Kinetis MicrocontrollersのトピックRe: Kinetis USB Host and Device SDK Example

Kinetis USB Host and Device SDK Example

Keith4DSmith — Thu, 14 Jun 2018 12:42:43 GMT

Are there any Kinetis K series SDK examples that have both a USB host and a USB device in the same example?

Re: Kinetis USB Host and Device SDK Example

danielchen — Fri, 15 Jun 2018 08:37:56 GMT

Hi Keith

Please download sdk for frdm-k66 from nxp website.

Welcome | MCUXpresso SDK Builder

unzip the package, there are two demos for your requirement.

FRDM-K66F_2.4.0_0605\boards\frdmk66f\usb_examples\usb_pin_detect_hid_msd\freertos

when you connect k66 with your PC, k66 work as a msd device.

when you connect a mouse with K66, it will act as a hid host

Please also refer to this demo,

FRDM-K66F_2.4.0_0605\boards\frdmk66f\usb_examples\usb_pin_detect_hid_mouse\freertos

Regards

Daniel

Re: Kinetis USB Host and Device SDK Example

Keith4DSmith — Fri, 15 Jun 2018 12:33:54 GMT

Daniel - The example you mentioned appears to be an example of how to support OTG. Is there an example of using two ports, one as a device and one as a host simultaneously?

I have the requirement to be a USB host to communicate with a USB CDC device, while being connected to a PC as a USB CDC device.

Re: Kinetis USB Host and Device SDK Example

danielchen — Fri, 15 Jun 2018 12:57:05 GMT

Could you please let me know which board/MCU you are using?

Regards

Daniel

Re: Kinetis USB Host and Device SDK Example

Keith4DSmith — Fri, 15 Jun 2018 13:22:22 GMT

I thought I would use the K26 MCU as it has two USB ports.

Re: Kinetis USB Host and Device SDK Example

danielchen — Tue, 19 Jun 2018 06:43:53 GMT

Hi Keith Smith :

Thank you for your additional information.

I would suggest you download the MCUXpresso SDK for TWR-K65F180M board. There is a keyboard2mouse demo.

This demo implements the host and the device, where the KHCI works as host and the EHCI works as a device.

The host supports the keyboard device and device works as a mouse when connecting to the PC. It seems very similar to your requirements.

I hope it helps.

Regards

Daniel