Re: [Discuss-gnuradio] questions about master_control.v

[Johnathan Corgan]

On Thu, Jan 14, 2010 at 10:52, Yan Nie <address@hidden> wrote:

> I'm trying build my own fpga bitstream by modifying usrp_sounder project.
> I've saveral questions on the module master_control.

The master_control module is actually a common file with the standard
build, not specific to the usrp_sounder image.

> what store in reg_0, reg_1, reg_2, and reg3?

These are driven in master_control and connected to io_pins.  They are
either GPIO outputs configurable from the host, debug outputs, or used
as daughterboard control signals.

> Can I monitor the signal from io_tx pins in daughter board by oscilloscope?

Yes.

> What the difference of the two group of io_tx pins?

There is a bus of these for each side of the USRP.

Johnathan