Hi @felix1,
We do not have an AppNote specific to your request, but please look into the following community posts as I believe they will prove very insightful for your inquiry:
https://community.nxp.com/t5/i-MX-RT/Working-Custom-USB-example-using-Bulk-transfer-incl-code/m-p/12...
https://community.nxp.com/t5/i-MX-RT/USB-bulk-application-again/m-p/1258960
BR,
Edwin.