How to change USB speed HIGH to FULL on RT1064 EVB

[namsu_mun]

Hi,

I have tried to test USB full-speed device on SDK example "evkmimxrt1064_host_hid_generic_bm". But I have no idea how to fix the speed to FULL on RT1064 EVB,  could not set USB_DEVICE_CONFIG_KHCI to '1U'.

• (Test Env.) MCUXpresso IDE v11.1.1, SDK 2.7.0
• (Test Code) evkmimxrt1064_host_hid_generic_bm

Thank you,

Namsu

[fangfang]

Hello,

We have not tested the code in the SDK and forced it to full speed.

Generally, if one connects a full speed hub, the device will be reduced to full speed.

Hope it help you. Have a nice day.

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[namsu_mun]

Hi,

Thank you for reply. I know if EVB connects a full speed hub, EVB will be full speed mode. But, I want that force EVB to FULL speed instead of HIGH speed at the initialization. Please check this issue again.

Regards,

Namsu

[fangfang · Accepted solution]

Hello,

If you want to force EVK to FULL speed. One may try PFSC bit of PORTSC1 register.

Have a nice day.

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