LPC546XX OTG Examples?

[hodged]

I apologize if this has been answered. It so, I cannot find it. I am using an OM13098UL which has the LPC54628 processor. My customer has a need to use USB1 as a dual roll host and device.  I have exhaustively search the code examples from the latest SDK and although there are hints as OTG support I cannot find a formal API. Or at least one that jumps out at me. I am new to NXP SDK, but not new to embedded software. The SDK seems very well organized with fore thought with respect to ease of use. I would appreciate very much some pointers to code examples or documentation to get me started on the right path. Right now, I am floundering.

Darrell

[ZhangJennie]

Hi Darrell Hodge 

LPC546xx USB only supports Device and Host. It doesn't support OTG.

If USB OTG is necessary for you, I suggest you use MIMXRT or LPC43xx.

Have a great day,
Jun Zhang

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[hodged]

Jennie:

Thank you for your prompt response. First let me say that I am not a USB expert! After looking at the schematics for LPC43xx and LPC546xx development boards I notice that both processors have a usb ID pin for detecting the presents of host-a and host-b signaling. Will OTG be supported in the future for

LPC546xx?

Thanks

Darrell

[ZhangJennie]

Darrell,

>> Will OTG be supported in the future for LPC546xx?

No. No plan to support it on LPC546xx. The limitation is on HW but not SW. there is no OTG USB controller in this chip. see datasheet:

Have a great day,
Jun Zhang

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