362 Motorola DSP does have P, X, and Y
memory</div>
<div class=""><br class="">
</div>
<div class="">
<div class="page" title="Page 4">
<div class="layoutArea">
<div class="column">
<p class=""><span style="font-size: 12.000000pt;
font-family: 'TimesNewRomanPSMT'" class="">On-Chip
Memories<br class="">
— Modified Harvard architecture allows simultaneous
access to program and data memories
— 30720 x 24-bit on-chip program ROM</span><span
style="font-size: 10.000000pt; font-family:
'TimesNewRomanPSMT'; vertical-align: 5.000000pt"
class="">1 </span><span style="font-size:
12.000000pt; font-family: 'TimesNewRomanPSMT'"
class="">(disabled in 16-bit compatibility mode)<br
class="">
— 6144 x 24-bit on-chip X-data ROM</span><span
style="font-size: 10.000000pt; font-family:
'TimesNewRomanPSMT'; vertical-align: 5.000000pt"
class="">1<br class="">
</span><span style="font-size: 12.000000pt; font-family:
'TimesNewRomanPSMT'" class="">— 6144 x 24-bit on-chip
Y-data ROM</span><span style="font-size: 10.000000pt;
font-family: 'TimesNewRomanPSMT'; vertical-align:
5.000000pt" class="">1<br class="">
</span><span style="font-size: 12.000000pt; font-family:
'TimesNewRomanPSMT'" class="">— Program RAM,
instruction cache, X data RAM, and Y data RAM sizes
are programmable
</span></p>
</div>
</div>
<div class="layoutArea">
<div class="column">
<p class=""><span style="font-size: 9pt; font-weight:
700;" class="">Instruction
Cache
</span></p>
<p class=""><span style="font-size: 9pt;" class="">Disabled
Enabled
Disabled
Enabled
</span></p>
</div>
<div class="column">
<p class=""><span style="font-size: 9pt; font-weight:
700;" class="">Switch
Mode
</span></p>
<p class=""><span style="font-size: 9pt;" class="">Disabled
Disabled
Enabled
Enabled
</span></p>
</div>
<div class="column">
<p class=""><span style="font-size: 9pt; font-weight:
700;" class="">Program RAM
Size
</span></p>
<p class=""><span style="font-size: 9pt;" class="">3072 </span><span
style="font-size: 9.000000pt; font-family: 'SymbolMT'"
class="">× </span><span style="font-size: 9pt;"
class="">24-bit
2048 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
5120 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
4096 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
</span></p>
</div>
<div class="column">
<p class=""><span style="font-size: 9pt; font-weight:
700;" class="">Instruction
Cache Size
</span></p>
<p class=""><span style="font-size: 9pt;" class="">0<br
class="">
1024 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
0<br class="">
1024 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
</span></p>
</div>
<div class="column">
<p class=""><span style="font-size: 9pt; font-weight:
700;" class="">X Data RAM Size
</span></p>
<p class=""><span style="font-size: 9pt;" class="">5632 </span><span
style="font-size: 9.000000pt; font-family: 'SymbolMT'"
class="">× </span><span style="font-size: 9pt;"
class="">24-bit
5632 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
5632 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
5632 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
</span></p>
</div>
<div class="column">
<p class=""><span style="font-size: 9pt; font-weight:
700;" class="">Y Data RAM Size
</span></p>
<p class=""><span style="font-size: 9pt;" class="">5632 </span><span
style="font-size: 9.000000pt; font-family: 'SymbolMT'"
class="">× </span><span style="font-size: 9pt;"
class="">24-bit
5632 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
3584 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
3584 </span><span style="font-size: 9.000000pt;
font-family: 'SymbolMT'" class="">× </span><span
style="font-size: 9pt;" class="">24-bit
</span></p>
</div>
</div>
<img alt="page4image15160" apple-inline="yes"
id="9EE12412-1A94-4351-94CB-9E17DC715F7E"
src="cid:part1.0504496C.E49CF631@gmx.net" class=""> <img
alt="page4image15320" apple-inline="yes"
id="99CD177E-AFCB-4939-B45D-3CCB4B503B76"
src="cid:part2.01344836.17629EE7@gmx.net" class="">
<div class="layoutArea">
<div class="column">
<p class=""><span style="font-size: 9pt;" class="">1.
</span></p>
</div>
<div class="column">
<p class=""><span style="font-size: 12.000000pt;
font-family: 'TimesNewRomanPSMT'" class="">— 192 x
24-bit bootstrap ROM (disabled in sixteen-bit
compatibility mode)
</span></p>
<ul class="">
<li style="font-size: 12.000000pt; font-family:
'TimesNewRomanPSMT'" class="">
<p class=""><span style="font-size: 12pt;" class="">Off-Chip
Memory Expansion
</span></p>
<ul style="list-style-type: none" class="">
<li class="">
<p class=""><span style="font-size: 12pt;"
class="">—
Datamemoryexpansionto256Kx24-bitwordmemoryforP,X,andYmemoryusingSRAM.
</span></p>
</li>
<li class="">
<p class=""><span style="font-size: 12pt;"
class="">—
Datamemoryexpansionto16Mx24-bitwordmemoryforP,X,andYmemoryusingDRAM.
