USB custom device error

sudarshanhalse — Fri, 14 Nov 2025 09:04:58 GMT

Hello,

I am implementing a composite USB device on an RT1040 having 2 interfaces:
for reference i am using sdk example ( dev_composit_cdc_msc_disk_freertos )

Interface 0: Custom BULK interface (Vendor Specific, 0xFF/0x00/0x00)
Interface 1: Mass Storage Class (MSC) interface (0x08/0x06/0x50)

The device enumerates up to a point but always fails with Windows device manager error code 10 (CM_PROB_FAILED_START).

, @nxp , @nxp5 , @nxpnxp , @lynx , @nxp4 , @nxp3

Re: USB custom device error

EdwinHz — Tue, 18 Nov 2025 21:14:33 GMT

Hi @sudarshanhalse,

Are you using the EVK or a custom board? Does the dev_composite_cdc_msc_disk_freertos example code without any changes does enumerate and run correctly on your board? What changes did you make to the example code? When debugging the application step by step, where does the error happen?

BR,
Edwin.

topic Re: USB custom device error in MCUXpresso SDK

USB custom device error

Re: USB custom device error