USB host

Dear sir,

I am not expert just a beginner
The source code that i downloaded from the keil site include

#include <RTL.h>
#include <rl_usb.h>

i think these are RTX kernal Library files. I have no idea about RTX kernel and RL-ARM.
Please Guide me in this case.

Dear sir,

I am not expert just a beginner
The source code that i downloaded from the keil site include

#include <RTL.h>
#include <rl_usb.h>

i think these are RTX kernal Library files. I have no idea about RTX kernel and RL-ARM.
Please Guide me in this case.

RTL.h and rl_usb.h headers only mean that that is a part of Realtime Library not that it uses RTX.

Dear sir,

thanks for your support.
is it necessary to include this file RTL.h and rl_usb.h or not?
please explain this.

thanks wild,

what,s the need of including these header files.