[hpsdr] any Nios-II programmers out there?

[Phil Harman]

Hi Ken,

If its simply a matter of adding a Nios-II CPU core to the Angelia FGPA then 
I can certainly assist.  Using the free Altera Quartus tools I added a 
Nios-II CPU to Metis and in C programmed "Hello World" and sent it to the 
TTL RS232 port.

Once the CPU core been defined and included then its really over to the C 
programmers to work their magic.

However, the CPU core that you are able to build with the free Altera tools 
is fairly basic and I feel you would need to purchase a subscription to gain 
access to some of the higher performance Nios-II cores.

There are alternatives to the Nios CPU. I recall that John Melton was able 
to add a rather nice RISC processor from opencores.org  to Metis and all the 
software development tools were free.  I also think John tested another CPU 
core but can't recall the details.

I also suggest we want to think carefully about what we want a CPU to do. 
After all, one of our members has already added filtering, AGC and 
demodulation to a Mercury board in order to produce a receiver that does not 
need any DSP in an associated PC.  That still leaves a bandscope and 
waterfall but there are free FFT libraries for FPGAs that we could use.

73 Phil...VK6APH





-----Original Message----- 
From: Ken N9VV
Sent: Sunday, August 05, 2012 9:32 AM
To: OpenHPSDR
Subject: [hpsdr] any Nios-II programmers out there?

***** High Performance Software Defined Radio Discussion List *****

I see the new Angelia TRx will have a very robust FPGA
using a Cyclone-4 FPGA. Here is a link to the soft core
PC available from Altera, called Nios-II:
http://en.wikipedia.org/wiki/Nios_II

The prospect of coding DSP demodulation in Nios-II inside
the FPGA is just too big a leap for my simple mind!! <g>

It looks like our tether to the PC is fast approaching
an alternative with embedded processors or soft core FPGA
code!

I hope OpenHPSDR and Apache Labs can attract a knowledgeable
Nios-II programmer to join the Angelia effort. There is so
much promise in this new hardware.

BGA Lives!
73 de Ken N9VV
--

_______________________________________________
HPSDR Discussion List
To post msg: hpsdr at openhpsdr.org
Subscription help: 
http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
HPSDR web page: http://openhpsdr.org
Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/ 


 1344155365.0