topic Re: USB Hub code for LPC43XX in LPC Microcontrollers

USB Hub code for LPC43XX

k2 — Tue, 08 May 2018 19:57:18 GMT

I have a LPC4337 (DUAL HS USB) board designed and working with an embedded USB HUB.

I have USB HUB code working from a previous LPC54608 design.

Is there any USB HUB code that would plugin into the LPC4337 ?

back porting this code to the LPC4337 from the LPC54608 series looks really ugly.

Can anybody help or have any suggestions ?

Kevin

Re: USB Hub code for LPC43XX

Carlos_Mendoza — Fri, 11 May 2018 17:12:34 GMT

Hi Kevin,

Unfortunately we do not have hub support in our LPC4337 USB host stack at this time. If you look around our forum you will find some folks who are writing their own hub support on this other parts in this family. Perhaps you can contact them to see if they are willing to share their experience. Right now we have no plans to produce a hub driver for our host stack, but this could change if we begin to see significant demand for this.

Regards!
Carlos Mendoza
Technical Support Engineer

Re: USB Hub code for LPC43XX

eugen_bayer — Thu, 21 Jun 2018 11:59:50 GMT

No support - no business.

We will simply switch to microchip, if the small company NXP does not have the ressources - but some lonesome fighters in customer companies.

Re: USB Hub code for LPC43XX

bernhardfink — Thu, 21 Jun 2018 14:10:21 GMT

Can't (and don't want to) speak about performance of competitor's devices, but the LPC1800/4300 integrate very performant USB 2.0 peripherals. We selected for these devices the most powerful USB block from our IP vendor.

The achievable USB throughput on these MCUs is best in class.

We supported Thesycon in their development of professional USB software for various applications, especially for the LPC1800/4300 architectures:

Thesycon website: Device Driver development - USB Reference Projects - Audio, Network

and their feedback about the performance was very positive. But of course their software and service is not for free.

Re: USB Hub code for LPC43XX

k2 — Fri, 22 Jun 2018 04:13:47 GMT

I ended up writing my own HUB app (with TT support) for the LPC43XX.

I have a LPC43XX dual HS port board design with an embedded 3 port HS HUB up and running.

Its based on the LPC43XX using ULPI for the 2nd HS PHY.

Blazingly fast. It supports a 2 LUN UHS-I and UHS-II sd cards.

I'm getting 200MB/s xfer rates on the UHS-II port.

If anyone is interested in getting one let me know.

Re: USB Hub code for LPC43XX

shivrajtbm — Fri, 27 Aug 2021 07:47:06 GMT

Hi ,

can u help me for this USB hub code changes ..

I am implementing hub code to detect HID keyboard & Printer using LPC43xx only.

So, sharing of your inputs / code files for this part will be much helpful & appreciated.