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#1 2009-Nov-06 04:10:37

bandit
Member
Registered: 2008-Aug-28
Posts: 5

Which project to choose for two radio card setup?

Hi,

I need to build a system using two radio cards. Reference design or any sophisticated functions are not needed. Only thing needed in the beginning is that signal that comes in from radio card 2 antenna is transmitted out from radio card 3 antenna and this should be a continuous flow. Custom sysgen model will be implemented which for start will just be a "dummy" block where input ports are wired to output ports.

On which project would this be easiest to build? Can I use project from tutorials (http://cmclab.rice.edu/433/demos/warpDDSExample.zip) or should I use the reference design and remove the mimotxrx and other cores from that or should I start a blank project? This will be a prestudy for later research so minimum effort solution is searched.

Depending on what base project to use, what are basic requirements to enable to two radio card operation? I tried to use reference desig 12.1. I added dummy pcore and ported the radio_bridge2_user_ADC_I/Q to input of pcore. I wanted to port the outputs of pcore to radio_bridge3_user_DAC_I/Q, but there was not that kind of option. In the reference design there is radio_bridge for both slots (2 and 3) and only one common radiocontroller is required for all the radiobridges. What is missing or what has to be changed?

-B-

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#2 2009-Nov-07 23:41:42

murphpo
Administrator
From: Rice
Registered: 2006-Jul-03
Posts: 918

Re: Which project to choose for two radio card setup?

I would suggest starting from the "Building a Simple Transmitter" example from our latest workshop. This example includes both a simple Sysgen model and C code project for configuring/controlling radios. Extending this to control two radios and to pass ADC2->DAC3 should be straightforward. The ELEC 433 example you linked to is based on this exercise, but customized for another course at Rice.

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