LPC MicrocontrollersのトピックRe: LPC54608 - Can USB0 support HS as a Device ?

LPC54608 - Can USB0 support HS as a Device ?

k2 — Fri, 19 Jan 2018 20:58:55 GMT

LPC54608 USB0 HS Device Mode question

I have a 54608 design, I need USB0 to operate as a HS device and USB1 to operate as HS Host.

Can the USB0 operate in HS mode (device only) ?. I don't need OTG for any of it.

Is USB0 limited to FS because its only a FS PHY ? Or can it operate as a HS Device as well ?

Currently i have USB1 in HS as a host running with, USB0 in FS operating as a device (ROM API mode).

I think the ROM API limits this to FS.

If the ROM API allows HS for USB0 - that would be great, but i don't think it will.

I couldn't find any example code where USB0 is used as a HS Device (or Host) ? Only USB1.

Do I have to move to a ULPI interface to get USB0 to operate in HS ?

Kevin

Re: LPC54608 - Can USB0 support HS as a Device ?

kerryzhou — Tue, 23 Jan 2018 03:14:29 GMT

Hi Kevin,

USB0 in LPC54608 is just the full-speed device or host controller, it can't support the High-speed device.

USB1 can used for High-speed mode, USB0 module don't have the high speed function, it is not the ROM API problem, USB0 hardware can't support it.

Wish it helps you!

Have a great day,
Kerry

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Re: LPC54608 - Can USB0 support HS as a Device ?

andyjackson — Tue, 23 Jan 2018 16:59:58 GMT

Hello Kerry,

Can you clarify the situation with USB1 - can it be used in HS mode with the ROM API and if so, where can I find some example code?

Thanks for the help,

Andy

Re: LPC54608 - Can USB0 support HS as a Device ?

k2 — Mon, 29 Jan 2018 17:47:49 GMT

Kerry,

do you know of any development boards that have 2 HS PHY's ?

I see chips that 2 HS controllers - like the 43XX series - but none have 2 HS PHYS.

I guess what im looking for is a 2nd HS PHY via a ULPI chip.

I can't find anything.

Ideally what I need is using USB1 (Host mode ) in HS, and a second HS Device (probably need a ULPI chip to add the HS PHY).

Do you know of any boards that have this ?

Alternatively - do you if there is a way the FS Device (using ROM API) can support 512 size packets ?

That would move me along until i can design in a ULPI interface on my board.

Is there a ULPI app note or code example anywhere ? To show how this interfaces with a device stack ?

Kevin

Re: LPC54608 - Can USB0 support HS as a Device ?

k2 — Mon, 05 Feb 2018 18:22:18 GMT

Kerry,

I dont see the LPC 546XX family supporting ULPI ?

Can you confirm.

Because the 546XX doesnt support ULPI, my design will now move to the LPC1833 (BD 208) to support a ULPI interface.

For the LPC1833 family - Does the ROM API support the ULPI seemlessly ?

Or is there special code that needs to be implemented to make the USB1 port work as HS.

Its unclear to me how adding a ULPI chip such as the microchip will be plug and play ?

IS there any example code or APP note outlining how to implement the ULPI ?

I assume i'll be enabling the ULPI interface in the GPIO setting/functions, after that how is the ULPI seen ?

Does the USB1 port map into a different address for the ULPI to be seen ?

I assume there are some commands that need to be sent to this ULPI chip ?

Is that all done for me ?

Kevin

Re: LPC54608 - Can USB0 support HS as a Device ?

k2 — Mon, 05 Feb 2018 18:23:07 GMT