I did more with the 6800E series and i new all the registers and op
codes to make em sing :)
On 3/6/2015 5:07 PM, [email protected] wrote:
65XP705P9APC was the variant I used to the point that I knew every
single register, timer, interrupt etc etc. I squeezed every drop of
performance out of those little MCUs.
*From:* David <mailto:[email protected]>
*Sent:* Friday, March 6, 2015 3:54 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] First all-digital radio transmitter
WOW I still have some brand new 6502 in a box somewhere :)
so much fun when electronics was fun to create stuff.
Now its just pull a cad database and run it thru a circuit card
printer LOL
On 03/06/2015 09:54 AM, Chuck McCown wrote:
Note: It is a TRANSMITTER. Much easier to do this trick than a
receiver. If you have a fast enough processor, any processor can do
this with a PWM output which you can bit bang a single IO line. The
impedance matching network (which will be part of the antenna, and
the antenna itself) will do the filtering and smoothing.
I synthesized DTMF with 4 outputs and some resistors with a 6502 MCU
(128 BITS of memory) running at probably 3.579545 MHz years ago.
Same trick (in theory) with a much faster processor.
*From:* Josh Reynolds <mailto:[email protected]>
*Sent:* Thursday, March 05, 2015 6:24 PM
*To:* [email protected] <mailto:[email protected]> ; [email protected]
<mailto:[email protected]>
*Subject:* [AFMUG] First all-digital radio transmitter
http://www.cambridgeconsultants.com/media/press-releases/first-all-digital-radio-transmitter
Technology innovation firm Cambridge Consultants has successfully
completed initial trials of the world’s first fully digital radio
transmitter – a turning point in wireless design and a real enabler
for the ‘Internet of Things’ (IoT) and 5G technology. It’s a radio
built purely from computing power, using the same familiar digital
technology you’d find in a computer microprocessor in your home or
office.
Unlike ‘software-defined radio’ (SDR), it’s not a mixture of analogue
and digital components – for the first time, the radio is completely
digital, which can enable new ways of using spectrum intelligently.
The innovation is set to be hugely disruptive, like a previous
Cambridge Consultants breakthrough – the development of the first
single-chip Bluetooth radio, which led to the spinout of the global
short-range wireless and audiovisual giant CSR.
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Josh Reynolds
CIO, SPITwSPOTS
www.spitwspots.com
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