topic Re: USB-HS storage to NVM with RT102x in i.MX Processors

USB-HS storage to NVM with RT102x

threeboystech — Wed, 28 Jun 2023 21:25:40 GMT

I'm using an MIMXRT1021 that is required to store USB-HS data (at least 16GB) to NVM storage.

Is there a recommended solution as to what memory and what memory configuration to use? My thoughts are an eMMC part connected to the USDHC2 peripheral using the 8-pin data interface.

Can someone share an application note link on how to make this connection?

Thanks

Re: USB-HS storage to NVM with RT102x

diego_charles — Mon, 03 Jul 2023 18:46:18 GMT

Hi @threeboystech

Do you require an eMMC over an SD card? A SD card is another flexible option.

As you may now we have several MMC examples in our SDK, and most of them are SD card based .For example sdcard_fatfs to see SD card file creating and R/W and the dev_msc_disk_bm which works as a USB to SD card bridge.

Best regards,

Diego

Re: USB-HS storage to NVM with RT102x

threeboystech — Wed, 05 Jul 2023 14:30:01 GMT

Hi Diego

Our solution will not require a SD card, we will be using direct connection to the eMMC.

Terry

Re: USB-HS storage to NVM with RT102x

threeboystech — Wed, 05 Jul 2023 14:32:59 GMT

Do you have a link to a USB Spec document that will provide details on the supported Callback events supported by the SDK? Examples on how to detect when a disk operation is started/stopped would be helpful. Searching NXP for this document has not provided any success.

Terry

Re: USB-HS storage to NVM with RT102x

diego_charles — Wed, 05 Jul 2023 15:38:45 GMT

Thanks for letting me know, Terry.

Re: USB-HS storage to NVM with RT102x

diego_charles — Mon, 10 Jul 2023 20:52:45 GMT

Hi Terry,

I am sorry for the late reply.

There is USB stack documentation detailed within SDK, please take a look to see if it helps you. See the below example

Many thanks for your patience.

Diego