Firas- > Has anyone tried to run USRP1 without PC? > > I have an application where a friend supported me with a standalone USRP > FPGA image. I used the PC only to load this image to the USRP using gnuradio > blocks/tools. After that I can plug-off (disconnect) the USB cable from the > PC and USRP continue to operate standalone. > > My question is, has anyone tried to load USRP FPGA image without a PC? For > example using a micro-controller (Like Microchip PIC 18F4550 which has USB > 2.0 port) with SD memory holding the image? > > What it takes/need to do so?
Altera and Xilinx FPGAs can boot from a variety of small, cheap Flash devices. I haven't looked at the USRP1 schematic in a while, but my guess is that it would take only a few mods to deadbug an appropriate Flash device and jumper as needed. Looking at the board, I don't see that Matt has left a place for the typical header with the required signals, but there are only a few and they should be available on the CY7C680 pins. Programming the Flash device is another question: one way is a socket on the USRP1 and a cheap Flash programmer (connect to PC serial port or parallel port). -Jeff _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