</span></p>
</li>
<li class="">
<p class=""><span style="font-size: 12pt;"
class="">—
Externalmemoryexpansionport(twenty-fourdatapinsforhighspeedexternalmemoryaccessallowing
for a large number of external accesses per
sample)
</span></p>
</li>
<li class="">
<p class=""><span style="font-size: 12pt;"
class="">— Chip select logic for glueless
interface to SRAMs
</span></p>
</li>
<li class="">
<p class=""><span style="font-size: 12pt;"
class="">— On-chip DRAM controller for
glueless interface to DRAMs</span></p>
<p class=""><span style="font-size: 12pt;"
class=""><br class="">
</span></p>
<p class=""><span style="font-size: 12pt;"
class="">regards,</span></p>
<p class=""><span style="font-size: 12pt;"
class=""><br class="">
</span></p>
<p class=""><span style="font-size: 12pt;"
class="">Terry </span></p>
</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
<div>
<blockquote type="cite" class="">
<div class="">On Feb 23, 2017, at 7:17 AM, Julian Schmidt
<<a moz-do-not-send="true"
href="mailto:elfenjunge@gmx.net" class="">elfenjunge@gmx.net</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta content="text/html; charset=utf-8"
http-equiv="Content-Type" class="">
<div bgcolor="#FFFFFF" text="#000000" class=""> I checked
the 3.3V supply and it delivers stable 3.3V<br class="">
Xtal is running at 14.3MHz and the Clock IC is
forwarding the clock to the DSP<br class="">
<br class="">
I only worked with SHARC DSPs so far, but I guess the
motorola DSP has no internal program memory and is
bootet by the uC from flash and has its OS stored in the
attached SRAM?<br class="">
<br class="">
The rest of the PCB, especially around the DSPs looks
pretty good. All sketchy looking parts where located to
the left of the uC and the DSP is on its right side.
Caps look good, too.<br class="">
<br class="">
Here is a pic of the board.<br class="">
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://chipmusik.de/dump/uQ.jpg">http://chipmusik.de/dump/uQ.jpg</a><br
class="">
<br class="">
I'm a bit concerned that the firmware update does not
seem to work, as I guess the DSP should not be involved
with that.<br class="">
Maybe an indication that it could be the flash indeed?<br
class="">
<br class="">
Any idea how to check the flash?<br class="">
<br class="">
Julian<br class="">
<br class="">
<div class="moz-cite-prefix">Am 23.02.2017 um 15:56
schrieb Christian Tecl:<br class="">
</div>
<blockquote
cite="mid:trinity-56610d4d-add9-4209-8fe5-b276ab8c4d97-1487861801509@msvc-mesg-gmx101"
type="cite" class="">
<div class="mail_android_message" style="line-height:
1; padding: 0.5em">Hello list - hello Julian....<br
class="">
I guess you already checked everything round that
flip flop, resistors, diodes etc... To me there are
also reasons to suggest a problem with power supply,
maybe you check that also before soldering that
dsp... And think about the possibility that it could
be the flash, also. Like to hear what you are
discovering. Greets Christian<br class="">
-- <br class="">
Diese Nachricht wurde von meinem Android
Mobiltelefon mit GMX Mail gesendet.</div>
<meta name="viewport" content="width=device-width"
class="">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8" class="">
<div class="mail_android_quote" style="line-height: 1;
padding: 0.3em">Am 23.02.2017, 15:24, Julian Schmidt
<a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:elfenjunge@gmx.net"><elfenjunge@gmx.net></a>
schrieb:
<blockquote class="gmail_quote" style="margin: 0.8ex
0pt 0pt 0.8ex; border-left: 1px solid rgb(204,
204, 204); padding-left: 1ex;"> I have a broken
microQ in the workshop right now.<br class="">
It arrived with a scrambled LCD that only showed
garbage.<br class="">
<br class="">
after opening it up I saw someone butcher the
D-Flipflop (bend and<br class="">
shorted pins)<br class="">
after replacing it the unit boots again, waldorf
welcome screen, os2.2,<br class="">
then preset name.<br class="">
<br class="">
yay!<br class="">
<br class="">
bad news is the unit immediately freezes. No
buttons and encoders do<br class="">
something. :(<br class="">
<br class="">
I tried the firmware update but on reveiving the
sysex data the power<br class="">
button makes a quick flash, 4 or 5 vertical bars
appear in the LCD and<br class="">
then nothing happens. Pingpong chaselight on the
Inst. 1-4 LEDs and the<br class="">
message "please play back dump" or something like
that in the screen.<br class="">
<br class="">
In factory test mode all buttons, LEDs and
encoders work.<br class="">
Audio out test does not work (silence on all outs)<br
class="">
and the DSP test fails.<br class="">
it only shows:<br class="">
<br class="">
1:----- 2:----- 3:sig!<br class="">
<br class="">
and repeatedly flashes "DSP REBOOT" every second.<br
class="">
<br class="">
So my guess is that I have a broken DSP.<br
class="">
<br class="">
Is it worth it to try and replace the DSP? they
are still in stock at<br class="">
digikey.<br class="">
But I am open for other ideas since I'm not keen
on desoldering the LQFP144.<br class="">
<br class="">
Best,<br class="">
Julian<br class="">
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