Usb endpoints

[astella]

To the kind attention of the Nordic support team,

we are using nRF52840 and from the hardware manual (51 USBD) we can see:

2 control (1 IN , 1 OUT), 14 bulk/interrupt (7 IN , 7 OUT) and 2 ISO (1 IN, 1 OUT) endpoints

Is it possible to only use the 14 bulk/interrupt in order to have max 7 in and max 7 out?

I mean, is it possible to use for example 9 in and 5 out? The type of an endpoint is fixed and specialized so that it cannot be changed

by software? Should it be the case, can I have a brief explanation about this? 

Thanks for your kind attention

[ovrebekk]

Hi

The USB endpoints are organized in 7 pairs of IN/OUT. 

In other words you can not have more than 7 of either type, you are limited to 7 OUT or 7 IN max. 

Best regards
Torbjørn