Hi,
I am currently developing a carrier board with compatibility in mind for both Xavier NX and Orin NX.
I am okay without using the DP pins since I never used in the Xavier NX design neither
For the USB SS0(on Orin) the USB1_N, USB1_P plus the USBSS0_RX_N/P USBSS0_TX_N/P are used. As in the Design Guide. Questions: 1. for the USB_SS1 and USB_SS2 which USB HS pins should be used ? 2. Should the recovery USB be shared with a SS USB? If so will require a switch to change between normal operation and Recovery. Or not?
On the current Xavier NX design I have the USB2 connected to a switch. (see below).
Would this mean I could not use this USB no longer for the M2 key E interface ?
1, You can use any of USB HS port to combine with SS1 or SS2
2. Only USB0 port is for recovery mode. It can be used separately or shared with a SS port. No need to add a switch.
3. It depends on your M2 key E device request. I don’t see the reason of that.
Hi @Trumany ,
thanks for your input. In my concept I would like to use the HS ports 0 and 2 for temporary Recovery and interface with USB-MCUs( just to update the firmwares) respectively.
My experience with USB_SS is quite limited thats why I am not sure if can use like that. Please see below what I had in mind.
USB_SS0: USB_HS1 + USB_SS (this is the same as in the Xavier Nx)
USB_SS1: USB_HS0 + USB_SS1
USB_SS2: USB_HS2 + USB_SS2
Note1: Slide switch to chose between recovery or USB_SS_2 function. Note2: 3-position digital switch( Dev 1 and Dev 2 are HS devices that only need to be flashed once in a while, and Dev3 is a SS device that). Note3: By default the Dev3 is going to be the one always active.But if I would like to chose the Dev1 and Dev2 would it be possible to switch between SS operation to HS operation? Note4: Here I would like to still use the USB0 for Recovery and when finished or not needed to be able to use as SS USB together with the USB_SS1.Is this possible? Note5: this is the same method as in the Xavier NX. No issue here.
Hi, we don’t have suggestion on this kind of external 3rd-party switch design. You can arrange that by use case and the switch design. For Orin NX side, you only need to follow the Design Guide as my comment #3.
Hi,
yes I realize that 3rd party switch designs are not Nvidias concern. But what I am asking is for your opinion on how to use the, for example, recovery USB0 port and still be able to use all 3 USBSS ports.
Since you are selling Jetson Orin Nx with three USB 3.2 ports you must have any kind of recommendation on how to deal with that.
What kind of switch is used or notin the end thats on the customer side.
Looking forward to your feedback.
Hi, as said previously, from NX side, you only need to follow the Design Guide. You can combine USB0 to any of USBSS port. No need to add a switch for USB0.
But what about if I need to use for example USB_SS_2 together with USB_HS_0(also used as USB Recovery) for the USB super speed / USB 3.2 in a M.2 key B device ?
When I want to use the USB recovery I would have to always remove the M.2 device.
Then I will need to separete them. Please see bellow .
@Trumany thanks fory our input. But this leaves for most cases the use from all 3 USBSSs what of questions since you will always need the USB0 for the recovery. Or is there any other method to perform “recovery” than through USB0?
No other way for recovery than USB0. It is also OK to combine USB0 to a USBSS port, but what I meant is a “better way”. You can use a switch to USB0 too, that depends on your use case. For NX, only need you to follow the detail design rules of the port.
