Questions about master_control.v

GNU Radio
1

Hi,

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

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

what assign to io_0 through io_3?

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

What the difference of the two group of io_tx pins?

Thank you so much in advance!

Yan

2

On Thu, Jan 14, 2010 at 10:52, Yan N. [email protected] 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