topic Re: Sample code or documents for USB Host in LPC Microcontrollers

Sample code or documents for USB Host

yasushiaoyama — Sat, 15 Jul 2017 11:05:50 GMT

Hi,

I’m developing USB host function for LPC4337 (Evaluation board OM13070).

But I cannot find out sample codes nor documents to help to make USB host function.

I download “lpcopen_3_01_lpcxpresso_nxp_lpcxpresso_4337”. There are many USB device sample code in it, but no sample about USB host.

I read USB ROM stack 1.0 document, but all API seems to be for developing USB device.

I’d really appreciate if somebody help me.

Thanks,

Yasushi

Re: Sample code or documents for USB Host

kerryzhou — Fri, 04 Aug 2017 06:12:57 GMT

Hello Yasushi Aoyama,

I find in the old lpcopen for MCBLPC4357, there has some USB host code, so you can refer to that code.

It seems you are using LPCXpresso IDE, then I attach the sample code for your reference.

Wish it helps you!

Have a great day,
Kerry

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Re: Sample code or documents for USB Host

yasushiaoyama — Tue, 08 Aug 2017 10:56:22 GMT

Thank you very much, Kerry,

I also found "lpcopen_2_20_lpcxpresso_nxp_lpcxpresso_4337" still has similar USB host code. These code seems to be removed from ver 3_xx. I checked release note of lpcopen_3_xx, but there is no description about removing USB host

code.

Any way your advice is helpful for me.

Yasushi Aoyama

Re: Sample code or documents for USB Host

kerryzhou — Wed, 09 Aug 2017 01:05:35 GMT

Hello Yasushi,

Yes, I also find the 3.xx removed the host code, that's why I give you 2.20 code.

You can refer to the 2.20 code directly.

Have a great day,
Kerry