Hi all, First of all, I would like to make sure that I have understood what is going to be modified. I have made a diagram with the whole Gnuradio component stack: http://img168.imageshack.us/img168/415/groveralleb2.png
1) The new usb packet will be encoded/decoded in the gnuradio uspr driver and in the FX2 firmare right? 2) The FX2 and the fpga communicate using the serial bus (SDI/SDO) (plus some control signal like usb_ctl, usb_rdy) and the usb_data bus. Will the commands be sent trough the serial bus or through the usb_data bus ? What is exactly the daughter board role and its responsibilities ? Is it only a physical interface for the antenna ? I also a few question about the format itself: I don't understand the purpose of the Tag field. Can you explain it a little bit ? I don't understand how the timestamps will work on OUT packets: How the host will know what the value of the 32 bits counter incremented by the A/D sample clock ? Is the timestamps the absolute value of the clock or a delta? SPI is used to write to the AD9862 register but what is I2C ? Thanks, Thibaud _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
