i.MX RT Crossover MCUs中的主题 USB host example code for mimxrt1170-evk not working as expected.

USB host example code for mimxrt1170-evk not working as expected.

Shehan_Janidu — Tue, 03 Oct 2023 07:20:45 GMT

I loaded the example code given to connect USB virtual printer. The code compiles properly giving no errors. But when the code is loaded, the expected functionality doesn't take place. The overview of the full example project and expected functionality is explained in the attached pdf.

The example project name is "dev_printer_virtual_text_bm_cm7"

The project can be accessed through following link Link to project

Re: USB host example code for mimxrt1170-evk not working as expected.

EdwinHz — Tue, 03 Oct 2023 22:55:39 GMT

Hi @Shehan_Janidu,

I believe this is a duplicated post from the following link: https://community.nxp.com/t5/i-MX-RT/USB-host-example-code-for-mimxrt1170-evk-not-working-properly/td-p/1732431

If it is ok with you, I will continue supporting on that other post in order to prevent double efforts.

BR,
Edwin.

Re: USB host example code for mimxrt1170-evk not working as expected.

Shehan_Janidu — Wed, 04 Oct 2023 04:07:06 GMT

I found the solution for the post you are referring.
Yes this post is about the same code but different issue. I only need your support for this particular post @EdwinHz

More specifically the problem I have is, according to the documentation given, a software should installed automatically after running the code. But when I am running the code, the expected software does not get installed. Thats problem now I am dealing with.

Re: USB host example code for mimxrt1170-evk not working as expected.

EdwinHz — Thu, 05 Oct 2023 21:04:36 GMT

Hi @Shehan_Janidu,

You should be able to install the driver manually by following this community post: https://community.nxp.com/t5/Kinetis-Microcontrollers/quot-MCU-VIRTUAL-COM-DEMO-quot-and-demo-app-for-USB-KW24D512-can/m-p/625448

Rather than using the path specified by that post, however, you would use the following:

"<SDK installation root>\SDK_2_14_0_MIMXRT1170-EVKB.zip\middleware\usb"

By default, the SDK installation root is:

"C:\Users\<user>\mcuxpresso\02\SDKPackages"

I hope this helps,
Edwin,

Re: USB host example code for mimxrt1170-evk not working as expected.

Shehan_Janidu — Mon, 09 Oct 2023 09:35:02 GMT

I ran the code again and followed following steps,

in device manager following icons were displayed,

After that I updated the drivers both ways, manually and by clicking on "let me pick"

But even after doing that, still generic printer is not shown in the printer section,

And when I go to devices and printers folder, it shows like this,

Can u suggest what can I do to fix this issue. In addition I have a doubt to clear out. The printing process that we going to do here is fully virtual one instead of physical one. Am I right ?

@EdwinHz