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<div class="moz-cite-prefix">Tripath evaluation board is sold -
thank you.<br>
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<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">On 26/04/2023 15:11, Steve Lenham
wrote:<br>
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cite="mid:f10aea0e-1498-78f1-a227-b3df1b2830bb@bendentech.co.uk">
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<p>Hi,</p>
<p>Read on for the next set of stuff off the top of the pile
looking for a new home! Today: development boards.<br>
</p>
<p>Postage at cost to wherever you are. Payment by bank transfer
or Wise preferred - can also take PayPal but with a surcharge to
cover their ridiculous fees. If you think my pricing is wrong or
would like to buy multiple items, get in touch!<br>
</p>
<p>Thanks for looking. Happy to answer any questions. More to
come!<br>
</p>
<p>Cheers,</p>
Steve L.<br>
Benden Technology
<p>1. Willem EPROM programmer (previously posted but unsold -
price reduced) - asking GBP20.<br>
</p>
<p>The Willem programmer was an open-source DIY design that
enjoyed many iterations and still forms the basis of a lot of
the cheap Far Eastern programmers. This one was built by my own
fair hand using a commercial PCB (version 3.1 ATH, if you are
Googling) and I used it for many years before upgrading. Plenty
of information is still available online including the driver
software.</p>
<p>Settings are made manually using jumpers and DIP switches,
which means you need to be careful but also makes it a very
versatile device, capable of programming all sorts of things
(EPROM, EEPROM, FLASH, micros, etc.). Communication with the
host PC is via the old-school parallel port (and it needs to be
a "real" one).</p>
<p>This one comes with a couple of adaptors that are particularly
useful for vintage synths:</p>
<p>- Adaptor for 2716 and 2732 EPROMs. The Willem handles larger
EPROMs directly but needs a pin adaptor for these. This is what
I used most.</p>
<p>- Adaptor for reading and writing Intel MCS-48
microcontrollers. This will read mask-ROM 8048/49s as found in a
lot of early Roland synths and program the EPROM equivalents
(8748/49).</p>
<p><img src="cid:part1.ZqTyirlM.hkjmv0bO@bendentech.co.uk"
alt="Willem programmer" class="" width="935" height="561"></p>
<p>Overall, a very useful device if you are willing to get a bit
"hands-on" - which hopefully everyone here is :-)<br>
</p>
<p>2. Tripath EB-TA2020 evaluation board for TA2020 2x20W Class-T
amplifier - asking GBP15.<br>
</p>
<p>Tripath were one of the pioneers of switching audio amplifiers
and made some very nice-sounding devices before, I believe,
going bust! This is an evaluation board for their then-popular
TA2020 device and can effectively be viewed as a small (10cm x
6cm) stereo amplifier module delivering 20W/channel into 4 ohms
from a 13.5V supply. Input is via phono connectors and there are
banana sockets for power and outputs. Comes with datasheets for
device and board. This was briefly used for evaluation then
stowed away.<br>
</p>
3. DLP-245PB USB/PIC microcontroller development module - asking
GBP10.
<p>This is a little plug-in (DIL) module containing a PIC16F877
micro and an FTDI FT245 USB interface, i.e. everything required
to implement a basic piece of USB hardware. The manufacturers
(DLP Design) provide USB drivers and example code, so it is a
really easy way in to USB. Not sure if I ever actually used this
- don't remember doing so, so it is basically untouched :-)</p>
<p>See <a class="moz-txt-link-freetext"
href="https://www.dlpdesign.com/usb/245pb.shtml"
moz-do-not-send="true">https://www.dlpdesign.com/usb/245pb.shtml</a>
for more details.</p>
<img src="cid:part2.zn2wBSxR.Eadcvpis@bendentech.co.uk"
moz-do-not-send="false" class="">
<p><br>
4. Elektor Altera MAX CPLD programmer/development board plus
parallel JTAG interface - asking GBP20.<br>
</p>
<p>This is a development board for the Altera MAX7000 family of
CPLDs, specifically the EPM7128. It was published in Elektor
magazine back in 2004 alongside a multipart tutorial in the
subject and I built one carefully using one of their PCBs before
doing precisely nothing with it. It has never even been powered
up. Comes with a matching Elektor parallel port JTAG interface,
but there is no reason why a more modern USB JTAG port (not
supplied) couldn't be used.</p>
<p>I can supply copies of the Elektor build info and tutorials if
desired. Programming software was Altera's Quartus suite - I
don't think I have it on file, but it's probably out there on
the Web somewhere.</p>
<img src="cid:part3.SjjqrhP4.lOPAun7E@bendentech.co.uk"
moz-do-not-send="false" class=""> <br>
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