[hpsdr] Some ideas for an alternative system

[Leon Heller]

Although I was involved during the early stages of the project, and assumed 
responsibility for the Lionheart sub-system (now Ozymandias), I lost 
interest in it for various reasons.

Having acquired a good selection of devices (purchases and samples) 
including Cyclone II and Spartan 3 FPGAs, LTC2208 ADCs and SHARC DSPs, I 
thought it might be interesting to pursue a similar approach to the existing 
system built on Atlas, but using tiny Hirose DF12 board to board connectors 
(0.5 mm lead spacing) for connecting the various modules together (I'm using 
them on another project and they are popular on other systems such as the 
Gumstix). I envisage a main board containing the FPGA and USB interface, 
with an LPC2000 ARM controlling the USB chip (PLX NET2272), with connectors 
for two daughter boards. One daughter board would contain the ADC, another a 
SHARC DSP and codec. The main FPGA board will make a very flexible 
general-purpose FPGA board; with different daughter boards it could be used 
for completely different applications, making it of general interest for 
FPGA development purposes. The whole thing would be extremely small, perhaps 
6"x4" or so.

73, Leon
--
Leon Heller, G1HSM
leon.heller at bulldoghome.com
http://www.geocities.com/leon_heller 

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