Combine 2 USB Descriptors

[Radoslav Malinov]

Posted on March 07, 2018 at 15:11

Hello friends!

I'm noob with STM32F103C8T6 boards and Keil uVision5 but somehow i manage to make simple projects... 

:)

 Now im trying to make a Joystic with Serial Input Output to display information on LCD but i cant combine 2 USB descriptors so to use Joystic and Serial over the USB. 

:((

 I only can make them work separately but not combined.

My questions is:  Is it possible, and if so can someone helps me with some info and basic example to understand the basics of combining 2 different USB descriptors?

Thanks!

#custom-descriptor-usb #2-usb-descriptors #stm32f103c8t6 #usb-hid

[Pavel A.]

Posted on March 07, 2018 at 15:16

This is called 'USB composite device'.  The ST libraries and samples do not currently support this, but Segger library does (maybe Keil's does too).

-- pa

[Radoslav Malinov]

Posted on March 07, 2018 at 15:29

Thanks my friend i will search some info about 

Segger library and i will try to use it.