Read USB Node and PHY configuration registers from xgdb

[cl-b]

How can I read USB Node and PHY configuration registers from xgdb ?

I cannot find any information how to use sysreg command

[mon2]

Please review this page posted from another developer:

https://xcore.com/viewtopic.php?f=47&t=4185

[cl-b]

Thanks, I already have a look to this thread but I can't find information about fields to access USB node and USB PHY configuration registers.
The thread describe how to access node configuration registers

[mon2]

Hi. Have you seen the details inside the XU208 datasheet? There is info on the USB Node and PHY inside this document. Perhaps this is what you are after?

xmos_usb_register.png

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xmos_usb_register.png

(99.37 KiB) Not downloaded yet

[cl-b]

That's exactly the information I want to read but through xgdb. I have to use "sysreg" command.
As far as I understand the sysreg syntax command is "sysreg read $node $switch $reg".
To access node configuration $node = 0, $switch = 1 and $reg is the register address.
But I can't find which parameter values I have to use to access USB node and phy registers.

[mon2]

I think you may have answered your own question...

To access node configuration $node = 0, $switch = 1 and $reg is the register address.

$reg = 0 ; Device Identification Register

Start with $reg = 0 and validate that the response = Device ID as per datasheet - no harm to test since this is a RO = read only register.

then proceed as per datasheet with:

$reg = 4 ; Node configuration register

and so on...USB node and PHY offsets are listed in the same document.

Is this what you are after?